[Kernel-packages] [Bug 1460447] Re: Boot slow, "scanning for btrfs filesystems" takes 100 seconds
I can confirm my specific failure was fixed with kernel 5.4.0-48 ... Question for original reporter Dan -- is this issue (slow btrfs scanning) still occuring for you? Now fixed? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, "scanning for btrfs filesystems" takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message "scanning for btrfs filesystems" is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, "scanning for btrfs filesystems" takes 100 seconds
OK Turns out my btrfs+floppy bug is indeed a kernel floppy matter, and
the btrfs scan just 'triggers' the fault.
The new kernel floppy maintainer says:-
This patch should fix the problem:
263c61581a38 ("block/floppy: fix contended case in floppy_queue_rq()")
The commit id in stable tree is 29ed45653bec.
> ubuntu kernel 5.4.0-42-generic
I think that these versions don't contain the fix. The fix is in the
5.4 kernel since 5.4.47 version.
SO, looks like my related comment is a red-herring and (should) be fixed
by routine updates to 5.4.0 ubuntu kernel updates!.
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https://bugs.launchpad.net/bugs/1460447
Title:
Boot slow, "scanning for btrfs filesystems" takes 100 seconds
Status in linux package in Ubuntu:
Confirmed
Bug description:
I installed 14.10 and used btrfs for /home. Later, I did a clean install of
15.04, using the same /home partition.
Ever since then, boots have been agonizingly slow; all the delay appears to
be while the message
"scanning for btrfs filesystems" is diplayed early in boot.
The system is an i7 with one disk:
root@i7:~# fdisk /dev/sda
Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x7f84
Device Boot StartEndSectors Size Id Type
/dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux
/dev/sda2 117186560 234373119 117186560 55.9G 83 Linux
/dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended
/dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris
/dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux
root@i7:~# df -T | grep sd
/dev/sda2 ext4 57542652 10103624 44492980 19% /
/dev/sda6 btrfs840043520 172076728 665321064 21% /home
I'll attach a bootchart, but I suspect the btrfs delay happens before
the bootchart starts?
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: linux-image-3.19.0-16-generic 3.19.0-16.16
ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
Uname: Linux 3.19.0-16-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC1: dank 2176 F pulseaudio
/dev/snd/controlC0: dank 2176 F pulseaudio
CurrentDesktop: Unity
Date: Sun May 31 08:53:37 2015
HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223
InstallationDate: Installed on 2015-05-16 (14 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
IwConfig:
eth0 no wireless extensions.
lono wireless extensions.
lxcbr0no wireless extensions.
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic
root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash
init=/lib/systemd/systemd-bootchart
RelatedPackageVersions:
linux-restricted-modules-3.19.0-16-generic N/A
linux-backports-modules-3.19.0-16-generic N/A
linux-firmware 1.143
RfKill:
SourcePackage: linux
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/16/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P2.50
dmi.board.name: X58 Extreme
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1460447] Re: Boot slow, "scanning for btrfs filesystems" takes 100 seconds
I can further confirm that taking out the btrfs scan in /usr/share /initramfs-tools/scripts/local-premount/btrfs fixes the intermittent boot issue for me. For me, this causes some deadlock between btfs scan and floppy driver and requires reboot, not just slow!. This may be a case of 'separate bug needed' . -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, "scanning for btrfs filesystems" takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message "scanning for btrfs filesystems" is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, "scanning for btrfs filesystems" takes 100 seconds
Oh, and to be clear, both said machines floppy working properly! Not just faulty drive giving timeouts. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, "scanning for btrfs filesystems" takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message "scanning for btrfs filesystems" is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, "scanning for btrfs filesystems" takes 100 seconds
This issue, or variant thereof, has been observed on Ubuntu 20.04 and Linux Mint 20. I'm not 100% sure yet but it SEEMS to be affecting systems with a floppy drive. Can end up with bootup-messages:- [timestamp] Btrfs loaded, crc32c=crc32c-generic Scanning for Btrfs filesystems [timestamp] floppy0: floppy_queue_rq: timeout handler died. old request running removing 'btrfs-progs' (which then removes from initrd) works around the issue reliably. I need to double-check, i think kernel command line modprobe.blacklist=floppy can also workaround issue. Last I checked, I didn't find this to be specific to a particular kernel/series. Certainly experienced this on totally different hardwre, e.g. an intel core-2-duo in compaq Dx2300, but also on a completely different HP motherboard AMD64 machine/chipset. From what I can see this is not particular hardware specific either!. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, "scanning for btrfs filesystems" takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message "scanning for btrfs filesystems" is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, "scanning for btrfs filesystems" takes 100 seconds
https://askubuntu.com/questions/836105/ubuntu-16-04-takes-long-time-to- boot-using-btrfs-and-persistent-logs suggests disabling COW on the systemd journal directory may help. Avoiding / as btrfs, and using it just for e.g. /var/lib/lxd, may be an option for some people. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, "scanning for btrfs filesystems" takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message "scanning for btrfs filesystems" is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, "scanning for btrfs filesystems" takes 100 seconds
Thanks, jvandenbroek – Method 2 fixed it. Although naming a resume device leads to the same behaviour: when running `update-initramfs` it complains about "target cryptswap1 has a random key, skipped " and boot process is hanging again. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, "scanning for btrfs filesystems" takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message "scanning for btrfs filesystems" is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, "scanning for btrfs filesystems" takes 100 seconds
I thought it hang on 'scanning for btrfs', but it was actually the resume service/method causing the delay. In my case the resume/swap device is on a LV, could solve it by using this instruction (first method): https://askubuntu.com/questions/1037457/slow-boot-with-ssd-and- lvm-on-new-install-of-18-04 So it seems that if the swap is a LV, UUID no longer works (which did work fine on 17.10) and you now need to specify the mapper path instead. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, "scanning for btrfs filesystems" takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message "scanning for btrfs filesystems" is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, "scanning for btrfs filesystems" takes 100 seconds
I am experiencing the same issue on ubuntu 18.04. root and home are both on btrfs, so purging the btrfs package is not an option. During the boot the system stops and waits following the message "scanning for btrfs..." -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, "scanning for btrfs filesystems" takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message "scanning for btrfs filesystems" is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, "scanning for btrfs filesystems" takes 100 seconds
Same on 18.04, but I'm using btrfs for both root and home, so can't purge the package.. Any idea? It hangs for about 30 sec before continuing, annoying to have this slow boots on a SSD.. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, "scanning for btrfs filesystems" takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message "scanning for btrfs filesystems" is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, "scanning for btrfs filesystems" takes 100 seconds
I saw this as well on 18.04 during boot. Since /usr/share/initramfs-tools/scripts/local-premount/btrfs calls for the scan, you can workaround this issue by dealing with that file. Since I wasn't using BTRFS regularly, I purged the file through sudo apt purge btrfs-progs -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, "scanning for btrfs filesystems" takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message "scanning for btrfs filesystems" is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, "scanning for btrfs filesystems" takes 100 seconds
I'm not using btrfs and get this on 16.04 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, "scanning for btrfs filesystems" takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message "scanning for btrfs filesystems" is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, "scanning for btrfs filesystems" takes 100 seconds
I can confirm that this is still the case on 16.04. I moved my home folder to a btrfs partition and now it takes my computer an extra minute or so to boot (during which it's just sitting on a Ubuntu-purple blank screen, no indicator). Time to change the partition to ext4... -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, "scanning for btrfs filesystems" takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message "scanning for btrfs filesystems" is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, "scanning for btrfs filesystems" takes 100 seconds
yep, getting this on 16.04 also!! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, "scanning for btrfs filesystems" takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message "scanning for btrfs filesystems" is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, "scanning for btrfs filesystems" takes 100 seconds
This is back with 16.04, and affects multiple systems. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, "scanning for btrfs filesystems" takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message "scanning for btrfs filesystems" is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, "scanning for btrfs filesystems" takes 100 seconds
Upgrading to ubuntu 15.10 magically improved things. It's possible it was running fsck, or something. I would like to close this as fixed. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, "scanning for btrfs filesystems" takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message "scanning for btrfs filesystems" is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, "scanning for btrfs filesystems" takes 100 seconds
I have an I7 with 12G and SSD base drive, with UBUNTU alongside Win 8. UBUNTU 15.04 takes 100 seconds to boot on that system. Win 8 boots in about 20 seconds. 14.10 booted MUCH faster. I haven't measured the difference, but gut feel tells me the developers did something stupid. USER EXPERIENCE, Canonical. TAKE A LESSON FROM APPLE . USER EXPERIENCE COMES FIRST. We want fast booting and a smooth, fast, hiccup-free, gorgeous, intuitive user interface. No bright ideas like common core or new math or political correctness. Just smooth, fast, clean booting and UI. That and staying relatively virus free will win the world's devotion. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, "scanning for btrfs filesystems" takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message "scanning for btrfs filesystems" is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, scanning for btrfs filesystems takes 100 seconds
and then doing update-initramfs -u of course -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, scanning for btrfs filesystems takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message scanning for btrfs filesystems is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 Vivid Vervet - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, scanning for btrfs filesystems takes 100 seconds
Editing /usr/share/initramfs-tools/scripts/local-premount/btrfs to remove the scan speeds up boots for me on 4.0.0-4-generic wily. That'll stop you from being able to mount a multi-device filesystem as root, which I do not need. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, scanning for btrfs filesystems takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message scanning for btrfs filesystems is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 Vivid Vervet - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, scanning for btrfs filesystems takes 100 seconds
It definitely changed in boot time by me adding a btrfs-formatted block device to the system (/dev/sdb, without a partition table) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, scanning for btrfs filesystems takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message scanning for btrfs filesystems is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 Vivid Vervet - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, scanning for btrfs filesystems takes 100 seconds
Sorry for noise. Disabling btrfs scan did improve boot time, i just had other (DHCP) issues also. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, scanning for btrfs filesystems takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message scanning for btrfs filesystems is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 Vivid Vervet - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, scanning for btrfs filesystems takes 100 seconds
Hold on, removing the scan was not a complete solution. I still have slow boots, caused by something else. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, scanning for btrfs filesystems takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message scanning for btrfs filesystems is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 Vivid Vervet - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, scanning for btrfs filesystems takes 100 seconds
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.1 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as Confirmed. Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc6-unstable/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, scanning for btrfs filesystems takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message scanning for btrfs filesystems is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 Vivid Vervet - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, scanning for btrfs filesystems takes 100 seconds
** Attachment added: bootchart-20150531-0837.svg https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+attachment/4407664/+files/bootchart-20150531-0837.svg -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, scanning for btrfs filesystems takes 100 seconds Status in linux package in Ubuntu: New Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message scanning for btrfs filesystems is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 Vivid Vervet - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1460447] Re: Boot slow, scanning for btrfs filesystems takes 100 seconds
** Changed in: linux (Ubuntu) Importance: Undecided = High -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460447 Title: Boot slow, scanning for btrfs filesystems takes 100 seconds Status in linux package in Ubuntu: Confirmed Bug description: I installed 14.10 and used btrfs for /home. Later, I did a clean install of 15.04, using the same /home partition. Ever since then, boots have been agonizingly slow; all the delay appears to be while the message scanning for btrfs filesystems is diplayed early in boot. The system is an i7 with one disk: root@i7:~# fdisk /dev/sda Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x7f84 Device Boot StartEndSectors Size Id Type /dev/sda1 * 2048 117186559 117184512 55.9G 83 Linux /dev/sda2 117186560 234373119 117186560 55.9G 83 Linux /dev/sda3 234375166 1953523711 1719148546 819.8G 5 Extended /dev/sda5 234375168 273434623 39059456 18.6G 82 Linux swap / Solaris /dev/sda6 273436672 1953523711 1680087040 801.1G 83 Linux root@i7:~# df -T | grep sd /dev/sda2 ext4 57542652 10103624 44492980 19% / /dev/sda6 btrfs840043520 172076728 665321064 21% /home I'll attach a bootchart, but I suspect the btrfs delay happens before the bootchart starts? ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: dank 2176 F pulseaudio /dev/snd/controlC0: dank 2176 F pulseaudio CurrentDesktop: Unity Date: Sun May 31 08:53:37 2015 HibernationDevice: RESUME=UUID=417f2bba-dea3-496b-ad18-702d4dc6f223 InstallationDate: Installed on 2015-05-16 (14 days ago) InstallationMedia: Ubuntu 15.04 Vivid Vervet - Release amd64 (20150422) IwConfig: eth0 no wireless extensions. lono wireless extensions. lxcbr0no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=270a0d36-9ed9-4e58-b909-175db447838d ro quiet splash init=/lib/systemd/systemd-bootchart RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.50 dmi.board.name: X58 Extreme dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd08/16/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX58Extreme:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
