INFO: task syslogd:2958 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:syslogd state:D stack:25504 pid:2958 ppid:1 flags:0x00000000
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
rwsem_down_read_slowpath+0x59f/0xb10 kernel/locking/rwsem.c:1095
__down_read_common kernel/locking/rwsem.c:1260 [inline]
__down_read kernel/locking/rwsem.c:1269 [inline]
down_read+0xe2/0x450 kernel/locking/rwsem.c:1511
inode_lock_shared include/linux/fs.h:766 [inline]
lookup_slow fs/namei.c:1701 [inline]
walk_component+0x332/0x5a0 fs/namei.c:1993
link_path_walk.part.0+0x74e/0xe20 fs/namei.c:2320
link_path_walk fs/namei.c:2245 [inline]
path_openat+0x262/0x28f0 fs/namei.c:3687
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: 0033:0x7f1961201697
RSP: 002b:00007fff6e700fb0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000560d470e9910 RCX: 00007f1961201697
RDX: 0000000000000d41 RSI: 00007f196138f99a RDI: 00000000ffffff9c
RBP: 00007f196138f99a R08: 00007f1961291040 R09: 00007f19612910c0
R10: 00000000000001b6 R11: 0000000000000246 R12: 0000000000000d41
R13: 0000560d470e9a50 R14: 0000000000000003 R15: 0000560d470e9a60
INFO: task udevd:2976 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:27648 pid:2976 ppid:1 flags:0x00000000
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
fuse_lock_inode+0xce/0x100 fs/fuse/inode.c:468
fuse_lookup.part.0+0x86/0x390 fs/fuse/dir.c:432
fuse_lookup+0x70/0x90 fs/fuse/dir.c:429
__lookup_slow+0x24c/0x460 fs/namei.c:1685
lookup_slow fs/namei.c:1702 [inline]
walk_component+0x33f/0x5a0 fs/namei.c:1993
link_path_walk.part.0+0x74e/0xe20 fs/namei.c:2320
link_path_walk fs/namei.c:2245 [inline]
path_openat+0x262/0x28f0 fs/namei.c:3687
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: 0033:0x7f1da4d25697
RSP: 002b:00007ffff2ab0980 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000056529057e040 RCX: 00007f1da4d25697
RDX: 0000000000080141 RSI: 00005652905610d8 RDI: 00000000ffffff9c
RBP: 00005652905610d8 R08: 00000000ffffffff R09: 0000000000000000
R10: 00000000000001a4 R11: 0000000000000246 R12: 0000000000080141
R13: ffffffffffffffff R14: 00000000ffffffff R15: 00000000ffffffff
INFO: task syz-executor457:3615 blocked for more than 144 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-executor457 state:D stack:28184 pid:3615 ppid:3612 flags:0x00004000
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
rwsem_down_read_slowpath+0x59f/0xb10 kernel/locking/rwsem.c:1095
__down_read_common kernel/locking/rwsem.c:1260 [inline]
__down_read kernel/locking/rwsem.c:1269 [inline]
down_read+0xe2/0x450 kernel/locking/rwsem.c:1511
inode_lock_shared include/linux/fs.h:766 [inline]
lookup_slow fs/namei.c:1701 [inline]
walk_component+0x332/0x5a0 fs/namei.c:1993
link_path_walk.part.0+0x74e/0xe20 fs/namei.c:2320
link_path_walk fs/namei.c:2245 [inline]
path_openat+0x262/0x28f0 fs/namei.c:3687
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: 0033:0x7f2c5fc0cd78
RSP: 002b:00007ffd24e01940 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007ffd24e019b0 RCX: 00007f2c5fc0cd78
RDX: 0000000000090800 RSI: 00007f2c5fc63004 RDI: 00000000ffffff9c
RBP: 0000000000000e20 R08: 0000000000090800 R09: 00007f2c5fc63004
R10: 0000000000000000 R11: 0000000000000287 R12: 00007ffd24e01b34
R13: 00007ffd24e01b34 R14: 0000000000000000 R15: 0000000000000000
INFO: task syz-executor457:3617 blocked for more than 144 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-executor457 state:D stack:27328 pid:3617 ppid:3615 flags:0x00004004
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
request_wait_answer+0x46d/0x850 fs/fuse/dev.c:407
__fuse_request_send fs/fuse/dev.c:426 [inline]
fuse_simple_request+0x71d/0xe50 fs/fuse/dev.c:511
fuse_lookup_name+0x280/0x630 fs/fuse/dir.c:392
fuse_lookup.part.0+0xdf/0x390 fs/fuse/dir.c:433
fuse_lookup+0x70/0x90 fs/fuse/dir.c:429
__lookup_slow+0x24c/0x460 fs/namei.c:1685
lookup_slow fs/namei.c:1702 [inline]
walk_component+0x33f/0x5a0 fs/namei.c:1993
link_path_walk.part.0+0x74e/0xe20 fs/namei.c:2320
link_path_walk fs/namei.c:2245 [inline]
path_openat+0x262/0x28f0 fs/namei.c:3687
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: 0033:0x7f2c5fc0d0a9
RSP: 002b:00007f2c5fbbe2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f2c5fc984c0 RCX: 00007f2c5fc0d0a9
RDX: 0000000000000042 RSI: 0000000020002080 RDI: ffffffffffffff9c
RBP: 00007f2c5fc65084 R08: 0000000000000065 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000065
R13: 00007f2c5fc650a8 R14: 31f4000000000002 R15: 00007f2c5fc984c8
INFO: task syz-executor457:3619 blocked for more than 144 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-executor457 state:D stack:28520 pid:3619 ppid:3615 flags:0x00004004
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
rwsem_down_write_slowpath+0x5fc/0x12d0 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write_common kernel/locking/rwsem.c:1302 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write_nested+0x1e8/0x220 kernel/locking/rwsem.c:1673
inode_lock_nested include/linux/fs.h:791 [inline]
fuse_reverse_inval_entry+0x51/0x550 fs/fuse/dir.c:1167
fuse_notify_delete fs/fuse/dev.c:1556 [inline]
fuse_notify fs/fuse/dev.c:1805 [inline]
fuse_dev_do_write+0x1aab/0x2c00 fs/fuse/dev.c:1880
fuse_dev_write+0x150/0x1e0 fs/fuse/dev.c:1964
call_write_iter include/linux/fs.h:2190 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x9e9/0xdd0 fs/read_write.c:578
ksys_write+0x127/0x250 fs/read_write.c:631
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: 0033:0x7f2c5fc0d0a9
RSP: 002b:00007f2c5fb9d2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f2c5fc984d0 RCX: 00007f2c5fc0d0a9
RDX: 000000000000002c RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007f2c5fc65084 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 00007f2c5fc650a8 R14: 31f4000000000002 R15: 00007f2c5fc984d8
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 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt+0x6f/0xb0 drivers/acpi/processor_idle.c:112