INFO: task udevd:5098 blocked for more than 143 seconds.
Not tainted 6.8.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:22712 pid:5098 tgid:5098 ppid:4509 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
wait_for_unix_gc+0x150/0x210 net/unix/garbage.c:201
unix_dgram_sendmsg+0x11a/0x2200 net/unix/af_unix.c:1924
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
sock_write_iter+0x2dd/0x400 net/socket.c:1160
call_write_iter include/linux/fs.h:2085 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa81/0xcb0 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fcf5f716bf2
RSP: 002b:00007ffed2e31478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcf5f716bf2
RDX: 0000000000000000 RSI: 00007ffed2e314cf RDI: 000000000000000a
RBP: 00007ffed2e314cf R08: 0000000000000001 R09: 0000000000000000
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a
R13: 00007fcf5fb7eae0 R14: 0000000000000000 R15: 00005653becb9910
INFO: task udevd:5104 blocked for more than 144 seconds.
Not tainted 6.8.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:23856 pid:5104 tgid:5104 ppid:4509 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
wait_for_unix_gc+0x150/0x210 net/unix/garbage.c:201
unix_dgram_sendmsg+0x11a/0x2200 net/unix/af_unix.c:1924
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
sock_write_iter+0x2dd/0x400 net/socket.c:1160
call_write_iter include/linux/fs.h:2085 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa81/0xcb0 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fcf5f716bf2
RSP: 002b:00007ffed2e31478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcf5f716bf2
RDX: 0000000000000000 RSI: 00007ffed2e314cf RDI: 000000000000000a
RBP: 00007ffed2e314cf R08: 0000000000000001 R09: 0000000000000000
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a
R13: 00007fcf5fb7eae0 R14: 0000000000000000 R15: 00005653becb9910
INFO: task udevd:5107 blocked for more than 144 seconds.
Not tainted 6.8.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:22168 pid:5107 tgid:5107 ppid:4509 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
wait_for_unix_gc+0x150/0x210 net/unix/garbage.c:201
unix_dgram_sendmsg+0x11a/0x2200 net/unix/af_unix.c:1924
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
sock_write_iter+0x2dd/0x400 net/socket.c:1160
call_write_iter include/linux/fs.h:2085 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa81/0xcb0 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fcf5f716bf2
RSP: 002b:00007ffed2e31478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcf5f716bf2
RDX: 0000000000000000 RSI: 00007ffed2e314cf RDI: 000000000000000a
RBP: 00007ffed2e314cf R08: 0000000000000001 R09: 0000000000000000
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a
R13: 00007fcf5fb7eae0 R14: 0000000000000000 R15: 00005653becb9910
INFO: task udevd:6242 blocked for more than 145 seconds.
Not tainted 6.8.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:23856 pid:6242 tgid:6242 ppid:4509 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
wait_for_unix_gc+0x150/0x210 net/unix/garbage.c:201
unix_dgram_sendmsg+0x11a/0x2200 net/unix/af_unix.c:1924
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
sock_write_iter+0x2dd/0x400 net/socket.c:1160
call_write_iter include/linux/fs.h:2085 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa81/0xcb0 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fcf5f716bf2
RSP: 002b:00007ffed2e31478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcf5f716bf2
RDX: 0000000000000000 RSI: 00007ffed2e314cf RDI: 000000000000000a
RBP: 00007ffed2e314cf R08: 0000000000000001 R09: 0000000000000000
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a
R13: 00007fcf5fb7eae0 R14: 0000000000000000 R15: 00005653becb9910
INFO: task syz-executor.2:27539 blocked for more than 145 seconds.
Not tainted 6.8.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:26840 pid:27539 tgid:27538 ppid:5090 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
wait_for_unix_gc+0x150/0x210 net/unix/garbage.c:201
unix_stream_sendmsg+0xd2/0x1230 net/unix/af_unix.c:2200
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
____sys_sendmsg+0x525/0x7d0 net/socket.c:2584
___sys_sendmsg net/socket.c:2638 [inline]
__sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f343e47dda9
RSP: 002b:00007f343d7ff0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f343e5abf80 RCX: 00007f343e47dda9
RDX: 0000000000000000 RSI: 0000000020000d00 RDI: 0000000000000003
RBP: 00007f343e4ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f343e5abf80 R15: 00007ffe55ef84d8
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8e130ae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#0: ffffffff8e130ae0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#0: ffffffff8e130ae0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by kworker/u4:6/2386:
2 locks held by getty/4814:
#0: ffff88802b22b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002efe2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
1 lock held by syz-executor.0/27533:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc5-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+0x1e7/0x2e0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 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+0xfaf/0xff0 kernel/hung_task.c:379
kthread+0x2ef/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7060 Comm: kworker/u4:16 Not tainted 6.8.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:__task_state_match kernel/sched/core.c:2257 [inline]
RIP: 0010:ttwu_state_match kernel/sched/core.c:4080 [inline]
RIP: 0010:try_to_wake_up+0x10a/0x1470 kernel/sched/core.c:4255
Code: 00 0f 85 c2 08 00 00 49 89 dc 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 04 84 c0 0f 85 13 09 00 00 8b 03 44 21 e8 <4c> 89 74 24 30 0f 84 ec 03 00 00 48 89 5c 24 48 48 8b 5c 24 10 4c
RSP: 0018:ffffc900098ffa60 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff88802a118018 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffffc900098ff940
RBP: ffffc900098ffb98 R08: 0000000000000003 R09: fffff5200131ff28
R10: dffffc0000000000 R11: fffff5200131ff28 R12: 1ffff11005423003
R13: 0000000000000003 R14: ffff88802a1189e0 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00077e000 CR3: 0000000011cfc000 CR4: 00000000003506f0
Call Trace:
kick_pool+0x2f4/0x3d0 kernel/workqueue.c:1148
process_one_work kernel/workqueue.c:2595 [inline]
process_scheduled_works+0x72d/0x1420 kernel/workqueue.c:2706
worker_thread+0xa5f/0x1000 kernel/workqueue.c:2787
kthread+0x2ef/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242