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From: Sachin Sant <sachinp@linux.vnet.ibm.com>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@ozlabs.org, Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Subject: Re: kselftest:lost_exception_test failure with 4.11.0-rc5
Date: Mon, 10 Apr 2017 13:30:51 +0530	[thread overview]
Message-ID: <246FBE89-1651-432A-9E1B-E92E4B80CB4C@linux.vnet.ibm.com> (raw)
In-Reply-To: <87r314gzt1.fsf@concordia.ellerman.id.au>


> On 07-Apr-2017, at 6:06 PM, Michael Ellerman <mpe@ellerman.id.au> wrote:
> 
> Sachin Sant <sachinp@linux.vnet.ibm.com> writes:
> 
>> I have run into few instances where the lost_exception_test from
>> powerpc kselftest fails with SIGABRT. Following o/p is against
>> 4.11.0-rc5. The failure is intermittent. 
> 
> What hardware are you on?

I have seen this problem on a POWER8 LPAR.

> 
> How long does it take to run when it fails? I assume ~2 minutes?

Yes somewhere around 2 min.


>> MMCR2 0x0000000000000000
>> EBBHR 0x0000000010003dcc
>> BESCR 0x8000000100000000 GE PMAE 
> 
> And that says we have global enable set and events enabled.
> 
> 
> So I think there is a bug here somewhere. I don't really have time to
> dig into it now, neither does Maddy I think. But we should try and get
> to it at some point.
> 

Let me know if I can help with debug.

Thanks
-Sachin


> cheers
> 

      parent reply	other threads:[~2017-04-10  8:01 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-07  8:05 kselftest:lost_exception_test failure with 4.11.0-rc5 Sachin Sant
2017-04-07 12:36 ` Michael Ellerman
2017-04-10  3:54   ` Madhavan Srinivasan
2017-04-11 10:05     ` Michael Ellerman
2017-04-10  8:00   ` Sachin Sant [this message]

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