On 23.05.11 10:22:40, Eric B Munson wrote: > Commit 0837e3242c73566fc1c0196b4ec61779c25ffc93 fixes a situation on POWER7 > where events can roll back if a specualtive event doesn't actually complete. > This can raise a performance monitor exception. We need to catch this to > ensure > that we reset the PMC. In all cases the PMC will be less than 256 cycles from > overflow. > > This patch lifts Anton's fix for the problem in perf and applies it to > oprofile > as well. > > Signed-off-by: Eric B Munson <emun...@mgebm.net> > Cc: <sta...@kernel.org> # as far back as it applies cleanly > --- > arch/powerpc/oprofile/op_model_power4.c | 24 +++++++++++++++++++++++- > 1 files changed, 23 insertions(+), 1 deletions(-)
I applied the fix to oprofile/urgent. Thanks Eric, -Robert -- Advanced Micro Devices, Inc. Operating System Research Center _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev