[Desktop-packages] [Bug 1398859] Re: unmounting NTFS causes mount.ntfs process to get stuck in eternal kernel deep sleep
> Curiously I do not see this when running the tests on my laptop
And of course in the minute I write this it does happen again (I ran the
test maybe 20 times today, and only just now it happened):
[11359.569157] INFO: task systemd-udevd:341 blocked for more than 120 seconds.
[11359.569163] Not tainted 4.8.0-29-generic
#31~lp1626436ProposedWithTwoPatches
[11359.569165] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[11359.569167] systemd-udevd D a31788e77ba8 0 341 1 0x0100
[11359.569173] a31788e77ba8 00ff84c71a68 a3149967
a31788e82ac0
[11359.569177] 88e77db0 a31788e78000 a317893bc070
a317893bc088
[11359.569179] a31788e77be0 a3149cf771c0 a31788e77bc0
85296905
[11359.569182] Call Trace:
[11359.569190] [] schedule+0x35/0x80
[11359.569193] [] rwsem_down_read_failed+0x103/0x160
[11359.569197] [] call_rwsem_down_read_failed+0x18/0x30
[11359.569200] [] down_read+0x20/0x40
[11359.569202] [] get_super.part.7+0x95/0xd0
[11359.569204] [] get_super+0x26/0x30
[11359.569208] [] fsync_bdev+0x18/0x60
[11359.569211] [] invalidate_partition+0x24/0x50
[11359.569213] [] rescan_partitions+0x53/0x2b0
[11359.569216] [] ? security_capable+0x48/0x60
[11359.569218] [] __blkdev_reread_part+0x65/0x70
[11359.569220] [] blkdev_reread_part+0x23/0x40
[11359.569222] [] blkdev_ioctl+0x425/0x910
[11359.569225] [] ? __seccomp_filter+0x67/0x260
[11359.569228] [] block_ioctl+0x3d/0x50
[11359.569231] [] do_vfs_ioctl+0xa3/0x610
[11359.569233] [] ? __secure_computing+0x43/0xe0
[11359.569236] [] ? syscall_trace_enter+0xce/0x2f0
[11359.569239] [] SyS_ioctl+0x79/0x90
[11359.569241] [] do_syscall_64+0x5e/0xc0
[11359.569244] [] entry_SYSCALL64_slow_path+0x25/0x25
[11359.569320] INFO: task mount.ntfs:15670 blocked for more than 120 seconds.
[11359.569323] Not tainted 4.8.0-29-generic
#31~lp1626436ProposedWithTwoPatches
[11359.569324] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[11359.569325] mount.ntfs D a314d0d1bd68 0 15670 5268 0x
[11359.569329] a314d0d1bd68 00010003 a3178bef9c80
a3149967
[11359.569332] 3d862ecf a314d0d1c000 a3149cf771dc
a3149967
[11359.569334] a3149cf771e0 a314d0d1bd80
85296905
[11359.569337] Call Trace:
[11359.569340] [] schedule+0x35/0x80
[11359.569342] [] schedule_preempt_disabled+0xe/0x10
[11359.569344] [] __mutex_lock_slowpath+0xb9/0x130
[11359.569347] [] mutex_lock+0x1f/0x30
[11359.569350] [] blkdev_put+0x20/0x110
[11359.569352] [] blkdev_close+0x34/0x70
[11359.569354] [] __fput+0xe7/0x230
[11359.569356] [] fput+0xe/0x10
[11359.569358] [] task_work_run+0x80/0xa0
[11359.569361] [] exit_to_usermode_loop+0xc2/0xd0
[11359.569363] [] syscall_return_slowpath+0x4e/0x60
[11359.569366] [] entry_SYSCALL_64_fastpath+0xa6/0xa8
root 15670 0.0 0.0 16040 460 ?Ds 10:41 0:00
/sbin/mount.ntfs /dev/sdb /run/media/root/553BDB6430706196 -o
rw,nodev,nosuid,uid=0,gid=0,uhelper=udisks2
(uninterruptible kernel deep sleep, 'D' state).
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https://bugs.launchpad.net/bugs/1398859
Title:
unmounting NTFS causes mount.ntfs process to get stuck in eternal
kernel deep sleep
Status in linux package in Ubuntu:
Confirmed
Status in udisks2 package in Ubuntu:
Fix Released
Bug description:
Since Mid-November the udisks2 test (https://jenkins.qa.ubuntu.com/job
/vivid-adt-udisks2/? shows it happened between Nov 13 and 19) exhibits
a regression with NTFS: Unmounting causes the ntfs-3g process to go
into kernel deep sleep and umount hangs forever.
This can be reproduced with
sudo apt install ntfs-3g
sudo modprobe scsi_debug
# check dmesg which drive this created; e. g. /dev/sda
sudo mkntfs -F /dev/sda
sudo mount /dev/sda /mnt
Now you have a process which is happy:
root 12821 0.0 0.0 15272 1948 ?Ss 15:49 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
You can work with /mnt, edit files, etc. But now unmount:
sudo umount /mnt
This never returns, and the process goes into uninterruptible kernel
sleep ("D"):
root 12928 0.0 0.0 15272 1948 ?Ds 15:55 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
The strace for the umount until the hang is
ubuntu@autopkgtest:~$ sudo strace -vvtts1024 -p 12928
Process 12928 attached
15:56:17.938299 read(4,
"0\0\0\0\2\0\0\0\2\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0",
135168) = 48
15:56:22.338931 read(4,
"(\0\0\0&\0\0\0\3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0",
135168) = 40
15:56:22.339637 sendto(5, "<29>Dec 3 15:56:22 ntfs-3g[12928]: Unmounting
/dev/sda ()\n", 59, MSG_NOSIGNAL, NULL, 0) = 59
15:56:22.340509
[Desktop-packages] [Bug 1398859] Re: unmounting NTFS causes mount.ntfs process to get stuck in eternal kernel deep sleep
I also see this with exfat, so it rather seems to be related to fuse (as
both ntfs-3g and exfat use fuse). Curiously I do not see this when
running the tests on my laptop or on the Scalingstack cloud infra, just
when I run them in QEMU.
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https://bugs.launchpad.net/bugs/1398859
Title:
unmounting NTFS causes mount.ntfs process to get stuck in eternal
kernel deep sleep
Status in linux package in Ubuntu:
Confirmed
Status in udisks2 package in Ubuntu:
Fix Released
Bug description:
Since Mid-November the udisks2 test (https://jenkins.qa.ubuntu.com/job
/vivid-adt-udisks2/? shows it happened between Nov 13 and 19) exhibits
a regression with NTFS: Unmounting causes the ntfs-3g process to go
into kernel deep sleep and umount hangs forever.
This can be reproduced with
sudo apt install ntfs-3g
sudo modprobe scsi_debug
# check dmesg which drive this created; e. g. /dev/sda
sudo mkntfs -F /dev/sda
sudo mount /dev/sda /mnt
Now you have a process which is happy:
root 12821 0.0 0.0 15272 1948 ?Ss 15:49 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
You can work with /mnt, edit files, etc. But now unmount:
sudo umount /mnt
This never returns, and the process goes into uninterruptible kernel
sleep ("D"):
root 12928 0.0 0.0 15272 1948 ?Ds 15:55 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
The strace for the umount until the hang is
ubuntu@autopkgtest:~$ sudo strace -vvtts1024 -p 12928
Process 12928 attached
15:56:17.938299 read(4,
"0\0\0\0\2\0\0\0\2\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0",
135168) = 48
15:56:22.338931 read(4,
"(\0\0\0&\0\0\0\3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0",
135168) = 40
15:56:22.339637 sendto(5, "<29>Dec 3 15:56:22 ntfs-3g[12928]: Unmounting
/dev/sda ()\n", 59, MSG_NOSIGNAL, NULL, 0) = 59
15:56:22.340509 fsync(3)= 0
15:56:22.341188 fcntl(3, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=0,
len=0}) = 0
15:56:22.341759 close(3
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ntfs-3g 1:2013.1.13AR.1-2ubuntu3
ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
Uname: Linux 3.16.0-25-generic x86_64
ApportVersion: 2.15-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Dec 3 15:48:12 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-11-20 (13 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20141119)
SourcePackage: ntfs-3g
UpgradeStatus: No upgrade log present (probably fresh install)
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[Desktop-packages] [Bug 1398859] Re: unmounting NTFS causes mount.ntfs process to get stuck in eternal kernel deep sleep
The workaround doesn't work any more, and the test does not actually
depend on ntfs-3g any more, so this must rather be fixed in our base
images.
** Changed in: udisks2 (Ubuntu)
Status: In Progress => Fix Released
** Changed in: udisks2 (Ubuntu)
Milestone: ubuntu-16.03 => None
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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1398859
Title:
unmounting NTFS causes mount.ntfs process to get stuck in eternal
kernel deep sleep
Status in linux package in Ubuntu:
Confirmed
Status in udisks2 package in Ubuntu:
Fix Released
Bug description:
Since Mid-November the udisks2 test (https://jenkins.qa.ubuntu.com/job
/vivid-adt-udisks2/? shows it happened between Nov 13 and 19) exhibits
a regression with NTFS: Unmounting causes the ntfs-3g process to go
into kernel deep sleep and umount hangs forever.
This can be reproduced with
sudo apt install ntfs-3g
sudo modprobe scsi_debug
# check dmesg which drive this created; e. g. /dev/sda
sudo mkntfs -F /dev/sda
sudo mount /dev/sda /mnt
Now you have a process which is happy:
root 12821 0.0 0.0 15272 1948 ?Ss 15:49 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
You can work with /mnt, edit files, etc. But now unmount:
sudo umount /mnt
This never returns, and the process goes into uninterruptible kernel
sleep ("D"):
root 12928 0.0 0.0 15272 1948 ?Ds 15:55 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
The strace for the umount until the hang is
ubuntu@autopkgtest:~$ sudo strace -vvtts1024 -p 12928
Process 12928 attached
15:56:17.938299 read(4,
"0\0\0\0\2\0\0\0\2\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0",
135168) = 48
15:56:22.338931 read(4,
"(\0\0\0&\0\0\0\3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0",
135168) = 40
15:56:22.339637 sendto(5, "<29>Dec 3 15:56:22 ntfs-3g[12928]: Unmounting
/dev/sda ()\n", 59, MSG_NOSIGNAL, NULL, 0) = 59
15:56:22.340509 fsync(3)= 0
15:56:22.341188 fcntl(3, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=0,
len=0}) = 0
15:56:22.341759 close(3
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ntfs-3g 1:2013.1.13AR.1-2ubuntu3
ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
Uname: Linux 3.16.0-25-generic x86_64
ApportVersion: 2.15-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Dec 3 15:48:12 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-11-20 (13 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20141119)
SourcePackage: ntfs-3g
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
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[Desktop-packages] [Bug 1398859] Re: unmounting NTFS causes mount.ntfs process to get stuck in eternal kernel deep sleep
The kernel issue still happens (see
http://autopkgtest.ubuntu.com/packages/u/udisks2/xenial/amd64/), so the
workaround needs to come back.
** Changed in: udisks2 (Ubuntu)
Status: Fix Released => In Progress
** Changed in: udisks2 (Ubuntu)
Milestone: ubuntu-15.01 => ubuntu-16.03
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to udisks2 in Ubuntu.
https://bugs.launchpad.net/bugs/1398859
Title:
unmounting NTFS causes mount.ntfs process to get stuck in eternal
kernel deep sleep
Status in linux package in Ubuntu:
Confirmed
Status in udisks2 package in Ubuntu:
In Progress
Bug description:
Since Mid-November the udisks2 test (https://jenkins.qa.ubuntu.com/job
/vivid-adt-udisks2/? shows it happened between Nov 13 and 19) exhibits
a regression with NTFS: Unmounting causes the ntfs-3g process to go
into kernel deep sleep and umount hangs forever.
This can be reproduced with
sudo apt install ntfs-3g
sudo modprobe scsi_debug
# check dmesg which drive this created; e. g. /dev/sda
sudo mkntfs -F /dev/sda
sudo mount /dev/sda /mnt
Now you have a process which is happy:
root 12821 0.0 0.0 15272 1948 ?Ss 15:49 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
You can work with /mnt, edit files, etc. But now unmount:
sudo umount /mnt
This never returns, and the process goes into uninterruptible kernel
sleep ("D"):
root 12928 0.0 0.0 15272 1948 ?Ds 15:55 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
The strace for the umount until the hang is
ubuntu@autopkgtest:~$ sudo strace -vvtts1024 -p 12928
Process 12928 attached
15:56:17.938299 read(4,
"0\0\0\0\2\0\0\0\2\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0",
135168) = 48
15:56:22.338931 read(4,
"(\0\0\0&\0\0\0\3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0",
135168) = 40
15:56:22.339637 sendto(5, "<29>Dec 3 15:56:22 ntfs-3g[12928]: Unmounting
/dev/sda ()\n", 59, MSG_NOSIGNAL, NULL, 0) = 59
15:56:22.340509 fsync(3)= 0
15:56:22.341188 fcntl(3, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=0,
len=0}) = 0
15:56:22.341759 close(3
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ntfs-3g 1:2013.1.13AR.1-2ubuntu3
ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
Uname: Linux 3.16.0-25-generic x86_64
ApportVersion: 2.15-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Dec 3 15:48:12 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-11-20 (13 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20141119)
SourcePackage: ntfs-3g
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
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[Desktop-packages] [Bug 1398859] Re: unmounting NTFS causes mount.ntfs process to get stuck in eternal kernel deep sleep
** Changed in: linux (Ubuntu)
Importance: Undecided = High
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https://bugs.launchpad.net/bugs/1398859
Title:
unmounting NTFS causes mount.ntfs process to get stuck in eternal
kernel deep sleep
Status in linux package in Ubuntu:
Confirmed
Status in udisks2 package in Ubuntu:
Fix Released
Bug description:
Since Mid-November the udisks2 test (https://jenkins.qa.ubuntu.com/job
/vivid-adt-udisks2/? shows it happened between Nov 13 and 19) exhibits
a regression with NTFS: Unmounting causes the ntfs-3g process to go
into kernel deep sleep and umount hangs forever.
This can be reproduced with
sudo apt install ntfs-3g
sudo modprobe scsi_debug
# check dmesg which drive this created; e. g. /dev/sda
sudo mkntfs -F /dev/sda
sudo mount /dev/sda /mnt
Now you have a process which is happy:
root 12821 0.0 0.0 15272 1948 ?Ss 15:49 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
You can work with /mnt, edit files, etc. But now unmount:
sudo umount /mnt
This never returns, and the process goes into uninterruptible kernel
sleep (D):
root 12928 0.0 0.0 15272 1948 ?Ds 15:55 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
The strace for the umount until the hang is
ubuntu@autopkgtest:~$ sudo strace -vvtts1024 -p 12928
Process 12928 attached
15:56:17.938299 read(4,
0\0\0\0\2\0\0\0\2\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0,
135168) = 48
15:56:22.338931 read(4,
(\0\0\0\0\0\0\3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0,
135168) = 40
15:56:22.339637 sendto(5, 29Dec 3 15:56:22 ntfs-3g[12928]: Unmounting
/dev/sda ()\n, 59, MSG_NOSIGNAL, NULL, 0) = 59
15:56:22.340509 fsync(3)= 0
15:56:22.341188 fcntl(3, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=0,
len=0}) = 0
15:56:22.341759 close(3
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ntfs-3g 1:2013.1.13AR.1-2ubuntu3
ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
Uname: Linux 3.16.0-25-generic x86_64
ApportVersion: 2.15-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Dec 3 15:48:12 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-11-20 (13 days ago)
InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20141119)
SourcePackage: ntfs-3g
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1398859/+subscriptions
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[Desktop-packages] [Bug 1398859] Re: unmounting NTFS causes mount.ntfs process to get stuck in eternal kernel deep sleep
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to udisks2 in Ubuntu.
https://bugs.launchpad.net/bugs/1398859
Title:
unmounting NTFS causes mount.ntfs process to get stuck in eternal
kernel deep sleep
Status in linux package in Ubuntu:
New
Status in udisks2 package in Ubuntu:
Fix Released
Bug description:
Since Mid-November the udisks2 test (https://jenkins.qa.ubuntu.com/job
/vivid-adt-udisks2/? shows it happened between Nov 13 and 19) exhibits
a regression with NTFS: Unmounting causes the ntfs-3g process to go
into kernel deep sleep and umount hangs forever.
This can be reproduced with
sudo apt install ntfs-3g
sudo modprobe scsi_debug
# check dmesg which drive this created; e. g. /dev/sda
sudo mkntfs -F /dev/sda
sudo mount /dev/sda /mnt
Now you have a process which is happy:
root 12821 0.0 0.0 15272 1948 ?Ss 15:49 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
You can work with /mnt, edit files, etc. But now unmount:
sudo umount /mnt
This never returns, and the process goes into uninterruptible kernel
sleep (D):
root 12928 0.0 0.0 15272 1948 ?Ds 15:55 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
The strace for the umount until the hang is
ubuntu@autopkgtest:~$ sudo strace -vvtts1024 -p 12928
Process 12928 attached
15:56:17.938299 read(4,
0\0\0\0\2\0\0\0\2\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0,
135168) = 48
15:56:22.338931 read(4,
(\0\0\0\0\0\0\3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0,
135168) = 40
15:56:22.339637 sendto(5, 29Dec 3 15:56:22 ntfs-3g[12928]: Unmounting
/dev/sda ()\n, 59, MSG_NOSIGNAL, NULL, 0) = 59
15:56:22.340509 fsync(3)= 0
15:56:22.341188 fcntl(3, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=0,
len=0}) = 0
15:56:22.341759 close(3
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ntfs-3g 1:2013.1.13AR.1-2ubuntu3
ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
Uname: Linux 3.16.0-25-generic x86_64
ApportVersion: 2.15-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Dec 3 15:48:12 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-11-20 (13 days ago)
InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20141119)
SourcePackage: ntfs-3g
UpgradeStatus: No upgrade log present (probably fresh install)
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[Desktop-packages] [Bug 1398859] Re: unmounting NTFS causes mount.ntfs process to get stuck in eternal kernel deep sleep
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
** Tags added: bot-stop-nagging
--
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https://bugs.launchpad.net/bugs/1398859
Title:
unmounting NTFS causes mount.ntfs process to get stuck in eternal
kernel deep sleep
Status in linux package in Ubuntu:
Confirmed
Status in udisks2 package in Ubuntu:
Fix Released
Bug description:
Since Mid-November the udisks2 test (https://jenkins.qa.ubuntu.com/job
/vivid-adt-udisks2/? shows it happened between Nov 13 and 19) exhibits
a regression with NTFS: Unmounting causes the ntfs-3g process to go
into kernel deep sleep and umount hangs forever.
This can be reproduced with
sudo apt install ntfs-3g
sudo modprobe scsi_debug
# check dmesg which drive this created; e. g. /dev/sda
sudo mkntfs -F /dev/sda
sudo mount /dev/sda /mnt
Now you have a process which is happy:
root 12821 0.0 0.0 15272 1948 ?Ss 15:49 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
You can work with /mnt, edit files, etc. But now unmount:
sudo umount /mnt
This never returns, and the process goes into uninterruptible kernel
sleep (D):
root 12928 0.0 0.0 15272 1948 ?Ds 15:55 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
The strace for the umount until the hang is
ubuntu@autopkgtest:~$ sudo strace -vvtts1024 -p 12928
Process 12928 attached
15:56:17.938299 read(4,
0\0\0\0\2\0\0\0\2\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0,
135168) = 48
15:56:22.338931 read(4,
(\0\0\0\0\0\0\3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0,
135168) = 40
15:56:22.339637 sendto(5, 29Dec 3 15:56:22 ntfs-3g[12928]: Unmounting
/dev/sda ()\n, 59, MSG_NOSIGNAL, NULL, 0) = 59
15:56:22.340509 fsync(3)= 0
15:56:22.341188 fcntl(3, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=0,
len=0}) = 0
15:56:22.341759 close(3
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ntfs-3g 1:2013.1.13AR.1-2ubuntu3
ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
Uname: Linux 3.16.0-25-generic x86_64
ApportVersion: 2.15-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Dec 3 15:48:12 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-11-20 (13 days ago)
InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20141119)
SourcePackage: ntfs-3g
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
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[Desktop-packages] [Bug 1398859] Re: unmounting NTFS causes mount.ntfs process to get stuck in eternal kernel deep sleep
This bug was fixed in the package udisks2 - 2.1.4-1git2
---
udisks2 (2.1.4-1git2) vivid; urgency=medium
* debian/tests/upstream-system: Work around eternal udev BLKRRPART ioctl
hang with ntfs-3g (LP: #1398859)
-- Martin Pitt martin.p...@ubuntu.com Fri, 02 Jan 2015 17:20:05 +0100
** Changed in: udisks2 (Ubuntu)
Status: Fix Committed = Fix Released
--
You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1398859
Title:
unmounting NTFS causes mount.ntfs process to get stuck in eternal
kernel deep sleep
Status in udisks2 package in Ubuntu:
Fix Released
Bug description:
Since Mid-November the udisks2 test (https://jenkins.qa.ubuntu.com/job
/vivid-adt-udisks2/? shows it happened between Nov 13 and 19) exhibits
a regression with NTFS: Unmounting causes the ntfs-3g process to go
into kernel deep sleep and umount hangs forever.
This can be reproduced with
sudo apt install ntfs-3g
sudo modprobe scsi_debug
# check dmesg which drive this created; e. g. /dev/sda
sudo mkntfs -F /dev/sda
sudo mount /dev/sda /mnt
Now you have a process which is happy:
root 12821 0.0 0.0 15272 1948 ?Ss 15:49 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
You can work with /mnt, edit files, etc. But now unmount:
sudo umount /mnt
This never returns, and the process goes into uninterruptible kernel
sleep (D):
root 12928 0.0 0.0 15272 1948 ?Ds 15:55 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
The strace for the umount until the hang is
ubuntu@autopkgtest:~$ sudo strace -vvtts1024 -p 12928
Process 12928 attached
15:56:17.938299 read(4,
0\0\0\0\2\0\0\0\2\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0,
135168) = 48
15:56:22.338931 read(4,
(\0\0\0\0\0\0\3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0,
135168) = 40
15:56:22.339637 sendto(5, 29Dec 3 15:56:22 ntfs-3g[12928]: Unmounting
/dev/sda ()\n, 59, MSG_NOSIGNAL, NULL, 0) = 59
15:56:22.340509 fsync(3)= 0
15:56:22.341188 fcntl(3, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=0,
len=0}) = 0
15:56:22.341759 close(3
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ntfs-3g 1:2013.1.13AR.1-2ubuntu3
ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
Uname: Linux 3.16.0-25-generic x86_64
ApportVersion: 2.15-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Dec 3 15:48:12 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-11-20 (13 days ago)
InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20141119)
SourcePackage: ntfs-3g
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
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[Desktop-packages] [Bug 1398859] Re: unmounting NTFS causes mount.ntfs process to get stuck in eternal kernel deep sleep
strace of udevd while it's hanging:
10134 open(/dev/sda, O_RDONLY|O_NONBLOCK|O_NOFOLLOW|O_CLOEXEC) = 11
10134 flock(11, LOCK_EX|LOCK_NB)= 0
10134 ioctl(11, BLKRRPART, 0
Corresponding kernel trace:
[ 720.228114] INFO: task systemd-udevd:10134 blocked for more than 120 seconds.
[ 720.230656] Not tainted 3.16.0-28-generic #38-Ubuntu
[ 720.232666] echo 0 /proc/sys/kernel/hung_task_timeout_secs disables this
message.
[ 720.236283] systemd-udevd D 88007fc13840 0 10134 1 0x0007
[ 720.236293] 88007b76fcd0 0086 880037641e90
00013840
[ 720.236298] 88007b76ffd8 00013840 880037641e90
880037641e90
[ 720.236302] 8800371c5068 8800371c5080 88007be723c0
[ 720.236306] Call Trace:
[ 720.236320] [81785049] schedule+0x29/0x70
[ 720.236326] [817888b5] rwsem_down_read_failed+0xf5/0x190
[ 720.236334] [811fc743] ? find_inode+0xa3/0xb0
[ 720.236341] [813a9284] call_rwsem_down_read_failed+0x14/0x30
[ 720.236346] [817881e0] ? down_read+0x20/0x30
[ 720.236351] [811e3db7] get_super+0x97/0xe0
[ 720.236357] [812197a4] fsync_bdev+0x14/0x60
[ 720.236363] [8137b604] invalidate_partition+0x24/0x50
[ 720.236369] [8137e3cb] drop_partitions.isra.12+0x1b/0x40
[ 720.236373] [8137e88e] rescan_partitions+0x3e/0x2a0
[ 720.236377] [8137a4dc] blkdev_ioctl+0x71c/0x7c0
[ 720.236382] [81218e3d] block_ioctl+0x3d/0x50
[ 720.236386] [811f5138] do_vfs_ioctl+0x2c8/0x4a0
[ 720.236393] [81082f30] ? ptrace_notify+0x60/0x110
[ 720.236397] [811f5391] SyS_ioctl+0x81/0xa0
[ 720.236402] [8178a0ff] tracesys+0xe1/0xe6
** Attachment added: udevd trace for umount
https://bugs.launchpad.net/ubuntu/+source/udisks2/+bug/1398859/+attachment/4291284/+files/udevd.trace
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https://bugs.launchpad.net/bugs/1398859
Title:
unmounting NTFS causes mount.ntfs process to get stuck in eternal
kernel deep sleep
Status in udisks2 package in Ubuntu:
In Progress
Bug description:
Since Mid-November the udisks2 test (https://jenkins.qa.ubuntu.com/job
/vivid-adt-udisks2/? shows it happened between Nov 13 and 19) exhibits
a regression with NTFS: Unmounting causes the ntfs-3g process to go
into kernel deep sleep and umount hangs forever.
This can be reproduced with
sudo apt install ntfs-3g
sudo modprobe scsi_debug
# check dmesg which drive this created; e. g. /dev/sda
sudo mkntfs -F /dev/sda
sudo mount /dev/sda /mnt
Now you have a process which is happy:
root 12821 0.0 0.0 15272 1948 ?Ss 15:49 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
You can work with /mnt, edit files, etc. But now unmount:
sudo umount /mnt
This never returns, and the process goes into uninterruptible kernel
sleep (D):
root 12928 0.0 0.0 15272 1948 ?Ds 15:55 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
The strace for the umount until the hang is
ubuntu@autopkgtest:~$ sudo strace -vvtts1024 -p 12928
Process 12928 attached
15:56:17.938299 read(4,
0\0\0\0\2\0\0\0\2\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0,
135168) = 48
15:56:22.338931 read(4,
(\0\0\0\0\0\0\3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0,
135168) = 40
15:56:22.339637 sendto(5, 29Dec 3 15:56:22 ntfs-3g[12928]: Unmounting
/dev/sda ()\n, 59, MSG_NOSIGNAL, NULL, 0) = 59
15:56:22.340509 fsync(3)= 0
15:56:22.341188 fcntl(3, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=0,
len=0}) = 0
15:56:22.341759 close(3
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ntfs-3g 1:2013.1.13AR.1-2ubuntu3
ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
Uname: Linux 3.16.0-25-generic x86_64
ApportVersion: 2.15-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Dec 3 15:48:12 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-11-20 (13 days ago)
InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20141119)
SourcePackage: ntfs-3g
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
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[Desktop-packages] [Bug 1398859] Re: unmounting NTFS causes mount.ntfs process to get stuck in eternal kernel deep sleep
** Changed in: udisks2 (Ubuntu)
Status: In Progress = Fix Committed
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Packages, which is subscribed to udisks2 in Ubuntu.
https://bugs.launchpad.net/bugs/1398859
Title:
unmounting NTFS causes mount.ntfs process to get stuck in eternal
kernel deep sleep
Status in udisks2 package in Ubuntu:
Fix Committed
Bug description:
Since Mid-November the udisks2 test (https://jenkins.qa.ubuntu.com/job
/vivid-adt-udisks2/? shows it happened between Nov 13 and 19) exhibits
a regression with NTFS: Unmounting causes the ntfs-3g process to go
into kernel deep sleep and umount hangs forever.
This can be reproduced with
sudo apt install ntfs-3g
sudo modprobe scsi_debug
# check dmesg which drive this created; e. g. /dev/sda
sudo mkntfs -F /dev/sda
sudo mount /dev/sda /mnt
Now you have a process which is happy:
root 12821 0.0 0.0 15272 1948 ?Ss 15:49 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
You can work with /mnt, edit files, etc. But now unmount:
sudo umount /mnt
This never returns, and the process goes into uninterruptible kernel
sleep (D):
root 12928 0.0 0.0 15272 1948 ?Ds 15:55 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
The strace for the umount until the hang is
ubuntu@autopkgtest:~$ sudo strace -vvtts1024 -p 12928
Process 12928 attached
15:56:17.938299 read(4,
0\0\0\0\2\0\0\0\2\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0,
135168) = 48
15:56:22.338931 read(4,
(\0\0\0\0\0\0\3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0,
135168) = 40
15:56:22.339637 sendto(5, 29Dec 3 15:56:22 ntfs-3g[12928]: Unmounting
/dev/sda ()\n, 59, MSG_NOSIGNAL, NULL, 0) = 59
15:56:22.340509 fsync(3)= 0
15:56:22.341188 fcntl(3, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=0,
len=0}) = 0
15:56:22.341759 close(3
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ntfs-3g 1:2013.1.13AR.1-2ubuntu3
ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
Uname: Linux 3.16.0-25-generic x86_64
ApportVersion: 2.15-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Dec 3 15:48:12 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-11-20 (13 days ago)
InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20141119)
SourcePackage: ntfs-3g
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
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[Desktop-packages] [Bug 1398859] Re: unmounting NTFS causes mount.ntfs process to get stuck in eternal kernel deep sleep
** Changed in: udisks2 (Ubuntu)
Status: Fix Committed = In Progress
--
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Packages, which is subscribed to udisks2 in Ubuntu.
https://bugs.launchpad.net/bugs/1398859
Title:
unmounting NTFS causes mount.ntfs process to get stuck in eternal
kernel deep sleep
Status in udisks2 package in Ubuntu:
In Progress
Bug description:
Since Mid-November the udisks2 test (https://jenkins.qa.ubuntu.com/job
/vivid-adt-udisks2/? shows it happened between Nov 13 and 19) exhibits
a regression with NTFS: Unmounting causes the ntfs-3g process to go
into kernel deep sleep and umount hangs forever.
This can be reproduced with
sudo apt install ntfs-3g
sudo modprobe scsi_debug
# check dmesg which drive this created; e. g. /dev/sda
sudo mkntfs -F /dev/sda
sudo mount /dev/sda /mnt
Now you have a process which is happy:
root 12821 0.0 0.0 15272 1948 ?Ss 15:49 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
You can work with /mnt, edit files, etc. But now unmount:
sudo umount /mnt
This never returns, and the process goes into uninterruptible kernel
sleep (D):
root 12928 0.0 0.0 15272 1948 ?Ds 15:55 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
The strace for the umount until the hang is
ubuntu@autopkgtest:~$ sudo strace -vvtts1024 -p 12928
Process 12928 attached
15:56:17.938299 read(4,
0\0\0\0\2\0\0\0\2\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0,
135168) = 48
15:56:22.338931 read(4,
(\0\0\0\0\0\0\3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0,
135168) = 40
15:56:22.339637 sendto(5, 29Dec 3 15:56:22 ntfs-3g[12928]: Unmounting
/dev/sda ()\n, 59, MSG_NOSIGNAL, NULL, 0) = 59
15:56:22.340509 fsync(3)= 0
15:56:22.341188 fcntl(3, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=0,
len=0}) = 0
15:56:22.341759 close(3
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ntfs-3g 1:2013.1.13AR.1-2ubuntu3
ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
Uname: Linux 3.16.0-25-generic x86_64
ApportVersion: 2.15-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Dec 3 15:48:12 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-11-20 (13 days ago)
InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20141119)
SourcePackage: ntfs-3g
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/udisks2/+bug/1398859/+subscriptions
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[Desktop-packages] [Bug 1398859] Re: unmounting NTFS causes mount.ntfs process to get stuck in eternal kernel deep sleep
A stack trace of the blocked process might help, maybe magic-sysrq-w
when it happens?
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https://bugs.launchpad.net/bugs/1398859
Title:
unmounting NTFS causes mount.ntfs process to get stuck in eternal
kernel deep sleep
Status in udisks2 package in Ubuntu:
Fix Committed
Bug description:
Since Mid-November the udisks2 test (https://jenkins.qa.ubuntu.com/job
/vivid-adt-udisks2/? shows it happened between Nov 13 and 19) exhibits
a regression with NTFS: Unmounting causes the ntfs-3g process to go
into kernel deep sleep and umount hangs forever.
This can be reproduced with
sudo apt install ntfs-3g
sudo modprobe scsi_debug
# check dmesg which drive this created; e. g. /dev/sda
sudo mkntfs -F /dev/sda
sudo mount /dev/sda /mnt
Now you have a process which is happy:
root 12821 0.0 0.0 15272 1948 ?Ss 15:49 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
You can work with /mnt, edit files, etc. But now unmount:
sudo umount /mnt
This never returns, and the process goes into uninterruptible kernel
sleep (D):
root 12928 0.0 0.0 15272 1948 ?Ds 15:55 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
The strace for the umount until the hang is
ubuntu@autopkgtest:~$ sudo strace -vvtts1024 -p 12928
Process 12928 attached
15:56:17.938299 read(4,
0\0\0\0\2\0\0\0\2\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0,
135168) = 48
15:56:22.338931 read(4,
(\0\0\0\0\0\0\3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0,
135168) = 40
15:56:22.339637 sendto(5, 29Dec 3 15:56:22 ntfs-3g[12928]: Unmounting
/dev/sda ()\n, 59, MSG_NOSIGNAL, NULL, 0) = 59
15:56:22.340509 fsync(3)= 0
15:56:22.341188 fcntl(3, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=0,
len=0}) = 0
15:56:22.341759 close(3
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ntfs-3g 1:2013.1.13AR.1-2ubuntu3
ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
Uname: Linux 3.16.0-25-generic x86_64
ApportVersion: 2.15-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Dec 3 15:48:12 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-11-20 (13 days ago)
InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20141119)
SourcePackage: ntfs-3g
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/udisks2/+bug/1398859/+subscriptions
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[Desktop-packages] [Bug 1398859] Re: unmounting NTFS causes mount.ntfs process to get stuck in eternal kernel deep sleep
I'll fix this in udisks2's test suite instead.
** Package changed: systemd (Ubuntu) = udisks2 (Ubuntu)
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https://bugs.launchpad.net/bugs/1398859
Title:
unmounting NTFS causes mount.ntfs process to get stuck in eternal
kernel deep sleep
Status in udisks2 package in Ubuntu:
In Progress
Bug description:
Since Mid-November the udisks2 test (https://jenkins.qa.ubuntu.com/job
/vivid-adt-udisks2/? shows it happened between Nov 13 and 19) exhibits
a regression with NTFS: Unmounting causes the ntfs-3g process to go
into kernel deep sleep and umount hangs forever.
This can be reproduced with
sudo apt install ntfs-3g
sudo modprobe scsi_debug
# check dmesg which drive this created; e. g. /dev/sda
sudo mkntfs -F /dev/sda
sudo mount /dev/sda /mnt
Now you have a process which is happy:
root 12821 0.0 0.0 15272 1948 ?Ss 15:49 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
You can work with /mnt, edit files, etc. But now unmount:
sudo umount /mnt
This never returns, and the process goes into uninterruptible kernel
sleep (D):
root 12928 0.0 0.0 15272 1948 ?Ds 15:55 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
The strace for the umount until the hang is
ubuntu@autopkgtest:~$ sudo strace -vvtts1024 -p 12928
Process 12928 attached
15:56:17.938299 read(4,
0\0\0\0\2\0\0\0\2\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0,
135168) = 48
15:56:22.338931 read(4,
(\0\0\0\0\0\0\3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0,
135168) = 40
15:56:22.339637 sendto(5, 29Dec 3 15:56:22 ntfs-3g[12928]: Unmounting
/dev/sda ()\n, 59, MSG_NOSIGNAL, NULL, 0) = 59
15:56:22.340509 fsync(3)= 0
15:56:22.341188 fcntl(3, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=0,
len=0}) = 0
15:56:22.341759 close(3
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ntfs-3g 1:2013.1.13AR.1-2ubuntu3
ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
Uname: Linux 3.16.0-25-generic x86_64
ApportVersion: 2.15-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Dec 3 15:48:12 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-11-20 (13 days ago)
InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20141119)
SourcePackage: ntfs-3g
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/udisks2/+bug/1398859/+subscriptions
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[Desktop-packages] [Bug 1398859] Re: unmounting NTFS causes mount.ntfs process to get stuck in eternal kernel deep sleep
** Changed in: udisks2 (Ubuntu)
Status: In Progress = Fix Committed
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to udisks2 in Ubuntu.
https://bugs.launchpad.net/bugs/1398859
Title:
unmounting NTFS causes mount.ntfs process to get stuck in eternal
kernel deep sleep
Status in udisks2 package in Ubuntu:
Fix Committed
Bug description:
Since Mid-November the udisks2 test (https://jenkins.qa.ubuntu.com/job
/vivid-adt-udisks2/? shows it happened between Nov 13 and 19) exhibits
a regression with NTFS: Unmounting causes the ntfs-3g process to go
into kernel deep sleep and umount hangs forever.
This can be reproduced with
sudo apt install ntfs-3g
sudo modprobe scsi_debug
# check dmesg which drive this created; e. g. /dev/sda
sudo mkntfs -F /dev/sda
sudo mount /dev/sda /mnt
Now you have a process which is happy:
root 12821 0.0 0.0 15272 1948 ?Ss 15:49 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
You can work with /mnt, edit files, etc. But now unmount:
sudo umount /mnt
This never returns, and the process goes into uninterruptible kernel
sleep (D):
root 12928 0.0 0.0 15272 1948 ?Ds 15:55 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
The strace for the umount until the hang is
ubuntu@autopkgtest:~$ sudo strace -vvtts1024 -p 12928
Process 12928 attached
15:56:17.938299 read(4,
0\0\0\0\2\0\0\0\2\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0,
135168) = 48
15:56:22.338931 read(4,
(\0\0\0\0\0\0\3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0,
135168) = 40
15:56:22.339637 sendto(5, 29Dec 3 15:56:22 ntfs-3g[12928]: Unmounting
/dev/sda ()\n, 59, MSG_NOSIGNAL, NULL, 0) = 59
15:56:22.340509 fsync(3)= 0
15:56:22.341188 fcntl(3, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=0,
len=0}) = 0
15:56:22.341759 close(3
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ntfs-3g 1:2013.1.13AR.1-2ubuntu3
ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
Uname: Linux 3.16.0-25-generic x86_64
ApportVersion: 2.15-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Dec 3 15:48:12 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-11-20 (13 days ago)
InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20141119)
SourcePackage: ntfs-3g
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/udisks2/+bug/1398859/+subscriptions
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[Desktop-packages] [Bug 1398859] Re: unmounting NTFS causes mount.ntfs process to get stuck in eternal kernel deep sleep
Isn't there still an underlying kernel bug that should be fixed here?
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to udisks2 in Ubuntu.
https://bugs.launchpad.net/bugs/1398859
Title:
unmounting NTFS causes mount.ntfs process to get stuck in eternal
kernel deep sleep
Status in udisks2 package in Ubuntu:
Fix Committed
Bug description:
Since Mid-November the udisks2 test (https://jenkins.qa.ubuntu.com/job
/vivid-adt-udisks2/? shows it happened between Nov 13 and 19) exhibits
a regression with NTFS: Unmounting causes the ntfs-3g process to go
into kernel deep sleep and umount hangs forever.
This can be reproduced with
sudo apt install ntfs-3g
sudo modprobe scsi_debug
# check dmesg which drive this created; e. g. /dev/sda
sudo mkntfs -F /dev/sda
sudo mount /dev/sda /mnt
Now you have a process which is happy:
root 12821 0.0 0.0 15272 1948 ?Ss 15:49 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
You can work with /mnt, edit files, etc. But now unmount:
sudo umount /mnt
This never returns, and the process goes into uninterruptible kernel
sleep (D):
root 12928 0.0 0.0 15272 1948 ?Ds 15:55 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
The strace for the umount until the hang is
ubuntu@autopkgtest:~$ sudo strace -vvtts1024 -p 12928
Process 12928 attached
15:56:17.938299 read(4,
0\0\0\0\2\0\0\0\2\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0,
135168) = 48
15:56:22.338931 read(4,
(\0\0\0\0\0\0\3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0,
135168) = 40
15:56:22.339637 sendto(5, 29Dec 3 15:56:22 ntfs-3g[12928]: Unmounting
/dev/sda ()\n, 59, MSG_NOSIGNAL, NULL, 0) = 59
15:56:22.340509 fsync(3)= 0
15:56:22.341188 fcntl(3, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=0,
len=0}) = 0
15:56:22.341759 close(3
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ntfs-3g 1:2013.1.13AR.1-2ubuntu3
ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
Uname: Linux 3.16.0-25-generic x86_64
ApportVersion: 2.15-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Dec 3 15:48:12 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-11-20 (13 days ago)
InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20141119)
SourcePackage: ntfs-3g
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/udisks2/+bug/1398859/+subscriptions
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[Desktop-packages] [Bug 1398859] Re: unmounting NTFS causes mount.ntfs process to get stuck in eternal kernel deep sleep
Quite possibly,but at this point I don't quite understand this any more,
at least not yet with the level of debugging that I did so far. :-(
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to udisks2 in Ubuntu.
https://bugs.launchpad.net/bugs/1398859
Title:
unmounting NTFS causes mount.ntfs process to get stuck in eternal
kernel deep sleep
Status in udisks2 package in Ubuntu:
Fix Committed
Bug description:
Since Mid-November the udisks2 test (https://jenkins.qa.ubuntu.com/job
/vivid-adt-udisks2/? shows it happened between Nov 13 and 19) exhibits
a regression with NTFS: Unmounting causes the ntfs-3g process to go
into kernel deep sleep and umount hangs forever.
This can be reproduced with
sudo apt install ntfs-3g
sudo modprobe scsi_debug
# check dmesg which drive this created; e. g. /dev/sda
sudo mkntfs -F /dev/sda
sudo mount /dev/sda /mnt
Now you have a process which is happy:
root 12821 0.0 0.0 15272 1948 ?Ss 15:49 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
You can work with /mnt, edit files, etc. But now unmount:
sudo umount /mnt
This never returns, and the process goes into uninterruptible kernel
sleep (D):
root 12928 0.0 0.0 15272 1948 ?Ds 15:55 0:00
/sbin/mount.ntfs /dev/sda /mnt -o rw
The strace for the umount until the hang is
ubuntu@autopkgtest:~$ sudo strace -vvtts1024 -p 12928
Process 12928 attached
15:56:17.938299 read(4,
0\0\0\0\2\0\0\0\2\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0,
135168) = 48
15:56:22.338931 read(4,
(\0\0\0\0\0\0\3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0,
135168) = 40
15:56:22.339637 sendto(5, 29Dec 3 15:56:22 ntfs-3g[12928]: Unmounting
/dev/sda ()\n, 59, MSG_NOSIGNAL, NULL, 0) = 59
15:56:22.340509 fsync(3)= 0
15:56:22.341188 fcntl(3, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=0,
len=0}) = 0
15:56:22.341759 close(3
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ntfs-3g 1:2013.1.13AR.1-2ubuntu3
ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
Uname: Linux 3.16.0-25-generic x86_64
ApportVersion: 2.15-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Dec 3 15:48:12 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-11-20 (13 days ago)
InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20141119)
SourcePackage: ntfs-3g
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/udisks2/+bug/1398859/+subscriptions
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