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Thu, 31 Oct 2024 09:41:02 -0700 (PDT) Date: Thu, 31 Oct 2024 09:41:02 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6723b31e.050a0220.35b515.0165.GAE@google.com> Subject: Re: [syzbot] [mm?] [input?] [usb?] INFO: rcu detected stall in brk (2) From: syzbot To: akpm@linux-foundation.org, jannh@google.com, liam.howlett@oracle.com, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-usb@vger.kernel.org, lorenzo.stoakes@oracle.com, syzkaller-bugs@googlegroups.com, vbabka@suse.cz Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 45E384002A X-Stat-Signature: gzw9tcdms9k8m3dzkrojtno8cs8b8854 X-Rspam-User: X-HE-Tag: 1730392851-943992 X-HE-Meta: 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 ER0qhSid 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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: List-Subscribe: List-Unsubscribe: Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by: syzbot+7402e6c8042635c93ead@syzkaller.appspotmail.com Tested-by: syzbot+7402e6c8042635c93ead@syzkaller.appspotmail.com Tested on: commit: cffcc47b mm/mlock: set the correct prev on failure git tree: git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git/ mm-hotfixes-unstable console output: https://syzkaller.appspot.com/x/log.txt?x=1304a630580000 kernel config: https://syzkaller.appspot.com/x/.config?x=6648774f7c39d413 dashboard link: https://syzkaller.appspot.com/bug?extid=7402e6c8042635c93ead compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Note: no patches were applied. Note: testing is done by a robot and is best-effort only.