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From: syzbot <syzbot+e58112d71f77113ddb7b@syzkaller.appspotmail.com>
To: aarcange@redhat.com, akpm@linux-foundation.org,
	christian@brauner.io, davem@davemloft.net, ebiederm@xmission.com,
	elena.reshetova@intel.com, guro@fb.com, hch@infradead.org,
	james.bottomley@hansenpartnership.com, jasowang@redhat.com,
	jglisse@redhat.com, keescook@chromium.org, ldv@altlinux.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	linux-parisc@vger.kernel.org, luto@amacapital.net,
	mhocko@suse.com, mingo@kernel.org, mst@redhat.com,
	namit@vmware.com, peterz@infradead.org,
	syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk,
	wad@chromium.org
Subject: Re: WARNING in __mmdrop
Date: Sat, 20 Jul 2019 03:08:00 -0700	[thread overview]
Message-ID: <000000000000964b0d058e1a0483@google.com> (raw)
In-Reply-To: <0000000000008dd6bb058e006938@google.com>

syzbot has bisected this bug to:

commit 7f466032dc9e5a61217f22ea34b2df932786bbfc
Author: Jason Wang <jasowang@redhat.com>
Date:   Fri May 24 08:12:18 2019 +0000

     vhost: access vq metadata through kernel virtual address

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=149a8a20600000
start commit:   6d21a41b Add linux-next specific files for 20190718
git tree:       linux-next
final crash:    https://syzkaller.appspot.com/x/report.txt?x=169a8a20600000
console output: https://syzkaller.appspot.com/x/log.txt?x=129a8a20600000
kernel config:  https://syzkaller.appspot.com/x/.config?x=3430a151e1452331
dashboard link: https://syzkaller.appspot.com/bug?extid=e58112d71f77113ddb7b
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10139e68600000

Reported-by: syzbot+e58112d71f77113ddb7b@syzkaller.appspotmail.com
Fixes: 7f466032dc9e ("vhost: access vq metadata through kernel virtual  
address")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection

  reply	other threads:[~2019-07-20 10:08 UTC|newest]

Thread overview: 88+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-19  3:35 WARNING in __mmdrop syzbot
2019-07-20 10:08 ` syzbot [this message]
2019-07-21 10:02   ` Michael S. Tsirkin
2019-07-21 12:18     ` Michael S. Tsirkin
2019-07-22  5:24       ` Jason Wang
2019-07-22  8:08         ` Michael S. Tsirkin
2019-07-23  4:01           ` Jason Wang
2019-07-23  5:01             ` Michael S. Tsirkin
2019-07-23  5:47               ` Jason Wang
2019-07-23  7:23                 ` Michael S. Tsirkin
2019-07-23  7:53                   ` Jason Wang
2019-07-23  8:10                     ` Michael S. Tsirkin
2019-07-23  8:49                       ` Jason Wang
2019-07-23  9:26                         ` Michael S. Tsirkin
2019-07-23 13:31                           ` Jason Wang
2019-07-25  5:52                             ` Michael S. Tsirkin
2019-07-25  7:43                               ` Jason Wang
2019-07-25  8:28                                 ` Michael S. Tsirkin
2019-07-25 13:21                                   ` Jason Wang
2019-07-25 13:26                                     ` Michael S. Tsirkin
2019-07-25 14:25                                       ` Jason Wang
2019-07-26 11:49                                         ` Michael S. Tsirkin
2019-07-26 12:00                                           ` Jason Wang
2019-07-26 12:38                                             ` Michael S. Tsirkin
2019-07-26 12:53                                               ` Jason Wang
2019-07-26 13:36                                                 ` Jason Wang
2019-07-26 13:49                                                   ` Michael S. Tsirkin
2019-07-29  5:54                                                     ` Jason Wang
2019-07-29  8:59                                                       ` Michael S. Tsirkin
2019-07-29 14:24                                                         ` Jason Wang
2019-07-29 14:44                                                           ` Michael S. Tsirkin
2019-07-30  7:44                                                             ` Jason Wang
2019-07-30  8:03                                                               ` Jason Wang
2019-07-30 15:08                                                               ` Michael S. Tsirkin
2019-07-31  8:49                                                                 ` Jason Wang
2019-07-31 23:00                                                                   ` Jason Gunthorpe
2019-07-26 13:47                                                 ` Michael S. Tsirkin
2019-07-26 14:00                                                   ` Jason Wang
2019-07-26 14:10                                                     ` Michael S. Tsirkin
2019-07-26 15:03                                                     ` Jason Gunthorpe
2019-07-29  5:56                                                       ` Jason Wang
2019-07-21 12:28     ` RFC: call_rcu_outstanding (was Re: WARNING in __mmdrop) Michael S. Tsirkin
2019-07-21 13:17       ` Paul E. McKenney
2019-07-21 17:53         ` Michael S. Tsirkin
2019-07-21 19:28           ` Paul E. McKenney
2019-07-22  7:56             ` Michael S. Tsirkin
2019-07-22 11:57               ` Paul E. McKenney
2019-07-21 21:08         ` Matthew Wilcox
2019-07-21 23:31           ` Paul E. McKenney
2019-07-22  7:52             ` Michael S. Tsirkin
2019-07-22 11:51               ` Paul E. McKenney
2019-07-22 13:41                 ` Jason Gunthorpe
2019-07-22 15:52                   ` Paul E. McKenney
2019-07-22 16:04                     ` Jason Gunthorpe
2019-07-22 16:15                       ` Michael S. Tsirkin
2019-07-22 16:15                       ` Paul E. McKenney
2019-07-22 15:14             ` Joel Fernandes
2019-07-22 15:47               ` Michael S. Tsirkin
2019-07-22 15:55                 ` Paul E. McKenney
2019-07-22 16:13                   ` Michael S. Tsirkin
2019-07-22 16:25                     ` Paul E. McKenney
2019-07-22 16:32                       ` Michael S. Tsirkin
2019-07-22 18:58                         ` Paul E. McKenney
2019-07-22  5:21     ` WARNING in __mmdrop Jason Wang
2019-07-22  8:02       ` Michael S. Tsirkin
2019-07-23  3:55         ` Jason Wang
2019-07-23  5:02           ` Michael S. Tsirkin
2019-07-23  5:48             ` Jason Wang
2019-07-23  7:25               ` Michael S. Tsirkin
2019-07-23  7:55                 ` Jason Wang
2019-07-23  7:56               ` Michael S. Tsirkin
2019-07-23  8:42                 ` Jason Wang
2019-07-23 10:27                   ` Michael S. Tsirkin
2019-07-23 13:34                     ` Jason Wang
2019-07-23 15:02                       ` Michael S. Tsirkin
2019-07-24  2:17                         ` Jason Wang
2019-07-24  8:05                           ` Michael S. Tsirkin
2019-07-24 10:08                             ` Jason Wang
2019-07-24 18:25                               ` Michael S. Tsirkin
2019-07-25  3:44                                 ` Jason Wang
2019-07-25  5:09                                   ` Michael S. Tsirkin
2019-07-24 16:53                             ` Jason Gunthorpe
2019-07-24 18:25                               ` Michael S. Tsirkin
2019-07-23 10:42                   ` Michael S. Tsirkin
2019-07-23 13:37                     ` Jason Wang
2019-07-22 14:11     ` Jason Gunthorpe
2019-07-25  6:02       ` Michael S. Tsirkin
2019-07-25  7:44         ` Jason Wang

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