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Thu, 01 Aug 2024 10:57:02 -0700 (PDT) Date: Thu, 01 Aug 2024 10:57:02 -0700 In-Reply-To: <0000000000006923bb06178ce04a@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000001fdcda061ea2f073@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-Stat-Signature: 34awi4qc8tncuxqhj8a694w57u95hfc6 X-Rspamd-Queue-Id: 80E96160008 X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1722535023-329873 X-HE-Meta: U2FsdGVkX1+zqIPYeft0ccok55NzXrtWS3tKV2eO6EessiGf9GlBJnXX5eBSczTb4PY57GwtZtG/G7KrDEGsj334fMIRvLE5cWFEI4/qPfRXXiwFF0kqibaRlDNpaTMi645CsmtSzn7yMhGNq4rBuug2QN6IqW/WvCh5PEjHG0V2hnyvBGytrcXIir29nToqlMtK1C3aAG6+JNP7qiZZmIWu6ar/2ffgnTGyas9gPvqe/GI++52b0DfjJ6cxbi7HCOmFsGRD80ehf4wruD2GQNjKwjrc8bMJgHteMjk7wkwdIcyD8laN+nLxWrD8uinJnl0FSoA6W4NvsEtOTL4CVi0TPu/3D2DWKwOLlE+LecKcaywhiKDnW3kWg8QBGP//uGC8iIC+7JxRnXL7MFiC3pRySPDtCnGvRaupp/lwvC1tF6d1uilgW70JL64MVvNyGdUb8o+ox+dSYGIb0KFGGUJ9Fip8Qgk3K4yZZUwPpYFEqg/jkQHk9ziQDXBMNs/AXPX/tm0ujri+NuWSM8ULj9xfXvd0TDUcgfph3lQ7TzJ+u2540ylJVKgjzfRvfwpyuWcbUZd23PZEL5PXHdhHf9xI6Q6xXlrn4AhzA+ChU4C8NdyeM8tV0yZKSiarbgguRMp4rLOptxICMv8CR7B3qAudEvDmMvazTcKkWSfERl3+cBKl0pHuF2OzVrobKSXxTIsKYsO1DKIFiLJDkFxJkbgbcQPnQdq+yWT8tb1yRoiQMhziPvrVSVhHkk5roQ0myVitC2QJXujzB9a2fl8cHYxInUrD76sUQhW7RbaC7IbRSl3qI1gYbOaXbgzAvDPKMkowstaViMJbpCKgk1ytCoKVMX//ejBfj94Nqt2Y4c27G7BLWUPqAH0pkfvNB+Xt6h/RjMIx9QWtzErx4fqvXnujMuet0bl9vW3DSfi9FA3ku17X6QBdn59FXDDE64vsC3Z2CSY4n/lxwzIM9DS Ym8HR6A7 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 mCQ1mkzD GqxDoRifQIkcR39MONexVpFfnPafPgMIVVC3Ri+OufJYZtDbouauLUXh/1G66Zixh5ukR0XjGHvylDc5dXHhAKtJsrl4o9+u 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 ef5b6a542b1dbb718226a5f8208be09ef405983d Author: Paolo Bonzini Date: Wed Nov 8 09:40:35 2023 +0000 selftests: kvm/s390x: use vm_create_barebones() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14071cd3980000 start commit: e67572cd2204 Linux 6.9-rc6 git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=16071cd3980000 console output: https://syzkaller.appspot.com/x/log.txt?x=12071cd3980000 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 Reported-by: syzbot+5ea2845f44caa77f5543@syzkaller.appspotmail.com Fixes: ef5b6a542b1d ("selftests: kvm/s390x: use vm_create_barebones()") For information about bisection process see: https://goo.gl/tpsmEJ#bisection