INFO: task kworker/0:2:55 blocked for more than 143 seconds.
Not tainted 6.7.0-rc2-syzkaller-00265-gd2da77f431ac #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:2 state:D stack:23120 pid:55 tgid:55 ppid:2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_verify_work
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6a3/0xd60 kernel/locking/mutex.c:747
addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4679
process_one_work kernel/workqueue.c:2630 [inline]
process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2703
worker_thread+0xa5f/0x1000 kernel/workqueue.c:2784
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
INFO: task dhcpcd:4730 blocked for more than 143 seconds.
Not tainted 6.7.0-rc2-syzkaller-00265-gd2da77f431ac #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd state:D stack:20368 pid:4730 tgid:4730 ppid:4729 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6a3/0xd60 kernel/locking/mutex.c:747
rtnl_lock net/core/rtnetlink.c:79 [inline]
rtnetlink_rcv_msg+0x82c/0x1030 net/core/rtnetlink.c:6555
netlink_rcv_skb+0x1df/0x430 net/netlink/af_netlink.c:2545
netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline]
netlink_unicast+0x7e6/0x980 net/netlink/af_netlink.c:1368
netlink_sendmsg+0xa37/0xd70 net/netlink/af_netlink.c:1910
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg net/socket.c:745 [inline]
____sys_sendmsg+0x592/0x890 net/socket.c:2584
___sys_sendmsg net/socket.c:2638 [inline]
__sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f1a6b4d0a4b
RSP: 002b:00007fff5e46da58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f1a6b3f86c0 RCX: 00007f1a6b4d0a4b
RDX: 0000000000000000 RSI: 00007fff5e481c08 RDI: 0000000000000012
RBP: 0000000000000012 R08: 0000000000000000 R09: 00007fff5e481c08
R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff
R13: 00007fff5e481c08 R14: 0000000000000030 R15: 0000000000000001
INFO: task kworker/1:5:5157 blocked for more than 144 seconds.
Not tainted 6.7.0-rc2-syzkaller-00265-gd2da77f431ac #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:5 state:D stack:22352 pid:5157 tgid:5157 ppid:2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_verify_work
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6a3/0xd60 kernel/locking/mutex.c:747
addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4679
process_one_work kernel/workqueue.c:2630 [inline]
process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2703
worker_thread+0xa5f/0x1000 kernel/workqueue.c:2784
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
INFO: task syz-executor.3:29241 blocked for more than 144 seconds.
Not tainted 6.7.0-rc2-syzkaller-00265-gd2da77f431ac #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:21104 pid:29241 tgid:29241 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6a3/0xd60 kernel/locking/mutex.c:747
tun_detach drivers/net/tun.c:697 [inline]
tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3499
__fput+0x3cc/0xa10 fs/file_table.c:394
task_work_run+0x24a/0x300 kernel/task_work.c:180
exit_task_work include/linux/task_work.h:38 [inline]
do_exit+0xa34/0x2750 kernel/exit.c:871
do_group_exit+0x206/0x2c0 kernel/exit.c:1021
get_signal+0x1769/0x1840 kernel/signal.c:2904
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
exit_to_user_mode_prepare+0xb1/0x150 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x69/0x2a0 kernel/entry/common.c:296
do_syscall_64+0x52/0x110 arch/x86/entry/common.c:88
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f8ae8c7e7dc
RSP: 002b:00007ffebc5d3730 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: 0000000000000048 RBX: 00007f8ae98c4620 RCX: 00007f8ae8c7e7dc
RDX: 0000000000000048 RSI: 00007f8ae98c4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffebc5d3784 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f8ae98c4670 R15: 0000000000000000
INFO: task syz-executor.3:29303 blocked for more than 145 seconds.
Not tainted 6.7.0-rc2-syzkaller-00265-gd2da77f431ac #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:26512 pid:29303 tgid:29303 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6a3/0xd60 kernel/locking/mutex.c:747
rtnl_lock net/core/rtnetlink.c:79 [inline]
rtnetlink_rcv_msg+0x82c/0x1030 net/core/rtnetlink.c:6555
netlink_rcv_skb+0x1df/0x430 net/netlink/af_netlink.c:2545
netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline]
netlink_unicast+0x7e6/0x980 net/netlink/af_netlink.c:1368
netlink_sendmsg+0xa37/0xd70 net/netlink/af_netlink.c:1910
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg net/socket.c:745 [inline]
__sys_sendto+0x484/0x640 net/socket.c:2190
__do_sys_sendto net/socket.c:2202 [inline]
__se_sys_sendto net/socket.c:2198 [inline]
__x64_sys_sendto+0xde/0xf0 net/socket.c:2198
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fe15667e7dc
RSP: 002b:00007ffc3edcffe0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fe1572c4620 RCX: 00007fe15667e7dc
RDX: 0000000000000028 RSI: 00007fe1572c4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffc3edd0034 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
R13: 0000000000000000 R14: 00007fe1572c4670 R15: 0000000000000000
Showing all locks held in the system:
5 locks held by kworker/0:0/8:
1 lock held by khungtaskd/29:
#0: ffffffff8d92cf60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
#0: ffffffff8d92cf60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#0: ffffffff8d92cf60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
3 locks held by kworker/0:2/55:
#0: ffff888025abc538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline]
#0: ffff888025abc538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2703
#1: ffffc90001357d20 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline]
#1: ffffc90001357d20 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2703
#2: ffffffff8eb35788 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4679
3 locks held by kworker/1:2/924:
#0: ffff888012c70d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline]
#0: ffff888012c70d38 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2703
#1: ffffc900046b7d20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline]
#1: ffffc900046b7d20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2703
#2: ffffffff8eb35788 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:277
1 lock held by dhcpcd/4730:
#0: ffffffff8eb35788 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8eb35788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1030 net/core/rtnetlink.c:6555
2 locks held by getty/4812:
#0: ffff88802623f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
3 locks held by kworker/1:5/5157:
#0: ffff888025abc538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline]
#0: ffff888025abc538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2703
#1: ffffc9000489fd20 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline]
#1: ffffc9000489fd20 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2703
#2: ffffffff8eb35788 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4679
3 locks held by kworker/1:1/12465:
#0: ffff888012c70d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline]
#0: ffff888012c70d38 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2703
#1: ffffc90015b07d20 (deferred_process_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline]
#1: ffffc90015b07d20 (deferred_process_work){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2703
#2: ffffffff8eb35788 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:75
2 locks held by kworker/1:0/28408:
#0: ffff888012c72938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline]
#0: ffff888012c72938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2703
#1: ffffc90015717d20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline]
#1: ffffc90015717d20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2703
5 locks held by kworker/u4:34/28990:
#0: ffff888012c73d38 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline]
#0: ffff888012c73d38 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2703
#1: ffffc900051dfd20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline]
#1: ffffc900051dfd20 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2703
#2: ffffffff8eb29210 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf5/0xb80 net/core/net_namespace.c:576
#3: ffffffff8eb35788 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xdb/0x640 net/core/dev.c:11551
#4: ffffffff8d932938 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#4: ffffffff8d932938 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a3/0x890 kernel/rcu/tree_exp.h:996
1 lock held by syz-executor.3/29241:
#0: ffffffff8eb35788 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:697 [inline]
#0: ffffffff8eb35788 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3499
1 lock held by syz-executor.3/29303:
#0: ffffffff8eb35788 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8eb35788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1030 net/core/rtnetlink.c:6555
1 lock held by syz-executor.3/29308:
#0: ffffffff8eb35788 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8eb35788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1030 net/core/rtnetlink.c:6555
1 lock held by syz-executor.3/29315:
#0: ffffffff8eb35788 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8eb35788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1030 net/core/rtnetlink.c:6555
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc2-syzkaller-00265-gd2da77f431ac #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x310 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+0xfaf/0xff0 kernel/hung_task.c:379
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 8 Comm: kworker/0:0 Not tainted 6.7.0-rc2-syzkaller-00265-gd2da77f431ac #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Workqueue: events ipvlan_process_multicast
RIP: 0010:match_held_lock+0x10/0xb0 kernel/locking/lockdep.c:5203
Code: 08 75 0d 48 89 d8 48 83 c4 10 5b 41 5e 41 5f c3 e8 a5 f9 ff ff 0f 1f 44 00 00 55 53 bd 01 00 00 00 48 39 77 10 74 67 48 89 fb <81> 7f 20 00 00 20 00 72 59 48 8b 46 08 48 85 c0 75 11 31 ed 48 89
RSP: 0018:ffffc90000007050 EFLAGS: 00000093
RAX: 0000000000000005 RBX: ffff888016a4e428 RCX: ffff888016a4d940
RDX: 0000000080000101 RSI: ffffffff8eb35788 RDI: ffff888016a4e428
RBP: 0000000000000001 R08: ffffffff89cad439 R09: ffffc900000073f0
R10: ffffc900000073e0 R11: fffff52000000e4a R12: 0000000000000246
R13: ffff888016a4d940 R14: 00000000ffffffff R15: ffffffff8eb35788
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f577ecb8db0 CR3: 000000000d730000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__lock_is_held kernel/locking/lockdep.c:5495 [inline]
lock_is_held_type+0xa8/0x190 kernel/locking/lockdep.c:5825
lock_is_held include/linux/lockdep.h:288 [inline]
lockdep_rtnl_is_held+0x1b/0x30 net/core/rtnetlink.c:177
__in6_dev_get include/net/addrconf.h:315 [inline]
ip6_ignore_linkdown include/net/addrconf.h:406 [inline]
find_match+0xc2/0xbe0 net/ipv6/route.c:742
__find_rr_leaf+0x275/0x8e0 net/ipv6/route.c:830
find_rr_leaf net/ipv6/route.c:851 [inline]
rt6_select net/ipv6/route.c:895 [inline]
fib6_table_lookup+0x413/0xbb0 net/ipv6/route.c:2183
ip6_pol_route+0x268/0x14c0 net/ipv6/route.c:2219
pol_lookup_func include/net/ip6_fib.h:614 [inline]
fib6_rule_lookup+0x269/0x5d0 net/ipv6/fib6_rules.c:116
ip6_route_input_lookup net/ipv6/route.c:2288 [inline]
ip6_route_input+0x859/0xd90 net/ipv6/route.c:2584
ip6_rcv_finish+0x141/0x230 net/ipv6/ip6_input.c:77
NF_HOOK+0x3a1/0x450 include/linux/netfilter.h:314
__netif_receive_skb_one_core net/core/dev.c:5529 [inline]
__netif_receive_skb+0x1ca/0x530 net/core/dev.c:5643
process_backlog+0x385/0x760 net/core/dev.c:5971
__napi_poll+0xc7/0x470 net/core/dev.c:6533
napi_poll net/core/dev.c:6602 [inline]
net_rx_action+0x78b/0x1010 net/core/dev.c:6735
__do_softirq+0x2b8/0x939 kernel/softirq.c:553
do_softirq+0x11b/0x1e0 kernel/softirq.c:454
__local_bh_enable_ip+0x1b7/0x1f0 kernel/softirq.c:381
local_bh_enable include/linux/bottom_half.h:33 [inline]
ipvlan_process_multicast+0xa0d/0xf20 drivers/net/ipvlan/ipvlan_core.c:279
process_one_work kernel/workqueue.c:2630 [inline]
process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2703
worker_thread+0xa5f/0x1000 kernel/workqueue.c:2784
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242