INFO: task kworker/u4:1:9 blocked for more than 143 seconds.
      Tainted: G        W         5.14.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:1    state:D stack:26040 pid:    9 ppid:     2 flags:0x00004000
Workqueue: writeback wb_workfn (flush-7:0)
Call Trace:
 context_switch kernel/sched/core.c:4683 [inline]
 __schedule+0xaff/0x5910 kernel/sched/core.c:5940
 schedule+0xd3/0x270 kernel/sched/core.c:6019
 rwsem_down_write_slowpath+0x7b9/0x11d0 kernel/locking/rwsem.c:1106
 __down_write_common kernel/locking/rwsem.c:1261 [inline]
 __down_write_common kernel/locking/rwsem.c:1258 [inline]
 __down_write kernel/locking/rwsem.c:1270 [inline]
 down_write+0x137/0x150 kernel/locking/rwsem.c:1407
 f2fs_balance_fs+0x43c/0x5a0 fs/f2fs/segment.c:524
 f2fs_write_inode+0x472/0x11a0 fs/f2fs/inode.c:721
 write_inode fs/fs-writeback.c:1463 [inline]
 __writeback_single_inode+0x73e/0xaf0 fs/fs-writeback.c:1668
 writeback_sb_inodes+0x466/0xc50 fs/fs-writeback.c:1875
 __writeback_inodes_wb+0xb2/0x200 fs/fs-writeback.c:1944
 wb_writeback+0x5c1/0x8d0 fs/fs-writeback.c:2050
 wb_check_old_data_flush fs/fs-writeback.c:2152 [inline]
 wb_do_writeback fs/fs-writeback.c:2205 [inline]
 wb_workfn+0x6de/0xf30 fs/fs-writeback.c:2234
 process_one_work+0x84c/0x13d0 kernel/workqueue.c:2276
 worker_thread+0x598/0x1040 kernel/workqueue.c:2422
 kthread+0x38b/0x460 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 1
CPU: 1 PID: 1643 Comm: khungtaskd Tainted: G        W         5.14.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Call Trace:
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x57/0x7d lib/dump_stack.c:105
 nmi_cpu_backtrace.cold+0x30/0x99 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x11f/0x170 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
 watchdog+0x92e/0xc40 kernel/hung_task.c:295
 kthread+0x38b/0x460 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 6089 Comm: syz-executor.0 Tainted: G        W         5.14.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
RIP: 0010:lock_acquire+0x81/0x510 kernel/locking/lockdep.c:5593
Code: f1 f1 f1 f1 c7 40 04 f1 f1 00 00 c7 40 08 00 00 00 f3 c7 40 0c f3 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 84 24 a8 00 00 00 <31> c0 0f 1f 44 00 00 65 8b 15 89 b8 ad 7e 83 fa 07 0f 87 dc 03 00
RSP: 0018:ffffc9000187e430 EFLAGS: 00000286
RAX: 8b7afe4ba9153000 RBX: 1ffff9200030fc88 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888015dd7cc8
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: ffffed1002bbaf8b R11: 000000000007c088 R12: 0000000000000001
R13: 0000000000000000 R14: ffff888015dd7cc8 R15: 0000000000000000
FS:  00007f835306e700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c264eb2000 CR3: 0000000036e1d000 CR4: 0000000000350ef0
Call Trace:
 down_read+0x9a/0x440 kernel/locking/rwsem.c:1353
 check_valid_map fs/f2fs/gc.c:878 [inline]
 gc_data_segment fs/f2fs/gc.c:1427 [inline]
 do_garbage_collect+0x15f4/0x3530 fs/f2fs/gc.c:1644
 f2fs_gc+0x65f/0x1340 fs/f2fs/gc.c:1737
 f2fs_balance_fs+0x450/0x5a0 fs/f2fs/segment.c:525
 f2fs_write_single_data_page+0xff1/0x1400 fs/f2fs/data.c:2787
 f2fs_write_cache_pages+0x7fe/0x1600 fs/f2fs/data.c:3000
 __f2fs_write_data_pages fs/f2fs/data.c:3147 [inline]
 f2fs_write_data_pages+0x3e3/0xeb0 fs/f2fs/data.c:3174
 do_writepages+0xca/0x240 mm/page-writeback.c:2355
 __filemap_fdatawrite_range+0x243/0x320 mm/filemap.c:413
 file_write_and_wait_range+0x8d/0xf0 mm/filemap.c:792
 f2fs_do_sync_file+0x330/0x1c30 fs/f2fs/file.c:276
 generic_write_sync include/linux/fs.h:2987 [inline]
 f2fs_file_write_iter+0x43d/0xd00 fs/f2fs/file.c:4331
 __kernel_write+0x469/0x950 fs/read_write.c:550
 __dump_emit+0x151/0x260 fs/coredump.c:859
 dump_emit fs/coredump.c:896 [inline]
 dump_user_range+0xbb/0x2b0 fs/coredump.c:933
 elf_core_dump+0x2347/0x2cb0 fs/binfmt_elf.c:2277
 do_coredump+0x18b0/0x2dd0 fs/coredump.c:811
 get_signal+0x93c/0x1c80 kernel/signal.c:2794
 arch_do_signal_or_restart+0x2b2/0x1720 arch/x86/kernel/signal.c:865
 handle_signal_work kernel/entry/common.c:148 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
 exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:209
 irqentry_exit_to_user_mode+0x5/0x40 kernel/entry/common.c:315
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0x0
Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
RSP: 002b:00000000200001c8 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f8353e1bf80 RCX: 00007f8353cfc0f9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000080004000
RBP: 00007f8353d57b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007ffd9ce00f2f R14: 00007f835306e300 R15: 0000000000022000