[ 8.474860][ T187] modprobe (187) used greatest stack depth: 24080 bytes left [ 8.491934][ T186] ip (186) used greatest stack depth: 23784 bytes left [ 10.327606][ T266] 8021q: 802.1Q VLAN Support v1.8 [ 10.440709][ T272] gre: GRE over IPv4 demultiplexer driver [ 10.472041][ T272] ip6_gre: GRE over IPv6 tunneling driver [ 16.928777][ T359] GACT probability NOT on [ 17.038878][ C0] [ 17.038959][ C0] ======================================================== [ 17.039113][ C0] WARNING: possible irq lock inversion dependency detected [ 17.039261][ C0] 7.1.0-rc5-virtme #1 Not tainted [ 17.039360][ C0] -------------------------------------------------------- [ 17.039502][ C0] mausezahn/365 just changed the state of lock: [ 17.039620][ C0] ff1100000cd88d78 (&ndev->lock){++.-}-{3:3}, at: ipv6_get_lladdr+0xa8/0x3f0 [ 17.039795][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 17.039939][ C0] (acaddr_hash_lock){+.+.}-{3:3} [ 17.039941][ C0] [ 17.039941][ C0] [ 17.039941][ C0] and interrupts could create inverse lock ordering between them. [ 17.039941][ C0] [ 17.040302][ C0] [ 17.040302][ C0] other info that might help us debug this: [ 17.040445][ C0] Possible interrupt unsafe locking scenario: [ 17.040445][ C0] [ 17.040588][ C0] CPU0 CPU1 [ 17.040685][ C0] ---- ---- [ 17.040783][ C0] lock(acaddr_hash_lock); [ 17.040882][ C0] local_irq_disable(); [ 17.041001][ C0] lock(&ndev->lock); [ 17.041132][ C0] lock(acaddr_hash_lock); [ 17.041257][ C0] [ 17.041331][ C0] lock(&ndev->lock); [ 17.041404][ C0] [ 17.041404][ C0] *** DEADLOCK *** [ 17.041404][ C0] [ 17.041547][ C0] 6 locks held by mausezahn/365: [ 17.041644][ C0] #0: ffffffffa2d77d20 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x561/0x1490 [ 17.041819][ C0] #1: ffffffffa2d77d20 (rcu_read_lock){....}-{1:3}, at: ip_output+0xa9/0x660 [ 17.041989][ C0] #2: ffffffffa2d77d20 (rcu_read_lock){....}-{1:3}, at: ip_finish_output2+0x25c/0x1bc0 [ 17.042162][ C0] #3: ffffffffa2d77cc0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1fe/0x1b60 [ 17.042332][ C0] #4: ffffffffa2d77d20 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x11d/0x7f0 [ 17.042502][ C0] #5: ffffffffa2d77d20 (rcu_read_lock){....}-{1:3}, at: ipv6_get_lladdr+0x36/0x3f0 [ 17.042670][ C0] [ 17.042670][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 17.042838][ C0] -> (acaddr_hash_lock){+.+.}-{3:3} { [ 17.042940][ C0] HARDIRQ-ON-W at: [ 17.043016][ C0] __lock_acquire+0x378/0xc10 [ 17.043147][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.043270][ C0] _raw_spin_lock+0x33/0x40 [ 17.043394][ C0] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 17.043540][ C0] __ipv6_dev_ac_inc+0x57e/0x930 [ 17.043663][ C0] addrconf_join_anycast+0x1bc/0x260 [ 17.043787][ C0] __ipv6_ifa_notify+0x75b/0xad0 [ 17.043909][ C0] addrconf_dad_completed+0x14b/0xe10 [ 17.044055][ C0] addrconf_dad_begin+0x2e1/0x540 [ 17.044180][ C0] addrconf_dad_work+0x170/0x930 [ 17.044303][ C0] process_one_work+0xdf8/0x1410 [ 17.044427][ C0] worker_thread+0x4f1/0xd60 [ 17.044548][ C0] kthread+0x367/0x460 [ 17.044668][ C0] ret_from_fork+0x474/0x6b0 [ 17.044791][ C0] ret_from_fork_asm+0x11/0x20 [ 17.044912][ C0] SOFTIRQ-ON-W at: [ 17.044985][ C0] __lock_acquire+0x378/0xc10 [ 17.045111][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.045232][ C0] _raw_spin_lock+0x33/0x40 [ 17.045353][ C0] __ipv6_dev_ac_dec+0x236/0x5d0 [ 17.045475][ C0] addrconf_leave_anycast+0x1bc/0x260 [ 17.045620][ C0] __ipv6_ifa_notify+0x6b4/0xad0 [ 17.045744][ C0] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 17.045890][ C0] addrconf_notify+0x339/0xf30 [ 17.046011][ C0] notifier_call_chain+0xb0/0x320 [ 17.046136][ C0] __netdev_upper_dev_link+0x3a5/0x590 [ 17.046287][ C0] netdev_master_upper_dev_link+0x86/0xb0 [ 17.046435][ C0] vrf_add_slave+0xdd/0x210 [vrf] [ 17.046561][ C0] do_set_master+0x357/0x580 [ 17.046684][ C0] do_setlink.isra.0+0xa31/0x2750 [ 17.046806][ C0] rtnl_newlink+0x8d1/0xef0 [ 17.046926][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.047046][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 17.047172][ C0] netlink_unicast+0x486/0x750 [ 17.047292][ C0] netlink_sendmsg+0x735/0xc60 [ 17.047414][ C0] ____sys_sendmsg+0x419/0x850 [ 17.047536][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 17.047656][ C0] __sys_sendmsg+0x145/0x1f0 [ 17.047778][ C0] do_syscall_64+0x117/0x590 [ 17.047900][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.048046][ C0] INITIAL USE at: [ 17.048124][ C0] __lock_acquire+0x378/0xc10 [ 17.048246][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.048367][ C0] _raw_spin_lock+0x33/0x40 [ 17.048492][ C0] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 17.048639][ C0] __ipv6_dev_ac_inc+0x57e/0x930 [ 17.048760][ C0] addrconf_join_anycast+0x1bc/0x260 [ 17.048880][ C0] __ipv6_ifa_notify+0x75b/0xad0 [ 17.049003][ C0] addrconf_dad_completed+0x14b/0xe10 [ 17.049132][ C0] addrconf_dad_begin+0x2e1/0x540 [ 17.049253][ C0] addrconf_dad_work+0x170/0x930 [ 17.049373][ C0] process_one_work+0xdf8/0x1410 [ 17.049494][ C0] worker_thread+0x4f1/0xd60 [ 17.049616][ C0] kthread+0x367/0x460 [ 17.049744][ C0] ret_from_fork+0x474/0x6b0 [ 17.049866][ C0] ret_from_fork_asm+0x11/0x20 [ 17.049986][ C0] } [ 17.050037][ C0] ... key at: [] acaddr_hash_lock+0x18/0x45a0 [ 17.050190][ C0] ... acquired at: [ 17.050261][ C0] __lock_acquire+0x508/0xc10 [ 17.050359][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.050457][ C0] _raw_spin_lock+0x33/0x40 [ 17.050554][ C0] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 17.050675][ C0] __ipv6_dev_ac_inc+0x57e/0x930 [ 17.050772][ C0] addrconf_join_anycast+0x1bc/0x260 [ 17.050869][ C0] __ipv6_ifa_notify+0x75b/0xad0 [ 17.050965][ C0] addrconf_dad_completed+0x14b/0xe10 [ 17.051067][ C0] addrconf_dad_begin+0x2e1/0x540 [ 17.051164][ C0] addrconf_dad_work+0x170/0x930 [ 17.051262][ C0] process_one_work+0xdf8/0x1410 [ 17.051359][ C0] worker_thread+0x4f1/0xd60 [ 17.051457][ C0] kthread+0x367/0x460 [ 17.051530][ C0] ret_from_fork+0x474/0x6b0 [ 17.051627][ C0] ret_from_fork_asm+0x11/0x20 [ 17.051727][ C0] [ 17.051777][ C0] -> (&ndev->lock){++.-}-{3:3} { [ 17.051877][ C0] HARDIRQ-ON-W at: [ 17.051951][ C0] __lock_acquire+0x378/0xc10 [ 17.052079][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.052201][ C0] _raw_write_lock_bh+0x38/0x50 [ 17.052322][ C0] addrconf_permanent_addr+0x108/0x9c0 [ 17.052443][ C0] addrconf_notify+0x151/0xf30 [ 17.052564][ C0] notifier_call_chain+0xb0/0x320 [ 17.052685][ C0] __dev_notify_flags+0xde/0x280 [ 17.052807][ C0] netif_change_flags+0xfe/0x190 [ 17.052931][ C0] do_setlink.isra.0+0x1cc3/0x2750 [ 17.053052][ C0] rtnl_newlink+0x8d1/0xef0 [ 17.053181][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.053299][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 17.053420][ C0] netlink_unicast+0x486/0x750 [ 17.053540][ C0] netlink_sendmsg+0x735/0xc60 [ 17.053661][ C0] ____sys_sendmsg+0x419/0x850 [ 17.053783][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 17.053904][ C0] __sys_sendmsg+0x145/0x1f0 [ 17.054024][ C0] do_syscall_64+0x117/0x590 [ 17.054147][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.054291][ C0] HARDIRQ-ON-R at: [ 17.054364][ C0] __lock_acquire+0x378/0xc10 [ 17.054486][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.054608][ C0] _raw_read_lock_bh+0x44/0x80 [ 17.054731][ C0] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 17.054875][ C0] inet6_fill_link_af+0x5c/0xe0 [ 17.054995][ C0] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 17.055144][ C0] rtnl_getlink+0x9c9/0xeb0 [ 17.055269][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.055392][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 17.055514][ C0] netlink_unicast+0x486/0x750 [ 17.055636][ C0] netlink_sendmsg+0x735/0xc60 [ 17.055759][ C0] ____sys_sendmsg+0x419/0x850 [ 17.055880][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 17.056004][ C0] __sys_sendmsg+0x145/0x1f0 [ 17.056130][ C0] do_syscall_64+0x117/0x590 [ 17.056253][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.056397][ C0] IN-SOFTIRQ-R at: [ 17.056471][ C0] __lock_acquire+0x378/0xc10 [ 17.056593][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.056716][ C0] _raw_read_lock_bh+0x44/0x80 [ 17.056839][ C0] ipv6_get_lladdr+0xa8/0x3f0 [ 17.056960][ C0] ndisc_send_ns+0xf3/0x120 [ 17.057085][ C0] ndisc_solicit+0x314/0x480 [ 17.057206][ C0] neigh_probe+0xb3/0x100 [ 17.057329][ C0] __neigh_event_send+0x802/0x1070 [ 17.057452][ C0] neigh_resolve_output+0xbe/0x140 [ 17.057574][ C0] ip6_finish_output2+0x423/0x1300 [ 17.057694][ C0] ip6_finish_output+0x646/0xda0 [ 17.057815][ C0] ip6_output+0x23f/0x7f0 [ 17.057933][ C0] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 17.058082][ C0] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 17.058202][ C0] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 17.058345][ C0] dev_hard_start_xmit+0xf8/0x690 [ 17.058468][ C0] __dev_queue_xmit+0xbf4/0x1b60 [ 17.058591][ C0] ip_finish_output2+0x5b9/0x1bc0 [ 17.058715][ C0] ip_output+0x1ca/0x660 [ 17.058842][ C0] ip_rcv+0xdc/0x3d0 [ 17.058939][ C0] __netif_receive_skb_one_core+0xfc/0x180 [ 17.059087][ C0] process_backlog+0x2bc/0x1490 [ 17.059208][ C0] __napi_poll+0xa7/0x3b0 [ 17.059329][ C0] net_rx_action+0x513/0xf50 [ 17.059451][ C0] handle_softirqs+0x1d8/0x940 [ 17.059574][ C0] do_softirq+0xa9/0xe0 [ 17.059701][ C0] __local_bh_enable_ip+0x113/0x140 [ 17.059822][ C0] __dev_queue_xmit+0x95b/0x1b60 [ 17.059943][ C0] packet_snd+0xfad/0x1990 [ 17.060072][ C0] __sys_sendto+0x2c9/0x400 [ 17.060196][ C0] __x64_sys_sendto+0xe4/0x1f0 [ 17.060316][ C0] do_syscall_64+0x117/0x590 [ 17.060438][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.060587][ C0] INITIAL USE at: [ 17.060660][ C0] __lock_acquire+0x378/0xc10 [ 17.060782][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.060904][ C0] _raw_write_lock_bh+0x38/0x50 [ 17.061025][ C0] addrconf_permanent_addr+0x108/0x9c0 [ 17.061152][ C0] addrconf_notify+0x151/0xf30 [ 17.061274][ C0] notifier_call_chain+0xb0/0x320 [ 17.061394][ C0] __dev_notify_flags+0xde/0x280 [ 17.061516][ C0] netif_change_flags+0xfe/0x190 [ 17.061637][ C0] do_setlink.isra.0+0x1cc3/0x2750 [ 17.061758][ C0] rtnl_newlink+0x8d1/0xef0 [ 17.061878][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.061998][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 17.062125][ C0] netlink_unicast+0x486/0x750 [ 17.062245][ C0] netlink_sendmsg+0x735/0xc60 [ 17.062366][ C0] ____sys_sendmsg+0x419/0x850 [ 17.062487][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 17.062609][ C0] __sys_sendmsg+0x145/0x1f0 [ 17.062731][ C0] do_syscall_64+0x117/0x590 [ 17.062851][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.062995][ C0] INITIAL READ USE at: [ 17.063071][ C0] __lock_acquire+0x378/0xc10 [ 17.063193][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.063314][ C0] _raw_read_lock_bh+0x44/0x80 [ 17.063438][ C0] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 17.063584][ C0] inet6_fill_link_af+0x5c/0xe0 [ 17.063706][ C0] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 17.063850][ C0] rtnl_getlink+0x9c9/0xeb0 [ 17.063971][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.064095][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 17.064220][ C0] netlink_unicast+0x486/0x750 [ 17.064342][ C0] netlink_sendmsg+0x735/0xc60 [ 17.064464][ C0] ____sys_sendmsg+0x419/0x850 [ 17.064586][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 17.064708][ C0] __sys_sendmsg+0x145/0x1f0 [ 17.064830][ C0] do_syscall_64+0x117/0x590 [ 17.064952][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.065099][ C0] } [ 17.065147][ C0] ... key at: [] __key.37+0x0/0x40 [ 17.065293][ C0] ... acquired at: [ 17.065368][ C0] mark_lock+0x1d7/0xa00 [ 17.065465][ C0] mark_usage+0x42/0x170 [ 17.065560][ C0] __lock_acquire+0x378/0xc10 [ 17.065658][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.065758][ C0] _raw_read_lock_bh+0x44/0x80 [ 17.065858][ C0] ipv6_get_lladdr+0xa8/0x3f0 [ 17.065954][ C0] ndisc_send_ns+0xf3/0x120 [ 17.066053][ C0] ndisc_solicit+0x314/0x480 [ 17.066154][ C0] neigh_probe+0xb3/0x100 [ 17.066253][ C0] __neigh_event_send+0x802/0x1070 [ 17.066349][ C0] neigh_resolve_output+0xbe/0x140 [ 17.066445][ C0] ip6_finish_output2+0x423/0x1300 [ 17.066541][ C0] ip6_finish_output+0x646/0xda0 [ 17.066641][ C0] ip6_output+0x23f/0x7f0 [ 17.066739][ C0] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 17.066858][ C0] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 17.066955][ C0] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 17.067085][ C0] dev_hard_start_xmit+0xf8/0x690 [ 17.067182][ C0] __dev_queue_xmit+0xbf4/0x1b60 [ 17.067279][ C0] ip_finish_output2+0x5b9/0x1bc0 [ 17.067375][ C0] ip_output+0x1ca/0x660 [ 17.067472][ C0] ip_rcv+0xdc/0x3d0 [ 17.067547][ C0] __netif_receive_skb_one_core+0xfc/0x180 [ 17.067668][ C0] process_backlog+0x2bc/0x1490 [ 17.067764][ C0] __napi_poll+0xa7/0x3b0 [ 17.067859][ C0] net_rx_action+0x513/0xf50 [ 17.067954][ C0] handle_softirqs+0x1d8/0x940 [ 17.068052][ C0] do_softirq+0xa9/0xe0 [ 17.068128][ C0] __local_bh_enable_ip+0x113/0x140 [ 17.068228][ C0] __dev_queue_xmit+0x95b/0x1b60 [ 17.068325][ C0] packet_snd+0xfad/0x1990 [ 17.068422][ C0] __sys_sendto+0x2c9/0x400 [ 17.068522][ C0] __x64_sys_sendto+0xe4/0x1f0 [ 17.068618][ C0] do_syscall_64+0x117/0x590 [ 17.068719][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.068840][ C0] [ 17.068888][ C0] [ 17.068888][ C0] stack backtrace: [ 17.069008][ C0] CPU: 0 UID: 0 PID: 365 Comm: mausezahn Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 17.069011][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.069013][ C0] Call Trace: [ 17.069014][ C0] [ 17.069015][ C0] dump_stack_lvl+0x6f/0xa0 [ 17.069020][ C0] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 17.069023][ C0] mark_lock_irq+0x989/0x9c0 [ 17.069026][ C0] mark_lock+0x1d7/0xa00 [ 17.069028][ C0] mark_usage+0x42/0x170 [ 17.069029][ C0] __lock_acquire+0x378/0xc10 [ 17.069031][ C0] ? __lock_acquire+0x508/0xc10 [ 17.069032][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.069034][ C0] ? ipv6_get_lladdr+0xa8/0x3f0 [ 17.069036][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.069039][ C0] ? lock_acquire+0x134/0x160 [ 17.069041][ C0] _raw_read_lock_bh+0x44/0x80 [ 17.069042][ C0] ? ipv6_get_lladdr+0xa8/0x3f0 [ 17.069044][ C0] ipv6_get_lladdr+0xa8/0x3f0 [ 17.069046][ C0] ndisc_send_ns+0xf3/0x120 [ 17.069048][ C0] ? __ipv6_chk_addr_and_flags+0x251/0x5f0 [ 17.069050][ C0] ? ndisc_parse_options+0x30/0x30 [ 17.069051][ C0] ? __ipv6_chk_addr_and_flags+0x25b/0x5f0 [ 17.069053][ C0] ndisc_solicit+0x314/0x480 [ 17.069055][ C0] ? ndisc_send_ns+0x120/0x120 [ 17.069056][ C0] ? neigh_probe+0x62/0x100 [ 17.069058][ C0] neigh_probe+0xb3/0x100 [ 17.069063][ C0] __neigh_event_send+0x802/0x1070 [ 17.069065][ C0] ? warn_bogus_irq_restore+0x1/0x20 [ 17.069068][ C0] ? ___neigh_create+0x811/0x1070 [ 17.069070][ C0] neigh_resolve_output+0xbe/0x140 [ 17.069072][ C0] ip6_finish_output2+0x423/0x1300 [ 17.069074][ C0] ? ip6_xmit+0x2000/0x2000 [ 17.069076][ C0] ? lock_acquire.part.0+0xbc/0x260 [ 17.069077][ C0] ? find_held_lock+0x2b/0x80 [ 17.069080][ C0] ? __lock_release.isra.0+0x6b/0x1a0 [ 17.069081][ C0] ? ip6_mtu+0x15d/0x310 [ 17.069084][ C0] ip6_finish_output+0x646/0xda0 [ 17.069086][ C0] ip6_output+0x23f/0x7f0 [ 17.069088][ C0] ? ip6_finish_output+0xda0/0xda0 [ 17.069089][ C0] ? l3mdev_l3_out.constprop.0+0xe5/0x340 [ 17.069092][ C0] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 17.069096][ C0] ? ip_route_input+0x420/0x420 [ip6_tunnel] [ 17.069098][ C0] ? pskb_expand_head+0x4ac/0xf50 [ 17.069100][ C0] ? __lock_acquire+0x508/0xc10 [ 17.069102][ C0] ? __pskb_copy_fclone+0x1080/0x1080 [ 17.069104][ C0] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 17.069106][ C0] ? __ipv6_chk_addr_and_flags+0x230/0x5f0 [ 17.069109][ C0] ? gre_build_header+0xa70/0xa70 [ip6_gre] [ 17.069111][ C0] ? ip6_tnl_xmit_ctl+0x21e/0x390 [ip6_tunnel] [ 17.069113][ C0] ? __asan_memcpy+0x3c/0x60 [ 17.069117][ C0] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 17.069119][ C0] ? __gre6_xmit+0x1910/0x1910 [ip6_gre] [ 17.069121][ C0] ? sock_def_readable+0x156/0x490 [ 17.069122][ C0] ? find_held_lock+0x2b/0x80 [ 17.069125][ C0] ? dev_queue_xmit_nit+0x642/0x9e0 [ 17.069128][ C0] dev_hard_start_xmit+0xf8/0x690 [ 17.069130][ C0] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 17.069132][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.069134][ C0] __dev_queue_xmit+0xbf4/0x1b60 [ 17.069136][ C0] ? __lock_acquire+0x508/0xc10 [ 17.069138][ C0] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 17.069140][ C0] ? find_held_lock+0x2b/0x80 [ 17.069142][ C0] ? __lock_release.isra.0+0x6b/0x1a0 [ 17.069144][ C0] ? ___neigh_create+0x811/0x1070 [ 17.069146][ C0] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 17.069148][ C0] ip_finish_output2+0x5b9/0x1bc0 [ 17.069150][ C0] ? ip_dst_mtu_maybe_forward+0x261/0x670 [ 17.069152][ C0] ? ip4_dst_hoplimit+0x320/0x320 [ 17.069154][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.069157][ C0] ip_output+0x1ca/0x660 [ 17.069158][ C0] ? ip_finish_output+0x460/0x460 [ 17.069159][ C0] ? ip4_frag_init+0x720/0x720 [ 17.069161][ C0] ? ip_forward+0xfa7/0x1570 [ 17.069164][ C0] ? process_backlog+0x561/0x1490 [ 17.069165][ C0] ip_rcv+0xdc/0x3d0 [ 17.069167][ C0] ? ip_local_deliver+0x4c0/0x4c0 [ 17.069169][ C0] ? mark_usage+0x61/0x170 [ 17.069170][ C0] ? __lock_acquire+0x508/0xc10 [ 17.069172][ C0] ? init_data_structures_once.part.0+0x1a7/0x450 [ 17.069173][ C0] __netif_receive_skb_one_core+0xfc/0x180 [ 17.069175][ C0] ? lock_acquire.part.0+0xbc/0x260 [ 17.069176][ C0] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 17.069178][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.069180][ C0] process_backlog+0x2bc/0x1490 [ 17.069182][ C0] __napi_poll+0xa7/0x3b0 [ 17.069184][ C0] net_rx_action+0x513/0xf50 [ 17.069186][ C0] ? __napi_poll+0x3b0/0x3b0 [ 17.069187][ C0] ? find_held_lock+0x2b/0x80 [ 17.069191][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.069193][ C0] handle_softirqs+0x1d8/0x940 [ 17.069194][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.069196][ C0] ? _local_bh_enable+0xd0/0xd0 [ 17.069197][ C0] ? trace_csd_function_exit+0xb3/0x1a0 [ 17.069200][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.069201][ C0] do_softirq+0xa9/0xe0 [ 17.069203][ C0] [ 17.069203][ C0] [ 17.069204][ C0] ? __dev_queue_xmit+0x946/0x1b60 [ 17.069206][ C0] __local_bh_enable_ip+0x113/0x140 [ 17.069207][ C0] __dev_queue_xmit+0x95b/0x1b60 [ 17.069209][ C0] ? _copy_from_iter+0x1bb/0x1810 [ 17.069214][ C0] ? _copy_from_iter_flushcache+0x1970/0x1970 [ 17.069215][ C0] ? net_dim+0x730/0xd70 [ 17.069217][ C0] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 17.069220][ C0] ? packet_release+0xc70/0xc70 [ 17.069223][ C0] packet_snd+0xfad/0x1990 [ 17.069226][ C0] ? tpacket_snd+0x19e0/0x19e0 [ 17.069227][ C0] ? __might_fault+0x97/0x140 [ 17.069230][ C0] ? __might_fault+0x97/0x140 [ 17.069231][ C0] ? __might_fault+0x97/0x140 [ 17.069233][ C0] __sys_sendto+0x2c9/0x400 [ 17.069235][ C0] ? __ia32_sys_getpeername+0xd0/0xd0 [ 17.069238][ C0] ? sock_ioctl+0x3cb/0x5f0 [ 17.069241][ C0] ? do_user_addr_fault+0x325/0xe30 [ 17.069244][ C0] __x64_sys_sendto+0xe4/0x1f0 [ 17.069246][ C0] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 17.069249][ C0] ? lockdep_hardirqs_on+0x8c/0x130 [ 17.069251][ C0] ? do_syscall_64+0x82/0x590 [ 17.069252][ C0] do_syscall_64+0x117/0x590 [ 17.069253][ C0] ? trace_hardirqs_off+0xd/0x30 [ 17.069255][ C0] ? exc_page_fault+0xee/0x100 [ 17.069256][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.069258][ C0] RIP: 0033:0x7f756e32508e [ 17.069261][ C0] Code: 4d 89 d8 e8 94 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 [ 17.069263][ C0] RSP: 002b:00007ffc5c68f140 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 17.069266][ C0] RAX: ffffffffffffffda RBX: 0000557f7821ab22 RCX: 00007f756e32508e [ 17.069267][ C0] RDX: 0000000000000062 RSI: 0000557f7821ab22 RDI: 0000000000000005 [ 17.069268][ C0] RBP: 00007ffc5c68f150 R08: 00007ffc5c68f1a0 R09: 0000000000000014 [ 17.069269][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000557f7821a830 [ 17.069269][ C0] R13: 0000000000000062 R14: 0000000000000005 R15: 0000557f7821a830 [ 17.069272][ C0]