INFO: task syz.8.147:7143 blocked for more than 143 seconds.
      Not tainted 6.13.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.147       state:D stack:23312 pid:7143  tgid:7142  ppid:6621   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
 __mutex_lock_common kernel/locking/mutex.c:665 [inline]
 __mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735
 hfs_find_init+0x16e/0x1f0
 hfs_ext_read_extent fs/hfs/extent.c:200 [inline]
 hfs_extend_file+0x31b/0x1450 fs/hfs/extent.c:401
 hfs_bmap_reserve+0xd9/0x400 fs/hfs/btree.c:234
 __hfs_ext_write_extent+0x22e/0x4f0 fs/hfs/extent.c:121
 __hfs_ext_cache_extent+0x6a/0x990 fs/hfs/extent.c:174
 hfs_ext_read_extent fs/hfs/extent.c:202 [inline]
 hfs_extend_file+0x344/0x1450 fs/hfs/extent.c:401
 hfs_get_block+0x3e4/0xb60 fs/hfs/extent.c:353
 __block_write_begin_int+0x692/0x19a0 fs/buffer.c:2116
 block_write_begin fs/buffer.c:2226 [inline]
 cont_write_begin+0x77f/0xb40 fs/buffer.c:2577
 hfs_write_begin+0x68/0xb0 fs/hfs/inode.c:52
 cont_expand_zero fs/buffer.c:2504 [inline]
 cont_write_begin+0x32b/0xb40 fs/buffer.c:2567
 hfs_write_begin+0x68/0xb0 fs/hfs/inode.c:52
 hfs_file_truncate+0x1ed/0xa20 fs/hfs/extent.c:494
 hfs_inode_setattr+0x458/0x620 fs/hfs/inode.c:654
 notify_change+0xbca/0xe90 fs/attr.c:552
 do_truncate+0x220/0x310 fs/open.c:65
 vfs_truncate+0x2e1/0x3b0 fs/open.c:111
 do_sys_truncate+0xdb/0x190 fs/open.c:134
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcd53f85d19
RSP: 002b:00007fcd51df6038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007fcd54175fa0 RCX: 00007fcd53f85d19
RDX: 0000000000000000 RSI: 0000000000008008 RDI: 00000000200000c0
RBP: 00007fcd54001a20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fcd54175fa0 R15: 00007ffc4751a1d8
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
 watchdog+0xff6/0x1040 kernel/hung_task.c:397
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 12689 Comm: syz.4.657 Not tainted 6.13.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:filemap_dirty_folio+0x115/0x190 mm/page-writeback.c:2845
Code: 89 ff e8 ae 40 28 00 49 8b 07 31 d2 a9 00 40 00 00 0f 94 c2 4c 89 ff 4c 89 f6 e8 66 f0 ff ff 4c 89 f0 48 c1 e8 03 80 3c 28 00 <74> 08 4c 89 f7 e8 81 40 28 00 49 8b 1e 48 85 db 74 14 e8 d4 62 c4
RSP: 0018:ffffc9000bbaf2d8 EFLAGS: 00000246
RAX: 1ffff1100b6b17f3 RBX: 0000000000000000 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8c5ed740 RDI: 0000000000000001
RBP: dffffc0000000000 R08: ffffffff90184ef7 R09: 1ffffffff20309de
R10: dffffc0000000000 R11: fffffbfff20309df R12: ffffea0001fa4a88
R13: 0000000000000000 R14: ffff88805b58bf98 R15: ffffea0001fa4a80
FS:  00007fc587b3f6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055f1a7444a68 CR3: 0000000033f8e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 f2fs_dirty_data_folio+0x298/0x4a0 fs/f2fs/data.c:3797
 f2fs_write_end+0x503/0xe70 fs/f2fs/data.c:3735
 generic_perform_write+0x6f6/0x990 mm/filemap.c:4070
 f2fs_buffered_write_iter fs/f2fs/file.c:4836 [inline]
 f2fs_file_write_iter+0x2046/0x2590 fs/f2fs/file.c:5064
 iter_file_splice_write+0xbfa/0x1510 fs/splice.c:743
 do_splice_from fs/splice.c:941 [inline]
 direct_splice_actor+0x11b/0x220 fs/splice.c:1164
 splice_direct_to_actor+0x586/0xc80 fs/splice.c:1108
 do_splice_direct_actor fs/splice.c:1207 [inline]
 do_splice_direct+0x289/0x3e0 fs/splice.c:1233
 vfs_copy_file_range+0xd1f/0x1510 fs/read_write.c:1620
 __do_sys_copy_file_range fs/read_write.c:1670 [inline]
 __se_sys_copy_file_range+0x3fa/0x600 fs/read_write.c:1637
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc586d85d19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc587b3f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007fc586f75fa0 RCX: 00007fc586d85d19
RDX: 0000000000000007 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 00007fc586e01a20 R08: ffffffffa003e459 R09: 0700000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc586f75fa0 R15: 00007ffc4a66e738
 </TASK>