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Sat, 30 Sep 2023 22:20:49 -0700 (PDT) Date: Sat, 30 Sep 2023 22:20:49 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000001dd5e20606a0d265@google.com> Subject: [syzbot] [mm?] WARNING in page_vma_mapped_walk From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: B23504000B X-Rspam-User: X-Rspamd-Server: rspam02 X-Stat-Signature: uiu3brhnnmmnrdnbdsybt9nf9baik8tb X-HE-Tag: 1696137650-441093 X-HE-Meta: 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 z95at68m 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 Q6Kt886D g3ixMrGz8xc5cG3AYemToUwUdABTXhOIlUfNu27GOswovKlBQ/a9WXMLQDD6ZL+HXwn23G2QTpFst8v0oYQrY997g/zxrGEHqeBvPNsV+FA8zIgtAPJzfxS1iJ0qnfljBDZY/K71qOJlLywf/h8jo/3ApF4+aJTtG13uWzzsa6ZMo3zDAbFYXm9QW48UqYV5bBLM7nDEi0z2G7omt9lM9ODXQIcclVGS+gcvJhuzgBhaSeMKv8iyjZpO1XexlOP59XoRcI45AR6wxZGJCeToLlI4EtKI7RV0SsQS9p0MzIbgDSEUBjd6lXBrroSU7hWoVgt0GiMIDikPm2DURAQhU5gskVa5r50Qx0gnwtUnNSY= 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: Hello, syzbot found the following issue on: HEAD commit: df964ce9ef9f Add linux-next specific files for 20230929 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=17fed5e1680000 kernel config: https://syzkaller.appspot.com/x/.config?x=880c828d75e38e1b dashboard link: https://syzkaller.appspot.com/bug?extid=dcf3f48f4bfe47a2f80a 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/fe7244c6057d/disk-df964ce9.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/48cdc7f3b2c0/vmlinux-df964ce9.xz kernel image: https://storage.googleapis.com/syzbot-assets/ce7c93a66da9/bzImage-df964ce9.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+dcf3f48f4bfe47a2f80a@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8436 at include/linux/hugetlb.h:1289 hugetlb_walk include/linux/hugetlb.h:1289 [inline] WARNING: CPU: 1 PID: 8436 at include/linux/hugetlb.h:1289 page_vma_mapped_walk+0x1e85/0x27a0 mm/page_vma_mapped.c:199 Modules linked in: CPU: 1 PID: 8436 Comm: syz-executor.0 Not tainted 6.6.0-rc3-next-20230929-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 RIP: 0010:hugetlb_walk include/linux/hugetlb.h:1289 [inline] RIP: 0010:page_vma_mapped_walk+0x1e85/0x27a0 mm/page_vma_mapped.c:199 Code: 00 be ff ff ff ff 48 81 c7 a0 01 00 00 e8 33 71 77 08 31 ff 89 c5 89 c6 e8 78 b5 b9 ff 85 ed 0f 85 64 f7 ff ff e8 fb b9 b9 ff <0f> 0b e9 58 f7 ff ff e8 ef b9 b9 ff 48 89 ef 48 81 e7 00 f0 ff ff RSP: 0000:ffffc90004f0f6b8 EFLAGS: 00010283 RAX: 000000000001b5c2 RBX: ffff88801eca2710 RCX: ffffc9000a691000 RDX: 0000000000040000 RSI: ffffffff81ce9bc5 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 000000000000002f R12: 0000000000200000 R13: ffffffff92312af8 R14: ffffc90004f0f8c0 R15: ffffffff92312b90 FS: 00007f489c7ce6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31a24000 CR3: 0000000017fc0000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: try_to_migrate_one+0x4a2/0x28b0 mm/rmap.c:1929 rmap_walk_anon+0x225/0x570 mm/rmap.c:2501 rmap_walk mm/rmap.c:2578 [inline] rmap_walk mm/rmap.c:2573 [inline] try_to_migrate+0x2b6/0x300 mm/rmap.c:2230 unmap_and_move_huge_page mm/migrate.c:1421 [inline] migrate_hugetlbs mm/migrate.c:1547 [inline] migrate_pages+0xa42/0x27c0 mm/migrate.c:1901 migrate_to_node mm/mempolicy.c:1097 [inline] do_migrate_pages+0x2e9/0x670 mm/mempolicy.c:1196 kernel_migrate_pages+0x59b/0x780 mm/mempolicy.c:1682 __do_sys_migrate_pages mm/mempolicy.c:1701 [inline] __se_sys_migrate_pages mm/mempolicy.c:1697 [inline] __x64_sys_migrate_pages+0x96/0x100 mm/mempolicy.c:1697 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f489ba7cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f489c7ce0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000100 RAX: ffffffffffffffda RBX: 00007f489bb9c050 RCX: 00007f489ba7cae9 RDX: 0000000020000000 RSI: 0000000000000004 RDI: 0000000000000000 RBP: 00007f489bac847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020000080 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f489bb9c050 R15: 00007ffcda957698 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup