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| author | Ulrich Weigand <Ulrich.Weigand@de.ibm.com> | 2013-12-12 15:59:34 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-12-13 15:48:33 +1100 |
| commit | 36aa1b180e7398e2bd27642760bfaa4ad8c65ab6 (patch) | |
| tree | 3fe876673f333b130bd004daa62c566c8bd09f1d /security | |
| parent | e641eb03ab2b0f065fa5e64b4202fb5b0441b427 (diff) | |
| download | op-kernel-dev-36aa1b180e7398e2bd27642760bfaa4ad8c65ab6.zip op-kernel-dev-36aa1b180e7398e2bd27642760bfaa4ad8c65ab6.tar.gz | |
powerpc: PTRACE_PEEKUSR always returns FPR0
There is a bug in using ptrace to access FPRs via PTRACE_PEEKUSR /
PTRACE_POKEUSR. In effect, trying to access any of the FPRs always
really accesses FPR0, which does seriously break debugging :-)
The problem seems to have been introduced by commit 3ad26e5c4459d
(Merge branch 'for-kvm' into next).
[ It is indeed a merge conflict between Paul's FPU/VSX state rework
and my LE patches - Anton ]
Signed-off-by: Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions
