ACK: [SRU][Artful][Bionic][PATCH 0/1] powerpc/perf: Fix oops when grouping different pmu events

Joseph Salisbury joseph.salisbury at canonical.com
Thu Feb 22 17:11:56 UTC 2018


On 02/14/2018 03:59 AM, Kleber Souza wrote:
> On 02/02/18 21:50, Joseph Salisbury wrote:
>> BugLink: http://bugs.launchpad.net/bugs/1746225
>>
>> == SRU Justification ==
>> Due to this bug, perf fuzzer resulted in crash and system goes for a reboot
>> and results in a call trace shown in the bug.  It is due to grouping of 
>> different PMU events, which is fixed by mainline commit 5aa04b3eb6fca63d2e9827be656dcadc26d54e1
>>  
>> Commit 5aa04b3eb6fca63d2e9827be656dcadc26d54e11 is in mailine as of v4.15-rc5.
>>     
>>
>> == Fix ==
>> commit 5aa04b3eb6fca63d2e9827be656dcadc26d54e11
>> Author: Ravi Bangoria <ravi.bangoria at linux.vnet.ibm.com>
>> Date:   Thu Nov 30 14:03:22 2017 +0530
>>
>>     powerpc/perf: Fix oops when grouping different pmu events
>>
>>
>> == Regression Potential ==
>> Low.  This fix is specific to powerpc.
>>
>> == Test Case ==
>> A test kernel was built with this patch and tested by the original bug reporter.
>> The bug reporter states the test kernel resolved the bug.
>>
>>
>> Ravi Bangoria (1):
>>   powerpc/perf: Fix oops when grouping different pmu events
>>
>>  arch/powerpc/perf/core-book3s.c | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
> Acked-by: Kleber Sacilotto de Souza <kleber.souza at canonical.com>

Thanks, Kleber!





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