[Bug 262843] Re: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule
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[Bug 262843] Re: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule
** Information type changed from Public to Public Security -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/262843 Title: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/262843/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 262843] Re: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule
Kees Cook, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com /daily-live/current/ . If it remains an issue, could you please run the following command in the development release from a Terminal (Applications-Accessories-Terminal), as it will automatically gather and attach updated debug information to this report: apport-collect -p linux replace-with-bug-number Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the daily folder, but the one all the way at the bottom. 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-v3.11 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. ** Changed in: linux (Ubuntu) Status: Triaged = Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/262843 Title: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/262843/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 262843] Re: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule
adjusting from in progress as Andy is no longer assigned. ~JFo ** Changed in: linux (Ubuntu) Status: In Progress = Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/262843 Title: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 262843] Re: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule
** Changed in: linux (Ubuntu) Assignee: Andy Whitcroft (apw) = (unassigned) -- [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule https://bugs.launchpad.net/bugs/262843 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
[Bug 262843] Re: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule
Could this be a duplicate of bug 276476 ? -- [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule https://bugs.launchpad.net/bugs/262843 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
[Bug 262843] Re: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule
** Changed in: linux (Ubuntu) Assignee: Ubuntu Kernel Team (ubuntu-kernel-team) = Andy Whitcroft (apw) Status: Incomplete = In Progress -- [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule https://bugs.launchpad.net/bugs/262843 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
[Bug 262843] Re: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule
I upgraded to jaunty two or three weeks ago and use the jaunty kernel (currently 2.6.28-8) since then without problems. -- [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule https://bugs.launchpad.net/bugs/262843 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
[Bug 262843] Re: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule
Would anyone be willing to test with the latest pre-release of Jaunty 9.04 (currently Alpha4). It contains a newer 2.6.28 based kernel. It would be great to know if this issue remains. Also note that Jaunty Alpha5 is expected to come out within the next few days so you may want to test with this even newer Alpha - http://cdimage.ubuntu.com/releases/jaunty/ . Please let us know your results. I'm also reassigning this to the ubuntu-kernel-team. Thanks. ** Changed in: linux (Ubuntu) Assignee: Ben Collins (ben-collins) = Ubuntu Kernel Team (ubuntu-kernel-team) Status: Triaged = Incomplete -- [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule https://bugs.launchpad.net/bugs/262843 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
[Bug 262843] Re: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule
Has any progress been made on this? I'm seeing it in 2.6.27-9 too -- [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule https://bugs.launchpad.net/bugs/262843 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
[Bug 262843] Re: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule
Per some kernel team discussions I'm assigning a few bugs directly to a developer. Ben's the lucky winner for this one. ** Changed in: linux (Ubuntu) Assignee: Ubuntu Kernel Team (ubuntu-kernel-team) = Ben Collins (ben-collins) Status: Confirmed = Triaged -- [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule https://bugs.launchpad.net/bugs/262843 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
[Bug 262843] Re: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule
I still see it with -5. I see it also with -6 and -7 but both show also ata resets for me where I don't know if it's related or not. Here is some output for -5: $ uname -a Linux vorlon 2.6.27-5-generic #1 SMP Fri Oct 3 00:36:38 UTC 2008 x86_64 GNU/Linux [ 462.784063] INFO: task synaptic:6408 blocked for more than 120 seconds. [ 462.784076] echo 0 /proc/sys/kernel/hung_task_timeout_secs disables this message. [ 462.784082] synaptic D 0002 0 6408 6384 [ 462.784095] 8800df1c3bc8 0082 88015f1c3d57 8800df1c3c78 [ 462.784107] 807a5400 807a5400 807a5400 807a5400 [ 462.784115] 807a5400 807a5400 807a5400 807a5400 [ 462.784123] Call Trace: [ 462.784150] [8033a350] ? proc_delete_inode+0x0/0x70 [ 462.784157] [8033a350] ? proc_delete_inode+0x0/0x70 [ 462.784167] [805023d5] schedule_timeout+0x95/0xd0 [ 462.784176] [80502186] wait_for_common+0xb6/0x1a0 [ 462.784185] [802475c0] ? default_wake_function+0x0/0x10 [ 462.784193] [80502308] wait_for_completion+0x18/0x20 [ 462.784202] [80262cd2] flush_cpu_workqueue+0x62/0xa0 [ 462.784209] [80262930] ? wq_barrier_func+0x0/0x20 [ 462.784217] [80262e63] flush_workqueue+0x53/0x70 [ 462.784224] [80262e95] flush_scheduled_work+0x15/0x20 [ 462.784232] [8040d05d] tty_ldisc_release+0x4d/0x1f0 [ 462.784240] [80503bbe] ? _spin_lock+0xe/0x20 [ 462.784249] [80406abd] release_dev+0x45d/0x5c0 [ 462.784256] [80408644] ? tty_ioctl+0xf4/0x770 [ 462.784264] [802ffa94] ? d_free+0x74/0x80 [ 462.784271] [80406c3e] tty_release+0x1e/0x30 [ 462.784278] [802ecae9] __fput+0xc9/0x1b0 [ 462.784284] [802ecbf5] fput+0x25/0x30 [ 462.784290] [802e8f9b] filp_close+0x5b/0x90 [ 462.784296] [802e908f] sys_close+0xbf/0x120 [ 462.784305] [8021289a] system_call_fastpath+0x16/0x1b This got repeated for synaptic several times: [ 595.928066] INFO: task synaptic:6408 blocked for more than 120 seconds. [ 729.072053] INFO: task synaptic:6408 blocked for more than 120 seconds. [ 862.216053] INFO: task synaptic:6408 blocked for more than 120 seconds. [ 995.360062] INFO: task synaptic:6408 blocked for more than 120 seconds. [ 1128.504061] INFO: task synaptic:6408 blocked for more than 120 seconds. [ 1261.648062] INFO: task synaptic:6408 blocked for more than 120 seconds. [ 1394.792060] INFO: task synaptic:6408 blocked for more than 120 seconds. [ 1527.936062] INFO: task synaptic:6408 blocked for more than 120 seconds. [ 1661.080057] INFO: task synaptic:6408 blocked for more than 120 seconds. -- [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule https://bugs.launchpad.net/bugs/262843 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
[Bug 262843] Re: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule
This bug hasn't hit me since -5, but geser mentioned he is still having problems. ** Changed in: linux (Ubuntu) Status: Triaged = Confirmed -- [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule https://bugs.launchpad.net/bugs/262843 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
[Bug 262843] Re: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule
I think this is likely due to one of the two AppArmor patches between -1.2 and -2.3. I presently suspect the ptrace changes, and my most recent errors while running -2.3 triggered after doing a bunch of ptrace'ing with gdb. (Currently building a bisected kernel...) -- [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule https://bugs.launchpad.net/bugs/262843 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
[Bug 262843] Re: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule
** Changed in: linux (Ubuntu) Target: None = ubuntu-8.10 -- [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule https://bugs.launchpad.net/bugs/262843 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
[Bug 262843] Re: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule
Still happens with 2.6.27-4.5 on AMD64: [ 3472.484065] INFO: task mutt:32170 blocked for more than 120 seconds. [ 3472.484077] echo 0 /proc/sys/kernel/hung_task_timeout_secs disables this message. [ 3472.484082] mutt D 0002 0 32170 1 [ 3472.484090] 88007e52bb08 0046 880079659ed8 88011986e000 [ 3472.484098] 807c4400 807c4400 807c4400 807c4400 [ 3472.484105] 807c4400 807c4400 807c4400 807c4400 [ 3472.484110] Call Trace: [ 3472.484125] [803a8da9] ? rb_insert_color+0x109/0x140 [ 3472.484135] [80519b55] schedule_timeout+0x95/0xd0 [ 3472.484144] [8026ac7f] ? hrtimer_start+0xdf/0x1b0 [ 3472.484150] [80519906] wait_for_common+0xb6/0x1a0 [ 3472.484158] [802474d0] ? default_wake_function+0x0/0x10 [ 3472.484165] [80519a88] wait_for_completion+0x18/0x20 [ 3472.484172] [80262b12] flush_cpu_workqueue+0x62/0xa0 [ 3472.484178] [80262770] ? wq_barrier_func+0x0/0x20 [ 3472.484184] [80262ca3] flush_workqueue+0x53/0x70 [ 3472.484190] [80262cd5] flush_scheduled_work+0x15/0x20 [ 3472.484197] [8040cdfd] tty_ldisc_release+0x4d/0x1f0 [ 3472.484203] [80245cb0] ? __cond_resched+0x20/0x50 [ 3472.484208] [8051b33e] ? _spin_lock+0xe/0x20 [ 3472.484215] [8040685d] release_dev+0x45d/0x5c0 [ 3472.484222] [802e326e] ? __free_slab+0x9e/0x140 [ 3472.484229] [803076d6] ? mntput_no_expire+0x36/0x160 [ 3472.484235] [804069de] tty_release+0x1e/0x30 [ 3472.484241] [802ec929] __fput+0xc9/0x1b0 [ 3472.484245] [802eca35] fput+0x25/0x30 [ 3472.484250] [802e8ddb] filp_close+0x5b/0x90 [ 3472.484256] [802511e2] put_files_struct+0x82/0xe0 [ 3472.484261] [80251294] exit_files+0x54/0x70 [ 3472.484266] [802531bd] do_exit+0x2ad/0x410 [ 3472.484271] [80253367] do_group_exit+0x47/0xc0 [ 3472.484277] [802533f7] sys_exit_group+0x17/0x20 [ 3472.484284] [8021288a] system_call_fastpath+0x16/0x1b -- [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule https://bugs.launchpad.net/bugs/262843 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
[Bug 262843] Re: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule
** Summary changed: - [2.6.27-2.3] temporary (?!) system deadlock with io_schedule + [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule ** Description changed: System started to have IO lock-ups until I maximized (?!) one of the - deadlocked processes, and then all blocked processes continued. + deadlocked processes, and then all blocked processes continued. Most of + the time, though, it just slowly hangs more and more of the system until + I have a full hardlock. -- [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule https://bugs.launchpad.net/bugs/262843 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
[Bug 262843] Re: [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule
As this problem was bugging me too much, I switched back to 2.6.27-1.2 where I didn't see this yet. -- [2.6.27-2.3] (sometimes temporary ?!) system deadlock with io_schedule https://bugs.launchpad.net/bugs/262843 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
