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From: Dmitry Vyukov <dvyukov@google.com>
Date: Sat, 19 May 2018 08:41:54 +0200
Message-ID: <CACT4Y+YFQfrnvV7XfeCsiQBQ7UicrHE=fadiYdJdPA8=jumW3g@mail.gmail.com>
Subject: Re: INFO: rcu detected stall in d_walk
To: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc: syzbot <syzbot+ae80b790eb412884ca77@syzkaller.appspotmail.com>,
        syzkaller-bugs <syzkaller-bugs@googlegroups.com>,
        linux-fsdevel <linux-fsdevel@vger.kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Al Viro <viro@zeniv.linux.org.uk>
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On Wed, Apr 25, 2018 at 1:05 PM, Tetsuo Handa
<penguin-kernel@i-love.sakura.ne.jp> wrote:
> OK. Patch is in vfs.git#for-next as 4fb48871409e2fcd.
>
> #syz fix: restore cond_resched() in shrink_dcache_parent()

I see there is another patch titled "fs/dcache.c: re-add
cond_resched() in shrink_dcache_parent()" points to this bug:
http://lkml.iu.edu/hypermail/linux/kernel/1804.1/06252.html