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Message-ID: <20180405032454.GD9301@bombadil.infradead.org> Date: Wed, 4 Apr 2018 20:24:54 -0700 From: Matthew Wilcox <willy@...radead.org> To: "Theodore Y. Ts'o" <tytso@....edu>, Dmitry Vyukov <dvyukov@...gle.com>, syzbot <syzbot+dc5ab2babdf22ca091af@...kaller.appspotmail.com>, linux-fsdevel <linux-fsdevel@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>, syzkaller-bugs@...glegroups.com, Al Viro <viro@...iv.linux.org.uk> Subject: Re: WARNING in up_write On Wed, Apr 04, 2018 at 11:22:00PM -0400, Theodore Y. Ts'o wrote: > On Wed, Apr 04, 2018 at 12:35:04PM -0700, Matthew Wilcox wrote: > > On Wed, Apr 04, 2018 at 09:24:05PM +0200, Dmitry Vyukov wrote: > > > On Tue, Apr 3, 2018 at 4:01 AM, syzbot > > > <syzbot+dc5ab2babdf22ca091af@...kaller.appspotmail.com> wrote: > > > > DEBUG_LOCKS_WARN_ON(sem->owner != get_current()) > > > > WARNING: CPU: 1 PID: 4441 at kernel/locking/rwsem.c:133 up_write+0x1cc/0x210 > > > > kernel/locking/rwsem.c:133 > > > > Kernel panic - not syncing: panic_on_warn set ... > > > > Message-Id: <1522852646-2196-1-git-send-email-longman@...hat.com> > > > > We were way ahead of syzbot in this case. :-) Not really ... syzbot caught it Monday evening ;-) Date: Mon, 02 Apr 2018 19:01:01 -0700 From: syzbot <syzbot+dc5ab2babdf22ca091af@...kaller.appspotmail.com> To: linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com, viro@...iv.linux.org.uk Subject: WARNING in up_write
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