INFO: task kcompactd0:1644 blocked for more than 143 seconds. Tainted: G W 5.13.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kcompactd0 state:D stack:26688 pid: 1644 ppid: 2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:4683 [inline] __schedule+0xc07/0x11f0 kernel/sched/core.c:5940 schedule+0x14b/0x210 kernel/sched/core.c:6019 io_schedule+0x83/0x100 kernel/sched/core.c:8007 wait_on_page_bit_common+0x9ca/0x1030 mm/filemap.c:1301 lock_page include/linux/pagemap.h:626 [inline] __unmap_and_move+0x924/0xca0 mm/migrate.c:1024 unmap_and_move+0x339/0xd70 mm/migrate.c:1174 migrate_pages+0x512/0x1730 mm/migrate.c:1448 compact_zone+0x2d51/0x3d40 mm/compaction.c:2401 proactive_compact_node mm/compaction.c:2655 [inline] kcompactd+0x1b92/0x26d0 mm/compaction.c:2925 kthread+0x453/0x480 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 INFO: lockdep is turned off. NMI backtrace for cpu 0 CPU: 0 PID: 1640 Comm: khungtaskd Tainted: G W 5.13.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack_lvl+0x1d3/0x29f lib/dump_stack.c:96 nmi_cpu_backtrace+0x16c/0x190 lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace+0x191/0x2f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:209 [inline] watchdog+0xd06/0xd50 kernel/hung_task.c:294 kthread+0x453/0x480 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 17249 Comm: syz-executor.3 Tainted: G W 5.13.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:check_kcov_mode kernel/kcov.c:174 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x33/0x60 kernel/kcov.c:197 Code: 80 ef 01 00 65 8b 15 a4 22 82 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 34 15 00 00 00 74 2c 8b 91 10 15 00 00 <83> fa 02 75 21 48 8b 91 18 15 00 00 48 8b 32 48 8d 7e 01 8b 89 14 RSP: 0018:ffffc90017e2f828 EFLAGS: 00000246 RAX: ffffffff82a27093 RBX: 0000000000000001 RCX: ffff88801c61d4c0 RDX: 0000000000000002 RSI: ffffffff8d23a6a0 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000005 R09: ffffffff82a27081 R10: 0000000000000002 R11: ffff88801c61d4c0 R12: 1ffff11008ad5eca R13: ffff8880456af600 R14: ffff8880456af652 R15: ffff8880456af650 FS: 00007f5bffad5700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c042434000 CR3: 00000000305ef000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ntfs_lookup_inode_by_name+0x17c3/0x3790 fs/ntfs/dir.c:505 check_windows_hibernation_status+0xfc/0x6e0 fs/ntfs/super.c:1274 load_system_files fs/ntfs/super.c:1989 [inline] ntfs_fill_super+0x414a/0x5f20 fs/ntfs/super.c:2893 mount_bdev+0x26c/0x3a0 fs/super.c:1368 legacy_get_tree+0xea/0x180 fs/fs_context.c:592 vfs_get_tree+0x86/0x270 fs/super.c:1498 do_new_mount fs/namespace.c:2905 [inline] path_mount+0x196f/0x2be0 fs/namespace.c:3235 do_mount fs/namespace.c:3248 [inline] __do_sys_mount fs/namespace.c:3456 [inline] __se_sys_mount+0x2f9/0x3b0 fs/namespace.c:3433 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x467afa Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f5bffad4fa8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 0000000000467afa RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f5bffad5000 RBP: 00007f5bffad5040 R08: 00007f5bffad5040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f5bffad5000 R15: 0000000020086400