Bug#433187: linux-2.6 - [sparc64-smp] produces unkillable processes
Josip Rodin wrote:
> On Tue, Sep 04, 2007 at 06:16:05AM +0200, Fabio Massimo Di Nitto wrote:
>>>> #433187 is the bug that has killed the buildds on lebrun and spontini, right?
>>> AIUC, yes. at least i can reproduce that on my buildd.
>> Hi guys,
>>
>> We (David Miller and I) are already working on this. We finally got some
>> info dump from a debugging patched kernel and I expect we will have a fix
>> within the next 3/4 weeks.
>> >From our first look it seems like a futex bug and some users have
>> reported that the latest 2.6.23-rcX do not show this behavior. Clearly we
>> also want to figure out a fix for .22.
>>
>> Fabio
>
> I should mention that lebrun.d.o is still dead since the last attempt
> (ssh unresponsive since 2007-08-30 ~21:25), when it was running a 2.6.22.5
> with one davem patch applied (one line in kernel/futex_compat.c). If you
> need something more done to lebrun, such as kicking it back to life,
> just tell me...
>
If you have console access, it would be good to get a processor dump by break + p.
anyway we were able to reproduce the problem by doing some fancy building on
Niagara and that already isolate the problems to a more generic bit of the code
rather than CPU specific.
I personally have no say on how buildds should be managed.. i guess it's up to
you guys if you want to kick it back. If you do so just make sure you can grab
CPU register dumps from console.
Fabio
--
I'm going to make him an offer he can't refuse.
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