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Thu, 15 Aug 2024 09:10:03 -0700 (PDT) Date: Thu, 15 Aug 2024 09:10:03 -0700 In-Reply-To: <0000000000006923bb06178ce04a@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000004754de061fbb1356@google.com> Subject: Re: [syzbot] [mm?] WARNING in hpage_collapse_scan_pmd (2) From: syzbot To: akpm@linux-foundation.org, axboe@kernel.dk, borntraeger@linux.ibm.com, david@redhat.com, frankja@linux.ibm.com, imbrenda@linux.ibm.com, io-uring@vger.kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org, pbonzini@redhat.com, peterx@redhat.com, shuah@kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 17B01180031 X-Stat-Signature: bu8owrydokh53j8um4gh3m433iqn74st X-Rspamd-Server: rspam09 X-Rspam-User: X-HE-Tag: 1723738203-313334 X-HE-Meta: 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 1+5VF2Bx 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 L9m29rfi hrOCyiaXsKYpx4QAjC4zhT5cQmH9Rv4kSyWsw2ytIhIu8a/yq+LfuIkHfgUHv3efyNn+O0D5++8wgY8wG5fQxeZyt3zMA11hBu77DOJqNmRP5nlbG7XwJw== X-Bogosity: Ham, tests=bogofilter, spamicity=0.001344, 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 suspects this issue was fixed by commit: commit c88033efe9a391e72ba6b5df4b01d6e628f4e734 Author: Peter Xu Date: Mon Apr 22 13:33:11 2024 +0000 mm/userfaultfd: reset ptes when close() for wr-protected ones bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12f2396b980000 start commit: e67572cd2204 Linux 6.9-rc6 git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=3310e643b6ef5d69 dashboard link: https://syzkaller.appspot.com/bug?extid=5ea2845f44caa77f5543 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10874a40980000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: mm/userfaultfd: reset ptes when close() for wr-protected ones For information about bisection process see: https://goo.gl/tpsmEJ#bisection