INFO: task udevd:3996 blocked for more than 143 seconds.
Not tainted 5.18.0-rc2-syzkaller-00291-g90ea17a9e27b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:26152 pid: 3996 ppid: 2963 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0xa9a/0x4cc0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
io_schedule+0xba/0x130 kernel/sched/core.c:8563
folio_wait_bit_common+0x4f2/0xa90 mm/filemap.c:1324
folio_wait_bit mm/filemap.c:1473 [inline]
folio_wait_locked include/linux/pagemap.h:976 [inline]
folio_wait_locked include/linux/pagemap.h:973 [inline]
do_read_cache_folio+0x506/0x760 mm/filemap.c:3516
do_read_cache_page mm/filemap.c:3588 [inline]
read_cache_page+0x59/0x2a0 mm/filemap.c:3597
read_mapping_page include/linux/pagemap.h:759 [inline]
read_part_sector+0xf6/0x920 block/partitions/core.c:723
adfspart_check_ICS+0x9a/0x690 block/partitions/acorn.c:360
check_partition block/partitions/core.c:147 [inline]
blk_add_partitions block/partitions/core.c:608 [inline]
bdev_disk_changed block/partitions/core.c:694 [inline]
bdev_disk_changed+0x629/0xf60 block/partitions/core.c:661
blkdev_get_whole+0x206/0x2d0 block/bdev.c:679
blkdev_get_by_dev.part.0+0x5d2/0xc80 block/bdev.c:816
blkdev_get_by_dev+0x6b/0x80 block/bdev.c:850
blkdev_open+0x13c/0x2c0 block/fops.c:498
do_dentry_open+0x4a1/0x11e0 fs/open.c:824
do_open fs/namei.c:3476 [inline]
path_openat+0x1c71/0x2910 fs/namei.c:3609
do_filp_open+0x1aa/0x400 fs/namei.c:3636
do_sys_openat2+0x16d/0x4c0 fs/open.c:1213
do_sys_open fs/open.c:1229 [inline]
__do_sys_openat fs/open.c:1245 [inline]
__se_sys_openat fs/open.c:1240 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1240
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f444d37e697
RSP: 002b:00007ffda0c68930 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000056351825f0c0 RCX: 00007f444d37e697
RDX: 00000000000a0800 RSI: 000056351825f9a0 RDI: 00000000ffffff9c
RBP: 000056351825f9a0 R08: 0000000000000001 R09: 00007ffda0d30080
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000056351825d1b0 R14: 0000000000000001 R15: 0000563518239910
INFO: task syz-executor.1:25413 blocked for more than 143 seconds.
Not tainted 5.18.0-rc2-syzkaller-00291-g90ea17a9e27b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28032 pid:25413 ppid: 3624 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0xa9a/0x4cc0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6519
__mutex_lock_common kernel/locking/mutex.c:673 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
blkdev_put+0x99/0x950 block/bdev.c:905
blkdev_close+0x64/0x80 block/fops.c:512
__fput+0x277/0x9d0 fs/file_table.c:317
task_work_run+0xdd/0x1a0 kernel/task_work.c:164
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:169 [inline]
exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:201
__syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:294
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f3d6c63bd2b
RSP: 002b:00007ffe48dd5380 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007f3d6c63bd2b
RDX: 0000001b2de20000 RSI: 0000001b2de2275c RDI: 0000000000000006
RBP: 00007f3d6c79d960 R08: 0000000000000000 R09: 00000000ef11498a
R10: 00007ffe48de0090 R11: 0000000000000293 R12: 0000000000061be8
R13: 00007ffe48dd5480 R14: 00007f3d6c79c030 R15: 0000000000000032
INFO: task syz-executor.1:25414 blocked for more than 143 seconds.
Not tainted 5.18.0-rc2-syzkaller-00291-g90ea17a9e27b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28408 pid:25414 ppid: 3624 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0xa9a/0x4cc0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6519
__mutex_lock_common kernel/locking/mutex.c:673 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
blkdev_put+0x99/0x950 block/bdev.c:905
blkdev_close+0x64/0x80 block/fops.c:512
__fput+0x277/0x9d0 fs/file_table.c:317
task_work_run+0xdd/0x1a0 kernel/task_work.c:164
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:169 [inline]
exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:201
__syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:294
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f3d6c6890e9
RSP: 002b:00007f3d6d7e2168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f3d6c79bf60 RCX: 00007f3d6c6890e9
RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
RBP: 00007f3d6c6e308d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe48dd531f R14: 00007f3d6d7e2300 R15: 0000000000022000
Showing all locks held in the system:
3 locks held by kworker/u4:0/8:
#0: ffff8880b9d39f98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:554
#1: ffffc900000d7da8 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffff8880b9d28458 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x5a/0x1f0 kernel/time/timer.c:946
1 lock held by khungtaskd/28:
#0: ffffffff8bd81de0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6467
2 locks held by getty/3274:
#0: ffff88801de6a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002e662e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcea/0x1230 drivers/tty/n_tty.c:2075
1 lock held by udevd/3996:
#0: ffff88801c155118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xc80 block/bdev.c:807
1 lock held by syz-executor.1/25413:
#0: ffff88801c155118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0x99/0x950 block/bdev.c:905
1 lock held by syz-executor.1/25414:
#0: ffff88801c155118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0x99/0x950 block/bdev.c:905
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.18.0-rc2-syzkaller-00291-g90ea17a9e27b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:369
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3701 Comm: kworker/u4:6 Not tainted 5.18.0-rc2-syzkaller-00291-g90ea17a9e27b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_nc_worker
RIP: 0010:check_preemption_disabled+0x2/0x170 lib/smp_processor_id.c:13
Code: 1f 44 00 00 e8 df a5 3e f8 65 48 8b 3c 25 00 70 02 00 e8 11 d9 f9 f7 eb 99 0f 1f 44 00 00 0f 0b e9 23 ff ff ff cc cc cc 41 56 <41> 55 49 89 f5 41 54 55 48 89 fd 53 0f 1f 44 00 00 65 44 8b 25 75
RSP: 0018:ffffc90004aa7b60 EFLAGS: 00000282
RAX: 0000000000000001 RBX: 1ffff92000954f75 RCX: ffffffff815da6d8
RDX: 0000000000000001 RSI: ffffffff8a26b9e0 RDI: ffffffff8a26ba20
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8db70d17
R10: fffffbfff1b6e1a2 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000000 R14: ffffffff8bd81de0 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffefd9d9348 CR3: 000000007ec84000 CR4: 0000000000350ee0
Call Trace:
rcu_lockdep_current_cpu_online kernel/rcu/tree.c:1185 [inline]
rcu_lockdep_current_cpu_online+0x2d/0x140 kernel/rcu/tree.c:1177
rcu_read_lock_held_common kernel/rcu/update.c:112 [inline]
rcu_read_lock_held_common kernel/rcu/update.c:102 [inline]
rcu_read_lock_sched_held+0x25/0x70 kernel/rcu/update.c:123
trace_lock_acquire include/trace/events/lock.h:13 [inline]
lock_acquire+0x442/0x510 kernel/locking/lockdep.c:5612
rcu_lock_acquire include/linux/rcupdate.h:268 [inline]
rcu_read_lock include/linux/rcupdate.h:694 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0x12d/0xfa0 net/batman-adv/network-coding.c:719
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 44 00 00 add %r8b,(%rax)
3: e8 df a5 3e f8 callq 0xf83ea5e7
8: 65 48 8b 3c 25 00 70 mov %gs:0x27000,%rdi
f: 02 00
11: e8 11 d9 f9 f7 callq 0xf7f9d927
16: eb 99 jmp 0xffffffb1
18: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
1d: 0f 0b ud2
1f: e9 23 ff ff ff jmpq 0xffffff47
24: cc int3
25: cc int3
26: cc int3
27: 41 56 push %r14
* 29: 41 55 push %r13 <-- trapping instruction
2b: 49 89 f5 mov %rsi,%r13
2e: 41 54 push %r12
30: 55 push %rbp
31: 48 89 fd mov %rdi,%rbp
34: 53 push %rbx
35: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
3a: 65 gs
3b: 44 rex.R
3c: 8b .byte 0x8b
3d: 25 .byte 0x25
3e: 75 .byte 0x75