INFO: task klogd:2990 blocked for more than 143 seconds.
Not tainted 6.1.78-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:klogd state:D stack:23880 pid:2990 ppid:1 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
wait_for_unix_gc+0x14c/0x210 net/unix/garbage.c:201
unix_dgram_sendmsg+0x113/0x2050 net/unix/af_unix.c:1899
sock_sendmsg_nosec net/socket.c:718 [inline]
__sock_sendmsg net/socket.c:730 [inline]
__sys_sendto+0x480/0x600 net/socket.c:2148
__do_sys_sendto net/socket.c:2160 [inline]
__se_sys_sendto net/socket.c:2156 [inline]
__x64_sys_sendto+0xda/0xf0 net/socket.c:2156
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe8d40a59b5
RSP: 002b:00007ffcf4362118 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe8d40a59b5
RDX: 000000000000005c RSI: 00005560050b6130 RDI: 0000000000000003
RBP: 00005560050b1910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013
R13: 00007fe8d4233212 R14: 00007ffcf4362218 R15: 0000000000000000
INFO: task dhcpcd:3215 blocked for more than 143 seconds.
Not tainted 6.1.78-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd state:D stack:20744 pid:3215 ppid:3214 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
wait_for_unix_gc+0x14c/0x210 net/unix/garbage.c:201
unix_dgram_sendmsg+0x113/0x2050 net/unix/af_unix.c:1899
sock_sendmsg_nosec net/socket.c:718 [inline]
__sock_sendmsg net/socket.c:730 [inline]
sock_write_iter+0x394/0x4e0 net/socket.c:1143
do_iter_write+0x6e6/0xc50 fs/read_write.c:861
vfs_writev fs/read_write.c:934 [inline]
do_writev+0x27b/0x460 fs/read_write.c:977
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f529268fe03
RSP: 002b:00007fffe4ad4de8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007f52925c16c0 RCX: 00007f529268fe03
RDX: 0000000000000002 RSI: 00007fffe4ad4e30 RDI: 000000000000000b
RBP: 00007fffe4af5198 R08: 00007fffe4ad4940 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000f80 R14: 00007fffe4ad4e10 R15: 0000000000000000
INFO: task udevd:3897 blocked for more than 144 seconds.
Not tainted 6.1.78-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:26680 pid:3897 ppid:3001 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
wait_for_unix_gc+0x14c/0x210 net/unix/garbage.c:201
unix_dgram_sendmsg+0x113/0x2050 net/unix/af_unix.c:1899
sock_sendmsg_nosec net/socket.c:718 [inline]
__sock_sendmsg net/socket.c:730 [inline]
sock_write_iter+0x394/0x4e0 net/socket.c:1143
call_write_iter include/linux/fs.h:2249 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x7ae/0xba0 fs/read_write.c:584
ksys_write+0x19c/0x2c0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcef7f16bf2
RSP: 002b:00007fff67da41e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcef7f16bf2
RDX: 0000000000000000 RSI: 00007fff67da423f RDI: 000000000000000a
RBP: 00007fff67da423f R08: 0000000000000001 R09: ef3429c9b8af749f
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a
R13: 00007fcef832bae0 R14: 0000000000000000 R15: 00005651908f5910
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d12a910 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8d12b110 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516
1 lock held by khungtaskd/28:
#0: ffffffff8d12a740 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:318 [inline]
#0: ffffffff8d12a740 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:759 [inline]
#0: ffffffff8d12a740 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6494
2 locks held by getty/3298:
#0: ffff88814167e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a7/0x1db0 drivers/tty/n_tty.c:2188
1 lock held by syz-executor.0/3973:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.78-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x4e1/0x560 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b0/0x3f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xf88/0xfd0 kernel/hung_task.c:377
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3577 Comm: kworker/u4:4 Not tainted 6.1.78-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: bat_events batadv_nc_worker
RIP: 0010:batadv_nc_process_nc_paths+0x316/0x390
Code: 70 76 0e f7 48 8b 74 24 10 ff c6 48 b8 00 00 00 00 00 fc ff df 48 8b 4c 24 20 0f b6 04 01 84 c0 48 8b 14 24 75 13 3b 32 73 30 <48> 89 74 24 10 e8 40 82 2e f7 e9 5a fd ff ff 89 d1 80 e1 07 80 c1
RSP: 0018:ffffc9000412fb88 EFLAGS: 00000287
RAX: 0000000000000000 RBX: ffff88807838cc80 RCX: 1ffff1100e87cc8a
RDX: ffff8880743e6450 RSI: 000000000000005b RDI: ffffffff8b3d0e80
RBP: ffff8880743e6440 R08: dffffc0000000000 R09: fffffbfff1ce687e
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807838cc80
R13: 1ffff1100f071af4 R14: ffff88801e664ad0 R15: ffffffff8a5bff00
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb6337a80c0 CR3: 000000000ce8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
batadv_nc_worker+0x528/0x610 net/batman-adv/network-coding.c:735
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306