Re: 2.4.20: Proccess stuck in __lock_page ...

Marcelo Tosatti
2003-05-27T19:17:33Z

On Tue, 27 May 2003, manish wrote:

> Marcelo Tosatti wrote:
>
> >
> >On Tue, 27 May 2003, manish wrote:
> >
> >>Marc-Christian Petersen wrote:
> >>
> >>>On Tuesday 27 May 2003 20:33, Marcelo Tosatti wrote:
> >>>
> >>>Hi Marcelo,
> >>>
> >>>>It seems your "fix-pausing" patch is fixing a potential wakeup
> >>>>miss, right? (I looked quickly throught it). Could you explain me the
> >>>>problem its trying to fix and how?
> >>>>
> >>>Please have also a look here:
> >>>
> >>>http://hypermail.idiosynkrasia.net/linux-kernel/archived/2002/week45/0305.html
> >>>
> >>>ciao, Marc
> >>>
> >>Hello !
> >>
> >>I applied the fix-pausing-2 patch to the 2.4.20 kernel. This time on,
> >>the stack trace:
> >>
> >>sys_write
> >>generic_file_write
> >>ext2_get_group_desc
> >>bread
> >>__wait_on_buffer
> >>schedule
> >>
> >
> >Huh? You mean bonnie still deadlocks or ?
> >
> At the time the processes get stuck:
>
>
> [root@dyn-10-123-130-235 vm]# more /proc/meminfo
> total: used: free: shared: buffers: cached:
> Mem: 3709870080 3699126272 10743808 0 18313216 3531255808
> Swap: 1077501952 0 1077501952
> MemTotal: 3622920 kB
> MemFree: 10492 kB
> MemShared: 0 kB
> Buffers: 17884 kB
> Cached: 3448492 kB
> SwapCached: 0 kB
> Active: 25252 kB
> Inactive: 3445344 kB
> HighTotal: 2752512 kB
> HighFree: 2120 kB
> LowTotal: 870408 kB
> LowFree: 8372 kB
> SwapTotal: 1052248 kB
> SwapFree: 1052248 kB
>

Ok, so just to confirm: You're still getting pauses with Andrea's patches
but no hangs anymore?

Correct?