INFO: task klogd:4511 blocked for more than 143 seconds.
Not tainted 6.8.0-rc4-syzkaller-00410-gc02197fc9076 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:klogd state:D stack:23800 pid:4511 tgid:4511 ppid:1 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 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
__sys_sendto+0x3a4/0x4f0 net/socket.c:2191
__do_sys_sendto net/socket.c:2203 [inline]
__se_sys_sendto net/socket.c:2199 [inline]
__x64_sys_sendto+0xde/0x100 net/socket.c:2199
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fd6faa219b5
RSP: 002b:00007ffc5df390e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6faa219b5
RDX: 0000000000000077 RSI: 0000557086cc3ea0 RDI: 0000000000000003
RBP: 0000557086cbc910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013
R13: 00007fd6fabaf212 R14: 00007ffc5df391e8 R15: 0000000000000000
INFO: task dhcpcd:4735 blocked for more than 143 seconds.
Not tainted 6.8.0-rc4-syzkaller-00410-gc02197fc9076 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd state:D stack:23664 pid:4735 tgid:4735 ppid:1 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 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: 0033:0x7f062d85fbf2
RSP: 002b:00007ffe215e0188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000056370b4b7e00 RCX: 00007f062d85fbf2
RDX: 0000000000000047 RSI: 00007ffe215e01a0 RDI: 0000000000000005
RBP: 00007ffe215e01a0 R08: 0000000000000008 R09: 0000000000000036
R10: 0000000000000000 R11: 0000000000000246 R12: 000056370a101efc
R13: 00007ffe215e05d0 R14: 000056370b54b380 R15: 0000000000000001
INFO: task udevd:1703 blocked for more than 144 seconds.
Not tainted 6.8.0-rc4-syzkaller-00410-gc02197fc9076 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:25200 pid:1703 tgid:1703 ppid:4522 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 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: 0033:0x7f54bdd9bbf2
RSP: 002b:00007ffd12139b98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f54bdd9bbf2
RDX: 0000000000000000 RSI: 00007ffd12139bef RDI: 000000000000000a
RBP: 00007ffd12139bef R08: 0000000000000001 R09: 0000000000000000
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a
R13: 00007f54bdcc5ae0 R14: 0000000000000000 R15: 000056400bbbc910
INFO: task udevd:1706 blocked for more than 145 seconds.
Not tainted 6.8.0-rc4-syzkaller-00410-gc02197fc9076 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:25776 pid:1706 tgid:1706 ppid:4522 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 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: 0033:0x7f54bdd9bbf2
RSP: 002b:00007ffd12139b98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f54bdd9bbf2
RDX: 0000000000000000 RSI: 00007ffd12139bef RDI: 000000000000000a
RBP: 00007ffd12139bef R08: 0000000000000001 R09: 48fe5be353a573e8
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000a
R13: 00007f54bdcc5ae0 R14: 0000000000000000 R15: 000056400bbbc910
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/u4:9/4067:
2 locks held by getty/4820:
#0: ffff88802b4170a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
1 lock held by syz-executor.3/3833:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc4-syzkaller-00410-gc02197fc9076 #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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3833 Comm: syz-executor.3 Not tainted 6.8.0-rc4-syzkaller-00410-gc02197fc9076 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:get_current arch/x86/include/asm/current.h:42 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:206
Code: 8b 3d f4 b5 1a 0c 48 89 de 5b e9 23 cc 56 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0d 00 53 70 7e 65 8b 15 01 53 70 7e f7 c2 00 01 ff 00 74
RSP: 0018:ffffc9001357fb78 EFLAGS: 00000246
RAX: ffffffff8a093e83 RBX: ffff88809ddfb770 RCX: ffff8880293b1dc0
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc9001357fcf0 R08: ffffffff8937359d R09: 1ffff110056f6e6c
R10: dffffc0000000000 R11: ffffed10056f6e6d R12: 1ffff11013bbf6ee
R13: ffffc9001357fbe0 R14: 0000000000000000 R15: ffffffff8f479820
FS: 000055555586d480(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f25fe77c038 CR3: 000000008f0aa000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
unix_gc+0x1053/0x1330 net/unix/garbage.c:320
unix_release_sock+0xadd/0xd20 net/unix/af_unix.c:683
unix_release+0x91/0xc0 net/unix/af_unix.c:1064
__sock_release net/socket.c:659 [inline]
sock_close+0xbc/0x240 net/socket.c:1421
__fput+0x429/0x8a0 fs/file_table.c:376
__do_sys_close fs/open.c:1554 [inline]
__se_sys_close fs/open.c:1539 [inline]
__x64_sys_close+0x7e/0x110 fs/open.c:1539
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f960a07cc9a
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24
RSP: 002b:00007f960a2cfb10 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f960a07cc9a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 0000000000000032 R08: 0000001b32320000 R09: 0000000000000007
R10: 000000008135d5c6 R11: 0000000000000293 R12: 00007f9609c0b1b0
R13: ffffffffffffffff R14: 00007f9609c00000 R15: 000000000010fec5