[Kernel-packages] [Bug 1118447] Re: Race condition with network and NFS mounts causes boottime hang
Hi Christian, thanks for the suggestion, but we did not use names for NFS mounts but IPs (see fstab in #10). -- 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/1118447 Title: Race condition with network and NFS mounts causes boottime hang Status in linux package in Ubuntu: Confirmed Status in nfs-utils package in Ubuntu: Incomplete Bug description: I seem to experience a race condition during boot of my ubuntu 12.04 server: In approx. one of seven boots, the server hangs during bootup. This is what I see on the screen: After the line * Starting configure network device there is a short delay of about 1 second, then messages continue. I see * Starting Mount network filesystems [ OK ] * Starting set sysctls from /etc/sysctl.conf [ OK ] * Starting configure network device [ OK ] * Stopping Mount network filesystems [ OK ] * Stopping set sysctls from /etc/sysctl.conf [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] The last messages repeats several times, and then the boot process hangs. In 6/7 of cases, I wait for a minute, and after that bootup continues. But in approx 1/7 cases, the system hangs at this point forever. The machine does not respond to CTRL-ALT-DEL, I have to reboot it using SysRq-Keys. WORKAROUND: Setting the NFS entries in fstab to "noauto" completely removes the problem: There is no timeout during boot, and no lockup any more. The machine boote smoothly with the NFS-shares unmounted. After the machine is up, we can manually mount the NFS-shares without a problem. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-37-generic 3.2.0-37.58 ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 Uname: Linux 3.2.0-37-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:252: keine Soundkarten gefunden ... ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: arecord: device_list:252: keine Soundkarten gefunden ... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. CurrentDmesg: [ 85.200104] lxcbr0: no IPv6 routers present Date: Thu Feb 7 15:50:40 2013 HibernationDevice: RESUME=UUID=6c172536-57cc-4deb-867a-0718d572f23e IwConfig: lono wireless extensions. eth0 no wireless extensions. lxcbr0no wireless extensions. MachineType: To be filled by O.E.M. To be filled by O.E.M. MarkForUpload: True ProcEnviron: LANGUAGE=de:en TERM=xterm PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=/dev/mapper/lvmvg-root ro debug splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Es läuft kein PulseAudio-Dienst oder nicht als Sessiondienst. RelatedPackageVersions: linux-restricted-modules-3.2.0-37-generic N/A linux-backports-modules-3.2.0-37-generic N/A linux-firmware1.79.1 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to precise on 2012-04-28 (285 days ago) dmi.bios.date: 07/04/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0302 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: M5A97 EVO R2.0 dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx 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.:bvr0302:bd07/04/2012:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnM5A97EVOR2.0:rvrRev1.xx: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/1118447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help :
[Kernel-packages] [Bug 1118447] Re: Race condition with network and NFS mounts causes boottime hang
Maybe it doesn't help much here. It just *could* be that it doesn't have to do anything with the network being up, but with DNS resolution? I have had the problem on one computer (don't know why), and spotted the following line in /var/log/syslog: mount[859]: mount.nfs: Failed to resolve server kerberos: Temporary failure in name resolution So I tested a bit, and found that if I put "kerberos" with the right IP into /etc/hosts, it works perfectly. So maybe it is the problem that the name resolution at the boot time when NFS shares should be mounted, does still not work. -- 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/1118447 Title: Race condition with network and NFS mounts causes boottime hang Status in linux package in Ubuntu: Confirmed Status in nfs-utils package in Ubuntu: Incomplete Bug description: I seem to experience a race condition during boot of my ubuntu 12.04 server: In approx. one of seven boots, the server hangs during bootup. This is what I see on the screen: After the line * Starting configure network device there is a short delay of about 1 second, then messages continue. I see * Starting Mount network filesystems [ OK ] * Starting set sysctls from /etc/sysctl.conf [ OK ] * Starting configure network device [ OK ] * Stopping Mount network filesystems [ OK ] * Stopping set sysctls from /etc/sysctl.conf [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] The last messages repeats several times, and then the boot process hangs. In 6/7 of cases, I wait for a minute, and after that bootup continues. But in approx 1/7 cases, the system hangs at this point forever. The machine does not respond to CTRL-ALT-DEL, I have to reboot it using SysRq-Keys. WORKAROUND: Setting the NFS entries in fstab to "noauto" completely removes the problem: There is no timeout during boot, and no lockup any more. The machine boote smoothly with the NFS-shares unmounted. After the machine is up, we can manually mount the NFS-shares without a problem. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-37-generic 3.2.0-37.58 ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 Uname: Linux 3.2.0-37-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:252: keine Soundkarten gefunden ... ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: arecord: device_list:252: keine Soundkarten gefunden ... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. CurrentDmesg: [ 85.200104] lxcbr0: no IPv6 routers present Date: Thu Feb 7 15:50:40 2013 HibernationDevice: RESUME=UUID=6c172536-57cc-4deb-867a-0718d572f23e IwConfig: lono wireless extensions. eth0 no wireless extensions. lxcbr0no wireless extensions. MachineType: To be filled by O.E.M. To be filled by O.E.M. MarkForUpload: True ProcEnviron: LANGUAGE=de:en TERM=xterm PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=/dev/mapper/lvmvg-root ro debug splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Es läuft kein PulseAudio-Dienst oder nicht als Sessiondienst. RelatedPackageVersions: linux-restricted-modules-3.2.0-37-generic N/A linux-backports-modules-3.2.0-37-generic N/A linux-firmware1.79.1 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to precise on 2012-04-28 (285 days ago) dmi.bios.date: 07/04/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0302 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: M5A97 EVO R2.0 dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx 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:
[Kernel-packages] [Bug 1118447] Re: Race condition with network and NFS mounts causes boottime hang
Hey, here in our institute we use VMware ESXi to deploy Ubuntu 14.04 machines running: Linux hostname 3.13.0-98-generic #145-Ubuntu SMP Sat Oct 8 20:13:07 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux And we experiencing the same bug with the NFS race condition. Is there already a bugfix after 2 years? Or do we still need to mount the NFS after bootup manually? Im happy to share some test results or logs, if 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/1118447 Title: Race condition with network and NFS mounts causes boottime hang Status in linux package in Ubuntu: Confirmed Status in nfs-utils package in Ubuntu: Incomplete Bug description: I seem to experience a race condition during boot of my ubuntu 12.04 server: In approx. one of seven boots, the server hangs during bootup. This is what I see on the screen: After the line * Starting configure network device there is a short delay of about 1 second, then messages continue. I see * Starting Mount network filesystems [ OK ] * Starting set sysctls from /etc/sysctl.conf [ OK ] * Starting configure network device [ OK ] * Stopping Mount network filesystems [ OK ] * Stopping set sysctls from /etc/sysctl.conf [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] The last messages repeats several times, and then the boot process hangs. In 6/7 of cases, I wait for a minute, and after that bootup continues. But in approx 1/7 cases, the system hangs at this point forever. The machine does not respond to CTRL-ALT-DEL, I have to reboot it using SysRq-Keys. WORKAROUND: Setting the NFS entries in fstab to "noauto" completely removes the problem: There is no timeout during boot, and no lockup any more. The machine boote smoothly with the NFS-shares unmounted. After the machine is up, we can manually mount the NFS-shares without a problem. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-37-generic 3.2.0-37.58 ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 Uname: Linux 3.2.0-37-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:252: keine Soundkarten gefunden ... ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: arecord: device_list:252: keine Soundkarten gefunden ... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. CurrentDmesg: [ 85.200104] lxcbr0: no IPv6 routers present Date: Thu Feb 7 15:50:40 2013 HibernationDevice: RESUME=UUID=6c172536-57cc-4deb-867a-0718d572f23e IwConfig: lono wireless extensions. eth0 no wireless extensions. lxcbr0no wireless extensions. MachineType: To be filled by O.E.M. To be filled by O.E.M. MarkForUpload: True ProcEnviron: LANGUAGE=de:en TERM=xterm PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=/dev/mapper/lvmvg-root ro debug splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Es läuft kein PulseAudio-Dienst oder nicht als Sessiondienst. RelatedPackageVersions: linux-restricted-modules-3.2.0-37-generic N/A linux-backports-modules-3.2.0-37-generic N/A linux-firmware1.79.1 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to precise on 2012-04-28 (285 days ago) dmi.bios.date: 07/04/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0302 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: M5A97 EVO R2.0 dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx 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.:bvr0302:bd07/04/2012:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnM5A97EVOR2.0:rvrRev1.xx: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
[Kernel-packages] [Bug 1118447] Re: Race condition with network and NFS mounts causes boottime hang
I'm right now approx 300 kms away from my server and I notice, that the machine fails to boot. Symptoms are: Open ports on the server: Not shown: 997 closed ports PORTSTATE SERVICE 111/tcp open rpcbind 139/tcp open netbios-ssn 445/tcp open microsoft-ds MAC Address: 50:E5:49:92:FB:3F (Giga-byte Technology Co.) samba is up - and I can connect to the shares. But trying to look up a directory on a NFS mounted share on the server reveals nothing which means that this machine is currently waiting for an NFS mount to be finished. smb: \ dir . D0 Tue Jun 19 14:27:16 2012 .. D0 Sat Jul 12 22:06:24 2014 42459 blocks of size 16777216. 4075 blocks available smb: \ The NFS demon on the hanging machine is currently not running properly showmount -e 192.168.186.199 clnt_create: RPC: Program not registered and the NAS where the server gets its beforementioned share is currently up and running fine: showmount -e 192.168.186.240 Export list for 192.168.186.240: /Qweb /Qusb /Qrecordings /Qmultimedia /Qdownload /Public As the boot stage hangs in such an early stage there is no possibility for me to log on using ssh and I have to get remote hands (on a Sunday) to get things running again. When the remote hands are available I'll post some additional information about this issue. -- 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/1118447 Title: Race condition with network and NFS mounts causes boottime hang Status in “linux” package in Ubuntu: Confirmed Status in “nfs-utils” package in Ubuntu: Incomplete Bug description: I seem to experience a race condition during boot of my ubuntu 12.04 server: In approx. one of seven boots, the server hangs during bootup. This is what I see on the screen: After the line * Starting configure network device there is a short delay of about 1 second, then messages continue. I see * Starting Mount network filesystems [ OK ] * Starting set sysctls from /etc/sysctl.conf [ OK ] * Starting configure network device [ OK ] * Stopping Mount network filesystems [ OK ] * Stopping set sysctls from /etc/sysctl.conf [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] The last messages repeats several times, and then the boot process hangs. In 6/7 of cases, I wait for a minute, and after that bootup continues. But in approx 1/7 cases, the system hangs at this point forever. The machine does not respond to CTRL-ALT-DEL, I have to reboot it using SysRq-Keys. WORKAROUND: Setting the NFS entries in fstab to noauto completely removes the problem: There is no timeout during boot, and no lockup any more. The machine boote smoothly with the NFS-shares unmounted. After the machine is up, we can manually mount the NFS-shares without a problem. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-37-generic 3.2.0-37.58 ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 Uname: Linux 3.2.0-37-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:252: keine Soundkarten gefunden ... ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: arecord: device_list:252: keine Soundkarten gefunden ... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. CurrentDmesg: [ 85.200104] lxcbr0: no IPv6 routers present Date: Thu Feb 7 15:50:40 2013 HibernationDevice: RESUME=UUID=6c172536-57cc-4deb-867a-0718d572f23e IwConfig: lono wireless extensions. eth0 no wireless extensions. lxcbr0no wireless extensions. MachineType: To be filled by O.E.M. To be filled by O.E.M. MarkForUpload: True ProcEnviron: LANGUAGE=de:en TERM=xterm PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=/dev/mapper/lvmvg-root ro debug splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Es läuft kein
[Kernel-packages] [Bug 1118447] Re: Race condition with network and NFS mounts causes boottime hang
This bug very clearly has nothing at all to do with the BIOS. Christopher, it is inappropriate to ask bug submitters to test with a new BIOS for bugs like this - the BIOS is entirely unrelated to the network filesystem layer, and if upgrading the BIOS did have any effect, it would be *irrelevant* to the bug at hand. ** Tags removed: bios-outdated-1903 -- 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/1118447 Title: Race condition with network and NFS mounts causes boottime hang Status in “linux” package in Ubuntu: Confirmed Status in “nfs-utils” package in Ubuntu: Incomplete Bug description: I seem to experience a race condition during boot of my ubuntu 12.04 server: In approx. one of seven boots, the server hangs during bootup. This is what I see on the screen: After the line * Starting configure network device there is a short delay of about 1 second, then messages continue. I see * Starting Mount network filesystems [ OK ] * Starting set sysctls from /etc/sysctl.conf [ OK ] * Starting configure network device [ OK ] * Stopping Mount network filesystems [ OK ] * Stopping set sysctls from /etc/sysctl.conf [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] The last messages repeats several times, and then the boot process hangs. In 6/7 of cases, I wait for a minute, and after that bootup continues. But in approx 1/7 cases, the system hangs at this point forever. The machine does not respond to CTRL-ALT-DEL, I have to reboot it using SysRq-Keys. WORKAROUND: Setting the NFS entries in fstab to noauto completely removes the problem: There is no timeout during boot, and no lockup any more. The machine boote smoothly with the NFS-shares unmounted. After the machine is up, we can manually mount the NFS-shares without a problem. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-37-generic 3.2.0-37.58 ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 Uname: Linux 3.2.0-37-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:252: keine Soundkarten gefunden ... ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: arecord: device_list:252: keine Soundkarten gefunden ... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. CurrentDmesg: [ 85.200104] lxcbr0: no IPv6 routers present Date: Thu Feb 7 15:50:40 2013 HibernationDevice: RESUME=UUID=6c172536-57cc-4deb-867a-0718d572f23e IwConfig: lono wireless extensions. eth0 no wireless extensions. lxcbr0no wireless extensions. MachineType: To be filled by O.E.M. To be filled by O.E.M. MarkForUpload: True ProcEnviron: LANGUAGE=de:en TERM=xterm PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=/dev/mapper/lvmvg-root ro debug splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Es läuft kein PulseAudio-Dienst oder nicht als Sessiondienst. RelatedPackageVersions: linux-restricted-modules-3.2.0-37-generic N/A linux-backports-modules-3.2.0-37-generic N/A linux-firmware1.79.1 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to precise on 2012-04-28 (285 days ago) dmi.bios.date: 07/04/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0302 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: M5A97 EVO R2.0 dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx 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.:bvr0302:bd07/04/2012:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnM5A97EVOR2.0:rvrRev1.xx: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:
[Kernel-packages] [Bug 1118447] Re: Race condition with network and NFS mounts causes boottime hang
Steve Langasek, thank you for your comment. While it is always appreciated when a developer steps in and advises to a bug report, a portion of your comments don't make sense (which I'm happy to take off report, but they are relevant here). Regarding your comments: This bug very clearly has nothing at all to do with the BIOS. This wouldn't be clear to everyone, and just saying so doesn't clear this up for folks. Christopher, it is inappropriate to ask bug submitters to test with a new BIOS for bugs like this - the BIOS is entirely unrelated to the network filesystem layer,... Ok, but the BIOS does have a hand in a well functioning system, of which the network filesystem layer depends on. No? ...if upgrading the BIOS did have any effect, it would be *irrelevant* to the bug at hand. Wouldn't the updated BIOS having a positive affect, be the exact reason why one would want to update, in order to eliminating collateral damage from a buggy BIOS? Thank you again for your comment, and understanding. -- 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/1118447 Title: Race condition with network and NFS mounts causes boottime hang Status in “linux” package in Ubuntu: Confirmed Status in “nfs-utils” package in Ubuntu: Incomplete Bug description: I seem to experience a race condition during boot of my ubuntu 12.04 server: In approx. one of seven boots, the server hangs during bootup. This is what I see on the screen: After the line * Starting configure network device there is a short delay of about 1 second, then messages continue. I see * Starting Mount network filesystems [ OK ] * Starting set sysctls from /etc/sysctl.conf [ OK ] * Starting configure network device [ OK ] * Stopping Mount network filesystems [ OK ] * Stopping set sysctls from /etc/sysctl.conf [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] The last messages repeats several times, and then the boot process hangs. In 6/7 of cases, I wait for a minute, and after that bootup continues. But in approx 1/7 cases, the system hangs at this point forever. The machine does not respond to CTRL-ALT-DEL, I have to reboot it using SysRq-Keys. WORKAROUND: Setting the NFS entries in fstab to noauto completely removes the problem: There is no timeout during boot, and no lockup any more. The machine boote smoothly with the NFS-shares unmounted. After the machine is up, we can manually mount the NFS-shares without a problem. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-37-generic 3.2.0-37.58 ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 Uname: Linux 3.2.0-37-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:252: keine Soundkarten gefunden ... ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: arecord: device_list:252: keine Soundkarten gefunden ... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. CurrentDmesg: [ 85.200104] lxcbr0: no IPv6 routers present Date: Thu Feb 7 15:50:40 2013 HibernationDevice: RESUME=UUID=6c172536-57cc-4deb-867a-0718d572f23e IwConfig: lono wireless extensions. eth0 no wireless extensions. lxcbr0no wireless extensions. MachineType: To be filled by O.E.M. To be filled by O.E.M. MarkForUpload: True ProcEnviron: LANGUAGE=de:en TERM=xterm PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=/dev/mapper/lvmvg-root ro debug splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Es läuft kein PulseAudio-Dienst oder nicht als Sessiondienst. RelatedPackageVersions: linux-restricted-modules-3.2.0-37-generic N/A linux-backports-modules-3.2.0-37-generic N/A linux-firmware1.79.1 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to precise on 2012-04-28 (285 days ago) dmi.bios.date: 07/04/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0302 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: M5A97 EVO R2.0
[Kernel-packages] [Bug 1118447] Re: Race condition with network and NFS mounts causes boottime hang
** Tags added: bios-outdated-1903 -- 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/1118447 Title: Race condition with network and NFS mounts causes boottime hang Status in “linux” package in Ubuntu: Confirmed Status in “nfs-utils” package in Ubuntu: Incomplete Bug description: I seem to experience a race condition during boot of my ubuntu 12.04 server: In approx. one of seven boots, the server hangs during bootup. This is what I see on the screen: After the line * Starting configure network device there is a short delay of about 1 second, then messages continue. I see * Starting Mount network filesystems [ OK ] * Starting set sysctls from /etc/sysctl.conf [ OK ] * Starting configure network device [ OK ] * Stopping Mount network filesystems [ OK ] * Stopping set sysctls from /etc/sysctl.conf [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] The last messages repeats several times, and then the boot process hangs. In 6/7 of cases, I wait for a minute, and after that bootup continues. But in approx 1/7 cases, the system hangs at this point forever. The machine does not respond to CTRL-ALT-DEL, I have to reboot it using SysRq-Keys. WORKAROUND: Setting the NFS entries in fstab to noauto completely removes the problem: There is no timeout during boot, and no lockup any more. The machine boote smoothly with the NFS-shares unmounted. After the machine is up, we can manually mount the NFS-shares without a problem. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-37-generic 3.2.0-37.58 ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 Uname: Linux 3.2.0-37-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:252: keine Soundkarten gefunden ... ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: arecord: device_list:252: keine Soundkarten gefunden ... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. CurrentDmesg: [ 85.200104] lxcbr0: no IPv6 routers present Date: Thu Feb 7 15:50:40 2013 HibernationDevice: RESUME=UUID=6c172536-57cc-4deb-867a-0718d572f23e IwConfig: lono wireless extensions. eth0 no wireless extensions. lxcbr0no wireless extensions. MachineType: To be filled by O.E.M. To be filled by O.E.M. MarkForUpload: True ProcEnviron: LANGUAGE=de:en TERM=xterm PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=/dev/mapper/lvmvg-root ro debug splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Es läuft kein PulseAudio-Dienst oder nicht als Sessiondienst. RelatedPackageVersions: linux-restricted-modules-3.2.0-37-generic N/A linux-backports-modules-3.2.0-37-generic N/A linux-firmware1.79.1 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to precise on 2012-04-28 (285 days ago) dmi.bios.date: 07/04/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0302 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: M5A97 EVO R2.0 dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx 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.:bvr0302:bd07/04/2012:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnM5A97EVOR2.0:rvrRev1.xx: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/1118447/+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
Re: [Kernel-packages] [Bug 1118447] Re: Race condition with network and NFS mounts causes boottime hang
On Sat, Jan 04, 2014 at 07:28:12AM -, Andrew Radke wrote: In the past we have also been asked to update our kernels and at no stage has this improved the situation. Is there anything to indicate that it is likely to help on this occasion or that it is a kernel bug and not a problem somewhere in the system startup scripts. It seems quite possible that it is a bug where upstart believes that the network is up when it's not. If this is the case, it's necessarily a bug in either the kernel or the networking layer, not in upstart. Upstart itself (mountall) only tries to mount the network filesystems when it's received a notification that a network interface is up. It may not be the interface *needed* for the mount, but in this case it's expected to fail immediately and upstart will wait for the next network interface before retrying. If this is a kernel bug, it's an obscure one, and I don't see any point in having you retest with newer upstream kernels. -- 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/1118447 Title: Race condition with network and NFS mounts causes boottime hang Status in “linux” package in Ubuntu: Confirmed Status in “nfs-utils” package in Ubuntu: Incomplete Bug description: I seem to experience a race condition during boot of my ubuntu 12.04 server: In approx. one of seven boots, the server hangs during bootup. This is what I see on the screen: After the line * Starting configure network device there is a short delay of about 1 second, then messages continue. I see * Starting Mount network filesystems [ OK ] * Starting set sysctls from /etc/sysctl.conf [ OK ] * Starting configure network device [ OK ] * Stopping Mount network filesystems [ OK ] * Stopping set sysctls from /etc/sysctl.conf [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] The last messages repeats several times, and then the boot process hangs. In 6/7 of cases, I wait for a minute, and after that bootup continues. But in approx 1/7 cases, the system hangs at this point forever. The machine does not respond to CTRL-ALT-DEL, I have to reboot it using SysRq-Keys. WORKAROUND: Setting the NFS entries in fstab to noauto completely removes the problem: There is no timeout during boot, and no lockup any more. The machine boote smoothly with the NFS-shares unmounted. After the machine is up, we can manually mount the NFS-shares without a problem. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-37-generic 3.2.0-37.58 ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 Uname: Linux 3.2.0-37-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:252: keine Soundkarten gefunden ... ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: arecord: device_list:252: keine Soundkarten gefunden ... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. CurrentDmesg: [ 85.200104] lxcbr0: no IPv6 routers present Date: Thu Feb 7 15:50:40 2013 HibernationDevice: RESUME=UUID=6c172536-57cc-4deb-867a-0718d572f23e IwConfig: lono wireless extensions. eth0 no wireless extensions. lxcbr0no wireless extensions. MachineType: To be filled by O.E.M. To be filled by O.E.M. MarkForUpload: True ProcEnviron: LANGUAGE=de:en TERM=xterm PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=/dev/mapper/lvmvg-root ro debug splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Es läuft kein PulseAudio-Dienst oder nicht als Sessiondienst. RelatedPackageVersions: linux-restricted-modules-3.2.0-37-generic N/A linux-backports-modules-3.2.0-37-generic N/A linux-firmware1.79.1 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to precise on 2012-04-28 (285 days ago) dmi.bios.date: 07/04/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0302 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: M5A97 EVO R2.0 dmi.board.vendor: ASUSTeK COMPUTER
Re: [Kernel-packages] [Bug 1118447] Re: Race condition with network and NFS mounts causes boottime hang
On Wed, Jan 08, 2014 at 06:47:03PM -, Christopher M. Penalver wrote: Steve Langasek, thank you for your comment. While it is always appreciated when a developer steps in and advises to a bug report, a portion of your comments don't make sense (which I'm happy to take off report, but they are relevant here). Regarding your comments: This bug very clearly has nothing at all to do with the BIOS. This wouldn't be clear to everyone, and just saying so doesn't clear this up for folks. It wouldn't be clear to everyone, but it *should* be clear to anyone who's involved in triaging kernel bug reports. If you're going to be asking bug submitters to take time to test with a newer BIOS, you should have a very good reason for it; otherwise you're wasting the valuable resource of our bug submitters' time, and filling the bug report with irrelevancies that do nothing to help fix the user's issue or improve Ubuntu. And in some cases, causing bugs to expire out of the system for invalid reasons. Christopher, it is inappropriate to ask bug submitters to test with a new BIOS for bugs like this - the BIOS is entirely unrelated to the network filesystem layer,... Ok, but the BIOS does have a hand in a well functioning system, of which the network filesystem layer depends on. No? No. The network filesystem layer *is unrelated to the BIOS*. And if you don't know this, you should not be following up to bugs asking users to do tests with a newer BIOS. Almost none of what the kernel does depends on the BIOS. There are only a few exceptions: suspend/resume support, power management, some aspects of video setup, hotkeys. Outside of this, the kernel is directly responsible for the hardware, and any bugs are kernel bugs, not BIOS bugs. ...if upgrading the BIOS did have any effect, it would be *irrelevant* to the bug at hand. Wouldn't the updated BIOS having a positive affect, be the exact reason why one would want to update, in order to eliminating collateral damage from a buggy BIOS? No. Any effect here is *not* because the BIOS is buggy, it's because modern kernels and firmware are complex and changing the BIOS could *coincidentally* work around this bug for one user. But it doesn't fix the bug, and doesn't help other users who are experiencing this bug. -- 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/1118447 Title: Race condition with network and NFS mounts causes boottime hang Status in “linux” package in Ubuntu: Confirmed Status in “nfs-utils” package in Ubuntu: Incomplete Bug description: I seem to experience a race condition during boot of my ubuntu 12.04 server: In approx. one of seven boots, the server hangs during bootup. This is what I see on the screen: After the line * Starting configure network device there is a short delay of about 1 second, then messages continue. I see * Starting Mount network filesystems [ OK ] * Starting set sysctls from /etc/sysctl.conf [ OK ] * Starting configure network device [ OK ] * Stopping Mount network filesystems [ OK ] * Stopping set sysctls from /etc/sysctl.conf [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] The last messages repeats several times, and then the boot process hangs. In 6/7 of cases, I wait for a minute, and after that bootup continues. But in approx 1/7 cases, the system hangs at this point forever. The machine does not respond to CTRL-ALT-DEL, I have to reboot it using SysRq-Keys. WORKAROUND: Setting the NFS entries in fstab to noauto completely removes the problem: There is no timeout during boot, and no lockup any more. The machine boote smoothly with the NFS-shares unmounted. After the machine is up, we can manually mount the NFS-shares without a problem. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-37-generic 3.2.0-37.58 ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 Uname: Linux 3.2.0-37-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:252: keine Soundkarten gefunden ... ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: arecord: device_list:252: keine Soundkarten gefunden ... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error:
[Kernel-packages] [Bug 1118447] Re: Race condition with network and NFS mounts causes boottime hang
Christopher, thank you for your comment on the outdated BIOS version. I completely see your point about good quality of bug reports. It may be some time until I can update our BIOSes, however. These are LTSP servers powering a whole school with 700 every-day users, it's elementary they are stable. For us being teachers by our main profession, it's a tough job running a network, since our superior authorities grant us almost no time for doing it. It's like you have a full-time job that keeps you busy 120% of your time and you are asked to run the company network in your free time -- with full responsibility. I heavily rely on sources like launchpad for doing that job, but I simply cannot always be in time with running tests on that system. Still, I want to give back a little by writing bug reports and helping to resolve bugs where I can. I will certainly find opportunity to upgrade our BIOSes sooner or later, but as others confirm the bug, I would not want to let this block the bug resolution process. Thanks to all for your help and effort! -- 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/1118447 Title: Race condition with network and NFS mounts causes boottime hang Status in “linux” package in Ubuntu: Confirmed Status in “nfs-utils” package in Ubuntu: Incomplete Bug description: I seem to experience a race condition during boot of my ubuntu 12.04 server: In approx. one of seven boots, the server hangs during bootup. This is what I see on the screen: After the line * Starting configure network device there is a short delay of about 1 second, then messages continue. I see * Starting Mount network filesystems [ OK ] * Starting set sysctls from /etc/sysctl.conf [ OK ] * Starting configure network device [ OK ] * Stopping Mount network filesystems [ OK ] * Stopping set sysctls from /etc/sysctl.conf [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] The last messages repeats several times, and then the boot process hangs. In 6/7 of cases, I wait for a minute, and after that bootup continues. But in approx 1/7 cases, the system hangs at this point forever. The machine does not respond to CTRL-ALT-DEL, I have to reboot it using SysRq-Keys. WORKAROUND: Setting the NFS entries in fstab to noauto completely removes the problem: There is no timeout during boot, and no lockup any more. The machine boote smoothly with the NFS-shares unmounted. After the machine is up, we can manually mount the NFS-shares without a problem. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-37-generic 3.2.0-37.58 ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 Uname: Linux 3.2.0-37-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:252: keine Soundkarten gefunden ... ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: arecord: device_list:252: keine Soundkarten gefunden ... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. CurrentDmesg: [ 85.200104] lxcbr0: no IPv6 routers present Date: Thu Feb 7 15:50:40 2013 HibernationDevice: RESUME=UUID=6c172536-57cc-4deb-867a-0718d572f23e IwConfig: lono wireless extensions. eth0 no wireless extensions. lxcbr0no wireless extensions. MachineType: To be filled by O.E.M. To be filled by O.E.M. MarkForUpload: True ProcEnviron: LANGUAGE=de:en TERM=xterm PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=/dev/mapper/lvmvg-root ro debug splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Es läuft kein PulseAudio-Dienst oder nicht als Sessiondienst. RelatedPackageVersions: linux-restricted-modules-3.2.0-37-generic N/A linux-backports-modules-3.2.0-37-generic N/A linux-firmware1.79.1 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to precise on 2012-04-28 (285 days ago) dmi.bios.date: 07/04/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0302 dmi.board.asset.tag: To be
[Kernel-packages] [Bug 1118447] Re: Race condition with network and NFS mounts causes boottime hang
Rüdiger Kupper, as per your https://launchpadlibrarian.net/130634701/BootDmesg.txt : [0.00] Your BIOS doesn't leave a aperture memory hole [0.00] Please enable the IOMMU option in the BIOS setup ... 13.747117] EDAC amd64: DRAM ECC disabled. [ 13.747128] EDAC amd64: ECC disabled in the BIOS or no ECC capability, module will not load. [ 13.747129] Either enable ECC checking or force module loading by setting 'ecc_enable_override'. hence, as per http://support.asus.com/download.aspx?SLanguage=enp=1s=24m=M5A97+EVO+R2.0os=hashedid=QsleSfiMgdBr9241 an update is available for your BIOS (2201). If you update to this following https://help.ubuntu.com/community/BiosUpdate , does it change anything? If it doesn't, could you please both specify what happened, and just provide the output of the following terminal command: sudo dmidecode -s bios-version sudo dmidecode -s bios-release-date For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Thank you for your understanding. ** Changed in: linux (Ubuntu) Status: Confirmed = Incomplete -- 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/1118447 Title: Race condition with network and NFS mounts causes boottime hang Status in “linux” package in Ubuntu: Incomplete Status in “nfs-utils” package in Ubuntu: Incomplete Bug description: I seem to experience a race condition during boot of my ubuntu 12.04 server: In approx. one of seven boots, the server hangs during bootup. This is what I see on the screen: After the line * Starting configure network device there is a short delay of about 1 second, then messages continue. I see * Starting Mount network filesystems [ OK ] * Starting set sysctls from /etc/sysctl.conf [ OK ] * Starting configure network device [ OK ] * Stopping Mount network filesystems [ OK ] * Stopping set sysctls from /etc/sysctl.conf [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] The last messages repeats several times, and then the boot process hangs. In 6/7 of cases, I wait for a minute, and after that bootup continues. But in approx 1/7 cases, the system hangs at this point forever. The machine does not respond to CTRL-ALT-DEL, I have to reboot it using SysRq-Keys. WORKAROUND: Setting the NFS entries in fstab to noauto completely removes the problem: There is no timeout during boot, and no lockup any more. The machine boote smoothly with the NFS-shares unmounted. After the machine is up, we can manually mount the NFS-shares without a problem. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-37-generic 3.2.0-37.58 ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 Uname: Linux 3.2.0-37-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:252: keine Soundkarten gefunden ... ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: arecord: device_list:252: keine Soundkarten gefunden ... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. CurrentDmesg: [ 85.200104] lxcbr0: no IPv6 routers present Date: Thu Feb 7 15:50:40 2013 HibernationDevice: RESUME=UUID=6c172536-57cc-4deb-867a-0718d572f23e IwConfig: lono wireless extensions. eth0 no wireless extensions. lxcbr0no wireless extensions. MachineType: To be filled by O.E.M. To be filled by O.E.M. MarkForUpload: True ProcEnviron: LANGUAGE=de:en TERM=xterm PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=/dev/mapper/lvmvg-root ro debug splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Es läuft kein PulseAudio-Dienst oder nicht als Sessiondienst. RelatedPackageVersions: linux-restricted-modules-3.2.0-37-generic N/A linux-backports-modules-3.2.0-37-generic N/A linux-firmware1.79.1 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to precise on 2012-04-28 (285 days ago) dmi.bios.date: 07/04/2012
[Kernel-packages] [Bug 1118447] Re: Race condition with network and NFS mounts causes boottime hang
** Tags removed: bios-outdated-1903 -- 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/1118447 Title: Race condition with network and NFS mounts causes boottime hang Status in “linux” package in Ubuntu: Confirmed Status in “nfs-utils” package in Ubuntu: Incomplete Bug description: I seem to experience a race condition during boot of my ubuntu 12.04 server: In approx. one of seven boots, the server hangs during bootup. This is what I see on the screen: After the line * Starting configure network device there is a short delay of about 1 second, then messages continue. I see * Starting Mount network filesystems [ OK ] * Starting set sysctls from /etc/sysctl.conf [ OK ] * Starting configure network device [ OK ] * Stopping Mount network filesystems [ OK ] * Stopping set sysctls from /etc/sysctl.conf [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] The last messages repeats several times, and then the boot process hangs. In 6/7 of cases, I wait for a minute, and after that bootup continues. But in approx 1/7 cases, the system hangs at this point forever. The machine does not respond to CTRL-ALT-DEL, I have to reboot it using SysRq-Keys. WORKAROUND: Setting the NFS entries in fstab to noauto completely removes the problem: There is no timeout during boot, and no lockup any more. The machine boote smoothly with the NFS-shares unmounted. After the machine is up, we can manually mount the NFS-shares without a problem. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-37-generic 3.2.0-37.58 ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 Uname: Linux 3.2.0-37-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:252: keine Soundkarten gefunden ... ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: arecord: device_list:252: keine Soundkarten gefunden ... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. CurrentDmesg: [ 85.200104] lxcbr0: no IPv6 routers present Date: Thu Feb 7 15:50:40 2013 HibernationDevice: RESUME=UUID=6c172536-57cc-4deb-867a-0718d572f23e IwConfig: lono wireless extensions. eth0 no wireless extensions. lxcbr0no wireless extensions. MachineType: To be filled by O.E.M. To be filled by O.E.M. MarkForUpload: True ProcEnviron: LANGUAGE=de:en TERM=xterm PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=/dev/mapper/lvmvg-root ro debug splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Es läuft kein PulseAudio-Dienst oder nicht als Sessiondienst. RelatedPackageVersions: linux-restricted-modules-3.2.0-37-generic N/A linux-backports-modules-3.2.0-37-generic N/A linux-firmware1.79.1 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to precise on 2012-04-28 (285 days ago) dmi.bios.date: 07/04/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0302 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: M5A97 EVO R2.0 dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx 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.:bvr0302:bd07/04/2012:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnM5A97EVOR2.0:rvrRev1.xx: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/1118447/+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 1118447] Re: Race condition with network and NFS mounts causes boottime hang
I can confirm this bug on different hardware with completely up to date BIOS and firmware. The race condition we are seeing is being reported from varied sources on different hardware over a significant period of time so I think it is very unlikely to be effected by BIOS of firmware versions. I believe the status should still be confirmed. ** Changed in: linux (Ubuntu) Status: Incomplete = Confirmed -- 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/1118447 Title: Race condition with network and NFS mounts causes boottime hang Status in “linux” package in Ubuntu: Confirmed Status in “nfs-utils” package in Ubuntu: Incomplete Bug description: I seem to experience a race condition during boot of my ubuntu 12.04 server: In approx. one of seven boots, the server hangs during bootup. This is what I see on the screen: After the line * Starting configure network device there is a short delay of about 1 second, then messages continue. I see * Starting Mount network filesystems [ OK ] * Starting set sysctls from /etc/sysctl.conf [ OK ] * Starting configure network device [ OK ] * Stopping Mount network filesystems [ OK ] * Stopping set sysctls from /etc/sysctl.conf [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] The last messages repeats several times, and then the boot process hangs. In 6/7 of cases, I wait for a minute, and after that bootup continues. But in approx 1/7 cases, the system hangs at this point forever. The machine does not respond to CTRL-ALT-DEL, I have to reboot it using SysRq-Keys. WORKAROUND: Setting the NFS entries in fstab to noauto completely removes the problem: There is no timeout during boot, and no lockup any more. The machine boote smoothly with the NFS-shares unmounted. After the machine is up, we can manually mount the NFS-shares without a problem. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-37-generic 3.2.0-37.58 ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 Uname: Linux 3.2.0-37-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:252: keine Soundkarten gefunden ... ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: arecord: device_list:252: keine Soundkarten gefunden ... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. CurrentDmesg: [ 85.200104] lxcbr0: no IPv6 routers present Date: Thu Feb 7 15:50:40 2013 HibernationDevice: RESUME=UUID=6c172536-57cc-4deb-867a-0718d572f23e IwConfig: lono wireless extensions. eth0 no wireless extensions. lxcbr0no wireless extensions. MachineType: To be filled by O.E.M. To be filled by O.E.M. MarkForUpload: True ProcEnviron: LANGUAGE=de:en TERM=xterm PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=/dev/mapper/lvmvg-root ro debug splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Es läuft kein PulseAudio-Dienst oder nicht als Sessiondienst. RelatedPackageVersions: linux-restricted-modules-3.2.0-37-generic N/A linux-backports-modules-3.2.0-37-generic N/A linux-firmware1.79.1 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to precise on 2012-04-28 (285 days ago) dmi.bios.date: 07/04/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0302 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: M5A97 EVO R2.0 dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx 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.:bvr0302:bd07/04/2012:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnM5A97EVOR2.0:rvrRev1.xx: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
[Kernel-packages] [Bug 1118447] Re: Race condition with network and NFS mounts causes boottime hang
A cleaner way of mounting the nfs shares than Josep provided is
something like what I have below. It looks for whether the nfs server
responds to a ping rather than the default route and will retry 3 times
with a 3 second timeout each time. It also checks all nfs mount points
listed in /etc/fstab which largely restores the functionality of that
file.
In any case this is a work around and it seems that fixing the original
bug would be preferable to continued effort in this direction.
cat /etc/fstab | sed 's/#.*//' | grep nfs | while read LINE
do
HOST=`echo $LINE | cut -f1 -d:`
DIR=`echo $LINE | awk '{print $2}'`
if ! mount -l -t nfs | awk '{print $3}' | grep -q ^$DIR$
then
echo -n Mounting '$DIR'
COUNT=0
STOP=0
while [ $STOP -eq 0 -a $COUNT -lt 3 ]
do
if ping -qAc 3 $HOST /dev/null
then
mount $DIR
STOP=1
echo done.
else
# no sleep needed here because ping will take 3
seconds to fail anyway
COUNT=$( expr $COUNT + 1 )
echo -n .
fi
done
if [ $STOP -eq 0 ]
then
echo failed. $HOST not responding.
fi
else
echo $DIR already mounted
fi
done
--
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/1118447
Title:
Race condition with network and NFS mounts causes boottime hang
Status in “linux” package in Ubuntu:
Confirmed
Status in “nfs-utils” package in Ubuntu:
Incomplete
Bug description:
I seem to experience a race condition during boot of my ubuntu 12.04 server:
In approx. one of seven boots, the server hangs during bootup.
This is what I see on the screen:
After the line
* Starting configure network device
there is a short delay of about 1 second, then messages continue. I
see
* Starting Mount network filesystems [ OK ]
* Starting set sysctls from /etc/sysctl.conf [ OK ]
* Starting configure network device [ OK ]
* Stopping Mount network filesystems [ OK ]
* Stopping set sysctls from /etc/sysctl.conf [ OK ]
* Starting Block the mounting event for NFS filesytems until statd is
running [ OK ]
* Stopping Block the mounting event for NFS filesytems until statd is
running [ OK ]
* Starting Block the mounting event for NFS filesytems until statd is
running [ OK ]
* Stopping Block the mounting event for NFS filesytems until statd is
running [ OK ]
The last messages repeats several times, and then the boot process hangs.
In 6/7 of cases, I wait for a minute, and after that bootup continues.
But in approx 1/7 cases, the system hangs at this point forever. The
machine does not respond to CTRL-ALT-DEL, I have to reboot it using
SysRq-Keys.
WORKAROUND: Setting the NFS entries in fstab to noauto completely removes
the problem:
There is no timeout during boot, and no lockup any more. The machine boote
smoothly with the NFS-shares unmounted. After the machine is up, we can
manually mount the NFS-shares without a problem.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-37-generic 3.2.0-37.58
ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35
Uname: Linux 3.2.0-37-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices: aplay: device_list:252: keine Soundkarten gefunden ...
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
ArecordDevices: arecord: device_list:252: keine Soundkarten gefunden ...
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path',
'/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p',
'/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c',
'/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211
not found.
CurrentDmesg: [ 85.200104] lxcbr0: no IPv6 routers present
Date: Thu Feb 7 15:50:40 2013
HibernationDevice: RESUME=UUID=6c172536-57cc-4deb-867a-0718d572f23e
IwConfig:
lono wireless extensions.
eth0 no wireless extensions.
lxcbr0no wireless extensions.
MachineType: To be filled by O.E.M. To be filled by O.E.M.
MarkForUpload: True
ProcEnviron:
LANGUAGE=de:en
TERM=xterm
PATH=(custom, no user)
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic
root=/dev/mapper/lvmvg-root ro debug splash vt.handoff=7
[Kernel-packages] [Bug 1118447] Re: Race condition with network and NFS mounts causes boottime hang
Andrew Radke, thank you for your comments. Regarding them https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1118447/comments/21 : I can confirm this bug on different hardware with completely up to date BIOS and firmware. The race condition we are seeing is being reported from varied sources on different hardware over a significant period of time so I think it is very unlikely to be effected by BIOS of firmware versions. I believe the status should still be confirmed. Despite it being replicated on disparate hardware, It is strongly preferred folks with an outdated BIOS update to the latest from their vendor. We can let this not be a show stopper, but please do not remove the tag as it's used for tracking purposes. In any event, could you please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags: kernel-fixed-upstream kernel-fixed-upstream-VERSION-NUMBER where VERSION-NUMBER is the version number of the kernel you tested. For example: kernel-fixed-upstream-v3.13-rc6 This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag: needs-upstream-testing If the mainline kernel does not fix this bug, please add the following tags: kernel-bug-exists-upstream kernel-bug-exists-upstream-VERSION-NUMBER As well, please remove the tag: needs-upstream-testing Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding. ** Tags added: bios-outdated-1903 -- 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/1118447 Title: Race condition with network and NFS mounts causes boottime hang Status in “linux” package in Ubuntu: Confirmed Status in “nfs-utils” package in Ubuntu: Incomplete Bug description: I seem to experience a race condition during boot of my ubuntu 12.04 server: In approx. one of seven boots, the server hangs during bootup. This is what I see on the screen: After the line * Starting configure network device there is a short delay of about 1 second, then messages continue. I see * Starting Mount network filesystems [ OK ] * Starting set sysctls from /etc/sysctl.conf [ OK ] * Starting configure network device [ OK ] * Stopping Mount network filesystems [ OK ] * Stopping set sysctls from /etc/sysctl.conf [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] The last messages repeats several times, and then the boot process hangs. In 6/7 of cases, I wait for a minute, and after that bootup continues. But in approx 1/7 cases, the system hangs at this point forever. The machine does not respond to CTRL-ALT-DEL, I have to reboot it using SysRq-Keys. WORKAROUND: Setting the NFS entries in fstab to noauto completely removes the problem: There is no timeout during boot, and no lockup any more. The machine boote smoothly with the NFS-shares unmounted. After the machine is up, we can manually mount the NFS-shares without a problem. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-37-generic 3.2.0-37.58 ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 Uname: Linux 3.2.0-37-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:252: keine Soundkarten gefunden ... ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: arecord: device_list:252: keine Soundkarten gefunden ... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. CurrentDmesg: [ 85.200104] lxcbr0: no IPv6 routers present Date: Thu Feb 7 15:50:40 2013 HibernationDevice: RESUME=UUID=6c172536-57cc-4deb-867a-0718d572f23e IwConfig: lono wireless extensions. eth0 no wireless extensions. lxcbr0no wireless extensions. MachineType: To be filled
[Kernel-packages] [Bug 1118447] Re: Race condition with network and NFS mounts causes boottime hang
Unfortunately I'm not going to be able to test as requested in the short term as the systems involved are in production. I will see if I can replicate it on some virtual machines but again it could be a while until this is possible. While I also understand the preference for up to date BIOS it should be used with care for removing a confirmed bug status when it can be seen that one person is out of date. We have multiple people reporting the problem and it should not be assumed that no-one has up to date BIOS. Please also don't take the following as me trying to be rude, it is merely meant to be an observation of the history of the bug: In the past we have also been asked to update our kernels and at no stage has this improved the situation. Is there anything to indicate that it is likely to help on this occasion or that it is a kernel bug and not a problem somewhere in the system startup scripts. It seems quite possible that it is a bug where upstart believes that the network is up when it's not. I'm not an upstart expert so my observations here may be way off. /etc/init/mountall-net.conf is set to start on net-device-up /etc/init/network-interface.conf emits net-device-up but doesn't necessarily configure anything other than the loopback interface /etc/init/networking.conf also emits net-device-up a grep network /var/log/boot.log on my system (that uses the noauto option and mounts via /etc/rc.local) shows the following: * Starting configure network device used by iSCSI root [ OK ] * Starting configure network device security [ OK ] * Starting configure network device security [ OK ] * Starting Mount network filesystems [ OK ] * Stopping Mount network filesystems [ OK ] * Starting configure network device [ OK ] * Starting Mount network filesystems [ OK ] * Stopping Mount network filesystems [ OK ] * Starting configure network device [ OK ] * Starting configure network device security [ OK ] * Starting configure virtual network devices [ OK ] * Stopping configure virtual network devices [ OK ] * Starting Serial port to network proxy ser2net [ OK ] Why is it that mountall-net (Mount network filesystems) is happening before either network-interface (configure network device) or networking (configure virtual network devices)? And what would be the implications of removing emits net-device-up from /etc/init/network-interface.conf so that we only get net-device-up once ifup -a has been run rather than just a network interface is up? -- 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/1118447 Title: Race condition with network and NFS mounts causes boottime hang Status in “linux” package in Ubuntu: Confirmed Status in “nfs-utils” package in Ubuntu: Incomplete Bug description: I seem to experience a race condition during boot of my ubuntu 12.04 server: In approx. one of seven boots, the server hangs during bootup. This is what I see on the screen: After the line * Starting configure network device there is a short delay of about 1 second, then messages continue. I see * Starting Mount network filesystems [ OK ] * Starting set sysctls from /etc/sysctl.conf [ OK ] * Starting configure network device [ OK ] * Stopping Mount network filesystems [ OK ] * Stopping set sysctls from /etc/sysctl.conf [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] The last messages repeats several times, and then the boot process hangs. In 6/7 of cases, I wait for a minute, and after that bootup continues. But in approx 1/7 cases, the system hangs at this point forever. The machine does not respond to CTRL-ALT-DEL, I have to reboot it using SysRq-Keys. WORKAROUND: Setting the NFS entries in fstab to noauto completely removes the problem: There is no timeout during boot, and no lockup any more. The machine boote
[Kernel-packages] [Bug 1118447] Re: Race condition with network and NFS mounts causes boottime hang
I found what's going on, it looks to me like there is another race condition between upstart and systemd scripts, sometimes rc.local gets to mount some of my NFS shares but other times it doesn't. The first thing I tried was doing a loop until ifconfig was showing a valid address but it didn't work either, at the time network card got the IP address the route was not present, so I've done a loop waiting for the route to be ready, and then mount the volumes. aux=0 while [ $aux -eq 0 ]; do route -n /tmp/network if grep 192.168.40.1 /tmp/network; then aux=1; fi done echo mounting home /tmp/network mount /home 2 /tmp/network echo mounting data /tmp/network mount /data 2 /tmp/network echo mounting usr /tmp/network mount /usr/local 2 /tmp/network exit 0 And having /etc/fstab not to mount at startup. fourier:/export/data/data nfs vers=3,rsize=32768,wsize=32768,nosuid,soft,noauto 0 0 But this is a very quick and dirty solution, any workaround more gentle? -- 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/1118447 Title: Race condition with network and NFS mounts causes boottime hang Status in “linux” package in Ubuntu: Confirmed Status in “nfs-utils” package in Ubuntu: Incomplete Bug description: I seem to experience a race condition during boot of my ubuntu 12.04 server: In approx. one of seven boots, the server hangs during bootup. This is what I see on the screen: After the line * Starting configure network device there is a short delay of about 1 second, then messages continue. I see * Starting Mount network filesystems [ OK ] * Starting set sysctls from /etc/sysctl.conf [ OK ] * Starting configure network device [ OK ] * Stopping Mount network filesystems [ OK ] * Stopping set sysctls from /etc/sysctl.conf [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] The last messages repeats several times, and then the boot process hangs. In 6/7 of cases, I wait for a minute, and after that bootup continues. But in approx 1/7 cases, the system hangs at this point forever. The machine does not respond to CTRL-ALT-DEL, I have to reboot it using SysRq-Keys. WORKAROUND: Setting the NFS entries in fstab to noauto completely removes the problem: There is no timeout during boot, and no lockup any more. The machine boote smoothly with the NFS-shares unmounted. After the machine is up, we can manually mount the NFS-shares without a problem. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-37-generic 3.2.0-37.58 ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 Uname: Linux 3.2.0-37-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:252: keine Soundkarten gefunden ... ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: arecord: device_list:252: keine Soundkarten gefunden ... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. CurrentDmesg: [ 85.200104] lxcbr0: no IPv6 routers present Date: Thu Feb 7 15:50:40 2013 HibernationDevice: RESUME=UUID=6c172536-57cc-4deb-867a-0718d572f23e IwConfig: lono wireless extensions. eth0 no wireless extensions. lxcbr0no wireless extensions. MachineType: To be filled by O.E.M. To be filled by O.E.M. MarkForUpload: True ProcEnviron: LANGUAGE=de:en TERM=xterm PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=/dev/mapper/lvmvg-root ro debug splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Es läuft kein PulseAudio-Dienst oder nicht als Sessiondienst. RelatedPackageVersions: linux-restricted-modules-3.2.0-37-generic N/A linux-backports-modules-3.2.0-37-generic N/A linux-firmware1.79.1 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to precise on 2012-04-28 (285 days ago) dmi.bios.date: 07/04/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0302 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: M5A97 EVO R2.0 dmi.board.vendor:
[Kernel-packages] [Bug 1118447] Re: Race condition with network and NFS mounts causes boottime hang
This bug has been around for years and we have worked around it by mounting NFS from rc.local. It's not pretty, but it gets pretty old to reboot your system and find it hanging. For some reason the NFS mounts won't wait until networking has completed (i.e. bringing up the interface). I doubt it is a kernel bug, but I'm happy to test. It's not just Ubuntu, but also Mint, so I guess all of Debian and derivatives. -- 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/1118447 Title: Race condition with network and NFS mounts causes boottime hang Status in “linux” package in Ubuntu: Confirmed Status in “nfs-utils” package in Ubuntu: Incomplete Bug description: I seem to experience a race condition during boot of my ubuntu 12.04 server: In approx. one of seven boots, the server hangs during bootup. This is what I see on the screen: After the line * Starting configure network device there is a short delay of about 1 second, then messages continue. I see * Starting Mount network filesystems [ OK ] * Starting set sysctls from /etc/sysctl.conf [ OK ] * Starting configure network device [ OK ] * Stopping Mount network filesystems [ OK ] * Stopping set sysctls from /etc/sysctl.conf [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] The last messages repeats several times, and then the boot process hangs. In 6/7 of cases, I wait for a minute, and after that bootup continues. But in approx 1/7 cases, the system hangs at this point forever. The machine does not respond to CTRL-ALT-DEL, I have to reboot it using SysRq-Keys. WORKAROUND: Setting the NFS entries in fstab to noauto completely removes the problem: There is no timeout during boot, and no lockup any more. The machine boote smoothly with the NFS-shares unmounted. After the machine is up, we can manually mount the NFS-shares without a problem. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-37-generic 3.2.0-37.58 ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 Uname: Linux 3.2.0-37-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:252: keine Soundkarten gefunden ... ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: arecord: device_list:252: keine Soundkarten gefunden ... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. CurrentDmesg: [ 85.200104] lxcbr0: no IPv6 routers present Date: Thu Feb 7 15:50:40 2013 HibernationDevice: RESUME=UUID=6c172536-57cc-4deb-867a-0718d572f23e IwConfig: lono wireless extensions. eth0 no wireless extensions. lxcbr0no wireless extensions. MachineType: To be filled by O.E.M. To be filled by O.E.M. MarkForUpload: True ProcEnviron: LANGUAGE=de:en TERM=xterm PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=/dev/mapper/lvmvg-root ro debug splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Es läuft kein PulseAudio-Dienst oder nicht als Sessiondienst. RelatedPackageVersions: linux-restricted-modules-3.2.0-37-generic N/A linux-backports-modules-3.2.0-37-generic N/A linux-firmware1.79.1 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to precise on 2012-04-28 (285 days ago) dmi.bios.date: 07/04/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0302 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: M5A97 EVO R2.0 dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx 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.:bvr0302:bd07/04/2012:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnM5A97EVOR2.0:rvrRev1.xx: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
[Kernel-packages] [Bug 1118447] Re: Race condition with network and NFS mounts causes boottime hang
Hey. I seem to experience this bug as well. It definitely feels like a race condition somewhere. I have to reboot my machine 2-5 times each morning to finally get it to boot. I don't have any issues mounting stuff after bootup is done, it certainly feels like a bug around upstart/mountall to me. This is on 12.04.3, with all the updates, etc. -- 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/1118447 Title: Race condition with network and NFS mounts causes boottime hang Status in “linux” package in Ubuntu: Confirmed Status in “nfs-utils” package in Ubuntu: Incomplete Bug description: I seem to experience a race condition during boot of my ubuntu 12.04 server: In approx. one of seven boots, the server hangs during bootup. This is what I see on the screen: After the line * Starting configure network device there is a short delay of about 1 second, then messages continue. I see * Starting Mount network filesystems [ OK ] * Starting set sysctls from /etc/sysctl.conf [ OK ] * Starting configure network device [ OK ] * Stopping Mount network filesystems [ OK ] * Stopping set sysctls from /etc/sysctl.conf [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] The last messages repeats several times, and then the boot process hangs. In 6/7 of cases, I wait for a minute, and after that bootup continues. But in approx 1/7 cases, the system hangs at this point forever. The machine does not respond to CTRL-ALT-DEL, I have to reboot it using SysRq-Keys. WORKAROUND: Setting the NFS entries in fstab to noauto completely removes the problem: There is no timeout during boot, and no lockup any more. The machine boote smoothly with the NFS-shares unmounted. After the machine is up, we can manually mount the NFS-shares without a problem. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-37-generic 3.2.0-37.58 ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 Uname: Linux 3.2.0-37-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:252: keine Soundkarten gefunden ... ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: arecord: device_list:252: keine Soundkarten gefunden ... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. CurrentDmesg: [ 85.200104] lxcbr0: no IPv6 routers present Date: Thu Feb 7 15:50:40 2013 HibernationDevice: RESUME=UUID=6c172536-57cc-4deb-867a-0718d572f23e IwConfig: lono wireless extensions. eth0 no wireless extensions. lxcbr0no wireless extensions. MachineType: To be filled by O.E.M. To be filled by O.E.M. MarkForUpload: True ProcEnviron: LANGUAGE=de:en TERM=xterm PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=/dev/mapper/lvmvg-root ro debug splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Es läuft kein PulseAudio-Dienst oder nicht als Sessiondienst. RelatedPackageVersions: linux-restricted-modules-3.2.0-37-generic N/A linux-backports-modules-3.2.0-37-generic N/A linux-firmware1.79.1 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to precise on 2012-04-28 (285 days ago) dmi.bios.date: 07/04/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0302 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: M5A97 EVO R2.0 dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx 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.:bvr0302:bd07/04/2012:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnM5A97EVOR2.0:rvrRev1.xx: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:
[Kernel-packages] [Bug 1118447] Re: Race condition with network and NFS mounts causes boottime hang
** Description changed: I seem to experience a race condition during boot of my ubuntu 12.04 server: In approx. one of seven boots, the server hangs during bootup. This is what I see on the screen: After the line - * Starting configure network device + * Starting configure network device there is a short delay of about 1 second, then messages continue. I see - * Starting Mount network filesystems [ OK ] - * Starting set sysctls from /etc/sysctl.conf [ OK ] - * Starting configure network device [ OK ] - * Stopping Mount network filesystems [ OK ] - * Stopping set sysctls from /etc/sysctl.conf [ OK ] - * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] - * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] - * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] - * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] + * Starting Mount network filesystems [ OK ] + * Starting set sysctls from /etc/sysctl.conf [ OK ] + * Starting configure network device [ OK ] + * Stopping Mount network filesystems [ OK ] + * Stopping set sysctls from /etc/sysctl.conf [ OK ] + * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] + * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] + * Starting Block the mounting event for NFS filesytems until statd is running [ OK ] + * Stopping Block the mounting event for NFS filesytems until statd is running [ OK ] The last messages repeats several times, and then the boot process hangs. In 6/7 of cases, I wait for a minute, and after that bootup continues. But in approx 1/7 cases, the system hangs at this point forever. The machine does not respond to CTRL-ALT-DEL, I have to reboot it using SysRq-Keys. + + WORKAROUND: Setting the NFS entries in fstab to noauto completely removes the problem: + There is no timeout during boot, and no lockup any more. The machine boote smoothly with the NFS-shares unmounted. After the machine is up, we can manually mount the NFS-shares without a problem. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-37-generic 3.2.0-37.58 ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35 Uname: Linux 3.2.0-37-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:252: keine Soundkarten gefunden ... ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 ArecordDevices: arecord: device_list:252: keine Soundkarten gefunden ... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. CurrentDmesg: [ 85.200104] lxcbr0: no IPv6 routers present Date: Thu Feb 7 15:50:40 2013 HibernationDevice: RESUME=UUID=6c172536-57cc-4deb-867a-0718d572f23e IwConfig: - lono wireless extensions. - - eth0 no wireless extensions. - - lxcbr0no wireless extensions. + lono wireless extensions. + + eth0 no wireless extensions. + + lxcbr0no wireless extensions. MachineType: To be filled by O.E.M. To be filled by O.E.M. MarkForUpload: True ProcEnviron: - LANGUAGE=de:en - TERM=xterm - PATH=(custom, no user) - LANG=de_DE.UTF-8 - SHELL=/bin/bash + LANGUAGE=de:en + TERM=xterm + PATH=(custom, no user) + LANG=de_DE.UTF-8 + SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=/dev/mapper/lvmvg-root ro debug splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Es läuft kein PulseAudio-Dienst oder nicht als Sessiondienst. RelatedPackageVersions: - linux-restricted-modules-3.2.0-37-generic N/A - linux-backports-modules-3.2.0-37-generic N/A - linux-firmware1.79.1 + linux-restricted-modules-3.2.0-37-generic N/A + linux-backports-modules-3.2.0-37-generic N/A + linux-firmware1.79.1 RfKill: - + SourcePackage: linux UpgradeStatus: Upgraded to precise on 2012-04-28 (285 days ago) dmi.bios.date: 07/04/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0302 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: M5A97 EVO R2.0 dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx 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:
