Re: 2.6.21-rc4-mm1

From: Andy Whitcroft
Date: Fri Mar 23 2007 - 04:46:15 EST


Con Kolivas wrote:
> On Friday 23 March 2007 05:17, Andy Whitcroft wrote:
>> Ok, I have yet a third x86_64 machine is is blowing up with the latest
>> 2.6.21-rc4-mm1+hotfixes+rsdl-0.32 but working with
>> 2.6.21-rc4-mm1+hotfixes-RSDL. I have results on various hotfix levels
>> so I have just fired off a set of tests across the affected machines on
>> that latest hotfix stack plus the RSDL backout and the results should be
>> in in the next hour or two.
>>
>> I think there is a strong correlation between RSDL and these hangs. Any
>> suggestions as to the next step.
>
> Found a nasty in requeue_task
> + if (list_empty(old_array->queue + old_prio))
> + __clear_bit(old_prio, p->array->prio_bitmap);
>
> see anything wrong there? I do :P
>
> I'll queue that up with the other changes pending and hopefully that will fix
> your bug.

Tests queued with your rdsl-0.33 patch (I am assuming its in there).
Will let you know how it looks.

-apw

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