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Bug#433187: linux-2.6 - [sparc64-smp] produces unkillable processes


On Tue Sep 04, 2007 at 10:17:33 +0200, Fabio Massimo Di Nitto wrote:
> 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
> > 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.

I can easily reproduce that with my Sparc Ultra60 here, which is running
as buildd for experimental. The machines has the very same problem. I
will try that tonight.

Best you fetch me on IRC, nick zobel on IRCnet, OFTC and freenode.

If we can get the patch down to something which can also be applied to
a plain Etch kernel, i would also speak with Dann if he as Etch Kernel
Maintainer would be willing to accept the patch for the next point
release kernel. I (as stable release manager) would be willing to accept
it, if Dann is supporting this.


[root@debian /root]# man real-life
No manual entry for real-life

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