INFO: task syz.0.164:5657 blocked for more than 143 seconds.
      Not tainted 6.10.0-rc7-next-20240709-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.164       state:D stack:25520 pid:5657  tgid:5657  ppid:5104   flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5239 [inline]
 __schedule+0x1800/0x4a60 kernel/sched/core.c:6603
 __schedule_loop kernel/sched/core.c:6680 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6695
 io_schedule+0x8d/0x110 kernel/sched/core.c:7480
 folio_wait_bit_common+0x882/0x12b0 mm/filemap.c:1307
 folio_lock include/linux/pagemap.h:1050 [inline]
 remove_inode_single_folio fs/hugetlbfs/inode.c:603 [inline]
 remove_inode_hugepages+0x508/0x1520 fs/hugetlbfs/inode.c:669
 hugetlbfs_evict_inode+0x23/0x70 fs/hugetlbfs/inode.c:689
 evict+0x2a8/0x630 fs/inode.c:669
 __dentry_kill+0x20d/0x630 fs/dcache.c:607
 dput+0x19f/0x2b0 fs/dcache.c:849
 __fput+0x5f8/0x8a0 fs/file_table.c:430
 task_work_run+0x24f/0x310 kernel/task_work.c:204
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x168/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f325d175bd9
RSP: 002b:00007ffe249ded48 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 000000000001667a RCX: 00007f325d175bd9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: ffffffffffffffff R08: 0000000000000001 R09: 00000004249df06f
R10: 00007f325d000000 R11: 0000000000000246 R12: 00007f325d303f6c
R13: 0000000000000032 R14: 00007f325d305a60 R15: 00007f325d303f60
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc7-next-20240709-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
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:223 [inline]
 watchdog+0xfee/0x1030 kernel/hung_task.c:379
 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: 8518 Comm: syz-executor Not tainted 6.10.0-rc7-next-20240709-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:99 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:227 [inline]
RIP: 0010:unwind_next_frame+0x52c/0x2a00 arch/x86/kernel/unwind_orc.c:494
Code: 48 01 dd 48 89 ef 4c 89 f6 e8 e0 91 52 00 48 8d 43 04 4c 39 f5 4c 0f 46 e8 48 8d 43 fc 4c 0f 47 e0 4c 0f 46 fb 4d 39 e5 77 1d <e8> 5f 8f 52 00 eb 96 89 d9 80 e1 07 80 c1 03 38 c1 7c c0 48 89 df
RSP: 0018:ffffc900178bf2e8 EFLAGS: 00000287
RAX: ffffffff902bea20 RBX: ffffffff902bea24 RCX: ffff8880790e5a00
RDX: 0000000000000000 RSI: ffffffff8ba0012f RDI: ffffffff8ba0015e
RBP: ffffffff8ba0015e R08: ffffffff8140fc60 R09: ffffc900178bf4b0
R10: 0000000000000003 R11: ffffffff817f3390 R12: ffffffff902bea20
R13: ffffffff902bea08 R14: ffffffff8ba0012f R15: ffffffff902bea08
FS:  00005555604c7500(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc8770d1178 CR3: 0000000066456000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
 save_stack+0xfb/0x1f0 mm/page_owner.c:156
 __reset_page_owner+0x75/0x3f0 mm/page_owner.c:297
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1094 [inline]
 free_unref_folios+0x103a/0x1b00 mm/page_alloc.c:2692
 folios_put_refs+0x76e/0x860 mm/swap.c:1039
 folio_batch_release include/linux/pagevec.h:101 [inline]
 truncate_inode_pages_range+0x47b/0xfc0 mm/truncate.c:363
 kill_bdev block/bdev.c:90 [inline]
 blkdev_flush_mapping+0x108/0x250 block/bdev.c:664
 blkdev_put_whole block/bdev.c:671 [inline]
 bdev_release+0x466/0x700 block/bdev.c:1096
 blkdev_release+0x15/0x20 block/fops.c:638
 __fput+0x24a/0x8a0 fs/file_table.c:422
 task_work_run+0x24f/0x310 kernel/task_work.c:204
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x168/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f119ad76f07
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fffab7dc768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f119ad76f07
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffab7dc820
RBP: 00007fffab7dc820 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fffab7dd8e0
R13: 00007f119ade3515 R14: 000000000003bd9d R15: 000000000003b80c
 </TASK>