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Subject: Re: [linux-stable] 4fc2942b6e kernel BUG at
 kernel/time/hrtimer.c:109!
To: Thomas Gleixner <tglx@linutronix.de>
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Cc: kernel test robot <fengguang.wu@intel.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Tomasz Nowicki <tn@semihalf.com>,
        Christoffer Dall <christoffer.dall@linaro.org>,
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From: Marc Zyngier <marc.zyngier@arm.com>
Message-ID: <baadec00-8842-3604-b096-c01aa2ebde6a@arm.com> (sfid-20170217_113202_710503_38C59395)
Date: Fri, 17 Feb 2017 10:31:52 +0000
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On 17/02/17 10:16, Thomas Gleixner wrote:
> On Fri, 17 Feb 2017, Marc Zyngier wrote:
> 
>> On 17/02/17 09:28, Thomas Gleixner wrote:
>>> On Fri, 17 Feb 2017, kernel test robot wrote:
>>>
>>>> Hi Marc,
>>>>
>>>> We find this oops in linux-4.4.y. The gcc-6 compiled mainline kernel is fine.
>>
>> The last bit is worrying, as mainline has the exact same bug. Has it
>> been tested the same way?
> 
> The thing is that we reverted that patch in mainline:
> 
> See: commit 82e88ff1ea948d83125a8aaa7c9809f03ccc500f

Ah, right. It got nuked as part of the whole MONOTONIC_RAW blunder.

> I don't know why I reverted that as well. I should have kept it. Darn. I
> cherry pick it and send it linus wards next week.

Yes, I still think this single patch is a valuable sanity check.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...