linux-fsdevel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Oleg Nesterov <oleg@redhat.com>
To: syzbot <syzbot+b70f2aabc707c69c9239@syzkaller.appspotmail.com>
Cc: chanho.min@lge.com, linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org, mhocko@suse.com, pavel@ucw.cz,
	rafael.j.wysocki@intel.com, syzkaller-bugs@googlegroups.com,
	viro@zeniv.linux.org.uk
Subject: Re: WARNING: syz-executor still has locks held!
Date: Wed, 20 Mar 2019 14:18:42 +0100	[thread overview]
Message-ID: <20190320131842.GA21673@redhat.com> (raw)
In-Reply-To: <0000000000004cdec6058485b2ce@google.com>

On 03/20, syzbot wrote:
>
> syzbot has bisected this bug to:
> 
> commit c22397888f1eed98cd59f0a88f2a5f6925f80e15
> Author: Chanho Min <chanho.min@lge.com>
> Date:   Mon Nov 12 03:54:45 2018 +0000
>
>     exec: make de_thread() freezable
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=14ee6217200000
> start commit:   c2239788 exec: make de_thread() freezable
> git tree:       upstream

Yes, this patch was wrong, but it was reverted by a72173ecfc6774cf2d55de9fb2
(Revert "exec: make de_thread() freezable")

> final crash:    https://syzkaller.appspot.com/x/report.txt?x=16ee6217200000
> console output: https://syzkaller.appspot.com/x/log.txt?x=12ee6217200000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=73e2bc0cb6463446
> dashboard link: https://syzkaller.appspot.com/bug?extid=b70f2aabc707c69c9239
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16c9e26d400000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=14e1234d400000
> 
> Reported-by: syzbot+b70f2aabc707c69c9239@syzkaller.appspotmail.com
> Fixes: c2239788 ("exec: make de_thread() freezable")


      parent reply	other threads:[~2019-03-20 13:20 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-24 17:40 WARNING: syz-executor still has locks held! syzbot
2019-03-20 12:24 ` syzbot
2019-03-20 13:16   ` Michal Hocko
2019-03-20 13:24     ` Oleg Nesterov
2019-03-20 13:29       ` Michal Hocko
2019-03-20 15:00         ` Oleg Nesterov
2019-03-20 15:12           ` Michal Hocko
2019-03-20 17:30             ` Oleg Nesterov
2019-03-20 19:45               ` Michal Hocko
2019-03-20 20:32                 ` Michal Hocko
2019-03-21 17:28                   ` Oleg Nesterov
2019-03-22 10:36                     ` Michal Hocko
2019-03-22 10:35               ` Pavel Machek
2019-03-20 13:18   ` Oleg Nesterov [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190320131842.GA21673@redhat.com \
    --to=oleg@redhat.com \
    --cc=chanho.min@lge.com \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mhocko@suse.com \
    --cc=pavel@ucw.cz \
    --cc=rafael.j.wysocki@intel.com \
    --cc=syzbot+b70f2aabc707c69c9239@syzkaller.appspotmail.com \
    --cc=syzkaller-bugs@googlegroups.com \
    --cc=viro@zeniv.linux.org.uk \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).