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Date: Mon, 5 Feb 2018 21:43:23 +0900
From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Subject: Re: bisected bd4c82c22c367e is the first bad commit (was [Bug
 198617] New: zswap causing random applications to crash)
Message-ID: <20180205124323.GB426@jagdpanzerIV>
References: <20180130114841.aa2d3bd99526c03c6a5b5810@linux-foundation.org>
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 <20180205013758.GA648@jagdpanzerIV>
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To: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: "Huang, Ying" <ying.huang@intel.com>, huang ying <huang.ying.caritas@gmail.com>, Andrew Morton <akpm@linux-foundation.org>, Michal Hocko <mhocko@kernel.org>, Vlastimil Babka <vbabka@suse.cz>, Sergey Senozhatsky <sergey.senozhatsky@gmail.com>, Minchan Kim <minchan@kernel.org>, Seth Jennings <sjenning@redhat.com>, Dan Streetman <ddstreet@ieee.org>, "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>, linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>

On (02/05/18 21:39), Sergey Senozhatsky wrote:
> > I have successfully reproduced the issue and find the problem.  The
> > following patch fix the issue for me, can you try it?
> 
> That was quick ;)
> 
> > ---------------------------------8<-------------------------------
> > From 4c52d531680f91572ebc6f4525a018e32a934ef0 Mon Sep 17 00:00:00 2001
> > From: Huang Ying <huang.ying.caritas@gmail.com>
> > Date: Mon, 5 Feb 2018 19:27:43 +0800
> > Subject: [PATCH] fontswap thp fix
> 
> Seems to be fixing the problem on my x86 box. Executed several tests, no
> crashes were observed. Can run more tests tomorrow.
> 
> 
> ============================================================================
> 
> Probably unrelated, but may be it is related: my X server used to hang
> sometimes (rarely) which I suspect was/is caused by nouveau driver. It,
> surprisingly, didn't hang this time around. Nouveau spitted a number
> of backtraces, but X server managed to survive it. Any chance that
> nouveau-X server thing was caused by THP?

No, wait. How could it be... I don't even use frontswap usually.
Sorry for the silly question.

	-ss

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