INFO: task udevd:8968 blocked for more than 143 seconds.
      Not tainted 6.16.0-syzkaller-12063-g37816488247d-dirty #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:21928 pid:8968  tgid:8968  ppid:1      task_flags:0x400140 flags:0x00004006
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 io_schedule+0x80/0xd0
 folio_wait_bit_common+0x6b0/0xb90
 do_read_cache_folio+0x1aa/0x590
 read_part_sector+0xb6/0x2b0
 adfspart_check_POWERTEC+0x8c/0xf30
 bdev_disk_changed+0x75f/0x14b0
 blkdev_get_whole+0x380/0x510
 bdev_open+0x31e/0xd30
 blkdev_open+0x3a8/0x510
 do_dentry_open+0x953/0x13f0
 vfs_open+0x3b/0x340
 path_openat+0x2ee5/0x3830
 do_filp_open+0x1fa/0x410
 do_sys_openat2+0x121/0x1c0
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f165ff169a4
RSP: 002b:00007fffa544bff0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000056396a544f40 RCX: 00007f165ff169a4
RDX: 00000000000a0800 RSI: 000056396a526470 RDI: 00000000ffffff9c
RBP: 000056396a526470 R08: 0000000000000001 R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000056396a543940 R14: 0000000000000001 R15: 000056396a525910
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e139ee0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5674:
 #0: ffff8880260080a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000291b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
3 locks held by syz-executor/5833:
1 lock held by udevd/8968:
 #0: ffff88802093e358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30

=============================================

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 34 Comm: khungtaskd Not tainted 6.16.0-syzkaller-12063-g37816488247d-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250
 nmi_cpu_backtrace+0x39e/0x3d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 watchdog+0xf93/0xfe0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5833 Comm: syz-executor Not tainted 6.16.0-syzkaller-12063-g37816488247d-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__free_one_page+0x3dc/0xbd0
Code: 84 32 04 00 00 48 89 df 48 8b 74 24 18 44 89 ea e8 09 ee 00 00 48 8b 4c 24 08 48 21 cd 48 89 e8 48 29 c8 48 c1 e0 06 49 01 c6 <41> ff c5 48 89 6c 24 08 48 8b 6c 24 10 48 85 ed 0f 85 d7 fd ff ff
RSP: 0018:ffffc90003246f88 EFLAGS: 00000087
RAX: ffffffffffffffc0 RBX: ffffea0000e76900 RCX: 0000000000039da5
RDX: 0000000000000017 RSI: 0000000000039da4 RDI: ffffea0000e76910
RBP: 0000000000039da4 R08: ffffea0000e76937 R09: 1ffffd40001ced26
R10: dffffc0000000000 R11: fffff940001ced27 R12: ffffea0000e76934
R13: 0000000000000000 R14: ffffea0000e76900 R15: dffffc0000000000
FS:  00005555713cd500(0000) GS:ffff8880b8621000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff040bcb88 CR3: 0000000029084000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 free_pcppages_bulk+0x2da/0x4e0
 free_frozen_page_commit+0x62c/0x1070
 free_unref_folios+0x120b/0x1520
 folios_put_refs+0x559/0x640
 free_pages_and_swap_cache+0x277/0x520
 tlb_flush_mmu+0x3a0/0x680
 unmap_page_range+0x3b31/0x4370
 unmap_vmas+0x399/0x580
 exit_mmap+0x248/0xb50
 __mmput+0x118/0x430
 exit_mm+0x1da/0x2c0
 do_exit+0x648/0x2300
 do_group_exit+0x21c/0x2d0
 __x64_sys_exit_group+0x3f/0x40
 x64_sys_call+0x21f7/0x2200
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f263af8ebe9
Code: Unable to access opcode bytes at 0x7f263af8ebbf.
RSP: 002b:00007ffde1cc1648 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f263b02e337 RCX: 00007f263af8ebe9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000043
RBP: 00007f263b02e355 R08: 00007ffde1cbf3e7 R09: 0000000000000004
R10: 0000000000000040 R11: 0000000000000246 R12: 0000000000000009
R13: 0000000000000004 R14: 00007ffde1cc176c R15: 00007ffde1cc1800
 </TASK>
