linux-kernel - Re: hard lock-up with 4.14 git

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Message-ID: <93c7c272-0201-31fd-3d76-0b652ec881a0@punnoor.de>
Date:   Fri, 13 Oct 2017 17:12:33 +0200
From:   Prakash Punnoor <prakash@...noor.de>
To:     Markus Trippelsdorf <markus@...ppelsdorf.de>
Cc:     LKML <linux-kernel@...r.kernel.org>, luto@...nel.org,
        mingo@...nel.org
Subject: Re: hard lock-up with 4.14 git

On 13.10.2017 13:56, Markus Trippelsdorf wrote:
> On 2017.10.13 at 13:39 +0200, Prakash Punnoor wrote:
>> after some use (eg. compiling packages) the machine locks up hard. Magic
>> SysRq doesn't work.
>>
>> I had trouble bisecting the offending commit. This is my third try. And
>> it points to 94b1b03b519b81c494900cb112aa00ed205cc2d9 "x86/mm: Rework
>> lazy TLB mode and TLB freshness tracking".
>>
>> Does it make sense? It still locks up with master. Please let me know if
>> you need more infos. Please CC, as I am not subscribed.
> This is a known issue. The fix is here:
> https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1508009.html
>
Thanks for the pointer. The fix seems to work for me, too.

Regards,

Prakash