Messages in this thread | | | From | (Arnaud Ebalard) | Subject | Re: Random crashes with 2.6.27-rc3 on PPC | Date | Sat, 23 Aug 2008 18:58:02 +0200 |
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Hi,
Michael Buesch <mb@bu3sch.de> writes:
> I am seeing random kernel and userland application > crashes on a Powerbook running a 2.6.27-rc3 based kernel > (wireless-testing.git). > > The crashes did recently appear. It might be the case that they were > introduced with the merge of 2.6.27-rc1 into wireless-testing. > I'm not sure on that one, however. Just a guess. I still need to > do more testing (also on vanilla upstream kernels). > > The crashes are completely random and they look like bad hardware. > However I cannot reproduce on 2.6.25.9 (That's a kernel I still had > installed, so I tried that one). So it most likely is _not_ caused > by faulty hardware. > > The crashes are hard to reproduce, and happen about every 20 minutes > when compiling a kernel tree. (gcc segfaults). Sometimes the kernel > oopses in random places with pointer dereference faults.
Exact same thing here on a PB 12" (not a ppc64, but ppc32). It was not on a wireless-testing.git but on a recent net-2.6 or 2.6.27-rc3 (I do not remember precisely). I thought it was a thermal issue and did not spend time on it because of another regression I bisected (sysctl+IPv6) that version useless for me.
> Is this a known issue?
Now it is ;-)
> I'm going to bisect this one, but it will take a lot of time, as > reproducing takes about 20 minutes. So that's about an hour for one > test round.
Thanks for doing that.
Cheers,
a+
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