bisecting cause commit starting from a7f89616b7376495424f682b6086e0c391a89a1d building syzkaller on 32d593576a7ee67f588218d3a44a0b69fe31b0a0 testing commit a7f89616b7376495424f682b6086e0c391a89a1d with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in addrconf_dad_work run #1: crashed: INFO: rcu detected stall in br_handle_frame run #2: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #3: crashed: INFO: rcu detected stall in br_handle_frame run #4: crashed: INFO: rcu detected stall in addrconf_dad_work run #5: crashed: INFO: rcu detected stall in br_handle_frame run #6: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #7: crashed: INFO: rcu detected stall in addrconf_dad_work run #8: crashed: INFO: rcu detected stall in br_handle_frame run #9: crashed: INFO: rcu detected stall in br_handle_frame testing release v5.2 testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #1: crashed: INFO: rcu detected stall in addrconf_dad_work run #2: crashed: INFO: rcu detected stall in br_handle_frame run #3: crashed: INFO: rcu detected stall in addrconf_dad_work run #4: crashed: INFO: rcu detected stall in addrconf_dad_work run #5: crashed: INFO: rcu detected stall in addrconf_dad_work run #6: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #7: crashed: INFO: rcu detected stall in addrconf_dad_work run #8: crashed: INFO: rcu detected stall in sys_getsockopt run #9: crashed: INFO: rcu detected stall in mld_dad_timer_expire testing release v5.1 testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in br_handle_frame run #1: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #2: crashed: INFO: rcu detected stall in addrconf_dad_work run #3: crashed: INFO: rcu detected stall in mld_dad_timer_expire run #4: crashed: INFO: rcu detected stall in addrconf_dad_work run #5: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #6: crashed: INFO: rcu detected stall in br_handle_frame run #7: crashed: INFO: rcu detected stall in br_handle_frame run #8: crashed: INFO: rcu detected stall in addrconf_dad_work run #9: crashed: INFO: rcu detected stall in mld_ifc_timer_expire testing release v5.0 testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #1: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #2: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #3: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #4: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #5: crashed: INFO: rcu detected stall in addrconf_dad_work run #6: crashed: INFO: rcu detected stall in br_handle_frame run #7: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #8: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #9: crashed: INFO: rcu detected stall in mld_dad_timer_expire testing release v4.20 testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in addrconf_dad_work run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in br_handle_frame run #3: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #4: crashed: INFO: rcu detected stall in br_handle_frame run #5: crashed: INFO: rcu detected stall in addrconf_dad_work run #6: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #7: crashed: INFO: rcu detected stall in br_handle_frame run #8: crashed: INFO: rcu detected stall in br_handle_frame run #9: crashed: INFO: rcu detected stall in mld_ifc_timer_expire testing release v4.19 testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in addrconf_dad_work run #1: crashed: INFO: rcu detected stall in br_handle_frame run #2: crashed: INFO: rcu detected stall in addrconf_dad_work run #3: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #4: crashed: INFO: rcu detected stall in br_handle_frame run #5: crashed: INFO: rcu detected stall in br_handle_frame run #6: crashed: INFO: rcu detected stall in br_handle_frame run #7: crashed: INFO: rcu detected stall in addrconf_dad_work run #8: crashed: INFO: rcu detected stall in br_handle_frame run #9: crashed: INFO: rcu detected stall in addrconf_dad_work testing release v4.18 testing commit 94710cac0ef4ee177a63b5227664b38c95bbf703 with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in br_handle_frame run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in addrconf_dad_work run #9: crashed: INFO: rcu detected stall in mld_dad_timer_expire testing release v4.17 testing commit 29dcea88779c856c7dc92040a0c01233263101d4 with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in addrconf_dad_work run #2: crashed: INFO: rcu detected stall in addrconf_dad_work run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in br_handle_frame run #8: crashed: INFO: rcu detected stall in br_handle_frame run #9: crashed: INFO: rcu detected stall in br_handle_frame testing release v4.16 testing commit 0adb32858b0bddf4ada5f364a84ed60b196dbcda with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in br_handle_frame run #2: crashed: INFO: rcu detected stall in br_handle_frame run #3: crashed: INFO: rcu detected stall in addrconf_dad_work run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in br_handle_frame run #7: crashed: INFO: rcu detected stall in mld_dad_timer_expire run #8: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #9: crashed: INFO: rcu detected stall in mld_dad_timer_expire testing release v4.15 testing commit d8a5b80568a9cb66810e75b182018e9edb68e8ff with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in br_handle_frame run #2: crashed: INFO: rcu detected stall in br_handle_frame run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in addrconf_dad_work run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in addrconf_dad_work run #9: crashed: INFO: rcu detected stall in mld_dad_timer_expire testing release v4.14 testing commit bebc6082da0a9f5d47a1ea2edc099bf671058bd4 with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in addrconf_dad_work run #1: crashed: INFO: rcu detected stall in br_handle_frame run #2: crashed: INFO: rcu detected stall in mld_dad_timer_expire run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in addrconf_dad_work run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in mld_dad_timer_expire run #9: crashed: INFO: rcu detected stall in corrupted testing release v4.13 testing commit 569dbb88e80deb68974ef6fdd6a13edb9d686261 with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in br_handle_frame run #1: crashed: INFO: rcu detected stall in addrconf_dad_work run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in br_handle_frame run #4: crashed: INFO: rcu detected stall in br_handle_frame run #5: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #6: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #7: crashed: INFO: rcu detected stall in addrconf_dad_work run #8: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #9: crashed: INFO: rcu detected stall in mld_ifc_timer_expire testing release v4.12 testing commit 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in addrconf_dad_work run #4: crashed: INFO: rcu detected stall in br_handle_frame run #5: crashed: INFO: rcu detected stall in mld_dad_timer_expire run #6: crashed: INFO: rcu detected stall in addrconf_dad_work run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in br_handle_frame run #9: crashed: INFO: rcu detected stall in mld_dad_timer_expire testing release v4.11 testing commit a351e9b9fc24e982ec2f0e76379a49826036da12 with gcc (GCC) 7.3.0 run #0: crashed: INFO: rcu detected stall in addrconf_dad_work run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #8: crashed: INFO: rcu detected stall in addrconf_dad_work run #9: crashed: no output from test machine testing release v4.10 testing commit c470abd4fde40ea6a0846a2beab642a578c0b8cd with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in addrconf_dad_work run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in addrconf_dad_work run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #6: crashed: INFO: rcu detected stall in addrconf_dad_work run #7: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in addrconf_dad_work testing release v4.9 testing commit 69973b830859bc6529a7a0468ba0d80ee5117826 with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in br_handle_frame run #1: crashed: INFO: rcu detected stall in addrconf_dad_work run #2: crashed: INFO: rcu detected stall in addrconf_dad_work run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #9: crashed: INFO: rcu detected stall in corrupted testing release v4.8 testing commit c8d2bc9bc39ebea8437fd974fdbc21847bb897a3 with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in br_handle_frame run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in br_handle_frame run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in br_handle_frame run #9: crashed: INFO: rcu detected stall in br_handle_frame testing release v4.7 testing commit 523d939ef98fd712632d93a5a2b588e477a7565e with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in addrconf_dad_work run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in addrconf_dad_work testing release v4.6 testing commit 2dcd0af568b0cf583645c8a317dd12e344b1c72a with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in addrconf_dad_work run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #4: crashed: INFO: rcu detected stall in addrconf_dad_work run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in br_handle_frame run #9: crashed: INFO: rcu detected stall in mld_ifc_timer_expire testing release v4.5 testing commit b562e44f507e863c6792946e4e1b1449fbbac85d with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in br_handle_frame run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in addrconf_dad_work run #5: crashed: INFO: rcu detected stall in addrconf_dad_work run #6: crashed: INFO: rcu detected stall in br_handle_frame run #7: crashed: INFO: rcu detected stall in addrconf_dad_work run #8: crashed: INFO: rcu detected stall in br_handle_frame run #9: crashed: INFO: rcu detected stall in mld_ifc_timer_expire testing release v4.4 testing commit afd2ff9b7e1b367172f18ba7f693dfb62bdcb2dc with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in br_handle_frame run #2: crashed: INFO: rcu detected stall in br_handle_frame run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in addrconf_dad_work run #5: crashed: INFO: rcu detected stall in br_handle_frame run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in addrconf_dad_work run #8: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #9: crashed: INFO: rcu detected stall in mld_ifc_timer_expire testing release v4.3 testing commit 6a13feb9c82803e2b815eca72fa7a9f5561d7861 with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in br_handle_frame run #1: crashed: INFO: rcu detected stall in br_handle_frame run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: no output from test machine run #8: crashed: no output from test machine run #9: crashed: no output from test machine testing release v4.2 testing commit 64291f7db5bd8150a74ad2036f1037e6a0428df2 with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in br_handle_frame run #1: crashed: INFO: rcu detected stall in br_handle_frame run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #6: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #7: crashed: INFO: rcu detected stall in addrconf_dad_work run #8: crashed: INFO: rcu detected stall in br_handle_frame run #9: crashed: INFO: rcu detected stall in addrconf_dad_work testing release v4.1 testing commit b953c0d234bc72e8489d3bf51a276c5c4ec85345 with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in br_handle_frame run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in br_handle_frame run #3: crashed: INFO: rcu detected stall in mld_ifc_timer_expire run #4: crashed: INFO: rcu detected stall in br_handle_frame run #5: crashed: INFO: rcu detected stall in br_handle_frame run #6: crashed: INFO: rcu detected stall in addrconf_dad_work run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in arch_cpu_idle revisions tested: 24, total time: 4h18m27.712854985s (build: 1h39m36.625585399s, test: 2h32m15.539925127s) the crash already happened on the oldest tested release crash: INFO: rcu detected stall in arch_cpu_idle IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready device bridge_slave_1 entered promiscuous mode bridge0: port 1(bridge_slave_0) entered forwarding state bridge0: port 2(bridge_slave_1) entered forwarding state INFO: rcu_sched self-detected stall on CPU[ 160.763100] INFO: rcu_preempt detected stalls on CPUs/tasks: (detected by 1, t=10502 jiffies, g=360, c=359, q=495) All QSes seen, last rcu_preempt kthread activity 10502 (4294953158-4294942656), jiffies_till_next_fqs=1, root ->qsmask 0x0 swapper/1 R running task 14920 0 1 0x00000000 ffff88012b7842d0 ffff88012c103d98 ffffffff811a3242 0000000000002906 ffffffff8325cdc0 0000000000000168 0000000000000000 ffff88012c103e28 ffffffff811e9779 0000000000000000 ffff88012c110820 ffff88012b7842d0 Call Trace: [] sched_show_task+0xf2/0x1a0 kernel/sched/core.c:4545 [] print_other_cpu_stall kernel/rcu/tree.c:1226 [inline] [] check_cpu_stall kernel/rcu/tree.c:1332 [inline] [] __rcu_pending kernel/rcu/tree.c:3422 [inline] [] rcu_pending kernel/rcu/tree.c:3486 [inline] [] rcu_check_callbacks+0xd69/0xd70 kernel/rcu/tree.c:2703 [] update_process_times+0x34/0x60 kernel/time/timer.c:1396 [] tick_sched_handle.isra.22+0x20/0x60 kernel/time/tick-sched.c:151 [] tick_sched_timer+0x3c/0x80 kernel/time/tick-sched.c:1124 [] __run_hrtimer+0xe6/0x760 kernel/time/hrtimer.c:1220 [] hrtimer_interrupt+0x103/0x230 kernel/time/hrtimer.c:1299 [] local_apic_timer_interrupt+0x35/0x60 arch/x86/kernel/apic/apic.c:890 [] smp_apic_timer_interrupt+0x3c/0x50 arch/x86/kernel/apic/apic.c:914 [] apic_timer_interrupt+0x73/0x80 arch/x86/kernel/entry_64.S:923 [] ? __atomic_notifier_call_chain+0x120/0x120 include/linux/rcupdate.h:966 [] arch_safe_halt arch/x86/include/asm/paravirt.h:111 [inline] [] default_idle+0x29/0x270 arch/x86/kernel/process.c:341 [] arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:332 [] cpuidle_idle_call kernel/sched/idle.c:195 [inline] [] cpu_idle_loop kernel/sched/idle.c:249 [inline] [] cpu_startup_entry+0x2e9/0x660 kernel/sched/idle.c:297 [] start_secondary+0x147/0x190 arch/x86/kernel/smpboot.c:269 rcu_preempt kthread starved for 10502 jiffies! INFO: rcu_sched detected stalls on CPUs/tasks: 0: (1 GPs behind) idle=78b/140000000000002/0 softirq=6086/6100 fqs=10501 (detected by 1, t=10503 jiffies, g=-273, c=-274, q=1) Task dump for CPU 0: syz-executor.1 R running task 12168 5483 1 0x0000000c 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ffff8800b3f13c28 0000000000000000 ffff8800b558e400 ffff8800b0a3c800 0000000000000000 Call Trace: 0: (1 GPs behind) idle=78b/140000000000002/0 softirq=6086/6100 fqs=10534 (t=10536 jiffies g=-273 c=-274 q=1) Task dump for CPU 0: syz-executor.1 R running task 12168 5483 1 0x0000000c ffff8800b8bd0150 ffff88012c003790 ffffffff811a3242 0000000000000001 0000000000000000 ffffffff8325de80 0000000000000086 ffff88012c0037b0 ffffffff811a7728 ffffffff8325de80 0000000000000001 ffff88012c0037e0 Call Trace: [] sched_show_task+0xf2/0x1a0 kernel/sched/core.c:4545 [] dump_cpu_task+0x38/0x40 kernel/sched/core.c:8380 [] rcu_dump_cpu_stacks+0x90/0xe0 kernel/rcu/tree.c:1156 [] print_cpu_stall kernel/rcu/tree.c:1262 [inline] [] check_cpu_stall kernel/rcu/tree.c:1326 [inline] [] __rcu_pending kernel/rcu/tree.c:3422 [inline] [] rcu_pending kernel/rcu/tree.c:3486 [inline] [] rcu_check_callbacks+0x8bd/0xd70 kernel/rcu/tree.c:2703 [] update_process_times+0x34/0x60 kernel/time/timer.c:1396 [] tick_sched_handle.isra.22+0x20/0x60 kernel/time/tick-sched.c:151 [] tick_sched_timer+0x3c/0x80 kernel/time/tick-sched.c:1124 [] __run_hrtimer+0xe6/0x760 kernel/time/hrtimer.c:1220 [] hrtimer_interrupt+0x103/0x230 kernel/time/hrtimer.c:1299 [] local_apic_timer_interrupt+0x35/0x60 arch/x86/kernel/apic/apic.c:890 [] smp_apic_timer_interrupt+0x3c/0x50 arch/x86/kernel/apic/apic.c:914 [] apic_timer_interrupt+0x73/0x80 arch/x86/kernel/entry_64.S:923 [] list_add_tail include/linux/list.h:77 [inline] [] list_move_tail include/linux/list.h:169 [inline] [] hhf_dequeue+0x16e/0x190 net/sched/sch_hhf.c:466 [] dequeue_skb net/sched/sch_generic.c:103 [inline] [] qdisc_restart net/sched/sch_generic.c:220 [inline] [] __qdisc_run+0x67/0x1c0 net/sched/sch_generic.c:236 [] __dev_xmit_skb net/core/dev.c:2857 [inline] [] __dev_queue_xmit+0x406/0x950 net/core/dev.c:2965 [] dev_queue_xmit_sk+0xe/0x10 net/core/dev.c:3031 [] dev_queue_xmit include/linux/netdevice.h:2178 [inline] [] neigh_hh_output include/net/neighbour.h:467 [inline] [] dst_neigh_output include/net/dst.h:419 [inline] [] ip6_finish_output2+0x542/0x7d0 net/ipv6/ip6_output.c:113 [] ip6_finish_output+0xa4/0x1e0 net/ipv6/ip6_output.c:132 [] NF_HOOK_COND include/linux/netfilter.h:222 [inline] [] ip6_output+0x49/0x190 net/ipv6/ip6_output.c:146 [] dst_output_sk include/net/dst.h:458 [inline] [] NF_HOOK_THRESH.constprop.39+0x2f/0xd0 include/linux/netfilter.h:209 [] NF_HOOK include/linux/netfilter.h:231 [inline] [] mld_sendpack+0x1a3/0x360 net/ipv6/mcast.c:1647 [] mld_send_cr net/ipv6/mcast.c:1929 [inline] [] mld_ifc_timer_expire+0x19d/0x2e0 net/ipv6/mcast.c:2427 [] call_timer_fn+0xa5/0x520 kernel/time/timer.c:1153 [] __run_timers kernel/time/timer.c:1225 [inline] [] run_timer_softirq+0x2ac/0x4a0 kernel/time/timer.c:1415 [] __do_softirq+0x15c/0x6c0 kernel/softirq.c:273 [] invoke_softirq kernel/softirq.c:350 [inline] [] irq_exit+0xc5/0xe0 kernel/softirq.c:391 [] exiting_irq arch/x86/include/asm/apic.h:649 [inline] [] smp_apic_timer_interrupt+0x41/0x50 arch/x86/kernel/apic/apic.c:915 [] apic_timer_interrupt+0x73/0x80 arch/x86/kernel/entry_64.S:923 [] ? lock_acquire+0x33/0x310 kernel/locking/lockdep.c:3612 [] __mutex_lock_common kernel/locking/mutex.c:518 [inline] [] mutex_lock_nested+0x5e/0x610 kernel/locking/mutex.c:617 [] kernfs_add_one+0x22/0x170 fs/kernfs/dir.c:583 [] __kernfs_create_file+0xa0/0xd0 fs/kernfs/file.c:948 [] sysfs_add_file_mode_ns+0x91/0x1e0 fs/sysfs/file.c:297 [] create_files fs/sysfs/group.c:64 [inline] [] internal_create_group+0xe6/0x2c0 fs/sysfs/group.c:121 [] sysfs_create_group fs/sysfs/group.c:143 [inline] [] sysfs_create_groups+0x49/0xa0 fs/sysfs/group.c:170 [] device_add_groups drivers/base/core.c:460 [inline] [] device_add_attrs drivers/base/core.c:487 [inline] [] device_add+0x64b/0x680 drivers/base/core.c:1040 [] netdev_register_kobject+0x8d/0x170 net/core/net-sysfs.c:1523 [] register_netdevice+0x382/0x4c0 net/core/dev.c:6407 [] veth_newlink+0x115/0x2e0 drivers/net/veth.c:406 [] rtnl_newlink+0x72f/0x8e0 net/core/rtnetlink.c:2229 [] rtnetlink_rcv_msg+0x83/0x230 net/core/rtnetlink.c:3250 [] netlink_rcv_skb+0xa9/0xd0 net/netlink/af_netlink.c:2843 [] rtnetlink_rcv+0x29/0x40 net/core/rtnetlink.c:3256 [] netlink_unicast_kernel net/netlink/af_netlink.c:1763 [inline] [] netlink_unicast+0x1ca/0x2e0 net/netlink/af_netlink.c:1789 [] netlink_sendmsg+0x310/0x3d0 net/netlink/af_netlink.c:2353 [] sock_sendmsg_nosec net/socket.c:613 [inline] [] sock_sendmsg+0x35/0x40 net/socket.c:623 [] SYSC_sendto+0xf2/0x170 net/socket.c:1660 [] SyS_sendto+0x9/0x10 net/socket.c:1628 [] system_call_fastpath+0x16/0x7a