Messages in this thread |  | | Subject | Re: INFO: task hung in __blkdev_get | From | Tetsuo Handa <> | Date | Sun, 15 Apr 2018 00:26:54 +0900 |
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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
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