Public bug reported: A system freeze occurs at least once a day because of a kernel assertion at fs/ext4/inode.c:2003. Applications start to freeze probably because they are being blocked indefinitely for I/O. The system is still alive, but barely usable even for debugging. There is a possible regression because it started to occur shortly after upgrading to maverick. However, the second hard drive in this system seems to be dying because of a extreme number of load cycles which may be triggering the bug.
It seems to occur more often when the boinc daemon is running. This program uses all the CPU available and creates a lot of file updates and truncations. I tested with the latest mainline kernel (2.6.36-999.201009291611) and a similar bug seems to occur (line 2030 instead of 2003?). Attached is the kernel log at the time of the freeze. Some part is corrupted, so I hit SysRq-t another time before rebooting. ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: linux-image-2.6.35-22-generic 2.6.35-22.34 Regression: Yes Reproducible: No ProcVersionSignature: Ubuntu 2.6.35-22.34-generic 2.6.35.4 Uname: Linux 2.6.35-22-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. AplayDevices: **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC262 Analog [ALC262 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC262 Analog [ALC262 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: gauthierp 2375 F.... pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xe0a00000 irq 46' Mixer name : 'Realtek ALC262' Components : 'HDA:10ec0262,103c280c,00100100' Controls : 31 Simple ctrls : 19 CheckboxSubmission: 0378b0df62dc16d1ca4403d7647600ef CheckboxSystem: 6ce041aeed0a2c17b3343b66d157175d Date: Tue Oct 12 13:15:03 2010 Frequency: Once a day. HibernationDevice: RESUME=UUID=d6dd96dc-8163-4e66-b272-ffcd8e09221f InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027) MachineType: Hewlett-Packard HP xw4400 Workstation ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=1f110f9b-6c53-489f-844d-81cdec9f9c1d ro quiet splash ProcEnviron: PATH=(custom, user) LANG=fr_CA.utf8 SHELL=/bin/bash RelatedPackageVersions: linux-firmware 1.38 RfKill: 0: hp-wwan: Wireless WAN Soft blocked: no Hard blocked: no SourcePackage: linux dmi.bios.date: 12/07/2006 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 786D7 v02.02 dmi.board.name: 0A68h dmi.board.vendor: Hewlett-Packard dmi.chassis.asset.tag: 2UA708151K dmi.chassis.type: 6 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr786D7v02.02:bd12/07/2006:svnHewlett-Packard:pnHPxw4400Workstation:pvr:rvnHewlett-Packard:rn0A68h:rvr:cvnHewlett-Packard:ct6:cvr: dmi.product.name: HP xw4400 Workstation dmi.sys.vendor: Hewlett-Packard ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug kernel-fs maverick needs-upstream-testing regression-release -- Apps freeze because of BUG at fs/ext4/inode.c:2003 https://bugs.launchpad.net/bugs/659358 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs