INFO: task syz-executor.0:29392 blocked for more than 143 seconds. Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:19088 pid:29392 tgid:29392 ppid:1 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0x177f/0x4960 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0x149/0x260 kernel/sched/core.c:6817 wb_wait_for_completion+0x166/0x290 fs/fs-writeback.c:192 sync_inodes_sb+0x293/0xb20 fs/fs-writeback.c:2758 sync_filesystem+0x16f/0x220 fs/sync.c:64 generic_shutdown_super+0x72/0x2c0 fs/super.c:625 kill_block_super+0x44/0x90 fs/super.c:1680 xfs_kill_sb+0x15/0x50 fs/xfs/xfs_super.c:2019 deactivate_locked_super+0xc1/0x130 fs/super.c:477 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1267 task_work_run+0x24a/0x300 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:108 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline] syscall_exit_to_user_mode+0x167/0x370 kernel/entry/common.c:212 do_syscall_64+0x102/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f670f47e0d7 RSP: 002b:00007ffc637191f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f670f47e0d7 RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffc637192b0 RBP: 00007ffc637192b0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc6371a370 R13: 00007f670f4c83b9 R14: 000000000034de02 R15: 0000000000000004 INFO: lockdep is turned off. NMI backtrace for cpu 1 CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x310 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xfaf/0xff0 kernel/hung_task.c:379 kthread+0x2d3/0x370 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 5139 Comm: kworker/0:5 Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Workqueue: xfs-buf/loop0 xfs_buf_ioend_work RIP: 0010:put_dec_trunc8+0x0/0x330 lib/vsprintf.c:223 Code: ff ff e8 13 2d 71 f6 48 c7 c7 a0 5e ea 8e 48 89 de e8 94 3a a6 f9 e9 44 fe ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 <55> 41 57 41 56 41 55 41 54 53 89 f5 49 89 fe 49 bd 00 00 00 00 00 RSP: 0018:ffffc90003b8edd8 EFLAGS: 00000293 RAX: ffffffff8b1d0339 RBX: ffffc90003b8ee60 RCX: ffff88801e423b80 RDX: 0000000000000000 RSI: 0000000000000e1e RDI: ffffc90003b8ee60 RBP: ffffc90003b8eef0 R08: ffffffff8b1d02a1 R09: 0000000000000000 R10: ffffc90003b8ee60 R11: fffff52000771dcf R12: 00000000ffff0a00 R13: dffffc0000000000 R14: 0000000000000e1e R15: ffffc90003b8f241 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005641b0484600 CR3: 000000000d732000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: number+0x337/0xf90 lib/vsprintf.c:511 vsnprintf+0x1542/0x1da0 lib/vsprintf.c:2890 sprintf+0xda/0x120 lib/vsprintf.c:3028 print_time kernel/printk/printk.c:1324 [inline] info_print_prefix+0x16b/0x300 kernel/printk/printk.c:1350 record_print_text kernel/printk/printk.c:1399 [inline] printk_get_next_message+0x408/0xce0 kernel/printk/printk.c:2828 console_emit_next_record kernel/printk/printk.c:2868 [inline] console_flush_all+0x42d/0xeb0 kernel/printk/printk.c:2967 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3036 vprintk_emit+0x508/0x720 kernel/printk/printk.c:2303 _printk+0xd5/0x120 kernel/printk/printk.c:2328 print_hex_dump+0x1a6/0x250 lib/hexdump.c:285 xfs_hex_dump+0x3d/0x50 fs/xfs/xfs_message.c:110 xfs_buf_verifier_error+0x1ce/0x2a0 fs/xfs/xfs_error.c:460 xfs_agf_read_verify+0x200/0x2b0 fs/xfs/libxfs/xfs_alloc.c:3213 xfs_buf_ioend+0x270/0x700 fs/xfs/xfs_buf.c:1309 process_one_work kernel/workqueue.c:2633 [inline] process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2706 worker_thread+0xa5f/0x1000 kernel/workqueue.c:2787 kthread+0x2d3/0x370 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242