====================================== | [ 9.345814][ T186] softirqs last disabled at (28588): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 9.345816][ T186] Preemption disabled at: | [ 9.345817][ T186] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.345826][ T186] Tainted: [W]=WARN [ 9.345827][ T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.345828][ T186] Call Trace: [ 9.345830][ T186] [ 9.345832][ T186] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.345837][ T186] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.345838][ T186] __might_resched.cold (kernel/sched/core.c:9234) [ 9.345843][ T186] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.345846][ T186] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.345852][ T186] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 9.345854][ T186] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.345860][ T186] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 9.345862][ T186] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.345866][ T186] put_chars (drivers/char/virtio_console.c:1176) [ 9.345869][ T186] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.345873][ T186] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 9.345878][ T186] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.345881][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.345888][ T186] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.345892][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.345898][ T186] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.345901][ T186] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.345905][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.345907][ T186] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.345911][ T186] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.345915][ T186] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.345916][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.345921][ T186] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.345924][ T186] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.345925][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.345927][ T186] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.345931][ T186] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.345933][ T186] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.345935][ T186] vprintk_emit (kernel/printk/printk.c:2479) [ 9.345938][ T186] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.345941][ T186] ? __nlmsg_put (net/netlink/af_netlink.c:2157 (discriminator 1)) [ 9.345946][ T186] _printk (kernel/printk/printk.c:2504) [ 9.345949][ T186] ? snapshot_read.cold (user.c:?) [ 9.345953][ T186] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 9.345956][ T186] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 9.345960][ T186] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 9.345962][ T186] ? netdev_notice (net/core/dev.c:13194) [ 9.345966][ T186] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 9.345970][ T186] ? team_nl_send_options_get (./include/linux/skbuff.h:2915 (discriminator 2)) [ 9.345973][ T186] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 9.345978][ T186] team_port_add (drivers/net/team/team_core.c:1383) [ 9.345983][ T186] ? team_port_enable (./include/linux/if_team.h:86 (discriminator 3)) [ 9.345985][ T186] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 9.345991][ T186] do_set_master (net/core/rtnetlink.c:3071) [ 9.345995][ T186] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 9.345999][ T186] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 9.346003][ T186] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 9.346004][ T186] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 9.346007][ T186] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 9.346010][ T186] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.346013][ T186] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 9.346015][ T186] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.346017][ T186] ? kasan_save_stack (mm/kasan/common.c:58) [ 9.346019][ T186] ? kasan_save_stack (mm/kasan/common.c:57) [ 9.346020][ T186] ? kasan_save_track (mm/kasan/common.c:78) [ 9.346023][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.346025][ T186] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 9.346027][ T186] ? ___sys_sendmsg (net/socket.c:2757) [ 9.346030][ T186] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.346032][ T186] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 9.346035][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.346037][ T186] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.346039][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.346040][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.346042][ T186] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 9.346045][ T186] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 9.346046][ T186] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 9.346048][ T186] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 9.346052][ T186] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 9.346053][ T186] ? nla_get_range_signed (lib/nlattr.c:270) [ 9.346059][ T186] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 9.346064][ T186] rtnl_newlink (net/core/rtnetlink.c:4215) [ 9.346070][ T186] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 9.346073][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.346077][ T186] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.346079][ T186] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.346081][ T186] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 9.346084][ T186] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.346088][ T186] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 9.346090][ T186] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 9.346093][ T186] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.346095][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.346100][ T186] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.346102][ T186] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.346105][ T186] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 9.346107][ T186] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.346111][ T186] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.346117][ T186] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 9.346118][ T186] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 9.346122][ T186] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.346126][ T186] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.346129][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.346133][ T186] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 9.346137][ T186] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 9.346141][ T186] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 9.346146][ T186] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 9.346148][ T186] ? copy_msghdr_from_user (net/socket.c:2650) [ 9.346150][ T186] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 9.346152][ T186] ? move_addr_to_kernel (net/socket.c:258) [ 9.346159][ T186] ___sys_sendmsg (net/socket.c:2767) [ 9.346161][ T186] ? copy_msghdr_from_user (net/socket.c:2619) [ 9.346176][ T186] __sys_sendmsg (net/socket.c:2799) [ 9.346179][ T186] ? __sys_sendmsg_sock (net/socket.c:2780) [ 9.346185][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.346188][ T186] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.346189][ T186] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.346192][ T186] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.346194][ T186] RIP: 0033:0x7f687e37c54e [ 9.346198][ T186] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 9.346200][ T186] RSP: 002b:00007ffdbbed3130 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 9.346203][ T186] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f687e37c54e [ 9.346204][ T186] RDX: 0000000000000000 RSI: 00007ffdbbed31e0 RDI: 0000000000000005 [ 9.346205][ T186] RBP: 00007ffdbbed3140 R08: 0000000000000000 R09: 0000000000000000 [ 9.346206][ T186] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916b13 Finger prints: __alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars