ci2 starts bisection 2023-03-14 20:19:13.194014442 +0000 UTC m=+42023.918077188 bisecting fixing commit since f883675bf6522b52cd75dc3de791680375961769 building syzkaller on cc0f9968db1abe397e6c93bf4f5dff51be20f914 ensuring issue is reproducible on original commit f883675bf6522b52cd75dc3de791680375961769 testing commit f883675bf6522b52cd75dc3de791680375961769 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: ced38e6351316f370420951ed7654a306a0fe561571d0325f590d0660655473b all runs: crashed: kernel BUG in btrfs_csum_one_bio testing current HEAD 4979bf8668255a67449714653314662fbc7e5bdb testing commit 4979bf8668255a67449714653314662fbc7e5bdb gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: b27fb53b6addad814c15adfbcf30a575e775ed0008f15662979aad48ec18f845 all runs: crashed: kernel BUG in btrfs_csum_one_bio revisions tested: 2, total time: 50m1.355477323s (build: 35m44.407292131s, test: 12m6.666287063s) the crash still happens on HEAD commit msg: Merge tag 'docs-6.3-fixes' of git://git.lwn.net/linux crash: kernel BUG in btrfs_csum_one_bio RSP: 002b:00007fd7f408c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fd7f33abf80 RCX: 00007fd7f328c0c9 RDX: 000000000000fea7 RSI: 00000000200001c0 RDI: 0000000000000004 RBP: 00007fd7f408c1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffe82b8b3af R14: 00007fd7f408c300 R15: 0000000000022000 ------------[ cut here ]------------ kernel BUG at fs/btrfs/file-item.c:849! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 6025 Comm: syz-executor.0 Not tainted 6.3.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 RIP: 0010:btrfs_csum_one_bio+0x1107/0x1150 Code: 54 f3 ff ff e8 8a 21 94 fe 48 8b 4c 24 18 e9 45 f3 ff ff 48 c7 c7 c0 1a 20 8c 4c 89 e6 48 89 da e8 0e 27 d8 00 e9 fe f0 ff ff <0f> 0b 44 89 e9 80 e1 07 38 c1 0f 8c a8 fd ff ff be 08 00 00 00 4c RSP: 0018:ffffc90005066e40 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000400140 RCX: 00000000fffbffff RDX: 0000000000000000 RSI: 1ffff1100db0eae5 RDI: ffff88806d87572c RBP: ffffc90005067170 R08: 0000000000000dc0 R09: 00000000ffffffff R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000000000000 R14: ffff888027f1f6f0 R15: dffffc0000000000 FS: 00007fd7f408c700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4984ae5690 CR3: 0000000027cd0000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btrfs_submit_bio+0x7cb/0xee0 submit_one_bio+0x269/0x3a0 extent_writepages+0xff2/0x1380 do_writepages+0x33d/0x5c0 filemap_fdatawrite_wbc+0xe1/0x140 filemap_fdatawrite_range+0x176/0x200 start_ordered_ops+0xd8/0x1d0 btrfs_sync_file+0x38c/0xe50 btrfs_do_write_iter+0xa77/0xeb0 vfs_write+0x7be/0xb10 ksys_write+0x122/0x200 do_syscall_64+0x41/0xc0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fd7f328c0c9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd7f408c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fd7f33abf80 RCX: 00007fd7f328c0c9 RDX: 000000000000fea7 RSI: 00000000200001c0 RDI: 0000000000000004 RBP: 00007fd7f408c1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffe82b8b3af R14: 00007fd7f408c300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:btrfs_csum_one_bio+0x1107/0x1150 Code: 54 f3 ff ff e8 8a 21 94 fe 48 8b 4c 24 18 e9 45 f3 ff ff 48 c7 c7 c0 1a 20 8c 4c 89 e6 48 89 da e8 0e 27 d8 00 e9 fe f0 ff ff <0f> 0b 44 89 e9 80 e1 07 38 c1 0f 8c a8 fd ff ff be 08 00 00 00 4c RSP: 0018:ffffc90005066e40 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000400140 RCX: 00000000fffbffff RDX: 0000000000000000 RSI: 1ffff1100db0eae5 RDI: ffff88806d87572c RBP: ffffc90005067170 R08: 0000000000000dc0 R09: 00000000ffffffff R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000000000000 R14: ffff888027f1f6f0 R15: dffffc0000000000 FS: 00007fd7f408c700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000560f197f6680 CR3: 0000000027cd0000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400