Hello, syzbot found the following issue on: HEAD commit: b015dcd62b86 Merge tag 'for-5.18/parisc-4' of git://git.ke.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=12a4dccef00000 kernel config: https://syzkaller.appspot.com/x/.config?x=edaa7ad763884c40 dashboard link: https://syzkaller.appspot.com/bug?extid=544cd0e72903f79d599d compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+544cd0e72903f79d599d@xxxxxxxxxxxxxxxxxxxxxxxxx FS-Cache: 1 == 0 is false ------------[ cut here ]------------ kernel BUG at fs/fscache/cookie.c:957! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 2 PID: 3705 Comm: syz-executor.3 Not tainted 5.18.0-rc7-syzkaller-00119-gb015dcd62b86 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:__fscache_relinquish_cookie.cold+0xee/0x107 fs/fscache/cookie.c:957 Code: c1 ea 03 0f b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 14 48 63 75 04 31 d2 48 c7 c7 40 cc df 89 e8 57 99 fc ff <0f> 0b 4c 89 ef e8 24 12 97 f8 eb e2 48 89 ef e8 1a 12 97 f8 e9 72 RSP: 0000:ffffc90002f17b90 EFLAGS: 00010282 RAX: 0000000000000019 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff888042fde1c0 RSI: ffffffff815f4a18 RDI: fffff520005e2f64 RBP: ffff888069794040 R08: 0000000000000019 R09: 0000000000000001 R10: ffffffff815ef3ee R11: 0000000000000000 R12: ffff888069794130 R13: ffff888069794044 R14: ffff88807894aab0 R15: ffff88801d84aa00 FS: 000055555661b400(0000) GS:ffff88802cc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000451437 CR3: 00000000654f7000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> fscache_relinquish_cookie include/linux/fscache.h:306 [inline] v9fs_evict_inode+0x1b1/0x2b0 fs/9p/vfs_inode.c:399 evict+0x2ed/0x6b0 fs/inode.c:664 dispose_list+0x117/0x1e0 fs/inode.c:697 evict_inodes+0x350/0x450 fs/inode.c:747 generic_shutdown_super+0xab/0x400 fs/super.c:451 kill_anon_super+0x36/0x60 fs/super.c:1056 v9fs_kill_super+0x39/0x90 fs/9p/vfs_super.c:223 deactivate_locked_super+0x94/0x160 fs/super.c:332 deactivate_super+0xad/0xd0 fs/super.c:363 cleanup_mnt+0x3a2/0x540 fs/namespace.c:1186 task_work_run+0xdd/0x1a0 kernel/task_work.c:164 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:169 [inline] exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:294 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7ff00688a557 Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 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:00007fff46e14f08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007ff00688a557 RDX: 00007fff46e14fd9 RSI: 000000000000000a RDI: 00007fff46e14fd0 RBP: 00007fff46e14fd0 R08: 00000000ffffffff R09: 00007fff46e14da0 R10: 000055555661c903 R11: 0000000000000246 R12: 00007ff0068e21f8 R13: 00007fff46e16090 R14: 000055555661c810 R15: 00007fff46e160d0 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__fscache_relinquish_cookie.cold+0xee/0x107 fs/fscache/cookie.c:957 Code: c1 ea 03 0f b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 14 48 63 75 04 31 d2 48 c7 c7 40 cc df 89 e8 57 99 fc ff <0f> 0b 4c 89 ef e8 24 12 97 f8 eb e2 48 89 ef e8 1a 12 97 f8 e9 72 RSP: 0000:ffffc90002f17b90 EFLAGS: 00010282 RAX: 0000000000000019 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff888042fde1c0 RSI: ffffffff815f4a18 RDI: fffff520005e2f64 RBP: ffff888069794040 R08: 0000000000000019 R09: 0000000000000001 R10: ffffffff815ef3ee R11: 0000000000000000 R12: ffff888069794130 R13: ffff888069794044 R14: ffff88807894aab0 R15: ffff88801d84aa00 FS: 000055555661b400(0000) GS:ffff88802cc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff131d09b8 CR3: 00000000654f7000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. -- Linux-cachefs mailing list Linux-cachefs@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/linux-cachefs
