From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
To: tj@kernel.org, farosas@linux.ibm.com
Cc: linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, jack@suse.cz
Subject: Re: write call hangs in kernel space after virtio hot-remove
Date: Fri, 27 Apr 2018 06:10:20 +0900 [thread overview]
Message-ID: <201804270610.FFH64587.OLVtHJFFFQOSOM@I-love.SAKURA.ne.jp> (raw)
In-Reply-To: <20180426185052.GM1911913@devbig577.frc2.facebook.com>
Tejun Heo wrote:
> (cc'ing Tetuso and quoting whole message)
>
> Tetuso, could this be the same problem as the hang in wb_shutdown()
> syszbot reported?
Excuse me, but I'm too unfamiliar to judge it. ;-)
Anyway, since Fabiano has a reproducer, I appreciate trying a patch at
https://groups.google.com/forum/#!msg/syzkaller-bugs/qeR_1VM0UvU/1zcLE0Y4BAAJ .
Also, Fabiano's attempt might be somewhat related to a NULL pointer race condition
at https://groups.google.com/forum/#!msg/syzkaller-bugs/bVx4WExoTDw/G68X4kPcAQAJ .
next prev parent reply other threads:[~2018-04-26 21:10 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-25 20:07 write call hangs in kernel space after virtio hot-remove Fabiano Rosas
2018-04-26 18:50 ` Tejun Heo
2018-04-26 21:10 ` Tetsuo Handa [this message]
2018-04-27 20:10 ` Fabiano Rosas
2018-05-03 14:42 ` Jan Kara
2018-05-03 16:05 ` Jeff Layton
2018-05-03 17:48 ` Matthew Wilcox
2018-05-09 14:45 ` Jan Kara
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