Re: all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-29 Thread Daniel Phillips
On Friday 29 June 2001 22:40, Jeff Dike wrote: > The bug was UML-specific and specific in such a way that I don't think it's > possible to find the bug in the native kernel by making analogies from the > UML bug. Heh, too bad, there goes that chance to show uml bagging a major kernel bug. But

Re: all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-29 Thread Daniel Phillips
On Friday 29 June 2001 22:40, Jeff Dike wrote: The bug was UML-specific and specific in such a way that I don't think it's possible to find the bug in the native kernel by making analogies from the UML bug. Heh, too bad, there goes that chance to show uml bagging a major kernel bug. But

Re: all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-26 Thread Andrea Arcangeli
On Tue, Jun 26, 2001 at 10:47:12AM -0400, Bulent Abali wrote: > Andrea, > I would like try your patch but so far I can trigger the bug only when > running TUX 2.0-B6 which runs on 2.4.5-ac4. /bulent > to run tux you can apply those patches in `ls` order to 2.4.6pre5aa1:

Re: all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-26 Thread Bulent Abali
>> I am running in to a problem, seemingly a deadlock situation, where almost >> all the processes end up in the TASK_UNINTERRUPTIBLE state. All the > >could you try to reproduce with this patch applied on top of >2.4.6pre5aa1 or 2.4.6pre5 vanilla? Andrea, I would like try your patch but so

Re: all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-26 Thread Rik van Riel
On Tue, 26 Jun 2001, Christian Ehrhardt wrote: > > I've seen this under UML, Rik van Riel has seen it on a physical box, and we > > suspect that they're the same problem (i.e. mine isn't a UML-specific bug). > > Could it be smbfs? No. I've seen the hang on pure ex2. Rik -- Virtual memory is

Re: all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-26 Thread Christian Ehrhardt
On Mon, Jun 25, 2001 at 12:05:14PM -0500, Jeff Dike wrote: > [EMAIL PROTECTED] said: > > I am running in to a problem, seemingly a deadlock situation, where > > almost all the processes end up in the TASK_UNINTERRUPTIBLE state. > > All the process eventually stop responding, including login

Re: all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-26 Thread Christian Ehrhardt
On Mon, Jun 25, 2001 at 12:05:14PM -0500, Jeff Dike wrote: [EMAIL PROTECTED] said: I am running in to a problem, seemingly a deadlock situation, where almost all the processes end up in the TASK_UNINTERRUPTIBLE state. All the process eventually stop responding, including login shell, no

Re: all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-26 Thread Rik van Riel
On Tue, 26 Jun 2001, Christian Ehrhardt wrote: I've seen this under UML, Rik van Riel has seen it on a physical box, and we suspect that they're the same problem (i.e. mine isn't a UML-specific bug). Could it be smbfs? No. I've seen the hang on pure ex2. Rik -- Virtual memory is like a

Re: all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-26 Thread Bulent Abali
I am running in to a problem, seemingly a deadlock situation, where almost all the processes end up in the TASK_UNINTERRUPTIBLE state. All the could you try to reproduce with this patch applied on top of 2.4.6pre5aa1 or 2.4.6pre5 vanilla? Andrea, I would like try your patch but so far I

Re: all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-26 Thread Andrea Arcangeli
On Tue, Jun 26, 2001 at 10:47:12AM -0400, Bulent Abali wrote: Andrea, I would like try your patch but so far I can trigger the bug only when running TUX 2.0-B6 which runs on 2.4.5-ac4. /bulent to run tux you can apply those patches in `ls` order to 2.4.6pre5aa1:

Re: all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-25 Thread James Stevenson
Hi again i have a stack now an #0 schedule () at sched.c:536 #1 0x1002f932 in __wait_on_buffer (bh=0x50eb16e4) at buffer.c:157 #2 0x10036f46 in block_read (filp=0x5009787c, buf=0x80c08f0 "¤\201", count=8192, ppos=0x5009789c) at

Re: all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-25 Thread James Stevenson
Hi i have been looking at it a lot over the past few days i seem to be the person who can trigger it easyest. over the past couple of days i have been running with the #define WAITQUEUE_DEBUG 1 no problems seem to have appeared there though and the bug still triggers. On Mon, 25 Jun 2001,

Re: all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-25 Thread Rik van Riel
On Mon, 25 Jun 2001, Jeff Dike wrote: > [EMAIL PROTECTED] said: > > Can you give more details? Was there an aic7xxx scsi driver on the > > box? run_task_queue(_disk) should eventually unlock those pages but > > they remain locked. I am trying to narrow it down to fs/buffer code > > or the SCSI

Re: all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-25 Thread Bulent Abali
>[EMAIL PROTECTED] said: >> I am running in to a problem, seemingly a deadlock situation, where >> almost all the processes end up in the TASK_UNINTERRUPTIBLE state. >> All the process eventually stop responding, including login shell, no >> screen updates, keyboard etc. Can ping and sysrq key

all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-25 Thread Bulent Abali
keywords: tux, aic7xxx, 2.4.5-ac4, specweb99, __wait_on_page, __lock_page Greetings, I am running in to a problem, seemingly a deadlock situation, where almost all the processes end up in the TASK_UNINTERRUPTIBLE state. All the process eventually stop responding, including login shell, no

all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-25 Thread Bulent Abali
keywords: tux, aic7xxx, 2.4.5-ac4, specweb99, __wait_on_page, __lock_page Greetings, I am running in to a problem, seemingly a deadlock situation, where almost all the processes end up in the TASK_UNINTERRUPTIBLE state. All the process eventually stop responding, including login shell, no

Re: all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-25 Thread Bulent Abali
[EMAIL PROTECTED] said: I am running in to a problem, seemingly a deadlock situation, where almost all the processes end up in the TASK_UNINTERRUPTIBLE state. All the process eventually stop responding, including login shell, no screen updates, keyboard etc. Can ping and sysrq key works.

Re: all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-25 Thread Rik van Riel
On Mon, 25 Jun 2001, Jeff Dike wrote: [EMAIL PROTECTED] said: Can you give more details? Was there an aic7xxx scsi driver on the box? run_task_queue(tq_disk) should eventually unlock those pages but they remain locked. I am trying to narrow it down to fs/buffer code or the SCSI driver

Re: all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-25 Thread James Stevenson
Hi i have been looking at it a lot over the past few days i seem to be the person who can trigger it easyest. over the past couple of days i have been running with the #define WAITQUEUE_DEBUG 1 no problems seem to have appeared there though and the bug still triggers. On Mon, 25 Jun 2001,

Re: all processes waiting in TASK_UNINTERRUPTIBLE state

2001-06-25 Thread James Stevenson
Hi again i have a stack now an #0 schedule () at sched.c:536 #1 0x1002f932 in __wait_on_buffer (bh=0x50eb16e4) at buffer.c:157 #2 0x10036f46 in block_read (filp=0x5009787c, buf=0x80c08f0 ¤\201, count=8192, ppos=0x5009789c) at