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* 2.6.13.2 + reiser4 system hangs and poor performance
@ 2005-10-11 16:22 Chris Bainbridge
  2005-10-11 16:52 ` David Masover
  2005-10-12  9:08 ` jp.guillemin
  0 siblings, 2 replies; 6+ messages in thread
From: Chris Bainbridge @ 2005-10-11 16:22 UTC (permalink / raw)
  To: reiserfs-list

Hi,

Since updating to 2.6.13.2 last week I've had a couple of system hangs
which required a poweroff. I can now reproduce a bad performance +
can't reboot situation. I'm using gentoo with a reiser4 root
partition. I've only tested this on my own system, so if another
2.6.13.2 + reiser4 gentoo user could try this that would be useful.

Under 2.6.12.5, do 'time emerge =sun-jdk-1.5.0.05'. Total time is 2
minutes 10 seconds.
Under 2.6.13.2, do 'time emerge =sun-jdk-1.5.0.05'. Total time is 6
minutes 51 seconds. Will appear to hang at the "gzipping man page:
unpack200.1" but eventually finishes. After this, attempting to
shutdown will result in a system hang.

Like I said, this happens every time I emerge that package. Probably
it causes some pattern of disk I/O that triggers a bug in reiser4.
During the hang time, the pdflush process is taking up most of the
cpu, and there is almost no disk i/o. I tested with a non-preempt
kernel, and get the same. With 2.6.12.5, everything is okay.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: 2.6.13.2 + reiser4 system hangs and poor performance
  2005-10-11 16:22 2.6.13.2 + reiser4 system hangs and poor performance Chris Bainbridge
@ 2005-10-11 16:52 ` David Masover
  2005-10-12  9:08 ` jp.guillemin
  1 sibling, 0 replies; 6+ messages in thread
From: David Masover @ 2005-10-11 16:52 UTC (permalink / raw)
  To: Chris Bainbridge; +Cc: reiserfs-list

Chris Bainbridge wrote:
> Hi,
> 
> Since updating to 2.6.13.2 last week I've had a couple of system hangs
> which required a poweroff. I can now reproduce a bad performance +
> can't reboot situation. I'm using gentoo with a reiser4 root
> partition. I've only tested this on my own system, so if another
> 2.6.13.2 + reiser4 gentoo user could try this that would be useful.
> 
> Under 2.6.12.5, do 'time emerge =sun-jdk-1.5.0.05'. Total time is 2
> minutes 10 seconds.
> Under 2.6.13.2, do 'time emerge =sun-jdk-1.5.0.05'. Total time is 6
> minutes 51 seconds. Will appear to hang at the "gzipping man page:
> unpack200.1" but eventually finishes. After this, attempting to
> shutdown will result in a system hang.
> 
> Like I said, this happens every time I emerge that package. Probably
> it causes some pattern of disk I/O that triggers a bug in reiser4.
> During the hang time, the pdflush process is taking up most of the
> cpu, and there is almost no disk i/o. I tested with a non-preempt
> kernel, and get the same. With 2.6.12.5, everything is okay.

I'll confirm this.  Problem is, I think this was with the mm patch, and 
I tried the standard patch, which refused to compile.  I'll send a more 
detailed bug report later, but pretty much -- hang (after much longer, 
the install phaze of a glibc compile), the rest of the system seems to 
keep functioning, but shutdown doesn't work.  Don't remember if it was a 
single program hanging forever or an actual kernel panic.

I don't have all of my Reiser4 machines available at the moment, I'm on 
an OS X laptop.  Some are ssh-able, but some are physically off.


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: 2.6.13.2 + reiser4 system hangs and poor performance
  2005-10-11 16:22 2.6.13.2 + reiser4 system hangs and poor performance Chris Bainbridge
  2005-10-11 16:52 ` David Masover
@ 2005-10-12  9:08 ` jp.guillemin
  2005-10-12  9:11   ` Raymond A. Meijer
  1 sibling, 1 reply; 6+ messages in thread
From: jp.guillemin @ 2005-10-12  9:08 UTC (permalink / raw)
  To: Chris Bainbridge; +Cc: reiserfs-list


Hi,

I can confirm this problem :

Process or System hang during depmod -> need hard shutdown to get out.

Tested on 2.6.13, 2.6.13.2 , 2.6.13.3.

No problem with 2.6.13mm3.

How to reproduce it : Install the latest Nvidia driver.

No logs.

Best regards

JP


Selon Chris Bainbridge <chris.bainbridge@gmail.com>:

> Hi,
>
> Since updating to 2.6.13.2 last week I've had a couple of system hangs
> which required a poweroff. I can now reproduce a bad performance +
> can't reboot situation. I'm using gentoo with a reiser4 root
> partition. I've only tested this on my own system, so if another
> 2.6.13.2 + reiser4 gentoo user could try this that would be useful.
>
> Under 2.6.12.5, do 'time emerge =sun-jdk-1.5.0.05'. Total time is 2
> minutes 10 seconds.
> Under 2.6.13.2, do 'time emerge =sun-jdk-1.5.0.05'. Total time is 6
> minutes 51 seconds. Will appear to hang at the "gzipping man page:
> unpack200.1" but eventually finishes. After this, attempting to
> shutdown will result in a system hang.
>
> Like I said, this happens every time I emerge that package. Probably
> it causes some pattern of disk I/O that triggers a bug in reiser4.
> During the hang time, the pdflush process is taking up most of the
> cpu, and there is almost no disk i/o. I tested with a non-preempt
> kernel, and get the same. With 2.6.12.5, everything is okay.
>



^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: 2.6.13.2 + reiser4 system hangs and poor performance
  2005-10-12  9:08 ` jp.guillemin
@ 2005-10-12  9:11   ` Raymond A. Meijer
  2005-10-12  9:29     ` Chris Bainbridge
  0 siblings, 1 reply; 6+ messages in thread
From: Raymond A. Meijer @ 2005-10-12  9:11 UTC (permalink / raw)
  To: reiserfs-list

On Wednesday 12 October 2005 12:08, jp.guillemin@free.fr wrote:

> How to reproduce it : Install the latest Nvidia driver.

Interesting...I also have problems with Reiser4, 2.6.13 (I use archck8 
however) and NVIDIA...

X just locks up unexpectedly. Don't know if it's related but who 
knows...

I don't have any logs either. How can we troubleshoot?


Ray

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: 2.6.13.2 + reiser4 system hangs and poor performance
  2005-10-12  9:11   ` Raymond A. Meijer
@ 2005-10-12  9:29     ` Chris Bainbridge
  0 siblings, 0 replies; 6+ messages in thread
From: Chris Bainbridge @ 2005-10-12  9:29 UTC (permalink / raw)
  To: reiserfs-list

On 12/10/05, Raymond A. Meijer <rmeijer@internet.gr> wrote:
> On Wednesday 12 October 2005 12:08, jp.guillemin@free.fr wrote:
>
> > How to reproduce it : Install the latest Nvidia driver.
>
> Interesting...I also have problems with Reiser4, 2.6.13 (I use archck8
> however) and NVIDIA...
>
> X just locks up unexpectedly. Don't know if it's related but who
> knows...

I've had X lock, but I use ATI drivers.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: 2.6.13.2 + reiser4 system hangs and poor performance
@ 2005-10-12 13:02 Frieder Bürzele
  0 siblings, 0 replies; 6+ messages in thread
From: Frieder Bürzele @ 2005-10-12 13:02 UTC (permalink / raw)
  To: reiserfs-list

same for me

X locks but I still can login per ssh
the process ent.sda5! uses almost the whole cpu
/ is /dev/sda5

I´m using kernel 2.6.14-rc4 and reiser4patches from 2.6.14-rc2-mm2 + 
reiser4-add-put_inode.patch

so long

Frieder



jp wrote:

>Hi,
>
>I can confirm this problem :
>
>Process or System hang during depmod -> need hard shutdown to get out.
>
>Tested on 2.6.13, 2.6.13.2 , 2.6.13.3.
>
>No problem with 2.6.13mm3.
>
>How to reproduce it : Install the latest Nvidia driver.
>
>No logs.
>
>Best regards
>
>JP
>  
>

^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2005-10-12 13:02 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2005-10-11 16:22 2.6.13.2 + reiser4 system hangs and poor performance Chris Bainbridge
2005-10-11 16:52 ` David Masover
2005-10-12  9:08 ` jp.guillemin
2005-10-12  9:11   ` Raymond A. Meijer
2005-10-12  9:29     ` Chris Bainbridge
  -- strict thread matches above, loose matches on Subject: below --
2005-10-12 13:02 Frieder Bürzele

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