INFO: task dhcpcd:4709 blocked for more than 143 seconds.
Not tainted 6.5.0-rc3-next-20230728-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd state:D stack:23400 pid:4709 ppid:4708 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x59f0 kernel/sched/core.c:6711
schedule+0xe7/0x1b0 kernel/sched/core.c:6787
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6846
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747
netlink_dump+0xc1/0xca0 net/netlink/af_netlink.c:2242
netlink_recvmsg+0xa93/0xed0 net/netlink/af_netlink.c:2021
sock_recvmsg_nosec net/socket.c:1022 [inline]
sock_recvmsg+0xe2/0x170 net/socket.c:1043
____sys_recvmsg+0x21f/0x5c0 net/socket.c:2715
___sys_recvmsg+0x115/0x1a0 net/socket.c:2757
__sys_recvmsg+0x114/0x1e0 net/socket.c:2787
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f37c62f291e
RSP: 002b:00007fffbf5b4048 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007fffbf5b5170 RCX: 00007f37c62f291e
RDX: 0000000000000000 RSI: 00007fffbf5b5090 RDI: 0000000000000018
RBP: 00007fffbf5b5100 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000000f9 R11: 0000000000000246 R12: 0000000000000e84
R13: 00007fffbf5b5074 R14: 00007fffbf5b5090 R15: 00007fffbf5b5080
INFO: task kworker/0:4:30428 blocked for more than 143 seconds.
Not tainted 6.5.0-rc3-next-20230728-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:4 state:D stack:22904 pid:30428 ppid:2 flags:0x00004000
Workqueue: events switchdev_deferred_process_work
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x59f0 kernel/sched/core.c:6711
schedule+0xe7/0x1b0 kernel/sched/core.c:6787
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6846
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747
switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:75
process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2603
worker_thread+0x687/0x1110 kernel/workqueue.c:2754
kthread+0x33a/0x430 kernel/kthread.c:389
ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
INFO: task kworker/0:2:22572 blocked for more than 143 seconds.
Not tainted 6.5.0-rc3-next-20230728-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:2 state:D stack:23312 pid:22572 ppid:2 flags:0x00004000
Workqueue: events linkwatch_event
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x59f0 kernel/sched/core.c:6711
schedule+0xe7/0x1b0 kernel/sched/core.c:6787
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6846
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747
linkwatch_event+0x51/0xc0 net/core/link_watch.c:277
process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2603
worker_thread+0x687/0x1110 kernel/workqueue.c:2754
kthread+0x33a/0x430 kernel/kthread.c:389
ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
INFO: task syz-executor.3:17642 blocked for more than 144 seconds.
Not tainted 6.5.0-rc3-next-20230728-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:28064 pid:17642 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x59f0 kernel/sched/core.c:6711
schedule+0xe7/0x1b0 kernel/sched/core.c:6787
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6846
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747
rtnl_lock net/core/rtnetlink.c:78 [inline]
rtnetlink_rcv_msg+0x3e2/0xd30 net/core/rtnetlink.c:6420
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2575
netlink_unicast_kernel net/netlink/af_netlink.c:1344 [inline]
netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1370
netlink_sendmsg+0x93c/0xe40 net/netlink/af_netlink.c:1939
sock_sendmsg_nosec net/socket.c:727 [inline]
sock_sendmsg+0xd9/0x180 net/socket.c:750
__sys_sendto+0x255/0x340 net/socket.c:2136
__do_sys_sendto net/socket.c:2148 [inline]
__se_sys_sendto net/socket.c:2144 [inline]
__x64_sys_sendto+0xe0/0x1b0 net/socket.c:2144
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2125c7e81c
RSP: 002b:00007ffe906aa830 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f21268c4620 RCX: 00007f2125c7e81c
RDX: 0000000000000028 RSI: 00007f21268c4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffe906aa884 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f21268c4670 R15: 0000000000000000
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.5.0-rc3-next-20230728-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x277/0x380 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x2ac/0x310 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xfab/0x1230 kernel/hung_task.c:379
kthread+0x33a/0x430 kernel/kthread.c:389
ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
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:48 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt+0x1b/0x20 drivers/acpi/processor_idle.c:112