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SubjectRe: 2.6.38-rc3 regression on parisc: segfaults
> > I have been testing devel kernels on SMP L1000 successfully until 
> > 2.6.38-rc2-00324-g70d1f36 included. The testing means booting the new
> > kernel and running aptitude to update to current debian unstable.
> >
> > Now I tried 2.6.38-rc3 and got a crash from aptitude on 2 out of 2
> > tries. Maybe aptitude was broken inbetween but it looks like a kernel
> > bug. Retried 2.6.38-rc2-00324-g70d1f36 and that seemed to work fine so
> > it's more likely a kernel problem.
> >
> > What additional information can I provide?
> Probably a bisection, if you could. There have been no parisc patches
> between -rc2 and -rc3, so it's coming from outside the architecture.

The result is strange :(

6b28405395f7ec492ea69f541cc774adcb9e00ca is the first bad commit
commit 6b28405395f7ec492ea69f541cc774adcb9e00ca
Author: Axel Köllhofer <>
Date: Sat Jan 22 14:33:50 2011 -0600

staging: r8712u: Add new device IDs

This patch adds several new device ids to the r8712u staging driver.
The new ids were retrieved from latest vendor driver (v2.
downloadable from

Signed-off-by: Axel Koellhofer <>
Signed-off-by: Larry Finger <>
Cc: Stable <> [2.6.37]
Signed-off-by: Greg Kroah-Hartman <>

:040000 040000 185c3d2c1e98cc99009bfb772ed0779410784110 f5aa903931116f28f803003f594fec3b2a29a6f6 M drivers

Seems absolutely unrelated - I do not have staging enabled so so no
CONFIG_R8712U either.

The "bad" bisects were clearly bad and failed quicky during aptitude
list update but the good ones might have needed more stress... or it is
some alignment-like problem. Will try again starting from these bad
bisects to narrow it down, and stress seemingly good ones better.

Meelis Roos (
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