lkml.org 
[lkml]   [2018]   [Apr]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: INFO: task hung in __blkdev_get
From
Date
OK. The patch was sent to linux.git as commit 1e047eaab3bb5564.

#syz fix: block/loop: fix deadlock after loop_set_status

Dmitry Vyukov <dvyukov@google.com>" wrote:
> On Tue, Apr 10, 2018 at 3:04 PM, Tetsuo Handa
> <penguin-kernel@i-love.sakura.ne.jp> wrote:
> > Dmitry Vyukov wrote:
> >> On Tue, Apr 10, 2018 at 12:55 PM, Tetsuo Handa
> >> <penguin-kernel@i-love.sakura.ne.jp> wrote:
> >> > Hello.
> >> >
> >> > Since syzbot is reporting so many hung up bug which involves /dev/loopX ,
> >> > is it possible to "temporarily" apply below patch for testing under syzbot
> >>
> >> Unfortunately it's not possible, for full explanation please see:
> >> https://github.com/google/syzkaller/blob/master/docs/syzbot.md#no-custom-patches
> >>
> >
> > I mean, sending custom patch to linux.git for -rc and revert the custom patch
> > before -final is released. It won't take so much period until we get the result.
>
> Ah, I see, then I guess it wasn't a question to me.
>
I noticed that there already is the lockdep report at

possible deadlock in blkdev_reread_part
https://syzkaller.appspot.com/bug?id=bf154052f0eea4bc7712499e4569505907d15889

entry, and no patch is proposed yet:

https://groups.google.com/forum/#!msg/syzkaller-bugs/2Rw8-OM6IbM/SI4DyK-1AQAJ

\
 
 \ /
  Last update: 2018-04-14 17:28    [W:0.055 / U:0.608 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site