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Fri, 11 Oct 2024 08:17:02 -0700 (PDT) Date: Fri, 11 Oct 2024 08:17:02 -0700 In-Reply-To: <0000000000005d16fe061fcaf338@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6709416e.050a0220.4cbc0.000b.GAE@google.com> Subject: Re: [syzbot] [mm?] INFO: task hung in hugetlb_wp From: syzbot To: akpm@linux-foundation.org, kasan-dev@googlegroups.com, keescook@chromium.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mcgrof@kernel.org, mhiramat@kernel.org, mhocko@suse.com, mike.kravetz@oracle.com, muchun.song@linux.dev, syzkaller-bugs@googlegroups.com, torvalds@linux-foundation.org, vbabka@suse.cz Content-Type: text/plain; charset="UTF-8" X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 7D0341C0009 X-Stat-Signature: 94459fnq9eyh7jiu6f34ckq7wygwj9ck X-HE-Tag: 1728659822-516798 X-HE-Meta: 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 fGjiHSV/ 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 3AN8w10B VOjdMcOdKQp7W27uxzF/6ZPOMu04ZgNkVlN5cmDrs+bwWd2gBdg4TEop7LjBxvSyVAk55V42CWxAMt5aES2/Q3msmdHW4Il3G6zzAVdHhYHUQ7sWKapQyQ== 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: syzbot has bisected this issue to: commit 3db978d480e2843979a2b56f2f7da726f2b295b2 Author: Vlastimil Babka Date: Mon Jun 8 04:40:24 2020 +0000 kernel/sysctl: support setting sysctl parameters from kernel command line bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14c7f380580000 start commit: b983b271662b misc: sgi-gru: Don't disable preemption in GR.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=16c7f380580000 console output: https://syzkaller.appspot.com/x/log.txt?x=12c7f380580000 kernel config: https://syzkaller.appspot.com/x/.config?x=fb6ea01107fa96bd dashboard link: https://syzkaller.appspot.com/bug?extid=c391aebb8e8e8cd95c55 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=118c6fd0580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16b6a040580000 Reported-by: syzbot+c391aebb8e8e8cd95c55@syzkaller.appspotmail.com Fixes: 3db978d480e2 ("kernel/sysctl: support setting sysctl parameters from kernel command line") For information about bisection process see: https://goo.gl/tpsmEJ#bisection