summaryrefslogtreecommitdiffstats
path: root/usr
diff options
context:
space:
mode:
authorStanislaw Gruszka <sgruszka@redhat.com>2010-09-14 16:35:14 +0200
committerIngo Molnar <mingo@elte.hu>2010-09-15 10:41:36 +0200
commite75e863dd5c7d96b91ebbd241da5328fc38a78cc (patch)
treeb7b67512b6b610c8ee90149c9b48dbaeeb1e4910 /usr
parent9c03f1622af051004416dd3e24d8a0fa31e34178 (diff)
downloadop-kernel-dev-e75e863dd5c7d96b91ebbd241da5328fc38a78cc.zip
op-kernel-dev-e75e863dd5c7d96b91ebbd241da5328fc38a78cc.tar.gz
sched: Fix user time incorrectly accounted as system time on 32-bit
We have 32-bit variable overflow possibility when multiply in task_times() and thread_group_times() functions. When the overflow happens then the scaled utime value becomes erroneously small and the scaled stime becomes i erroneously big. Reported here: https://bugzilla.redhat.com/show_bug.cgi?id=633037 https://bugzilla.kernel.org/show_bug.cgi?id=16559 Reported-by: Michael Chapman <redhat-bugzilla@very.puzzling.org> Reported-by: Ciriaco Garcia de Celis <sysman@etherpilot.com> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Cc: <stable@kernel.org> # 2.6.32.19+ (partially) and 2.6.33+ LKML-Reference: <20100914143513.GB8415@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'usr')
0 files changed, 0 insertions, 0 deletions
OpenPOWER on IntegriCloud