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From: syzbot <syzbot+8645fe63c4d22c8d27b8@syzkaller.appspotmail.com>
To: akpm@linux-foundation.org, liam.howlett@oracle.com,
	 linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	 syzkaller-bugs@googlegroups.com, willy@infradead.org
Subject: Re: [syzbot] [mm?] WARNING: suspicious RCU usage in mas_walk (2)
Date: Tue, 25 Jul 2023 23:57:22 -0700	[thread overview]
Message-ID: <0000000000000aeb7f06015e5cbd@google.com> (raw)
In-Reply-To: <000000000000607ff905ffc8e477@google.com>

syzbot has bisected this issue to:

commit a52f58b34afe095ebc5823684eb264404dad6f7b
Author: Matthew Wilcox (Oracle) <willy@infradead.org>
Date:   Mon Jul 24 18:54:10 2023 +0000

    mm: handle faults that merely update the accessed bit under the VMA lock

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1783585ea80000
start commit:   [unknown] 
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1443585ea80000
console output: https://syzkaller.appspot.com/x/log.txt?x=1043585ea80000
kernel config:  https://syzkaller.appspot.com/x/.config?x=f481ab36ce878b84
dashboard link: https://syzkaller.appspot.com/bug?extid=8645fe63c4d22c8d27b8
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1697cec9a80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1566986ea80000

Reported-by: syzbot+8645fe63c4d22c8d27b8@syzkaller.appspotmail.com
Fixes: a52f58b34afe ("mm: handle faults that merely update the accessed bit under the VMA lock")

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


  parent reply	other threads:[~2023-07-26  6:57 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-06  3:12 [syzbot] [mm?] WARNING: suspicious RCU usage in mas_walk (2) syzbot
2023-07-06 16:53 ` Liam R. Howlett
2023-07-25 20:27 ` syzbot
2023-07-26  6:57 ` syzbot [this message]
2023-07-27 16:47   ` Liam R. Howlett
2023-07-27 17:22     ` Suren Baghdasaryan
2023-07-27 17:59       ` Jann Horn
2023-07-27 18:12         ` Liam R. Howlett
2023-07-27 18:17         ` Matthew Wilcox
2023-07-27 18:31           ` Suren Baghdasaryan
2023-07-27 18:46             ` Matthew Wilcox
2023-07-27 19:20           ` Jann Horn
2023-07-27 20:08             ` Matthew Wilcox
2023-07-27 18:50   ` Matthew Wilcox
2023-07-27 18:50     ` syzbot
2023-07-27 18:52   ` Matthew Wilcox
2023-07-27 18:53     ` syzbot
2023-07-27 18:54       ` Matthew Wilcox
2023-07-27 19:12         ` Aleksandr Nogikh
2023-07-27 18:56   ` Matthew Wilcox
2023-07-27 19:17     ` syzbot

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