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From: "Agustín DallʼAlba" <agustin@dallalba.com.ar>
To: Vitaly Wool <vitalywool@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>,
	Seth Jennings <sjenning@redhat.com>,
	 Dan Streetman <ddstreet@ieee.org>, Linux-MM <linux-mm@kvack.org>,
	Henry Burns <henrywolfeburns@gmail.com>
Subject: Re: CRASH: General protection fault in z3fold
Date: Mon, 09 Sep 2019 19:59:30 -0300	[thread overview]
Message-ID: <28453b3deba00d9343fdcbde5bcda00e7615d321.camel@dallalba.com.ar> (raw)
In-Reply-To: <CAMJBoFNa3w5zHwM8QOUgr-UUctKnXn3b6SzeZ5MB5CXDdS3wwg@mail.gmail.com>

On Mon, 2019-09-09 at 14:44 +0200, Vitaly Wool wrote:
> On Mon, Sep 9, 2019 at 9:17 AM Vitaly Wool <vitalywool@gmail.com> wrote:
> > On Mon, Sep 9, 2019 at 2:14 AM Agustín DallʼAlba <agustin@dallalba.com.ar> wrote:
> > > However trace 2 (__zswap_pool_release blocked for more than xxxx
> > > seconds) still happens.
> > 
> > That one is pretty new and seems to have been caused by
> > d776aaa9895eb6eb770908e899cb7f5bd5025b3c ("mm/z3fold.c: fix race
> > between migration and destruction").
> > I'm looking into this now and CC'ing Henry just in case.
> 
> Agustin, could you please try reverting that commit? I don't think
> it's working as it should.
> 
> > ~Vitaly

I reverted the commit and I haven't seen the deadlock happen again.
Should I be experiencing some side effect of having reverted that?

Thanks,
Agustín



  parent reply	other threads:[~2019-09-09 22:59 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-05  4:05 Agustín DallʼAlba
2019-09-05 11:55 ` Vlastimil Babka
2019-09-08 11:09   ` Vitaly Wool
2019-09-09  0:14     ` Agustín DallʼAlba
2019-09-09  7:17       ` Vitaly Wool
2019-09-09 12:44         ` Vitaly Wool
2019-09-09 17:51           ` Henry Burns
2019-09-09 22:59           ` Agustín DallʼAlba [this message]
2019-09-10  1:08             ` Henry Burns

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