INFO: task udevd:23767 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:22760 pid:23767 tgid:23767 ppid:5291   task_flags:0x400040 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: 0033:0x7fa4341169a4
RSP: 002b:00007fff1c1ec8b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055c82a91a950 RCX: 00007fa4341169a4
RDX: 00000000000a0800 RSI: 000055c82a911560 RDI: 00000000ffffff9c
RBP: 000055c82a911560 R08: 0000000000000001 R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000055c82a921aa0 R14: 00007fff1c1ec95c R15: 000055c82a910910
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 34 Comm: khungtaskd Not tainted syzkaller #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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 8496 Comm: kworker/u8:5 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: bat_events batadv_tt_purge
RIP: 0010:__local_bh_enable_ip+0xc6/0x1c0
Code: 0f 65 8b 05 84 b5 1b 11 85 c0 0f 84 d3 00 00 00 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 8b 44 24 20 fa a9 00 02 00 00 74 0b <49> 89 fc e8 d2 6e 42 00 4c 89 e7 65 8b 05 88 78 1b 11 25 00 ff 00
RSP: 0018:ffffc90009c778c0 EFLAGS: 00000006
RAX: 0000000000000246 RBX: 0000000000000201 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000201 RDI: ffffffff8b4a4807
RBP: ffffc90009c77958 R08: ffff88811aa00083 R09: 1ffff11023540010
R10: dffffc0000000000 R11: ffffed1023540011 R12: ffff88811c482f08
R13: dffffc0000000000 R14: dffffc0000000000 R15: 1ffff9200138ef18
FS:  0000000000000000(0000) GS:ffff8881a3c1a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff3ba64bd8 CR3: 000000010ffcc000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 batadv_tt_local_purge+0x2a7/0x340
 batadv_tt_purge+0x35/0x9e0
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
