ci2 starts bisection 2023-04-25 22:27:59.4726653 +0000 UTC m=+34777.769940214 bisecting fixing commit since 88603b6dc419445847923fcb7fe5080067a30f98 building syzkaller on ab32d50881df9f96f2af301aadca62ad00b7e099 ensuring issue is reproducible on original commit 88603b6dc419445847923fcb7fe5080067a30f98 testing commit 88603b6dc419445847923fcb7fe5080067a30f98 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: cb645711f538c7932a23e47d79515de851c98893ea286480c2705b17b6562f97 all runs: crashed: kernel BUG in reiserfs_cut_from_item testing current HEAD 736b378b29d89c8c3567fa4b2e948be5568aebb8 testing commit 736b378b29d89c8c3567fa4b2e948be5568aebb8 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 2dfb167d432e0ff1adf1b4e895c3eebd3e03cd798ea8f6e4efe050aa1eb61f85 all runs: crashed: kernel BUG in reiserfs_cut_from_item revisions tested: 2, total time: 44m47.292202596s (build: 36m49.64971815s, test: 7m18.395684088s) the crash still happens on HEAD commit msg: Merge tag 'slab-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab crash: kernel BUG in reiserfs_cut_from_item | 5| *3.6* [2 6 0x0 SD], item_len 44, item_location 340, free_space(entry_count) 65535 | mode | size | nlinks | first direct | mtime 0100000 | 24 | 1 | 0 | 1682464355 =================================================================== REISERFS panic (device loop0): PAP-5580 reiserfs_cut_from_item: item to convert does not exist ([2 6 0x1 IND]) ------------[ cut here ]------------ kernel BUG at fs/reiserfs/prints.c:390! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5430 Comm: syz-executor.0 Not tainted 6.3.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 RIP: 0010:__reiserfs_panic+0x116/0x120 Code: c7 c1 40 b2 db 89 48 0f 44 c8 48 0f 44 d8 48 c7 c7 00 b3 db 89 4c 89 fe 48 89 da 4d 89 f0 49 c7 c1 a0 28 81 90 e8 aa 32 8c 07 <0f> 0b 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 55 48 89 e5 41 57 41 56 RSP: 0018:ffffc9000467f2e0 EFLAGS: 00010246 RAX: 000000000000006e RBX: ffffffff89dbd100 RCX: ee01960225541900 RDX: 0000000000000001 RSI: ffffffff8a19b100 RDI: 0000000000000001 RBP: ffffc9000467f3b0 R08: dffffc0000000000 R09: fffff520008cfe19 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920008cff38 R13: 0000000000000004 R14: ffffffff8b61797d R15: ffff88801cc486a8 FS: 0000555556de2400(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe41ef95ed8 CR3: 000000001c6a5000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: reiserfs_cut_from_item+0x1c00/0x1fb0 reiserfs_do_truncate+0x85f/0x1260 reiserfs_truncate_file+0x2e4/0x610 reiserfs_file_release+0x460/0x6e0 __fput+0x33f/0x720 task_work_run+0x20a/0x290 exit_to_user_mode_loop+0xd1/0xf0 exit_to_user_mode_prepare+0xb1/0x140 syscall_exit_to_user_mode+0x54/0x270 do_syscall_64+0x4d/0xc0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f32dee3df5b Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007ffd8ec0ae90 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00007f32dee3df5b RDX: 00007f32dea01608 RSI: ffffffffffffffff RDI: 0000000000000005 RBP: 00007f32defad980 R08: 0000000000000000 R09: 00007f32dea00000 R10: 00007f32dea01610 R11: 0000000000000293 R12: 0000000000010538 R13: 00007ffd8ec0af90 R14: 00007f32defabf80 R15: 0000000000000032 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__reiserfs_panic+0x116/0x120 Code: c7 c1 40 b2 db 89 48 0f 44 c8 48 0f 44 d8 48 c7 c7 00 b3 db 89 4c 89 fe 48 89 da 4d 89 f0 49 c7 c1 a0 28 81 90 e8 aa 32 8c 07 <0f> 0b 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 55 48 89 e5 41 57 41 56 RSP: 0018:ffffc9000467f2e0 EFLAGS: 00010246 RAX: 000000000000006e RBX: ffffffff89dbd100 RCX: ee01960225541900 RDX: 0000000000000001 RSI: ffffffff8a19b100 RDI: 0000000000000001 RBP: ffffc9000467f3b0 R08: dffffc0000000000 R09: fffff520008cfe19 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920008cff38 R13: 0000000000000004 R14: ffffffff8b61797d R15: ffff88801cc486a8 FS: 0000555556de2400(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcc03d2f440 CR3: 000000001c6a5000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400