XFS (loop0): SB sanity check failed XFS (loop6): Invalid superblock magic number XFS (loop0): Metadata corruption detected at xfs_sb_read_verify+0x3df/0x4e0 fs/xfs/libxfs/xfs_sb.c:637, xfs_sb block 0xffffffffffffffff XFS (loop0): Unmount and run xfs_repair XFS (loop0): First 128 bytes of corrupted metadata buffer: WARNING: CPU: 1 PID: 17923 at kernel/workqueue.c:4155 destroy_workqueue+0x2ed/0x9d0 kernel/workqueue.c:4155 00000000b3b90e33: 58 46 53 42 00 00 10 97 ff ff ff 00 00 00 00 52 XFSB...........R Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 17923 Comm: syz-executor6 Not tainted 4.18.0-rc4-next-20180710+ #3 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 000000003a7139fc: 18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113 000000001a0f378b: 98 4f 0b 50 42 b6 4b 06 bc 86 cb a3 e6 cc 3f 80 .O.PB.K.......?. panic+0x238/0x4e7 kernel/panic.c:184 000000002683d8d9: 00 00 00 00 00 00 00 40 00 00 00 00 00 00 00 80 .......@........ 0000000083966451: 00 00 00 00 00 00 00 81 00 00 00 00 00 00 00 82 ................ __warn.cold.8+0x163/0x1ba kernel/panic.c:536 00000000fd24de2d: 00 00 00 01 00 00 10 00 00 00 00 01 00 00 00 00 ................ report_bug+0x252/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296 0000000001a0b75c: 00 00 06 c0 b4 a4 02 00 01 00 00 10 00 00 00 00 ................ 00000000388f22aa: 00 00 00 00 00 00 00 00 0c 09 08 04 0c 00 00 00 ................ XFS (loop0): SB validate failed with error -117. do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:996 RIP: 0010:destroy_workqueue+0x2ed/0x9d0 kernel/workqueue.c:4155 Code: 0f 8e 86 06 00 00 48 8b 85 30 fe ff ff bf 01 00 00 00 8b 58 18 89 de e8 81 f5 2b 00 83 fb 01 0f 8e 91 00 00 00 e8 63 f4 2b 00 <0f> 0b e8 5c f4 2b 00 48 8b bd 18 fe ff ff e8 a0 6a 4c 06 e8 fb f2 RSP: 0018:ffff8801ab7ef750 EFLAGS: 00010212 RAX: 0000000000040000 RBX: 0000000000000002 RCX: ffffc90002417000 RDX: 0000000000018516 RSI: ffffffff8150870d RDI: 0000000000000005 RBP: ffff8801ab7ef940 R08: ffff88019d726500 R09: ffffed0035f04504 R10: ffff8801ab7ef740 R11: ffff8801af822827 R12: 000000000000000f R13: dffffc0000000000 R14: ffff8801af822800 R15: 0000000000000000 xfs_destroy_mount_workqueues+0x171/0x1c0 fs/xfs/xfs_super.c:924 xfs_fs_fill_super+0x9bb/0x16a0 fs/xfs/xfs_super.c:1767 mount_bdev+0x314/0x3e0 fs/super.c:1344 xfs_fs_mount+0x3c/0x50 fs/xfs/xfs_super.c:1816 legacy_get_tree+0x118/0x440 fs/fs_context.c:659 vfs_get_tree+0x1cb/0x5c0 fs/super.c:1743 do_new_mount fs/namespace.c:2567 [inline] do_mount+0x6c1/0x1fb0 fs/namespace.c:2889 ksys_mount+0x12d/0x140 fs/namespace.c:3105 __do_sys_mount fs/namespace.c:3119 [inline] __se_sys_mount fs/namespace.c:3116 [inline] __x64_sys_mount+0xbe/0x150 fs/namespace.c:3116 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45885a Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 dd 8f fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 ba 8f fb ff c3 66 0f 1f 84 00 00 00 00 00 RSP: 002b:00007fc283ea2a88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fc283ea2b30 RCX: 000000000045885a RDX: 00007fc283ea2ad0 RSI: 0000000020000100 RDI: 00007fc283ea2af0 RBP: 0000000020000100 R08: 00007fc283ea2b30 R09: 00007fc283ea2ad0 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000013 R13: 0000000000000000 R14: 00000000004d3fe8 R15: 0000000000000000 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..