000000000e063233: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000000a5323ac3: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000000dada9169: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000000885ff249: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0000000094215173: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ INFO: task syz-executor.4:8158 blocked for more than 140 seconds. XFS (loop4): metadata I/O error in "xfs_trans_read_buf_map" at daddr 0x4 len 1 error 117 Not tainted 4.19.211-syzkaller #0 XFS (loop4): page discard on page 000000000c6bea6f, inode 0x29, offset 5656576. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. XFS (loop4): Metadata corruption detected at xfs_allocbt_verify+0x327/0x4a0 fs/xfs/libxfs/xfs_alloc_btree.c:329, xfs_allocbt block 0x4 syz-executor.4 D24216 8158 1 0x00000004 XFS (loop4): Unmount and run xfs_repair Call Trace: XFS (loop4): First 128 bytes of corrupted metadata buffer: 00000000d24d13e1: 07 42 54 42 00 00 00 01 ff ff ff ff ff ff ff ff .BTB............ 000000007a7ca6db: 00 00 00 42 00 00 7f be 00 00 00 42 00 00 7f be ...B.......B.... 0000000010c5ae85: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0000000065212d07: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000000c538b877: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000000c03d0307: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 000000002ceb88c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000000ff06c2a3: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ XFS (loop4): metadata I/O error in "xfs_trans_read_buf_map" at daddr 0x4 len 1 error 117 XFS (loop4): page discard on page 0000000067c88f02, inode 0x29, offset 5660672. XFS (loop4): Metadata corruption detected at xfs_allocbt_verify+0x327/0x4a0 fs/xfs/libxfs/xfs_alloc_btree.c:329, xfs_allocbt block 0x4 context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 XFS (loop4): Unmount and run xfs_repair XFS (loop4): First 128 bytes of corrupted metadata buffer: 00000000fc1c831e: 07 42 54 42 00 00 00 01 ff ff ff ff ff ff ff ff .BTB............ schedule+0x8d/0x1b0 kernel/sched/core.c:3561 00000000ef550aad: 00 00 00 42 00 00 7f be 00 00 00 42 00 00 7f be ...B.......B.... wb_wait_for_completion+0x175/0x1f0 fs/fs-writeback.c:222 0000000074befe79: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0000000075ea7d87: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000000d743d1f5: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ sync_inodes_sb+0x19d/0x9a0 fs/fs-writeback.c:2459 00000000ab830c9f: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 000000009a664622: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000000bee26582: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ XFS (loop4): metadata I/O error in "xfs_trans_read_buf_map" at daddr 0x4 len 1 error 117 XFS (loop4): page discard on page 000000003f8c496f, inode 0x29, offset 5664768. __sync_filesystem fs/sync.c:34 [inline] sync_filesystem+0x15c/0x250 fs/sync.c:67 XFS (loop4): Metadata corruption detected at xfs_allocbt_verify+0x327/0x4a0 fs/xfs/libxfs/xfs_alloc_btree.c:329, xfs_allocbt block 0x4 generic_shutdown_super+0x70/0x370 fs/super.c:442 XFS (loop4): Unmount and run xfs_repair kill_block_super+0x97/0xf0 fs/super.c:1185 XFS (loop4): First 128 bytes of corrupted metadata buffer: deactivate_locked_super+0x94/0x160 fs/super.c:329 00000000edb7294a: 07 42 54 42 00 00 00 01 ff ff ff ff ff ff ff ff .BTB............ deactivate_super+0x174/0x1a0 fs/super.c:360 00000000c4a85d99: 00 00 00 42 00 00 7f be 00 00 00 42 00 00 7f be ...B.......B.... 00000000ca842492: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0000000005de0f61: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098 00000000ee98d02b: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ task_work_run+0x148/0x1c0 kernel/task_work.c:113 000000007f3601bb: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 000000003c15d5a8: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 00000000b3e5a6a8: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ entry_SYSCALL_64_after_hwframe+0x49/0xbe XFS (loop4): metadata I/O error in "xfs_trans_read_buf_map" at daddr 0x4 len 1 error 117 RIP: 0033:0x7fd5551cd547 XFS (loop4): page discard on page 0000000048ca0f6a, inode 0x29, offset 5668864. Code: Bad RIP value. XFS (loop4): Metadata corruption detected at xfs_allocbt_verify+0x327/0x4a0 fs/xfs/libxfs/xfs_alloc_btree.c:329, xfs_allocbt block 0x4 RSP: 002b:00007ffc786db498 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 XFS (loop4): Unmount and run xfs_repair RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd5551cd547 XFS (loop4): First 128 bytes of corrupted metadata buffer: RDX: 00007ffc786db56a RSI: 000000000000000a RDI: 00007ffc786db560 000000004a06c46f: 07 42 54 42 00 00 00 01 ff ff ff ff ff ff ff ff .BTB............ RBP: 00007ffc786db560 R08: 00000000ffffffff R09: 00007ffc786db330 000000006dd6db1a: 00 00 00 42 00 00 7f be 00 00 00 42 00 00 7f be ...B.......B.... R10: 00005555558b1903 R11: 0000000000000246 R12: 00007fd555226b24 000000003d55f233: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ R13: 00007ffc786dc620 R14: 00005555558b1810 R15: 00007ffc786dc660 00000000751000b6: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ Showing all locks held in the system: 0000000001f0d217: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 1 lock held by khungtaskd/1569: 000000007326e75e: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ #0: 00000000403eec88 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 00000000240425d6: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 1 lock held by in:imklog/7834: 0000000088f2db88: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ #0: 0000000089c87ae9 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 XFS (loop4): metadata I/O error in "xfs_trans_read_buf_map" at daddr 0x4 len 1 error 117 2 locks held by agetty/8056: XFS (loop4): page discard on page 00000000cb8e04e1, inode 0x29, offset 5672960. #0: 000000009490a935 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 XFS (loop4): Metadata corruption detected at xfs_allocbt_verify+0x327/0x4a0 fs/xfs/libxfs/xfs_alloc_btree.c:329, xfs_allocbt block 0x4 #1: 0000000000dd28d5 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1950 drivers/tty/n_tty.c:2154 XFS (loop4): Unmount and run xfs_repair 2 locks held by syz-executor.4/8158: XFS (loop4): First 128 bytes of corrupted metadata buffer: #0: 000000000a832c63 (&type->s_umount_key#54){++++}, at: deactivate_super+0x16c/0x1a0 fs/super.c:359 000000009a5a3bb6: 07 42 54 42 00 00 00 01 ff ff ff ff ff ff ff ff .BTB............ #1: 0000000098b6f545 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000098b6f545 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 0000000045b812e8: 00 00 00 42 00 00 7f be 00 00 00 42 00 00 7f be ...B.......B.... 5 locks held by kworker/1:0/8359: 00000000ace93c95: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 4 locks held by kworker/u4:6/9412: 0000000072955024: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ #0: 0000000028374a2e ((wq_completion)"writeback"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 000000001fbd6259: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ #1: 0000000001101753 ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 0000000085f2ee7a: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ #2: 000000002e51e5d6 (sb_internal#3){.+.+}, at: sb_start_intwrite include/linux/fs.h:1626 [inline] #2: 000000002e51e5d6 (sb_internal#3){.+.+}, at: xfs_trans_alloc+0x4fc/0x700 fs/xfs/xfs_trans.c:271 000000000cb096ae: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ #3: 000000002675ad49 (&xfs_nondir_ilock_class){++++}, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline] #3: 000000002675ad49 (&xfs_nondir_ilock_class){++++}, at: xfs_ilock+0x2b6/0x440 fs/xfs/xfs_inode.c:199 000000002e40ef2b: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ ============================================= XFS (loop4): metadata I/O error in "xfs_trans_read_buf_map" at daddr 0x4 len 1 error 117 NMI backtrace for cpu 0 XFS (loop4): page discard on page 000000009d50ac0c, inode 0x29, offset 5677056. CPU: 0 PID: 1569 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 XFS (loop4): Metadata corruption detected at xfs_allocbt_verify+0x327/0x4a0 fs/xfs/libxfs/xfs_alloc_btree.c:329, xfs_allocbt block 0x4 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 XFS (loop4): Unmount and run xfs_repair Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62 XFS (loop4): First 128 bytes of corrupted metadata buffer: trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 kernel/hung_task.c:287 00000000cca52d37: 07 42 54 42 00 00 00 01 ff ff ff ff ff ff ff ff .BTB............ kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 00000000f0f77a6d: 00 00 00 42 00 00 7f be 00 00 00 42 00 00 7f be ...B.......B.... Sending NMI from CPU 0 to CPUs 1: 0000000031f9caf1: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ NMI backtrace for cpu 1 CPU: 1 PID: 8359 Comm: kworker/1:0 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: xfs-buf/loop4 xfs_buf_ioend_work RIP: 0010:__sanitizer_cov_trace_pc+0x22/0x50 kernel/kcov.c:101 Code: 90 90 90 90 90 90 90 90 48 8b 34 24 65 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 00 01 1f 00 75 2b 8b 90 60 13 00 00 <83> fa 02 75 20 48 8b 88 68 13 00 00 8b 80 64 13 00 00 48 8b 11 48 RSP: 0018:ffff8880ba107ef0 EFLAGS: 00000046 RAX: ffff888097488140 RBX: 0000000000000001 RCX: ffffffff83771e23 RDX: 0000000000000000 RSI: ffffffff83771e2c RDI: 0000000000000005 RBP: ffffffff88b3e160 R08: ffffffff8c665058 R09: 0000000000000000 R10: 0000000000000005 R11: ffffffff8c66505b R12: 0000000000000001 R13: ffffffff8868d9c0 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f45c5dab000 CR3: 0000000091ed5000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: check_preemption_disabled+0x3c/0x280 lib/smp_processor_id.c:25 __do_softirq+0xc5/0x980 kernel/softirq.c:266 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:console_trylock_spinning kernel/printk/printk.c:1724 [inline] RIP: 0010:vprintk_emit+0x668/0x740 kernel/printk/printk.c:1964 Code: 48 b8 00 00 00 00 00 fc ff df 41 80 7c 05 00 00 0f 85 d9 00 00 00 48 83 3d 9c a2 a3 08 00 74 37 e8 7d a5 14 00 48 89 df 57 9d <0f> 1f 44 00 00 e9 82 fe ff ff e8 69 a5 14 00 0f 0b e8 62 a5 14 00 RSP: 0018:ffff8880a9bff990 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff888097488140 RBX: 0000000000000293 RCX: 1ffff11012e91142 RDX: 0000000000000000 RSI: ffffffff814ddff3 RDI: 0000000000000293 RBP: ffff8880a9bff9d0 R08: ffffffff8cd458e8 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000053 R13: 1ffffffff13e3051 R14: 0000000000000200 R15: 0000000000000001 vprintk_func+0x79/0x180 kernel/printk/printk_safe.c:405 printk+0xba/0xed kernel/printk/printk.c:2040 print_hex_dump.cold+0x23/0x7a lib/hexdump.c:263 xfs_hex_dump+0x36/0x40 fs/xfs/xfs_message.c:110 xfs_buf_verifier_error+0x22a/0x310 fs/xfs/xfs_error.c:370 xfs_allocbt_read_verify+0x118/0x380 fs/xfs/libxfs/xfs_alloc_btree.c:357 xfs_buf_ioend+0x1da/0x6e0 fs/xfs/xfs_buf.c:1202 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415