INFO: task syz-executor.5:14644 blocked for more than 143 seconds.
      Not tainted 6.5.0-syzkaller-11275-gdb906f0ca6bb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:27136 pid:14644 ppid:5080   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0xee1/0x59f0 kernel/sched/core.c:6695
 schedule+0xe7/0x1b0 kernel/sched/core.c:6771
 io_schedule+0xbe/0x130 kernel/sched/core.c:9026
 folio_wait_bit_common+0x3d2/0x9b0 mm/filemap.c:1304
 folio_lock include/linux/pagemap.h:1042 [inline]
 write_cache_pages+0x647/0xd70 mm/page-writeback.c:2441
 iomap_writepages+0x4f/0xb0 fs/iomap/buffered-io.c:1979
 gfs2_writepages+0x147/0x240 fs/gfs2/aops.c:191
 do_writepages+0x1b4/0x690 mm/page-writeback.c:2553
 filemap_fdatawrite_wbc mm/filemap.c:393 [inline]
 filemap_fdatawrite_wbc+0x144/0x1b0 mm/filemap.c:383
 __filemap_fdatawrite_range+0xba/0x100 mm/filemap.c:426
 gfs2_ordered_write fs/gfs2/log.c:740 [inline]
 gfs2_log_flush+0x6b2/0x27f0 fs/gfs2/log.c:1098
 gfs2_trans_end+0x55d/0xa20 fs/gfs2/trans.c:158
 gfs2_page_mkwrite+0x1952/0x1c20 fs/gfs2/file.c:533
 do_page_mkwrite+0x17a/0x380 mm/memory.c:2931
 do_shared_fault mm/memory.c:4647 [inline]
 do_fault mm/memory.c:4709 [inline]
 do_pte_missing mm/memory.c:3669 [inline]
 handle_pte_fault mm/memory.c:4978 [inline]
 __handle_mm_fault+0x2627/0x3e20 mm/memory.c:5119
 handle_mm_fault+0x47a/0xa00 mm/memory.c:5284
 do_user_addr_fault+0x3d1/0x1010 arch/x86/mm/fault.c:1413
 handle_page_fault arch/x86/mm/fault.c:1505 [inline]
 exc_page_fault+0x5c/0xd0 arch/x86/mm/fault.c:1561
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7fa49cc5d3ec
RSP: 002b:00007ffe3dee1f08 EFLAGS: 00010206
RAX: 0000000020000040 RBX: 00007ffe3dee2018 RCX: 00007fa49c800000
RDX: 0000000000000016 RSI: 00007fa49c812df8 RDI: 0000000020000040
RBP: 0000000000000032 R08: 00007fa49cc00000 R09: 0000000000000973
R10: 0000000081734cb7 R11: 0000000000000246 R12: 00007fa49c812dd8
R13: fffffffffffffffe R14: 00007fa49c800000 R15: 00007fa49c812de0
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.5.0-syzkaller-11275-gdb906f0ca6bb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x277/0x380 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x299/0x300 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+0xfac/0x1230 kernel/hung_task.c:379
 kthread+0x33a/0x430 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 22 Comm: ksoftirqd/1 Not tainted 6.5.0-syzkaller-11275-gdb906f0ca6bb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x11/0x70 kernel/kcov.c:207
Code: b0 01 00 00 e8 b0 ff ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 65 8b 05 2d 20 7c 7e 89 c1 48 8b 34 24 <81> e1 00 01 00 00 65 48 8b 14 25 c0 bc 03 00 a9 00 01 ff 00 74 0e
RSP: 0018:ffffc900001c77b8 EFLAGS: 00000286
RAX: 0000000080000100 RBX: ffffc900001c7840 RCX: 0000000080000100
RDX: ffff888016e6bb80 RSI: ffffffff813a19da RDI: ffffc900001c7840
RBP: ffffc900001c78d0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 1ffff11003073fe4 R12: ffffc900001c7840
R13: ffffffff81753ff0 R14: ffffc900001c7900 R15: ffff888016e6bb80
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30222000 CR3: 0000000035e81000 CR4: 0000000000350ee0
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 unwind_next_frame+0x1a/0x2390 arch/x86/kernel/unwind_orc.c:471
 arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122
 kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:522
 ____kasan_slab_free mm/kasan/common.c:236 [inline]
 ____kasan_slab_free+0x15b/0x1b0 mm/kasan/common.c:200
 kasan_slab_free include/linux/kasan.h:162 [inline]
 slab_free_hook mm/slub.c:1800 [inline]
 slab_free_freelist_hook+0x114/0x1e0 mm/slub.c:1826
 slab_free mm/slub.c:3809 [inline]
 kmem_cache_free+0xf0/0x480 mm/slub.c:3831
 file_free_rcu+0xd9/0x130 fs/file_table.c:72
 rcu_do_batch kernel/rcu/tree.c:2139 [inline]
 rcu_core+0x7fb/0x1bb0 kernel/rcu/tree.c:2403
 __do_softirq+0x218/0x965 kernel/softirq.c:553
 run_ksoftirqd kernel/softirq.c:921 [inline]
 run_ksoftirqd+0x31/0x60 kernel/softirq.c:913
 smpboot_thread_fn+0x67d/0xa00 kernel/smpboot.c:164
 kthread+0x33a/0x430 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>