INFO: task systemd-udevd:25171 blocked for more than 143 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:systemd-udevd state:D stack:26552 pid:25171 ppid: 2969 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
io_schedule+0xee/0x170 kernel/sched/core.c:8371
folio_wait_bit_common+0x4f2/0xa60 mm/filemap.c:1371
folio_wait_bit mm/filemap.c:1431 [inline]
folio_wait_locked include/linux/pagemap.h:835 [inline]
folio_wait_locked include/linux/pagemap.h:832 [inline]
wait_on_page_locked include/linux/pagemap.h:847 [inline]
wait_on_page_read mm/filemap.c:3430 [inline]
do_read_cache_page+0x986/0x11a0 mm/filemap.c:3473
read_mapping_page include/linux/pagemap.h:635 [inline]
read_part_sector+0xf6/0x5b0 block/partitions/core.c:728
adfspart_check_ICS+0x9d/0xc90 block/partitions/acorn.c:360
check_partition block/partitions/core.c:149 [inline]
blk_add_partitions block/partitions/core.c:613 [inline]
bdev_disk_changed+0x759/0x1100 block/partitions/core.c:699
blkdev_get_whole+0x206/0x2d0 block/bdev.c:684
blkdev_get_by_dev.part.0+0x354/0xb50 block/bdev.c:826
blkdev_get_by_dev+0x6b/0x80 block/bdev.c:859
blkdev_open+0x154/0x2e0 block/fops.c:501
do_dentry_open+0x4c8/0x1250 fs/open.c:822
do_open fs/namei.c:3426 [inline]
path_openat+0x1cad/0x2750 fs/namei.c:3559
do_filp_open+0x1aa/0x400 fs/namei.c:3586
do_sys_openat2+0x16d/0x4d0 fs/open.c:1212
do_sys_open fs/open.c:1228 [inline]
__do_sys_open fs/open.c:1236 [inline]
__se_sys_open fs/open.c:1232 [inline]
__x64_sys_open+0x119/0x1c0 fs/open.c:1232
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: 0033:0x7f9e1dd9b840
RSP: 002b:00007ffcf449d458 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00005624878d8a00 RCX: 00007f9e1dd9b840
RDX: 0000562486b9cfe3 RSI: 00000000000a0800 RDI: 00005624878c4430
RBP: 00007ffcf449d5d0 R08: 0000562486b9c670 R09: 0000000000000010
R10: 00007f9e1db15d70 R11: 0000000000000246 R12: 00007ffcf449d520
R13: 00005624878c6ad0 R14: 0000000000000003 R15: 000000000000000e
INFO: task syz-executor.1:25268 blocked for more than 143 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27616 pid:25268 ppid: 14102 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common kernel/locking/mutex.c:680 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740
blkdev_put+0x97/0x9e0 block/bdev.c:914
blkdev_close+0x6a/0x80 block/fops.c:515
__fput+0x286/0x9f0 fs/file_table.c:280
task_work_run+0xdd/0x1a0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
exit_to_user_mode_prepare+0x27e/0x290 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7ff73992b72b
RSP: 002b:00007fff78313550 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007ff73992b72b
RDX: 0000001b2c6254a0 RSI: ffffffff813651d2 RDI: 0000000000000004
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2c624c0c
R10: 00000000000006a4 R11: 0000000000000293 R12: 00007ff739a8cb60
R13: 00007ff739a8cb60 R14: 00007ff739a8bf60 R15: 00000000000c3677
Showing all locks held in the system:
5 locks held by kworker/0:0/5:
#0: ffff8880b9c39a98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:478
#1: ffff8880b9c279c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3a6/0x490 kernel/sched/psi.c:880
#2: ffff8880b9c28070 (krc.lock){..-.}-{2:2}, at: kfree_rcu_work+0x32d/0xa10 kernel/rcu/tree.c:3286
#3: ffffffff906c7a78 (&obj_hash[i].lock){-.-.}-{2:2}, at: __debug_check_no_obj_freed lib/debugobjects.c:980 [inline]
#3: ffffffff906c7a78 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_check_no_obj_freed+0xc7/0x420 lib/debugobjects.c:1023
#4: ffffffff8c4691d8 (pool_lock){..-.}-{2:2}, at: __free_object+0x261/0xe00 lib/debugobjects.c:377
1 lock held by khungtaskd/27:
#0: ffffffff8bb83ae0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
1 lock held by in:imklog/6196:
#0: ffff88807eeae0f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
2 locks held by rs:main Q:Reg/6197:
1 lock held by systemd-udevd/25171:
#0: ffff88801a523918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb50 block/bdev.c:819
1 lock held by syz-executor.1/25268:
#0: ffff88801a523918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0x97/0x9e0 block/bdev.c:914
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc1-syzkaller #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:105
nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:295
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2965 Comm: systemd-journal Not tainted 5.16.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rcu_lockdep_current_cpu_online kernel/rcu/tree.c:1170 [inline]
RIP: 0010:rcu_lockdep_current_cpu_online+0x7f/0x150 kernel/rcu/tree.c:1160
Code: c1 ea 03 80 3c 02 00 0f 85 ad 00 00 00 48 03 1c ed a0 48 56 8b 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 18 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 90 00 00 00 48 8d 7b 20 48 8b 6b 18 48 b8 00 00
RSP: 0018:ffffc90001d2fee8 EFLAGS: 00000012
RAX: dffffc0000000000 RBX: ffff8880b9c3a900 RCX: 0000000000000000
RDX: 1ffff11017387523 RSI: 0000000000000002 RDI: ffff8880b9c3a918
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff817e2e05 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f94b8c3c8c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f94b637e000 CR3: 000000007b33a000 CR4: 0000000000350ef0
Call Trace:
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_irq_disable include/trace/events/preemptirq.h:36 [inline]
trace_hardirqs_off_finish kernel/trace/trace_preemptirq.c:67 [inline]
trace_hardirqs_off_finish+0xd1/0x270 kernel/trace/trace_preemptirq.c:61
__enter_from_user_mode kernel/entry/common.c:25 [inline]
syscall_enter_from_user_mode+0x1c/0x70 kernel/entry/common.c:104
do_syscall_64+0x16/0xb0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f94b7ed4f17
Code: ff ff ff 48 8b 4d a0 0f b7 51 fe 48 8b 4d a8 66 89 54 08 fe e9 1a ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 b8 27 00 00 00 0f 05 0f 1f 84 00 00 00 00 00 b8 6e 00 00 00 0f 05 c3 0f 1f 84 00 00
RSP: 002b:00007ffeff634d68 EFLAGS: 00000202 ORIG_RAX: 0000000000000027
RAX: ffffffffffffffda RBX: 000055b67b5d71e0 RCX: 00007f94b7ed4f17
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000055b67b5d71e0
RBP: 00007ffeff634e60 R08: 000000006196c53a R09: 00007ffeff684080
R10: 00007ffeff684080 R11: 0000000000000202 R12: 0000000000000b95
R13: 00007f94b893e147 R14: 0000000000000000 R15: 0005d116d2f8ce4c
----------------
Code disassembly (best guess):
0: c1 ea 03 shr $0x3,%edx
3: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
7: 0f 85 ad 00 00 00 jne 0xba
d: 48 03 1c ed a0 48 56 add -0x74a9b760(,%rbp,8),%rbx
14: 8b
15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
1c: fc ff df
1f: 48 8d 7b 18 lea 0x18(%rbx),%rdi
23: 48 89 fa mov %rdi,%rdx
26: 48 c1 ea 03 shr $0x3,%rdx
* 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction
2e: 0f 85 90 00 00 00 jne 0xc4
34: 48 8d 7b 20 lea 0x20(%rbx),%rdi
38: 48 8b 6b 18 mov 0x18(%rbx),%rbp
3c: 48 rex.W
3d: b8 .byte 0xb8