Re: 2.4.20: Proccess stuck in __lock_page ...

manish
2003-05-27T17:37:52Z

Carl-Daniel Hailfinger wrote:

>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
>
Hello !

It is not a system hang but the processes hang showing the same stack
trace. This is certainly not a pause since the bonnie processes that
were hung (or deadlocked) never completed after several hrs. The stack
trace was the same.

Thanks
Manish