Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-02-04 Thread Nick Piggin
On Tuesday 05 February 2008 01:49, Mike Galbraith wrote: > On Tue, 2008-01-22 at 06:47 +0100, Mike Galbraith wrote: > > On Tue, 2008-01-22 at 16:25 +1100, Nick Piggin wrote: > > > On Tuesday 22 January 2008 16:03, Mike Galbraith wrote: > > > > I've hit same twice recently (not pan, and not

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-02-04 Thread Mike Galbraith
On Tue, 2008-01-22 at 06:47 +0100, Mike Galbraith wrote: > On Tue, 2008-01-22 at 16:25 +1100, Nick Piggin wrote: > > On Tuesday 22 January 2008 16:03, Mike Galbraith wrote: > > > > I've hit same twice recently (not pan, and not repeatable). > > > > Nasty. The attached patch is something really

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-02-04 Thread Mike Galbraith
On Tue, 2008-01-22 at 06:47 +0100, Mike Galbraith wrote: On Tue, 2008-01-22 at 16:25 +1100, Nick Piggin wrote: On Tuesday 22 January 2008 16:03, Mike Galbraith wrote: I've hit same twice recently (not pan, and not repeatable). Nasty. The attached patch is something really simple that

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-02-04 Thread Nick Piggin
On Tuesday 05 February 2008 01:49, Mike Galbraith wrote: On Tue, 2008-01-22 at 06:47 +0100, Mike Galbraith wrote: On Tue, 2008-01-22 at 16:25 +1100, Nick Piggin wrote: On Tuesday 22 January 2008 16:03, Mike Galbraith wrote: I've hit same twice recently (not pan, and not repeatable).

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-02-01 Thread Nick Piggin
On Friday 01 February 2008 09:45, Frederik Himpe wrote: > On ma, 2008-01-28 at 12:46 +1100, Nick Piggin wrote: > > On Sunday 27 January 2008 00:29, Frederik Himpe wrote: > > > On di, 2008-01-22 at 16:25 +1100, Nick Piggin wrote: > > > > > > On Tuesday 22 January 2008 07:58, Frederik Himpe wrote: >

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-02-01 Thread Nick Piggin
On Friday 01 February 2008 09:45, Frederik Himpe wrote: On ma, 2008-01-28 at 12:46 +1100, Nick Piggin wrote: On Sunday 27 January 2008 00:29, Frederik Himpe wrote: On di, 2008-01-22 at 16:25 +1100, Nick Piggin wrote: On Tuesday 22 January 2008 07:58, Frederik Himpe wrote: With

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-31 Thread Frederik Himpe
On ma, 2008-01-28 at 12:46 +1100, Nick Piggin wrote: > On Sunday 27 January 2008 00:29, Frederik Himpe wrote: > > On di, 2008-01-22 at 16:25 +1100, Nick Piggin wrote: > > > > > On Tuesday 22 January 2008 07:58, Frederik Himpe wrote: > > > > > > With Linux 2.6.24-rc8 I often have the problem that

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-31 Thread Frederik Himpe
On ma, 2008-01-28 at 12:46 +1100, Nick Piggin wrote: On Sunday 27 January 2008 00:29, Frederik Himpe wrote: On di, 2008-01-22 at 16:25 +1100, Nick Piggin wrote: On Tuesday 22 January 2008 07:58, Frederik Himpe wrote: With Linux 2.6.24-rc8 I often have the problem that the pan usenet

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-28 Thread Frederik Himpe
On ma, 2008-01-28 at 12:46 +1100, Nick Piggin wrote: > On Sunday 27 January 2008 00:29, Frederik Himpe wrote: > > On di, 2008-01-22 at 16:25 +1100, Nick Piggin wrote: > > > > > On Tuesday 22 January 2008 07:58, Frederik Himpe wrote: > > > > > > With Linux 2.6.24-rc8 I often have the problem that

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-28 Thread Frederik Himpe
On ma, 2008-01-28 at 12:46 +1100, Nick Piggin wrote: On Sunday 27 January 2008 00:29, Frederik Himpe wrote: On di, 2008-01-22 at 16:25 +1100, Nick Piggin wrote: On Tuesday 22 January 2008 07:58, Frederik Himpe wrote: With Linux 2.6.24-rc8 I often have the problem that the pan usenet

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-27 Thread Nick Piggin
On Sunday 27 January 2008 01:27, Pascal Terjan wrote: > Nick Piggin yahoo.com.au> writes: > > On Sunday 27 January 2008 00:29, Frederik Himpe wrote: > > > I just succeeded to reproduce the problem with this patch. Does this > > > smell like an XFS problem? > > I got the same issue using ext3 > >

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-27 Thread Nick Piggin
On Sunday 27 January 2008 00:29, Frederik Himpe wrote: > On di, 2008-01-22 at 16:25 +1100, Nick Piggin wrote: > > > > On Tuesday 22 January 2008 07:58, Frederik Himpe wrote: > > > > > With Linux 2.6.24-rc8 I often have the problem that the pan usenet > > > > > reader starts using 100% of CPU time

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-27 Thread Nick Piggin
On Sunday 27 January 2008 01:27, Pascal Terjan wrote: Nick Piggin nickpiggin at yahoo.com.au writes: On Sunday 27 January 2008 00:29, Frederik Himpe wrote: I just succeeded to reproduce the problem with this patch. Does this smell like an XFS problem? I got the same issue using ext3

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-26 Thread Pascal Terjan
Nick Piggin yahoo.com.au> writes: > On Sunday 27 January 2008 00:29, Frederik Himpe wrote: > > I just succeeded to reproduce the problem with this patch. Does this > > smell like an XFS problem? I got the same issue using ext3 > Possible. Though I think it is more likely to be a bug in the >

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-26 Thread Nick Piggin
On Sunday 27 January 2008 00:29, Frederik Himpe wrote: > On di, 2008-01-22 at 16:25 +1100, Nick Piggin wrote: > > > > On Tuesday 22 January 2008 07:58, Frederik Himpe wrote: > > > > > With Linux 2.6.24-rc8 I often have the problem that the pan usenet > > > > > reader starts using 100% of CPU time

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-26 Thread Frederik Himpe
On di, 2008-01-22 at 16:25 +1100, Nick Piggin wrote: > > > On Tuesday 22 January 2008 07:58, Frederik Himpe wrote: > > > > With Linux 2.6.24-rc8 I often have the problem that the pan usenet > > > > reader starts using 100% of CPU time after some time. When this > > > > happens, kill -9 does not

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-26 Thread Nick Piggin
On Sunday 27 January 2008 00:29, Frederik Himpe wrote: On di, 2008-01-22 at 16:25 +1100, Nick Piggin wrote: On Tuesday 22 January 2008 07:58, Frederik Himpe wrote: With Linux 2.6.24-rc8 I often have the problem that the pan usenet reader starts using 100% of CPU time after some

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-26 Thread Pascal Terjan
Nick Piggin nickpiggin at yahoo.com.au writes: On Sunday 27 January 2008 00:29, Frederik Himpe wrote: I just succeeded to reproduce the problem with this patch. Does this smell like an XFS problem? I got the same issue using ext3 Possible. Though I think it is more likely to be a bug in

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-23 Thread Valdis . Kletnieks
On Tue, 22 Jan 2008 16:25:58 +1100, Nick Piggin said: > > Index: linux-2.6/kernel/sched.c > === > --- linux-2.6.orig/kernel/sched.c > +++ linux-2.6/kernel/sched.c > @@ -4920,8 +4920,7 @@ static void show_task(struct task_struct >

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-23 Thread Valdis . Kletnieks
On Tue, 22 Jan 2008 16:25:58 +1100, Nick Piggin said: Index: linux-2.6/kernel/sched.c === --- linux-2.6.orig/kernel/sched.c +++ linux-2.6/kernel/sched.c @@ -4920,8 +4920,7 @@ static void show_task(struct task_struct

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-22 Thread Nick Piggin
On Tuesday 22 January 2008 21:37, Ingo Molnar wrote: > * Nick Piggin <[EMAIL PROTECTED]> wrote: > > Well I've twice tried to submit a patch to print stacks for running > > tasks as well, but nobody seems interested. It would at least give a > > chance to see something. > > i definitely remembering

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-22 Thread Ingo Molnar
* Nick Piggin <[EMAIL PROTECTED]> wrote: > Index: linux-2.6/kernel/sched.c > === > --- linux-2.6.orig/kernel/sched.c > +++ linux-2.6/kernel/sched.c > @@ -4920,8 +4920,7 @@ static void show_task(struct task_struct >

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-22 Thread Ingo Molnar
* Nick Piggin <[EMAIL PROTECTED]> wrote: > On Tuesday 22 January 2008 07:58, Frederik Himpe wrote: > > With Linux 2.6.24-rc8 I often have the problem that the pan usenet > > reader starts using 100% of CPU time after some time. When this happens, > > kill -9 does not work, and strace just hangs

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-22 Thread Ingo Molnar
* Nick Piggin [EMAIL PROTECTED] wrote: On Tuesday 22 January 2008 07:58, Frederik Himpe wrote: With Linux 2.6.24-rc8 I often have the problem that the pan usenet reader starts using 100% of CPU time after some time. When this happens, kill -9 does not work, and strace just hangs when

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-22 Thread Ingo Molnar
* Nick Piggin [EMAIL PROTECTED] wrote: Index: linux-2.6/kernel/sched.c === --- linux-2.6.orig/kernel/sched.c +++ linux-2.6/kernel/sched.c @@ -4920,8 +4920,7 @@ static void show_task(struct task_struct printk(KERN_CONT

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-22 Thread Nick Piggin
On Tuesday 22 January 2008 21:37, Ingo Molnar wrote: * Nick Piggin [EMAIL PROTECTED] wrote: Well I've twice tried to submit a patch to print stacks for running tasks as well, but nobody seems interested. It would at least give a chance to see something. i definitely remembering having

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-21 Thread Mike Galbraith
On Tue, 2008-01-22 at 16:25 +1100, Nick Piggin wrote: > On Tuesday 22 January 2008 16:03, Mike Galbraith wrote: > > I've hit same twice recently (not pan, and not repeatable). > > Nasty. The attached patch is something really simple that can sometimes help. > sysrq+p is also an option, if

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-21 Thread Nick Piggin
On Tuesday 22 January 2008 16:03, Mike Galbraith wrote: > On Tue, 2008-01-22 at 11:05 +1100, Nick Piggin wrote: > > On Tuesday 22 January 2008 07:58, Frederik Himpe wrote: > > > With Linux 2.6.24-rc8 I often have the problem that the pan usenet > > > reader starts using 100% of CPU time after some

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-21 Thread Mike Galbraith
On Tue, 2008-01-22 at 11:05 +1100, Nick Piggin wrote: > On Tuesday 22 January 2008 07:58, Frederik Himpe wrote: > > With Linux 2.6.24-rc8 I often have the problem that the pan usenet > > reader starts using 100% of CPU time after some time. When this happens, > > kill -9 does not work, and strace

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-21 Thread Nick Piggin
On Tuesday 22 January 2008 07:58, Frederik Himpe wrote: > With Linux 2.6.24-rc8 I often have the problem that the pan usenet > reader starts using 100% of CPU time after some time. When this happens, > kill -9 does not work, and strace just hangs when trying to attach to > the process. The same

2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-21 Thread Frederik Himpe
With Linux 2.6.24-rc8 I often have the problem that the pan usenet reader starts using 100% of CPU time after some time. When this happens, kill -9 does not work, and strace just hangs when trying to attach to the process. The same with gdb. ps shows the process as being in the R state. I

2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-21 Thread Frederik Himpe
With Linux 2.6.24-rc8 I often have the problem that the pan usenet reader starts using 100% of CPU time after some time. When this happens, kill -9 does not work, and strace just hangs when trying to attach to the process. The same with gdb. ps shows the process as being in the R state. I

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-21 Thread Nick Piggin
On Tuesday 22 January 2008 07:58, Frederik Himpe wrote: With Linux 2.6.24-rc8 I often have the problem that the pan usenet reader starts using 100% of CPU time after some time. When this happens, kill -9 does not work, and strace just hangs when trying to attach to the process. The same with

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-21 Thread Nick Piggin
On Tuesday 22 January 2008 16:03, Mike Galbraith wrote: On Tue, 2008-01-22 at 11:05 +1100, Nick Piggin wrote: On Tuesday 22 January 2008 07:58, Frederik Himpe wrote: With Linux 2.6.24-rc8 I often have the problem that the pan usenet reader starts using 100% of CPU time after some time.

Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

2008-01-21 Thread Mike Galbraith
On Tue, 2008-01-22 at 16:25 +1100, Nick Piggin wrote: On Tuesday 22 January 2008 16:03, Mike Galbraith wrote: I've hit same twice recently (not pan, and not repeatable). Nasty. The attached patch is something really simple that can sometimes help. sysrq+p is also an option, if you're on a