Re: 2.4.20: Proccess stuck in __lock_page ...

[Carl-Daniel Hailfinger]

Marcelo Tosatti wrote:
> 
> On Tue, 27 May 2003, Carl-Daniel Hailfinger wrote:
> 
>>Marcelo Tosatti wrote:
>>
>>>On Mon, 26 May 2003, manish wrote:
>>>>All the bonnie process and any other process (like df, ps -ef etc.) are
>>>>hung in __lock_page. Breaking into kdb, I observe the following for one
>>
>>Following is SysRq-T output for stuck processes during such a pause from
>>Christian Klose. Only processes in D state are listed for brevity.
>>Especially the last two call traces are interesting.
> 
> A "pause" is perfectly fine (to some extent, of course), now a hang is
> not. Is this backtrace from a hanged, unusable kernel or ?

AFAIK, the kernel is not unusable, but a 20 second pause with no disk
access at all is not nice either.

Regards,
Carl-Daniel