INFO: task udevd:3643 blocked for more than 143 seconds.
Not tainted 6.0.0-rc6-next-20220923-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:27064 pid:3643 ppid:2976 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5194 [inline]
__schedule+0xbd2/0x55b0 kernel/sched/core.c:6506
schedule+0xda/0x1b0 kernel/sched/core.c:6582
io_schedule+0xba/0x130 kernel/sched/core.c:8726
folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1296
__folio_lock mm/filemap.c:1659 [inline]
folio_lock include/linux/pagemap.h:939 [inline]
folio_lock include/linux/pagemap.h:935 [inline]
__filemap_get_folio+0xb76/0xd90 mm/filemap.c:1931
truncate_inode_pages_range+0x382/0x1020 mm/truncate.c:378
kill_bdev block/bdev.c:76 [inline]
blkdev_flush_mapping+0x140/0x2f0 block/bdev.c:662
blkdev_put_whole+0xd1/0xf0 block/bdev.c:693
blkdev_put+0x226/0x770 block/bdev.c:953
blkdev_close+0x64/0x80 block/fops.c:499
__fput+0x27c/0xa90 fs/file_table.c:320
task_work_run+0x16b/0x270 kernel/task_work.c:179
exit_task_work include/linux/task_work.h:38 [inline]
do_exit+0xb35/0x2a20 kernel/exit.c:820
do_group_exit+0xd0/0x2a0 kernel/exit.c:950
get_signal+0x21a6/0x2430 kernel/signal.c:2858
arch_do_signal_or_restart+0x82/0x2300 arch/x86/kernel/signal.c:869
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:296
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fef98f25697
RSP: 002b:00007ffc797bb0f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: 0000000000000008 RBX: 000056116baefd30 RCX: 00007fef98f25697
RDX: 00000000000a0800 RSI: 000056116badcb80 RDI: 00000000ffffff9c
RBP: 000056116badcb80 R08: 0000000000000001 R09: 00007ffc797ea080
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000056116bad4790 R14: 00007ffc797bb19c R15: 000056116baba910
INFO: task syz-executor117:3651 blocked for more than 143 seconds.
Not tainted 6.0.0-rc6-next-20220923-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor117 state:D stack:29168 pid:3651 ppid:3639 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5194 [inline]
__schedule+0xbd2/0x55b0 kernel/sched/core.c:6506
schedule+0xda/0x1b0 kernel/sched/core.c:6582
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6641
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa44/0x1350 kernel/locking/mutex.c:747
blkdev_get_by_dev.part.0+0x9b/0xb90 block/bdev.c:813
blkdev_get_by_dev+0x6b/0x80 block/bdev.c:856
blkdev_open+0x13c/0x2c0 block/fops.c:485
do_dentry_open+0x6cc/0x13f0 fs/open.c:882
do_open fs/namei.c:3557 [inline]
path_openat+0x1c92/0x28f0 fs/namei.c:3691
do_filp_open+0x1b6/0x400 fs/namei.c:3718
do_sys_openat2+0x16d/0x4c0 fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1337
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+0x63/0xcd
RIP: 0033:0x7f28984acc24
RSP: 002b:00007f289849ce70 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f28984acc24
RDX: 0000000000000000 RSI: 00007f289849cef0 RDI: 00000000ffffff9c
RBP: 00007f289849cef0 R08: 0000000000000000 R09: 00007f289849d700
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007f28985411a4 R14: 64626e2f7665642f R15: 0000000000022000
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.0.0-rc6-next-20220923-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x32f/0x3c0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xc6b/0xfc0 kernel/hung_task.c:369
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.0.0-rc6-next-20220923-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:__sanitizer_cov_trace_pc+0x37/0x60 kernel/kcov.c:207
Code: 81 e1 00 01 00 00 65 48 8b 14 25 80 6f 02 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 94 15 00 00 85 c0 74 2b 8b 82 70 15 00 00 <83> f8 02 75 20 48 8b 8a 78 15 00 00 8b 92 74 15 00 00 48 8b 01 48
RSP: 0018:ffffc90000187cf8 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000000000
RDX: ffff888011a83a80 RSI: ffffffff86819508 RDI: 0000000000000004
RBP: 0000000000a0411a R08: 0000000000000004 R09: 00000000000108fb
R10: 00000000000023ef R11: 0000000000000001 R12: ffff8880b9b38474
R13: 00000000000108fb R14: 00000000000023ef R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c927cec680 CR3: 00000000252ed000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
get_typical_interval drivers/cpuidle/governors/menu.c:215 [inline]
menu_select+0x5f8/0x1900 drivers/cpuidle/governors/menu.c:312
cpuidle_idle_call kernel/sched/idle.c:229 [inline]
do_idle+0x37f/0x590 kernel/sched/idle.c:303
cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:400
start_secondary+0x252/0x300 arch/x86/kernel/smpboot.c:262
secondary_startup_64_no_verify+0xce/0xdb