====================================== | [ 8.812410][ T184] softirqs last disabled at (28884): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 8.812412][ T184] Preemption disabled at: | [ 8.812412][ T184] vprintk_emit (kernel/printk/printk.c:2471) | [ 8.812427][ T184] Tainted: [W]=WARN [ 8.812428][ T184] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.812429][ T184] Call Trace: [ 8.812431][ T184] [ 8.812432][ T184] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.812437][ T184] ? vprintk_emit (kernel/printk/printk.c:2471) [ 8.812439][ T184] __might_resched.cold (kernel/sched/core.c:9234) [ 8.812444][ T184] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.812447][ T184] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.812453][ T184] __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)) [ 8.812455][ T184] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.812461][ T184] ? 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) [ 8.812463][ T184] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.812468][ T184] put_chars (drivers/char/virtio_console.c:1176) [ 8.812472][ T184] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.812475][ T184] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 8.812480][ T184] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.812484][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.812489][ T184] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.812492][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.812498][ T184] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.812501][ T184] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.812505][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.812507][ T184] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.812511][ T184] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.812514][ T184] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.812516][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.812521][ T184] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.812523][ T184] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.812524][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.812526][ T184] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.812530][ T184] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.812532][ T184] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.812535][ T184] vprintk_emit (kernel/printk/printk.c:2479) [ 8.812538][ T184] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.812540][ T184] ? __nlmsg_put (net/netlink/af_netlink.c:2157 (discriminator 1)) [ 8.812546][ T184] _printk (kernel/printk/printk.c:2504) [ 8.812549][ T184] ? snapshot_read.cold (user.c:?) [ 8.812553][ T184] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 8.812557][ T184] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 8.812560][ T184] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 8.812562][ T184] ? netdev_notice (net/core/dev.c:13194) [ 8.812566][ T184] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 8.812569][ T184] ? team_nl_send_options_get (./include/linux/skbuff.h:2915 (discriminator 2)) [ 8.812573][ T184] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 8.812577][ T184] team_port_add (drivers/net/team/team_core.c:1383) [ 8.812583][ T184] ? team_port_enable (./include/linux/if_team.h:86 (discriminator 3)) [ 8.812584][ T184] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 8.812591][ T184] do_set_master (net/core/rtnetlink.c:3071) [ 8.812595][ T184] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 8.812598][ T184] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 8.812602][ T184] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 8.812604][ T184] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 8.812607][ T184] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 8.812610][ T184] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 8.812612][ T184] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 8.812614][ T184] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.812617][ T184] ? kasan_save_stack (mm/kasan/common.c:58) [ 8.812619][ T184] ? kasan_save_stack (mm/kasan/common.c:57) [ 8.812620][ T184] ? kasan_save_track (mm/kasan/common.c:78) [ 8.812623][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.812625][ T184] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 8.812627][ T184] ? ___sys_sendmsg (net/socket.c:2757) [ 8.812630][ T184] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.812632][ T184] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 8.812635][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.812637][ T184] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.812639][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.812640][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.812642][ T184] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 8.812645][ T184] ? __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) [ 8.812646][ T184] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 8.812648][ T184] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 8.812652][ T184] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 8.812653][ T184] ? nla_get_range_signed (lib/nlattr.c:270) [ 8.812659][ T184] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 8.812664][ T184] rtnl_newlink (net/core/rtnetlink.c:4215) [ 8.812670][ T184] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 8.812672][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.812677][ T184] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.812679][ T184] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.812681][ T184] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 8.812683][ T184] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.812687][ T184] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 8.812689][ T184] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 8.812693][ T184] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 8.812695][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.812699][ T184] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.812701][ T184] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.812705][ T184] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 8.812707][ T184] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 8.812710][ T184] ? netlink_ack (./include/linux/skbuff.h:2718) [ 8.812716][ T184] ? 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)) [ 8.812717][ T184] ? 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)) [ 8.812721][ T184] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 8.812725][ T184] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 8.812728][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.812732][ T184] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 8.812736][ T184] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 8.812739][ T184] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 8.812745][ T184] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 8.812747][ T184] ? copy_msghdr_from_user (net/socket.c:2650) [ 8.812749][ T184] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 8.812750][ T184] ? move_addr_to_kernel (net/socket.c:258) [ 8.812757][ T184] ___sys_sendmsg (net/socket.c:2767) [ 8.812760][ T184] ? copy_msghdr_from_user (net/socket.c:2619) [ 8.812774][ T184] __sys_sendmsg (net/socket.c:2799) [ 8.812777][ T184] ? __sys_sendmsg_sock (net/socket.c:2780) [ 8.812783][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.812786][ T184] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.812788][ T184] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.812790][ T184] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.812793][ T184] RIP: 0033:0x7fab2ff7354e [ 8.812797][ T184] 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 [ 8.812798][ T184] RSP: 002b:00007ffdd12f5700 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 8.812801][ T184] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fab2ff7354e [ 8.812802][ T184] RDX: 0000000000000000 RSI: 00007ffdd12f57b0 RDI: 0000000000000005 [ 8.812803][ T184] RBP: 00007ffdd12f5710 R08: 0000000000000000 R09: 0000000000000000 [ 8.812804][ T184] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90edc6 Finger prints: __alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars