linux-kernel - Re: INFO: rcu detected stall in d

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Message-ID: <CACT4Y+Zkf-zR30E4DCxzwsn+WhfjG8uzKXmQGvqvu+7SQqWi0Q@mail.gmail.com>
Date:   Tue, 4 Sep 2018 10:18:33 +0200
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
Cc:     syzbot <syzbot+ae80b790eb412884ca77@...kaller.appspotmail.com>,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Al Viro <viro@...iv.linux.org.uk>
Subject: Re: INFO: rcu detected stall in d_walk

On Sat, May 19, 2018 at 8:41 AM, Dmitry Vyukov <dvyukov@...gle.com> wrote:
> On Wed, Apr 25, 2018 at 1:05 PM, Tetsuo Handa
> <penguin-kernel@...ove.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

It seems that that commit was pulled into linux-next and overridden
Tetsuo's fix command.
Now it's hopefully has gone from everywhere, so let's remark this with
the right commit:

#syz fix: restore cond_resched() in shrink_dcache_parent()