INFO: task systemd-udevd:5547 blocked for more than 143 seconds.
Not tainted 5.16.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:systemd-udevd state:D stack:25936 pid: 5547 ppid: 2972 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common+0xd1f/0x2590 kernel/locking/mutex.c:680
__mutex_lock kernel/locking/mutex.c:740 [inline]
mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:792
blkdev_get_by_dev+0xf7/0xba0 block/bdev.c:817
blkdev_open+0x137/0x2f0 block/fops.c:501
do_dentry_open+0x78b/0x1020 fs/open.c:822
do_open fs/namei.c:3426 [inline]
path_openat+0x2896/0x3660 fs/namei.c:3559
do_filp_open+0x277/0x4f0 fs/namei.c:3586
do_sys_openat2+0x13b/0x500 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+0x221/0x270 fs/open.c:1232
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f64424f3840
RSP: 002b:00007ffe184d40f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 000055dbb7a49ec0 RCX: 00007f64424f3840
RDX: 000055dbb6364fe3 RSI: 00000000000a0800 RDI: 000055dbb7a586f0
RBP: 00007ffe184d4270 R08: 000055dbb6364670 R09: 0000000000000010
R10: 000055dbb6364d0c R11: 0000000000000246 R12: 00007ffe184d41c0
R13: 000055dbb7a5ee10 R14: 0000000000000003 R15: 000000000000000e
INFO: task syz-executor.5:5675 blocked for more than 143 seconds.
Not tainted 5.16.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:27088 pid: 5675 ppid: 6526 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common+0xd1f/0x2590 kernel/locking/mutex.c:680
__mutex_lock kernel/locking/mutex.c:740 [inline]
mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:792
blkdev_put+0xf8/0x7a0 block/bdev.c:915
blkdev_close+0x58/0x80 block/fops.c:515
__fput+0x3fc/0x870 fs/file_table.c:280
task_work_run+0x146/0x1c0 kernel/task_work.c:164
get_signal+0x2078/0x2120 kernel/signal.c:2624
arch_do_signal_or_restart+0x9c/0x730 arch/x86/kernel/signal.c:868
handle_signal_work kernel/entry/common.c:148 [inline]
exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
exit_to_user_mode_prepare+0x191/0x220 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x2e/0x70 kernel/entry/common.c:300
do_syscall_64+0x53/0xd0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc272f17b19
RSP: 002b:00007fc271e8d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: fffffffffffffe00 RBX: 00007fc27302af60 RCX: 00007fc272f17b19
RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000004
RBP: 00007fc272f71f9f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd25c3c1af R14: 00007fc271e8d300 R15: 0000000000022000
INFO: task syz-executor.5:5680 blocked for more than 143 seconds.
Not tainted 5.16.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:24248 pid: 5680 ppid: 6526 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
io_schedule+0x83/0x100 kernel/sched/core.c:8371
folio_wait_bit_common+0x8aa/0xe00 mm/filemap.c:1371
folio_wait_bit mm/filemap.c:1431 [inline]
folio_wait_locked include/linux/pagemap.h:851 [inline]
wait_on_page_locked include/linux/pagemap.h:863 [inline]
wait_on_page_read+0x103/0x3d0 mm/filemap.c:3430
do_read_cache_page+0x8b5/0xdc0 mm/filemap.c:3473
read_mapping_page include/linux/pagemap.h:651 [inline]
read_part_sector+0xd4/0x4d0 block/partitions/core.c:728
adfspart_check_ICS+0xc0/0xa70 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+0x789/0x16a0 block/partitions/core.c:699
blkdev_get_whole+0x32f/0x3d0 block/bdev.c:684
blkdev_get_by_dev+0x2ff/0xba0 block/bdev.c:826
blkdev_open+0x137/0x2f0 block/fops.c:501
do_dentry_open+0x78b/0x1020 fs/open.c:822
do_open fs/namei.c:3426 [inline]
path_openat+0x2896/0x3660 fs/namei.c:3559
do_filp_open+0x277/0x4f0 fs/namei.c:3586
do_sys_openat2+0x13b/0x500 fs/open.c:1212
do_sys_open fs/open.c:1228 [inline]
__do_sys_openat fs/open.c:1244 [inline]
__se_sys_openat fs/open.c:1239 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1239
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc272ecaa34
RSP: 002b:00007fc271e6bcc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007fc272ecaa34
RDX: 0000000000101000 RSI: 00007fc271e6bd60 RDI: 00000000ffffff9c
RBP: 00007fc271e6bd60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000101000
R13: 00007ffd25c3c1af R14: 00007fc271e6c300 R15: 0000000000022000
INFO: task syz-executor.5:5708 blocked for more than 144 seconds.
Not tainted 5.16.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:27088 pid: 5708 ppid: 6526 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common+0xd1f/0x2590 kernel/locking/mutex.c:680
__mutex_lock kernel/locking/mutex.c:740 [inline]
mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:792
blkdev_get_by_dev+0xf7/0xba0 block/bdev.c:817
blkdev_open+0x137/0x2f0 block/fops.c:501
do_dentry_open+0x78b/0x1020 fs/open.c:822
do_open fs/namei.c:3426 [inline]
path_openat+0x2896/0x3660 fs/namei.c:3559
do_filp_open+0x277/0x4f0 fs/namei.c:3586
do_sys_openat2+0x13b/0x500 fs/open.c:1212
do_sys_open fs/open.c:1228 [inline]
__do_sys_openat fs/open.c:1244 [inline]
__se_sys_openat fs/open.c:1239 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1239
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc272ecaa34
RSP: 002b:00007fc271e4acc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007fc272ecaa34
RDX: 0000000000000000 RSI: 00007fc271e4ad60 RDI: 00000000ffffff9c
RBP: 00007fc271e4ad60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ffd25c3c1af R14: 00007fc271e4b300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8cb1db40 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by in:imklog/6210:
#0: ffff888078fed9f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 fs/file.c:990
4 locks held by kworker/0:12/9491:
1 lock held by systemd-udevd/5547:
#0: ffff88801b1fd918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xf7/0xba0 block/bdev.c:817
1 lock held by syz-executor.5/5675:
#0: ffff88801b1fd918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf8/0x7a0 block/bdev.c:915
1 lock held by syz-executor.5/5680:
#0: ffff88801b1fd918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xf7/0xba0 block/bdev.c:817
1 lock held by syz-executor.5/5708:
#0: ffff88801b1fd918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xf7/0xba0 block/bdev.c:817
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc3-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+0x1dc/0x2d8 lib/dump_stack.c:106
nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x16a/0x280 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+0xc82/0xcd0 kernel/hung_task.c:295
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 44 Comm: kworker/u4:2 Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_nc_worker
RIP: 0010:lock_acquire+0x6/0x4d0 kernel/locking/lockdep.c:5605
Code: ff 48 c7 c7 68 c0 fe 8d e8 17 73 6a 00 e9 a4 fd ff ff 66 90 65 8b 05 f1 86 9c 7e a9 00 ff ff 00 0f 95 c0 c3 55 48 89 e5 41 57 <41> 56 41 55 41 54 53 48 83 e4 e0 48 81 ec 20 01 00 00 41 89 cc 41
RSP: 0018:ffffc9000114fbd0 EFLAGS: 00000246
RAX: ffffffff89f0532a RBX: ffff888019d3b1c0 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8cb1db40
RBP: ffffc9000114fbd8 R08: 0000000000000000 R09: 0000000000000000
R10: fffffbfff1bfd196 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88801df3c000 R14: ffff888019d3b1d0 R15: 000000000000022b
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9da3185000 CR3: 000000007f13a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:268
rcu_read_lock include/linux/rcupdate.h:688 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline]
batadv_nc_worker+0xc8/0x5b0 net/batman-adv/network-coding.c:723
process_one_work+0x853/0x1140 kernel/workqueue.c:2298
worker_thread+0xac1/0x1320 kernel/workqueue.c:2445
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 48 c7 c7 68 c0 fe 8d mov $0xffffffff8dfec068,%rdi
7: e8 17 73 6a 00 callq 0x6a7323
c: e9 a4 fd ff ff jmpq 0xfffffdb5
11: 66 90 xchg %ax,%ax
13: 65 8b 05 f1 86 9c 7e mov %gs:0x7e9c86f1(%rip),%eax # 0x7e9c870b
1a: a9 00 ff ff 00 test $0xffff00,%eax
1f: 0f 95 c0 setne %al
22: c3 retq
23: 55 push %rbp
24: 48 89 e5 mov %rsp,%rbp
27: 41 57 push %r15
* 29: 41 56 push %r14 <-- trapping instruction
2b: 41 55 push %r13
2d: 41 54 push %r12
2f: 53 push %rbx
30: 48 83 e4 e0 and $0xffffffffffffffe0,%rsp
34: 48 81 ec 20 01 00 00 sub $0x120,%rsp
3b: 41 89 cc mov %ecx,%r12d
3e: 41 rex.B