====================================== | [ 21.468467][ T384] RCU nest depth: 0, expected: 0 | [ 21.468651][ T384] 2 locks held by tc/384: | [ 21.468794][ T384] #0: ffffffffb9de7e88 (rtnl_mutex){+.+.}-{4:4}, at: tc_new_tfilter (net/sched/cls_api.c:2261) | [ 21.469117][ T384] #1: ffff88800b302f90 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383) [ 21.469748][ T384] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 21.469956][ T384] Call Trace: [ 21.470094][ T384] [ 21.470188][ T384] dump_stack_lvl (lib/dump_stack.c:123) [ 21.470374][ T384] __might_resched (kernel/sched/core.c:8759) [ 21.470548][ T384] ? tc_new_tfilter (net/sched/cls_api.c:2383) [ 21.470724][ T384] cpus_read_lock (./include/linux/kernel.h:73 ./include/linux/percpu-rwsem.h:49 kernel/cpu.c:490) [ 21.470897][ T384] static_key_slow_inc (kernel/jump_label.c:191) [ 21.471090][ T384] tc_new_tfilter (net/sched/cls_api.c:2385) [ 21.471283][ T384] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 21.471420][ T384] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 21.471621][ T384] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 21.471808][ T384] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912) [ 21.471981][ T384] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 21.472156][ T384] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914) [ 21.472581][ T384] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 21.472755][ T384] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 21.472929][ T384] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 21.473061][ T384] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 21.473238][ T384] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 21.473404][ T384] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 21.473577][ T384] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 21.473764][ T384] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 21.473947][ T384] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 21.474159][ T384] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 21.474364][ T384] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 21.474550][ T384] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 21.474751][ T384] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 21.474958][ T384] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 21.475159][ T384] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568) [ 21.475347][ T384] ? __pfx_____sys_sendmsg (net/socket.c:2514) [ 21.475528][ T384] ? __pfx_copy_msghdr_from_user (net/socket.c:2494) [ 21.475750][ T384] ___sys_sendmsg (net/socket.c:2624) [ 21.475912][ T384] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) [ 21.476127][ T384] ? __pfx____sys_sendmsg (net/socket.c:2611) [ 21.476324][ T384] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) [ 21.476536][ T384] ? __pfx_free_object_rcu (mm/kmemleak.c:514) [ 21.476706][ T384] ? trace_rcu_segcb_stats (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/cpumask.h:570 ./include/linux/cpumask.h:1117 ./include/trace/events/rcu.h:537) [ 21.476885][ T384] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 21.477107][ T384] ? kmem_cache_free (mm/slub.c:4613 mm/slub.c:4715) [ 21.477271][ T384] ? do_sys_openat2 (fs/open.c:1405) [ 21.477441][ T384] ? do_sys_openat2 (fs/open.c:1411) [ 21.477614][ T384] ? do_sys_openat2 (fs/open.c:1411) [ 21.477793][ T384] __sys_sendmsg (net/socket.c:2654) [ 21.477962][ T384] ? __pfx___sys_sendmsg (net/socket.c:2639) [ 21.478146][ T384] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 21.478317][ T384] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 21.478528][ T384] RIP: 0033:0x7f7f7611a9a7 [ 21.478716][ T384] Code: Unable to access opcode bytes at 0x7f7f7611a97d. Code starting with the faulting instruction =========================================== [ 21.478928][ T384] RSP: 002b:00007ffe2c9bb758 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 21.479182][ T384] RAX: ffffffffffffffda RBX: 000000000047dbc0 RCX: 00007f7f7611a9a7 [ 21.479431][ T384] RDX: 0000000000000000 RSI: 00007ffe2c9bb7c0 RDI: 0000000000000005 [ 21.479698][ T384] RBP: 0000000000000081 R08: 0000000000000000 R09: 0000000000000000 [ 21.479956][ T384] R10: 00007f7f75fd3708 R11: 0000000000000246 R12: 0000000000000000 [ 21.480209][ T384] R13: 00000000678585c9 R14: 0000000000483b60 R15: 00007ffe2c9c197e | [ 21.482838][ T384] #1: ffff88800b302f90 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383) | [ 21.483101][ T384] #2: ffffffffb93ddcd0 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_slow_inc (kernel/jump_label.c:191) | [ 21.483366][ T384] stack backtrace: | [ 21.483721][ T384] Tainted: [W]=WARN [ 21.483843][ T384] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 21.484018][ T384] Call Trace: [ 21.484137][ T384] [ 21.484215][ T384] dump_stack_lvl (lib/dump_stack.c:123) [ 21.484363][ T384] __lock_acquire (kernel/locking/lockdep.c:4828 kernel/locking/lockdep.c:4898 kernel/locking/lockdep.c:5176) [ 21.484509][ T384] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851) [ 21.484648][ T384] ? static_key_slow_inc_cpuslocked (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:1195 kernel/jump_label.c:167 kernel/jump_label.c:151) [ 21.484828][ T384] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 21.484979][ T384] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37)) [ 21.485117][ T384] ? lock_acquire (kernel/locking/lockdep.c:5822) [ 21.485254][ T384] ? static_key_slow_inc_cpuslocked (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:1195 kernel/jump_label.c:167 kernel/jump_label.c:151) [ 21.485447][ T384] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:735) [ 21.485612][ T384] ? static_key_slow_inc_cpuslocked (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:1195 kernel/jump_label.c:167 kernel/jump_label.c:151) [ 21.485808][ T384] ? static_key_slow_inc_cpuslocked (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:1195 kernel/jump_label.c:167 kernel/jump_label.c:151) [ 21.486006][ T384] ? __pfx___mutex_lock (kernel/locking/mutex.c:734) [ 21.486143][ T384] ? static_key_slow_inc (kernel/jump_label.c:191) [ 21.486278][ T384] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 21.486413][ T384] ? static_key_fast_inc_not_disabled (./arch/x86/include/asm/atomic.h:23 (discriminator 3) ./include/linux/atomic/atomic-arch-fallback.h:457 (discriminator 3) ./include/linux/atomic/atomic-instrumented.h:33 (discriminator 3) kernel/jump_label.c:141 (discriminator 3)) [ 21.486582][ T384] ? __pfx_static_key_fast_inc_not_disabled (kernel/jump_label.c:128) [ 21.486754][ T384] ? static_key_slow_inc_cpuslocked (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:1195 kernel/jump_label.c:167 kernel/jump_label.c:151) [ 21.486920][ T384] static_key_slow_inc_cpuslocked (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:1195 kernel/jump_label.c:167 kernel/jump_label.c:151) [ 21.487095][ T384] static_key_slow_inc (kernel/jump_label.c:191) [ 21.487231][ T384] tc_new_tfilter (net/sched/cls_api.c:2385) [ 21.487398][ T384] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 21.487503][ T384] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 21.487644][ T384] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 21.487782][ T384] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912) [ 21.487918][ T384] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 21.488062][ T384] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914) [ 21.488204][ T384] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 21.488349][ T384] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 21.488490][ T384] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 21.488594][ T384] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 21.488738][ T384] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 21.488877][ T384] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 21.489035][ T384] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 21.489187][ T384] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 21.489338][ T384] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 21.489487][ T384] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 21.489636][ T384] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 21.489783][ T384] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 21.489938][ T384] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 21.490100][ T384] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 21.490254][ T384] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568) [ 21.490410][ T384] ? __pfx_____sys_sendmsg (net/socket.c:2514) [ 21.490560][ T384] ? __pfx_copy_msghdr_from_user (net/socket.c:2494) [ 21.490750][ T384] ___sys_sendmsg (net/socket.c:2624) [ 21.490900][ T384] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) [ 21.491101][ T384] ? __pfx____sys_sendmsg (net/socket.c:2611) [ 21.491263][ T384] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) [ 21.491451][ T384] ? __pfx_free_object_rcu (mm/kmemleak.c:514) [ 21.491607][ T384] ? trace_rcu_segcb_stats (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/cpumask.h:570 ./include/linux/cpumask.h:1117 ./include/trace/events/rcu.h:537) [ 21.491763][ T384] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 21.491956][ T384] ? kmem_cache_free (mm/slub.c:4613 mm/slub.c:4715) [ 21.492108][ T384] ? do_sys_openat2 (fs/open.c:1405) [ 21.492266][ T384] ? do_sys_openat2 (fs/open.c:1411) [ 21.492424][ T384] ? do_sys_openat2 (fs/open.c:1411) [ 21.492577][ T384] __sys_sendmsg (net/socket.c:2654) [ 21.492728][ T384] ? __pfx___sys_sendmsg (net/socket.c:2639) [ 21.492882][ T384] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 21.493033][ T384] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 21.493220][ T384] RIP: 0033:0x7f7f7611a9a7 [ 21.493387][ T384] Code: Unable to access opcode bytes at 0x7f7f7611a97d. Code starting with the faulting instruction =========================================== [ 21.493586][ T384] RSP: 002b:00007ffe2c9bb758 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 21.493805][ T384] RAX: ffffffffffffffda RBX: 000000000047dbc0 RCX: 00007f7f7611a9a7 [ 21.494141][ T384] RDX: 0000000000000000 RSI: 00007ffe2c9bb7c0 RDI: 0000000000000005 [ 21.494347][ T384] RBP: 0000000000000081 R08: 0000000000000000 R09: 0000000000000000 [ 21.494555][ T384] R10: 00007f7f75fd3708 R11: 0000000000000246 R12: 0000000000000000 Finger prints: __lock_acquire:__mutex_lock:static_key_slow_inc_cpuslocked:static_key_slow_inc:tc_new_tfilter __might_resched:cpus_read_lock:static_key_slow_inc:tc_new_tfilter:rtnetlink_rcv_msg