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Fri, 22 Sep 2023 19:28:55 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Message-ID: <10ef34ca-3709-60ea-178d-53b6d469d723@I-love.SAKURA.ne.jp> Date: Fri, 22 Sep 2023 19:28:55 +0900 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.15.1 Subject: Re: [syzbot] [mm?] possible deadlock in console_flush_all Content-Language: en-US To: syzbot , syzkaller-bugs@googlegroups.com, Johannes Weiner References: <0000000000001ee6770605d78fe1@google.com> Cc: linux-mm@kvack.org, akpm@linux-foundation.org From: Tetsuo Handa In-Reply-To: <0000000000001ee6770605d78fe1@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Stat-Signature: 1gtjh68admq65p5sjap4uo7qx5riffdy X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 5D83EA002D X-Rspam-User: X-HE-Tag: 1695378543-542916 X-HE-Meta: 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 nirlpCMM 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: #syz invalid On 2023/09/21 14:13, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: dfa449a58323 Add linux-next specific files for 20230915 > git tree: linux-next > console output: https://syzkaller.appspot.com/x/log.txt?x=149f71c2680000 > kernel config: https://syzkaller.appspot.com/x/.config?x=e204dda2e58397ec > dashboard link: https://syzkaller.appspot.com/bug?extid=1196a75f5d71352645a4 > compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 > > Unfortunately, I don't have any reproducer for this issue yet. > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/34f9995871ed/disk-dfa449a5.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/95e2e1c3ab9e/vmlinux-dfa449a5.xz > kernel image: https://storage.googleapis.com/syzbot-assets/cfc6db9684d4/bzImage-dfa449a5.xz > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+1196a75f5d71352645a4@syzkaller.appspotmail.com