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Sun, 08 Oct 2023 19:05:32 -0700 (PDT) Date: Sun, 08 Oct 2023 19:05:32 -0700 In-Reply-To: <0000000000001825ce06047bf2a6@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000071133306073f06ca@google.com> Subject: Re: [syzbot] [reiserfs?] possible deadlock in super_lock From: syzbot To: axboe@kernel.dk, brauner@kernel.org, chao@kernel.org, daniel.vetter@ffwll.ch, hdanton@sina.com, jack@suse.cz, jaegeuk@kernel.org, jinpu.wang@ionos.com, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, mairacanal@riseup.net, mcanal@igalia.com, reiserfs-devel@vger.kernel.org, syzkaller-bugs@googlegroups.com, terrelln@fb.com, willy@infradead.org, yukuai3@huawei.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT X-Spam-Status: Yes, score=5.6 required=5.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_SBL_CSS, SORTED_RECIPS,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on fry.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (fry.vger.email [0.0.0.0]); Sun, 08 Oct 2023 19:06:47 -0700 (PDT) X-Spam-Report: * 3.6 RCVD_IN_SBL_CSS RBL: Received via a relay in Spamhaus SBL-CSS * [2620:137:e000:0:0:0:3:0 listed in] [zen.spamhaus.org] * 0.3 FROM_LOCAL_HEX From: localpart has long hexadecimal sequence * 0.2 HEADER_FROM_DIFFERENT_DOMAINS From and EnvelopeFrom 2nd level * mail domains are different * 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record * -0.0 SPF_PASS SPF: sender matches SPF record * 2.5 SORTED_RECIPS Recipient list is sorted by address * -1.0 MAILING_LIST_MULTI Multiple indicators imply a widely-seen list * manager X-Spam-Level: ***** syzbot has bisected this issue to: commit 7908632f2927b65f7486ae6b67c24071666ba43f Author: Maíra Canal Date: Thu Sep 14 10:19:02 2023 +0000 Revert "drm/vkms: Fix race-condition between the hrtimer and the atomic commit" bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17fc0565680000 start commit: 2cf0f7156238 Merge tag 'nfs-for-6.6-2' of git://git.linux-.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=14020565680000 console output: https://syzkaller.appspot.com/x/log.txt?x=10020565680000 kernel config: https://syzkaller.appspot.com/x/.config?x=710dc49bece494df dashboard link: https://syzkaller.appspot.com/bug?extid=062317ea1d0a6d5e29e7 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=107e9518680000 Reported-by: syzbot+062317ea1d0a6d5e29e7@syzkaller.appspotmail.com Fixes: 7908632f2927 ("Revert "drm/vkms: Fix race-condition between the hrtimer and the atomic commit"") For information about bisection process see: https://goo.gl/tpsmEJ#bisection