IPVS: ftp: loaded support on port[0] = 21
protocol 88fb is buggy, dev hsr_slave_1
INFO: task kworker/u4:0:7 blocked for more than 140 seconds.
Not tainted 5.0.0-rc2+ #28
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/u4:0 D18712 7 2 0x80000000
Workqueue: netns cleanup_net
Call Trace:
context_switch kernel/sched/core.c:2831 [inline]
__schedule+0x897/0x1e60 kernel/sched/core.c:3472
schedule+0xfe/0x350 kernel/sched/core.c:3516
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3574
__mutex_lock_common kernel/locking/mutex.c:1002 [inline]
__mutex_lock+0xa3b/0x1670 kernel/locking/mutex.c:1072
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77
ip_fib_net_exit+0x8f/0x4b0 net/ipv4/fib_frontend.c:1449
fib_net_exit+0x6f/0x90 net/ipv4/fib_frontend.c:1509
ops_exit_list.isra.0+0xb0/0x160 net/core/net_namespace.c:153
cleanup_net+0x51d/0xb10 net/core/net_namespace.c:551
process_one_work+0xd0c/0x1ce0 kernel/workqueue.c:2153
worker_thread+0x143/0x14a0 kernel/workqueue.c:2296
kthread+0x357/0x430 kernel/kthread.c:246
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
INFO: task kworker/1:2:2980 blocked for more than 140 seconds.
Not tainted 5.0.0-rc2+ #28
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/1:2 D22728 2980 2 0x80000000
Workqueue: ipv6_addrconf addrconf_dad_work
Call Trace:
context_switch kernel/sched/core.c:2831 [inline]
__schedule+0x897/0x1e60 kernel/sched/core.c:3472
schedule+0xfe/0x350 kernel/sched/core.c:3516
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3574
__mutex_lock_common kernel/locking/mutex.c:1002 [inline]
__mutex_lock+0xa3b/0x1670 kernel/locking/mutex.c:1072
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77
addrconf_dad_work+0xb4/0x1320 net/ipv6/addrconf.c:3994
process_one_work+0xd0c/0x1ce0 kernel/workqueue.c:2153
worker_thread+0x143/0x14a0 kernel/workqueue.c:2296
kthread+0x357/0x430 kernel/kthread.c:246
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
INFO: task syz-executor1:11190 blocked for more than 140 seconds.
Not tainted 5.0.0-rc2+ #28
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor1 D24696 11190 7987 0x80000004
Call Trace:
context_switch kernel/sched/core.c:2831 [inline]
__schedule+0x897/0x1e60 kernel/sched/core.c:3472
schedule+0xfe/0x350 kernel/sched/core.c:3516
exp_funnel_lock kernel/rcu/tree_exp.h:319 [inline]
_synchronize_rcu_expedited.constprop.0+0x7fa/0x8d0 kernel/rcu/tree_exp.h:622
synchronize_rcu_expedited+0x27/0xa0 kernel/rcu/tree_exp.h:762
synchronize_net+0x3b/0x60 net/core/dev.c:9162
dev_deactivate_many+0x536/0xdc0 net/sched/sch_generic.c:1222
__dev_close_many+0x198/0x380 net/core/dev.c:1466
dev_close_many+0x2f6/0x890 net/core/dev.c:1504
rollback_registered_many+0x544/0x1370 net/core/dev.c:8079
unregister_netdevice_many.part.0+0x8e/0x470 net/core/dev.c:9207
unregister_netdevice_many+0xba/0x120 net/core/dev.c:9206
sit_exit_batch_net+0x5f1/0x830 net/ipv6/sit.c:1888
ops_exit_list.isra.0+0x105/0x160 net/core/net_namespace.c:156
setup_net+0x4b2/0x8c0 net/core/net_namespace.c:331
copy_net_ns+0x2ae/0x4b0 net/core/net_namespace.c:437
create_new_namespaces+0x4ce/0x930 kernel/nsproxy.c:107
unshare_nsproxy_namespaces+0xc2/0x200 kernel/nsproxy.c:206
ksys_unshare+0x6d7/0xfb0 kernel/fork.c:2550
__do_sys_unshare kernel/fork.c:2618 [inline]
__se_sys_unshare kernel/fork.c:2616 [inline]
__x64_sys_unshare+0x31/0x40 kernel/fork.c:2616
do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458099
Code: 01 00 00 48 89 74 24 38 48 89 7c 24 30 4c 89 44 24 28 44 88 4c 24 27 48 89 54 24 50 48 89 44 24 40 48 c7 80 f8 00 00 00 00 00 <00> 00 4c 89 90 00 01 00 00 8b 0d 98 ec 21 01 4c 8d 90 f0 00 00 00
RSP: 002b:00007f01a1cb8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000458099
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000006c060000
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f01a1cb96d4
R13: 00000000004c6d60 R14: 00000000004dc280 R15: 00000000ffffffff
INFO: task syz-executor1:11192 blocked for more than 140 seconds.
Not tainted 5.0.0-rc2+ #28
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor1 D22376 11192 7987 0x80000006
Call Trace:
context_switch kernel/sched/core.c:2831 [inline]
__schedule+0x897/0x1e60 kernel/sched/core.c:3472
schedule+0xfe/0x350 kernel/sched/core.c:3516
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3574
__mutex_lock_common kernel/locking/mutex.c:1002 [inline]
__mutex_lock+0xa3b/0x1670 kernel/locking/mutex.c:1072
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77
cangw_pernet_exit+0x13/0x30 net/can/gw.c:1029
ops_exit_list.isra.0+0xb0/0x160 net/core/net_namespace.c:153
setup_net+0x4b2/0x8c0 net/core/net_namespace.c:331
copy_net_ns+0x2ae/0x4b0 net/core/net_namespace.c:437
create_new_namespaces+0x4ce/0x930 kernel/nsproxy.c:107
unshare_nsproxy_namespaces+0xc2/0x200 kernel/nsproxy.c:206
ksys_unshare+0x6d7/0xfb0 kernel/fork.c:2550
__do_sys_unshare kernel/fork.c:2618 [inline]
__se_sys_unshare kernel/fork.c:2616 [inline]
__x64_sys_unshare+0x31/0x40 kernel/fork.c:2616
do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458099
Code: 01 00 00 48 89 74 24 38 48 89 7c 24 30 4c 89 44 24 28 44 88 4c 24 27 48 89 54 24 50 48 89 44 24 40 48 c7 80 f8 00 00 00 00 00 <00> 00 4c 89 90 00 01 00 00 8b 0d 98 ec 21 01 4c 8d 90 f0 00 00 00
RSP: 002b:00007f01a1c97c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000458099
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000006c060000
RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f01a1c986d4
R13: 00000000004c6d60 R14: 00000000004dc280 R15: 00000000ffffffff
Showing all locks held in the system:
4 locks held by kworker/u4:0/7:
#0: 000000008402732a ((wq_completion)"%s""netns"){+.+.}, at: __write_once_size include/linux/compiler.h:218 [inline]
#0: 000000008402732a ((wq_completion)"%s""netns"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: 000000008402732a ((wq_completion)"%s""netns"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline]
#0: 000000008402732a ((wq_completion)"%s""netns"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline]
#0: 000000008402732a ((wq_completion)"%s""netns"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline]
#0: 000000008402732a ((wq_completion)"%s""netns"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline]
#0: 000000008402732a ((wq_completion)"%s""netns"){+.+.}, at: process_one_work+0xbc7/0x1ce0 kernel/workqueue.c:2124
#1: 000000005c2a4b22 (net_cleanup_work){+.+.}, at: process_one_work+0xc1d/0x1ce0 kernel/workqueue.c:2128
#2: 000000001afc78ef (pernet_ops_rwsem){++++}, at: cleanup_net+0x126/0xb10 net/core/net_namespace.c:518
#3: 000000003ed84a88 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77
1 lock held by khungtaskd/1039:
#0: 00000000ae88c3e8 (rcu_read_lock){....}, at: debug_show_all_locks+0xc6/0x41d kernel/locking/lockdep.c:4389
3 locks held by kworker/1:2/2980:
#0: 000000006fe022da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: __write_once_size include/linux/compiler.h:218 [inline]
#0: 000000006fe022da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: 000000006fe022da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline]
#0: 000000006fe022da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline]
#0: 000000006fe022da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline]
#0: 000000006fe022da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline]
#0: 000000006fe022da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: process_one_work+0xbc7/0x1ce0 kernel/workqueue.c:2124
#1: 000000006c348068 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}, at: process_one_work+0xc1d/0x1ce0 kernel/workqueue.c:2128
#2: 000000003ed84a88 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77
2 locks held by rsyslogd/7837:
#0: 00000000248083fe (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1b3/0x1f0 fs/file.c:795
#1: 000000008ed02c50 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1149 [inline]
#1: 000000008ed02c50 (&rq->lock){-.-.}, at: __schedule+0x21e/0x1e60 kernel/sched/core.c:3410
2 locks held by getty/7950:
#0: 000000008ea191aa (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 00000000e129c125 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154
2 locks held by getty/7951:
#0: 00000000e8f848ba (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 0000000006e01ae7 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154
2 locks held by getty/7952:
#0: 00000000626b3499 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 00000000a76527f6 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154
2 locks held by getty/7953:
#0: 0000000009bfabb3 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 000000003adafde1 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154
2 locks held by getty/7954:
#0: 000000005041227a (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 000000005d620618 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154
2 locks held by getty/7955:
#0: 0000000068da1c77 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 00000000c833f165 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154
2 locks held by getty/7956:
#0: 00000000e994dfc5 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 00000000290a98bf (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154
3 locks held by kworker/0:2/7988:
#0: 000000006fe022da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: __write_once_size include/linux/compiler.h:218 [inline]
#0: 000000006fe022da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: 000000006fe022da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline]
#0: 000000006fe022da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline]
#0: 000000006fe022da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline]
#0: 000000006fe022da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline]
#0: 000000006fe022da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: process_one_work+0xbc7/0x1ce0 kernel/workqueue.c:2124
#1: 000000002492c4a4 ((addr_chk_work).work){+.+.}, at: process_one_work+0xc1d/0x1ce0 kernel/workqueue.c:2128
#2: 000000003ed84a88 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77
2 locks held by syz-executor1/11190:
#0: 000000001afc78ef (pernet_ops_rwsem){++++}, at: copy_net_ns+0x289/0x4b0 net/core/net_namespace.c:433
#1: 000000003ed84a88 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77
2 locks held by syz-executor1/11192:
#0: 000000001afc78ef (pernet_ops_rwsem){++++}, at: copy_net_ns+0x289/0x4b0 net/core/net_namespace.c:433
#1: 000000003ed84a88 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 1039 Comm: khungtaskd Not tainted 5.0.0-rc2+ #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1db/0x2d0 lib/dump_stack.c:113
nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1be/0x236 lib/nmi_backtrace.c:62
arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
watchdog+0xbbb/0x1170 kernel/hung_task.c:287
kthread+0x357/0x430 kernel/kthread.c:246
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0x2/0x10 arch/x86/include/asm/irqflags.h:57