Bug#656196: [2.6.39 -> 3.0 regression] kernel stalls every few days (rcu_sched_state detected stall on CPU x)
Hi,
Am Donnerstag, den 02.08.2012, 17:41 -0700 schrieb Jonathan Nieder:
> > I upgraded the kernel to 3.4 from experimental, the stall warning
> > doesn't appear anymore. At the same time, there are more "workaround"
> > messages during USB startup:
>
> Thanks!
>
> Earlier I asked about whether idle=mwait had any effect on this bug.
> Did it?
Now I have been running the 3.2 kernel from testing for some days with
idle=mwait and i haven't seen the kernel stall anymore, looks good.
There is a call trace in the kernel log, though, with a message that
support for mwait will be removed soon.
Before I go on to test other kernels, one other possibility has appeared
to me: Maybe the 3.2 bug has been fixed through new CPU microcode? Is
that likely? Some days after installing the 3.4 kernel I noticed a
message about missing microcode and installed the relevant package. The
CPU/BIOS has version 0x01000086, the new version is 0x010000db. Should I
try if the error reappears when removing the microcode package?
Michael Below
--
Michael Below <below@judiz.de>
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