[ 15.990649][ T271] ip (271) used greatest stack depth: 24112 bytes left [ 15.990669][ T271] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 15.990671][ T271] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 271, name: ip [ 15.990672][ T271] preempt_count: 2, expected: 0 [ 15.990673][ T271] RCU nest depth: 0, expected: 0 [ 15.990674][ T271] locks held by ip/271: 5, last CPU#3: [ 15.990677][ T271] #0: ffffffffb94167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 15.990688][ T271] #1: ffffffffb957ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 15.990693][ T271] #2: ffffffffb957de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 15.990697][ T271] #3: ffffffffb949d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 15.990701][ T271] #4: ffffffffb949d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 15.990705][ T271] irq event stamp: 23174 [ 15.990706][ T271] hardirqs last enabled at (23173): [] __down_trylock_console_sem+0x86/0xa0 [ 15.990709][ T271] hardirqs last disabled at (23174): [] console_emit_next_record+0x3d4/0x4c0 [ 15.990711][ T271] softirqs last enabled at (21578): [] netlink_release+0x17b/0xcf0 [ 15.990715][ T271] softirqs last disabled at (21576): [] netlink_release+0xd2/0xcf0 [ 15.990718][ T271] Preemption disabled at: [ 15.990718][ T271] [<0000000000000000>] 0x0 [ 15.990725][ T271] CPU: 3 UID: 0 PID: 271 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 15.990728][ T271] Tainted: [W]=WARN [ 15.990729][ T271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.990731][ T271] Call Trace: [ 15.990733][ T271] [ 15.990734][ T271] dump_stack_lvl+0x6f/0xa0 [ 15.990741][ T271] __might_resched.cold+0x1fe/0x2c1 [ 15.990745][ T271] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 15.990750][ T271] ? __kmalloc_noprof+0xdb/0x760 [ 15.990754][ T271] __kmalloc_noprof+0x443/0x760 [ 15.990756][ T271] ? alloc_buf.isra.0+0x4b/0x260 [ 15.990762][ T271] ? do_raw_spin_unlock+0x59/0x250 [ 15.990765][ T271] alloc_buf.isra.0+0x4b/0x260 [ 15.990769][ T271] put_chars+0x1e1/0x2f0 [ 15.990771][ T271] ? __send_to_port+0x420/0x420 [ 15.990773][ T271] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 15.990776][ T271] ? validate_chain+0x38b/0xc20 [ 15.990781][ T271] hvc_console_print+0x292/0x780 [ 15.990789][ T271] ? hvc_write+0x3a0/0x3a0 [ 15.990792][ T271] ? rcu_is_watching+0x16/0xd0 [ 15.990794][ T271] ? lock_acquire+0x13c/0x160 [ 15.990798][ T271] console_emit_next_record+0x22f/0x4c0 [ 15.990802][ T271] ? devkmsg_read+0x4b0/0x4b0 [ 15.990804][ T271] ? console_flush_one_record+0x106/0x710 [ 15.990807][ T271] ? rcu_is_watching+0x16/0xd0 [ 15.990809][ T271] ? lock_acquire+0x13c/0x160 [ 15.990813][ T271] console_flush_one_record+0x46f/0x710 [ 15.990817][ T271] ? console_emit_next_record+0x4c0/0x4c0 [ 15.990819][ T271] ? __lock_acquire+0x518/0xc20 [ 15.990824][ T271] console_unlock+0xee/0x1f0 [ 15.990827][ T271] ? console_flush_one_record+0x710/0x710 [ 15.990829][ T271] ? rcu_is_watching+0x16/0xd0 [ 15.990831][ T271] ? lock_acquire+0xe0/0x160 [ 15.990834][ T271] ? __down_trylock_console_sem+0x5e/0xa0 [ 15.990836][ T271] ? vprintk_emit+0x320/0x3e0 [ 15.990839][ T271] vprintk_emit+0x37c/0x3e0 [ 15.990842][ T271] ? wake_up_klogd_work_func+0x90/0x90 [ 15.990845][ T271] ? __lock_acquire+0x518/0xc20 [ 15.990849][ T271] _printk+0xc7/0x100 [ 15.990853][ T271] ? snapshot_read.cold+0x21/0x21 [ 15.990856][ T271] ? do_raw_spin_lock+0x131/0x280 [ 15.990858][ T271] ? __rwlock_init+0x150/0x150 [ 15.990862][ T271] ? do_raw_spin_lock+0x131/0x280 [ 15.990865][ T271] do_exit.cold+0x82/0x9c [ 15.990869][ T271] ? exit_notify+0x890/0x890 [ 15.990870][ T271] ? __lock_release.isra.0+0x69/0x1a0 [ 15.990873][ T271] ? rcu_is_watching+0x16/0xd0 [ 15.990876][ T271] do_group_exit+0xb8/0x370 [ 15.990879][ T271] __x64_sys_exit_group+0x3c/0x50 [ 15.990881][ T271] x64_sys_call+0x1567/0x1570 [ 15.990884][ T271] do_syscall_64+0xff/0x530 [ 15.990888][ T271] ? exc_page_fault+0xee/0x100 [ 15.990891][ T271] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 15.990893][ T271] RIP: 0033:0x7ff3f2a251b8 [ 15.990895][ T271] Code: Unable to access opcode bytes at 0x7ff3f2a2518e. [ 15.990896][ T271] RSP: 002b:00007fffa6d20a98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 15.990899][ T271] RAX: ffffffffffffffda RBX: 00007ff3f2b55f88 RCX: 00007ff3f2a251b8 [ 15.990900][ T271] RDX: 00007ff3f276ffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 15.990901][ T271] RBP: 00007fffa6d20af0 R08: 0000000000000000 R09: 0000000000000050 [ 15.990902][ T271] R10: 00007fffa6d208b0 R11: 0000000000000246 R12: 0000000000000001 [ 15.990903][ T271] R13: 0000000000000000 R14: 00007ff3f2b54680 R15: 00007ff3f2b55fa0 [ 15.990909][ T271] [ 16.186547][ T282] ip (282) used greatest stack depth: 24080 bytes left [ 25.846559][ T320] GACT probability NOT on [ 25.846580][ T320] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 25.846583][ T320] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 320, name: modprobe [ 25.846586][ T320] preempt_count: 1, expected: 0 [ 25.846587][ T320] RCU nest depth: 0, expected: 0 [ 25.846589][ T320] locks held by modprobe/320: 4, last CPU#2: [ 25.846591][ T320] #0: ffffffffb957ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 25.846604][ T320] #1: ffffffffb957de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 25.846612][ T320] #2: ffffffffb949d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 25.846618][ T320] #3: ffffffffb949d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 25.846624][ T320] irq event stamp: 33322 [ 25.846625][ T320] hardirqs last enabled at (33321): [] __down_trylock_console_sem+0x86/0xa0 [ 25.846629][ T320] hardirqs last disabled at (33322): [] console_emit_next_record+0x3d4/0x4c0 [ 25.846632][ T320] softirqs last enabled at (32362): [] handle_softirqs+0x67c/0x900 [ 25.846636][ T320] softirqs last disabled at (31921): [] __irq_exit_rcu+0x145/0x1c0 [ 25.846640][ T320] Preemption disabled at: [ 25.846641][ T320] [] vprintk_emit+0x31b/0x3e0 [ 25.846647][ T320] CPU: 2 UID: 0 PID: 320 Comm: modprobe Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 25.846652][ T320] Tainted: [W]=WARN [ 25.846653][ T320] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 25.846655][ T320] Call Trace: [ 25.846658][ T320] [ 25.846660][ T320] dump_stack_lvl+0x6f/0xa0 [ 25.846667][ T320] ? vprintk_emit+0x31b/0x3e0 [ 25.846670][ T320] __might_resched.cold+0x1fe/0x2c1 [ 25.846676][ T320] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 25.846681][ T320] ? __kmalloc_noprof+0xdb/0x760 [ 25.846688][ T320] __kmalloc_noprof+0x443/0x760 [ 25.846691][ T320] ? alloc_buf.isra.0+0x4b/0x260 [ 25.846701][ T320] ? do_raw_spin_unlock+0x59/0x250 [ 25.846704][ T320] alloc_buf.isra.0+0x4b/0x260 [ 25.846710][ T320] put_chars+0x1e1/0x2f0 [ 25.846712][ T320] ? desc_read_finalized_seq+0x79/0x120 [ 25.846716][ T320] ? __send_to_port+0x420/0x420 [ 25.846721][ T320] ? rcu_read_lock_any_held+0x3c/0x90 [ 25.846725][ T320] ? validate_chain+0x38b/0xc20 [ 25.846733][ T320] hvc_console_print+0x292/0x780 [ 25.846738][ T320] ? __lock_acquire+0x518/0xc20 [ 25.846740][ T320] ? __lock_acquire+0x518/0xc20 [ 25.846748][ T320] ? hvc_write+0x3a0/0x3a0 [ 25.846751][ T320] ? console_emit_next_record+0x1df/0x4c0 [ 25.846756][ T320] ? rcu_is_watching+0x16/0xd0 [ 25.846759][ T320] ? lock_acquire+0x13c/0x160 [ 25.846766][ T320] console_emit_next_record+0x22f/0x4c0 [ 25.846773][ T320] ? devkmsg_read+0x4b0/0x4b0 [ 25.846775][ T320] ? console_flush_one_record+0x106/0x710 [ 25.846781][ T320] ? rcu_is_watching+0x16/0xd0 [ 25.846783][ T320] ? lock_acquire+0x13c/0x160 [ 25.846790][ T320] console_flush_one_record+0x46f/0x710 [ 25.846797][ T320] ? console_emit_next_record+0x4c0/0x4c0 [ 25.846800][ T320] ? __lock_acquire+0x518/0xc20 [ 25.846809][ T320] console_unlock+0xee/0x1f0 [ 25.846814][ T320] ? console_flush_one_record+0x710/0x710 [ 25.846817][ T320] ? rcu_is_watching+0x16/0xd0 [ 25.846819][ T320] ? lock_acquire+0xe0/0x160 [ 25.846826][ T320] ? __down_trylock_console_sem+0x5e/0xa0 [ 25.846829][ T320] ? vprintk_emit+0x320/0x3e0 [ 25.846833][ T320] vprintk_emit+0x37c/0x3e0 [ 25.846840][ T320] ? wake_up_klogd_work_func+0x90/0x90 [ 25.846849][ T320] ? gact_cleanup_module+0xf0/0xf0 [act_gact] [ 25.846853][ T320] _printk+0xc7/0x100 [ 25.846859][ T320] ? snapshot_read.cold+0x21/0x21 [ 25.846870][ T320] ? do_one_initcall+0x113/0x4f0 [ 25.846875][ T320] gact_init_module+0x15/0x1000 [act_gact] [ 25.846878][ T320] do_one_initcall+0x124/0x4f0 [ 25.846883][ T320] ? trace_event_raw_event_initcall_level+0x280/0x280 [ 25.846891][ T320] ? do_init_module+0xae/0x8a0 [ 25.846894][ T320] ? kasan_unpoison+0x44/0x70 [ 25.846903][ T320] do_init_module+0x2ad/0x8a0 [ 25.846909][ T320] ? lockdep_hardirqs_on+0x91/0x130 [ 25.846914][ T320] ? free_module+0x470/0x470 [ 25.846918][ T320] ? kfree+0x123/0x590 [ 25.846925][ T320] load_module+0x1424/0x1bb0 [ 25.846934][ T320] ? security_kernel_post_read_file+0x2f/0x60 [ 25.846941][ T320] ? layout_and_allocate.isra.0+0x680/0x680 [ 25.846946][ T320] ? __ia32_sys_fsconfig+0x180/0x180 [ 25.846952][ T320] ? backing_file_read_iter+0x541/0x790 [ 25.846957][ T320] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 25.846963][ T320] init_module_from_file+0x11f/0x1a0 [ 25.846968][ T320] ? __do_sys_init_module+0x270/0x270 [ 25.846981][ T320] ? __rwlock_init+0x150/0x150 [ 25.846987][ T320] ? do_raw_spin_unlock+0x59/0x250 [ 25.846993][ T320] idempotent_init_module+0x37b/0x7c0 [ 25.846997][ T320] ? init_module_from_file+0x1a0/0x1a0 [ 25.847007][ T320] ? cap_capable+0x1d7/0x3d0 [ 25.847011][ T320] ? __x64_sys_pread64+0x18d/0x250 [ 25.847020][ T320] __x64_sys_finit_module+0xdf/0x190 [ 25.847022][ T320] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 25.847030][ T320] do_syscall_64+0xff/0x530 [ 25.847034][ T320] ? exc_page_fault+0xee/0x100 [ 25.847039][ T320] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 25.847042][ T320] RIP: 0033:0x7f22e164737d [ 25.847048][ T320] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48 [ 25.847050][ T320] RSP: 002b:00007ffd3b143888 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 25.847054][ T320] RAX: ffffffffffffffda RBX: 00005590e4050810 RCX: 00007f22e164737d [ 25.847056][ T320] RDX: 0000000000000000 RSI: 00005590ac323ffd RDI: 0000000000000000 [ 25.847058][ T320] RBP: 00007ffd3b143920 R08: 0000000000000000 R09: 0000000000000000 [ 25.847059][ T320] R10: 0000000000000000 R11: 0000000000000246 R12: 00005590ac323ffd [ 25.847060][ T320] R13: 00005590e4050960 R14: 0000000000040000 R15: 0000000000000000 [ 25.847073][ T320] [ 42.024728][ T394] neighbour: arp_cache: neighbor table overflow! [ 42.024830][ T394] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 42.024832][ T394] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 394, name: ip [ 42.024833][ T394] preempt_count: 1, expected: 0 [ 42.024834][ T394] RCU nest depth: 0, expected: 0 [ 42.024835][ T394] locks held by ip/394: 5, last CPU#3: [ 42.024837][ T394] #0: ffffffffb9d1b740 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg+0x2b0/0xbd0 [ 42.024849][ T394] #1: ffffffffb957ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 42.024854][ T394] #2: ffffffffb957de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 42.024858][ T394] #3: ffffffffb949d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 42.024862][ T394] #4: ffffffffb949d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 42.024866][ T394] irq event stamp: 18242 [ 42.024867][ T394] hardirqs last enabled at (18241): [] __down_trylock_console_sem+0x86/0xa0 [ 42.024870][ T394] hardirqs last disabled at (18242): [] console_emit_next_record+0x3d4/0x4c0 [ 42.024872][ T394] softirqs last enabled at (18234): [] neigh_forced_gc+0x3bc/0x510 [ 42.024875][ T394] softirqs last disabled at (18232): [] neigh_forced_gc+0x144/0x510 [ 42.024877][ T394] Preemption disabled at: [ 42.024878][ T394] [] vprintk_emit+0x31b/0x3e0 [ 42.024883][ T394] CPU: 3 UID: 0 PID: 394 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 42.024886][ T394] Tainted: [W]=WARN [ 42.024887][ T394] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 42.024889][ T394] Call Trace: [ 42.024890][ T394] [ 42.024892][ T394] dump_stack_lvl+0x6f/0xa0 [ 42.024898][ T394] ? vprintk_emit+0x31b/0x3e0 [ 42.024900][ T394] __might_resched.cold+0x1fe/0x2c1 [ 42.024904][ T394] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 42.024909][ T394] ? __kmalloc_noprof+0xdb/0x760 [ 42.024913][ T394] __kmalloc_noprof+0x443/0x760 [ 42.024915][ T394] ? alloc_buf.isra.0+0x4b/0x260 [ 42.024921][ T394] ? do_raw_spin_unlock+0x59/0x250 [ 42.024924][ T394] alloc_buf.isra.0+0x4b/0x260 [ 42.024928][ T394] put_chars+0x1e1/0x2f0 [ 42.024931][ T394] ? __send_to_port+0x420/0x420 [ 42.024934][ T394] ? validate_chain+0x34a/0xc20 [ 42.024939][ T394] hvc_console_print+0x292/0x780 [ 42.024943][ T394] ? __lock_acquire+0x518/0xc20 [ 42.024948][ T394] ? hvc_write+0x3a0/0x3a0 [ 42.024951][ T394] ? rcu_is_watching+0x16/0xd0 [ 42.024956][ T394] console_emit_next_record+0x22f/0x4c0 [ 42.024960][ T394] ? devkmsg_read+0x4b0/0x4b0 [ 42.024962][ T394] ? console_flush_one_record+0x106/0x710 [ 42.024965][ T394] ? rcu_is_watching+0x16/0xd0 [ 42.024967][ T394] ? lock_acquire+0x13c/0x160 [ 42.024971][ T394] console_flush_one_record+0x46f/0x710 [ 42.024975][ T394] ? console_emit_next_record+0x4c0/0x4c0 [ 42.024977][ T394] ? __lock_acquire+0x518/0xc20 [ 42.024983][ T394] console_unlock+0xee/0x1f0 [ 42.024986][ T394] ? console_flush_one_record+0x710/0x710 [ 42.024987][ T394] ? rcu_is_watching+0x16/0xd0 [ 42.024989][ T394] ? lock_acquire+0xe0/0x160 [ 42.024993][ T394] ? __down_trylock_console_sem+0x5e/0xa0 [ 42.024995][ T394] ? vprintk_emit+0x320/0x3e0 [ 42.024997][ T394] vprintk_emit+0x37c/0x3e0 [ 42.025000][ T394] ? wake_up_klogd_work_func+0x90/0x90 [ 42.025003][ T394] ? __lock_release.isra.0+0x69/0x1a0 [ 42.025007][ T394] _printk+0xc7/0x100 [ 42.025011][ T394] ? snapshot_read.cold+0x21/0x21 [ 42.025013][ T394] ? ___ratelimit+0x4e7/0xa00 [ 42.025019][ T394] ? idr_get_free+0x830/0x830 [ 42.025020][ T394] ? __lock_release.isra.0+0x69/0x1a0 [ 42.025027][ T394] neigh_alloc.cold+0x2a/0x36 [ 42.025032][ T394] ___neigh_create+0x63/0x1070 [ 42.025037][ T394] neigh_add+0x7eb/0xf10 [ 42.025040][ T394] ? __mutex_lock+0x980/0x1ea0 [ 42.025043][ T394] ? rtnetlink_rcv_msg+0x2b0/0xbd0 [ 42.025045][ T394] ? pneigh_create+0x4a0/0x4a0 [ 42.025057][ T394] rtnetlink_rcv_msg+0x2f8/0xbd0 [ 42.025060][ T394] ? rtnl_link_fill+0x920/0x920 [ 42.025061][ T394] ? __lock_acquire+0x518/0xc20 [ 42.025066][ T394] ? lock_acquire.part.0+0xd4/0x280 [ 42.025068][ T394] ? find_held_lock+0x2b/0x80 [ 42.025071][ T394] netlink_rcv_skb+0x14e/0x3a0 [ 42.025075][ T394] ? rtnl_link_fill+0x920/0x920 [ 42.025078][ T394] ? netlink_ack+0xcf0/0xcf0 [ 42.025084][ T394] ? netlink_deliver_tap+0xc5/0x330 [ 42.025086][ T394] ? netlink_deliver_tap+0x13c/0x330 [ 42.025091][ T394] netlink_unicast+0x486/0x750 [ 42.025095][ T394] ? netlink_attachskb+0x810/0x810 [ 42.025097][ T394] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160 [ 42.025099][ T394] ? lockdep_hardirqs_on+0x91/0x130 [ 42.025101][ T394] ? _raw_spin_unlock_irqrestore+0x53/0x80 [ 42.025106][ T394] netlink_sendmsg+0x75b/0xc90 [ 42.025110][ T394] ? netlink_unicast+0x750/0x750 [ 42.025113][ T394] ? __lock_release.isra.0+0x69/0x1a0 [ 42.025115][ T394] ? __import_iovec+0x36c/0x620 [ 42.025121][ T394] __sock_sendmsg+0xce/0x190 [ 42.025125][ T394] ____sys_sendmsg+0x61a/0x860 [ 42.025127][ T394] ? copy_msghdr_from_user+0x279/0x420 [ 42.025130][ T394] ? sock_write_iter+0x400/0x400 [ 42.025131][ T394] ? move_addr_to_kernel+0x40/0x40 [ 42.025139][ T394] ___sys_sendmsg+0x14e/0x1d0 [ 42.025141][ T394] ? copy_msghdr_from_user+0x420/0x420 [ 42.025143][ T394] ? kfree+0x22/0x590 [ 42.025158][ T394] __sys_sendmsg+0x12c/0x1d0 [ 42.025161][ T394] ? __sys_sendmsg_sock+0x20/0x20 [ 42.025167][ T394] ? rcu_is_watching+0x16/0xd0 [ 42.025168][ T394] ? rcu_is_watching+0x16/0xd0 [ 42.025171][ T394] do_syscall_64+0xff/0x530 [ 42.025174][ T394] ? exc_page_fault+0xee/0x100 [ 42.025177][ T394] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 42.025179][ T394] RIP: 0033:0x7f2d16dc854e [ 42.025183][ T394] 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 [ 42.025185][ T394] RSP: 002b:00007fff7d191360 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 42.025187][ T394] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2d16dc854e [ 42.025189][ T394] RDX: 0000000000000000 RSI: 00007fff7d191410 RDI: 0000000000000005 [ 42.025189][ T394] RBP: 00007fff7d191370 R08: 0000000000000000 R09: 0000000000000000 [ 42.025190][ T394] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9115a4 [ 42.025191][ T394] R13: 00000000004a1620 R14: 0000000000000000 R15: 0000000000000000 [ 42.025198][ T394] [ 42.094784][ T396] neighbour: arp_cache: neighbor table overflow! [ 42.126679][ T398] neighbour: arp_cache: neighbor table overflow! [ 42.157038][ T400] neighbour: arp_cache: neighbor table overflow! [ 42.193126][ T402] neighbour: arp_cache: neighbor table overflow! [ 42.234437][ T404] neighbour: arp_cache: neighbor table overflow! [ 42.274874][ T406] neighbour: arp_cache: neighbor table overflow! [ 42.311948][ T408] neighbour: arp_cache: neighbor table overflow! [ 42.347723][ T410] neighbour: arp_cache: neighbor table overflow! [ 42.377409][ T412] neighbour: arp_cache: neighbor table overflow! [ 42.497176][ C0] clocksource: Watchdog remote CPU 3 read timed out [ 42.497339][ C0] [ 42.497341][ C0] ======================================================== [ 42.497342][ C0] WARNING: possible irq lock inversion dependency detected [ 42.497344][ C0] 7.2.0-virtme #1 Tainted: G W [ 42.497345][ C0] -------------------------------------------------------- [ 42.497346][ C0] test_neigh.sh/421 just changed the state of lock: [ 42.497347][ C0] ffffffffb949d760 (console_owner){..-.}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 42.497360][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 42.497361][ C0] (fs_reclaim){+.+.}-{0:0} [ 42.497363][ C0] [ 42.497363][ C0] [ 42.497363][ C0] and interrupts could create inverse lock ordering between them. [ 42.497363][ C0] [ 42.497363][ C0] [ 42.497363][ C0] other info that might help us debug this: [ 42.497364][ C0] Possible interrupt unsafe locking scenario: [ 42.497364][ C0] [ 42.497365][ C0] CPU0 CPU1 [ 42.497365][ C0] ---- ---- [ 42.497365][ C0] lock(fs_reclaim); [ 42.497366][ C0] local_irq_disable(); [ 42.497367][ C0] lock(console_owner); [ 42.497368][ C0] lock(fs_reclaim); [ 42.497369][ C0] [ 42.497369][ C0] lock(console_owner); [ 42.497370][ C0] [ 42.497370][ C0] *** DEADLOCK *** [ 42.497370][ C0] [ 42.497370][ C0] locks held by test_neigh.sh/421: 4, last CPU#0: [ 42.497372][ C0] #0: ffa0000000007c90 ((&watchdog_timer)){+.-.}-{0:0}, at: call_timer_fn+0x110/0x4d0 [ 42.497377][ C0] #1: ffffffffb95e29f8 (watchdog_lock){+.-.}-{3:3}, at: clocksource_watchdog+0x15/0x30 [ 42.497381][ C0] #2: ffffffffb957ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 42.497384][ C0] #3: ffffffffb957de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 42.497387][ C0] [ 42.497387][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 42.497391][ C0] -> (fs_reclaim){+.+.}-{0:0} { [ 42.497394][ C0] HARDIRQ-ON-W at: [ 42.497395][ C0] __lock_acquire+0x388/0xc20 [ 42.497399][ C0] lock_acquire.part.0+0xd4/0x280 [ 42.497400][ C0] fs_reclaim_acquire+0xd5/0x120 [ 42.497403][ C0] __kmalloc_cache_noprof+0x6e/0x620 [ 42.497405][ C0] kthread_create_worker_on_node+0xea/0x210 [ 42.497408][ C0] workqueue_init+0x2a/0x680 [ 42.497412][ C0] kernel_init_freeable+0x2fe/0x630 [ 42.497415][ C0] kernel_init+0x21/0x150 [ 42.497419][ C0] ret_from_fork+0x474/0x6b0 [ 42.497422][ C0] ret_from_fork_asm+0x11/0x20 [ 42.497425][ C0] SOFTIRQ-ON-W at: [ 42.497426][ C0] __lock_acquire+0x388/0xc20 [ 42.497428][ C0] lock_acquire.part.0+0xd4/0x280 [ 42.497429][ C0] fs_reclaim_acquire+0xd5/0x120 [ 42.497430][ C0] __kmalloc_cache_noprof+0x6e/0x620 [ 42.497431][ C0] kthread_create_worker_on_node+0xea/0x210 [ 42.497433][ C0] workqueue_init+0x2a/0x680 [ 42.497434][ C0] kernel_init_freeable+0x2fe/0x630 [ 42.497436][ C0] kernel_init+0x21/0x150 [ 42.497437][ C0] ret_from_fork+0x474/0x6b0 [ 42.497438][ C0] ret_from_fork_asm+0x11/0x20 [ 42.497439][ C0] INITIAL USE at: [ 42.497440][ C0] __lock_acquire+0x388/0xc20 [ 42.497442][ C0] lock_acquire.part.0+0xd4/0x280 [ 42.497443][ C0] fs_reclaim_acquire+0xd5/0x120 [ 42.497444][ C0] __kmalloc_cache_noprof+0x6e/0x620 [ 42.497445][ C0] kthread_create_worker_on_node+0xea/0x210 [ 42.497446][ C0] workqueue_init+0x2a/0x680 [ 42.497448][ C0] kernel_init_freeable+0x2fe/0x630 [ 42.497449][ C0] kernel_init+0x21/0x150 [ 42.497451][ C0] ret_from_fork+0x474/0x6b0 [ 42.497452][ C0] ret_from_fork_asm+0x11/0x20 [ 42.497453][ C0] } [ 42.497453][ C0] ... key at: [] __fs_reclaim_map+0x0/0xbe0 [ 42.497457][ C0] ... acquired at: [ 42.497458][ C0] __lock_acquire+0x518/0xc20 [ 42.497460][ C0] lock_acquire.part.0+0xd4/0x280 [ 42.497461][ C0] fs_reclaim_acquire+0xd5/0x120 [ 42.497462][ C0] __kmalloc_noprof+0xd3/0x760 [ 42.497463][ C0] alloc_buf.isra.0+0x4b/0x260 [ 42.497467][ C0] put_chars+0x1e1/0x2f0 [ 42.497468][ C0] hvc_console_print+0x292/0x780 [ 42.497471][ C0] console_emit_next_record+0x22f/0x4c0 [ 42.497473][ C0] console_flush_one_record+0x46f/0x710 [ 42.497474][ C0] console_unlock+0xee/0x1f0 [ 42.497476][ C0] vprintk_emit+0x37c/0x3e0 [ 42.497476][ C0] _printk+0xc7/0x100 [ 42.497479][ C0] tun_init+0x24/0xb0 [ 42.497482][ C0] do_one_initcall+0x124/0x4f0 [ 42.497483][ C0] kernel_init_freeable+0x596/0x630 [ 42.497485][ C0] kernel_init+0x21/0x150 [ 42.497486][ C0] ret_from_fork+0x474/0x6b0 [ 42.497487][ C0] ret_from_fork_asm+0x11/0x20 [ 42.497488][ C0] [ 42.497489][ C0] -> (console_owner){..-.}-{0:0} { [ 42.497491][ C0] IN-SOFTIRQ-W at: [ 42.497491][ C0] __lock_acquire+0x388/0xc20 [ 42.497493][ C0] lock_acquire.part.0+0xd4/0x280 [ 42.497494][ C0] console_lock_spinning_enable+0x5c/0x60 [ 42.497496][ C0] console_emit_next_record+0x1d1/0x4c0 [ 42.497497][ C0] console_flush_one_record+0x46f/0x710 [ 42.497499][ C0] console_unlock+0xee/0x1f0 [ 42.497501][ C0] vprintk_emit+0x37c/0x3e0 [ 42.497501][ C0] _printk+0xc7/0x100 [ 42.497503][ C0] clocksource_watchdog.part.0.cold+0x105/0x1dd [ 42.497505][ C0] call_timer_fn+0x160/0x4d0 [ 42.497507][ C0] __run_timers+0x68f/0xaa0 [ 42.497508][ C0] run_timer_softirq+0xf0/0x160 [ 42.497510][ C0] handle_softirqs+0x1d3/0x900 [ 42.497512][ C0] __irq_exit_rcu+0x145/0x1c0 [ 42.497513][ C0] irq_exit_rcu+0xe/0x30 [ 42.497515][ C0] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 42.497516][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 42.497518][ C0] __rcu_read_lock+0x45/0x70 [ 42.497520][ C0] unwind_next_frame+0x16f/0x1ea0 [ 42.497522][ C0] __unwind_start+0x42e/0x900 [ 42.497523][ C0] arch_stack_walk+0xb3/0x130 [ 42.497525][ C0] stack_trace_save+0x93/0xc0 [ 42.497526][ C0] kasan_save_stack+0x2f/0x50 [ 42.497529][ C0] kasan_record_aux_stack+0x9b/0xc0 [ 42.497531][ C0] __call_rcu_common.constprop.0+0xb2/0xa20 [ 42.497533][ C0] free_percpu.part.0+0x1b/0xc70 [ 42.497535][ C0] __mmdrop+0xbb/0x430 [ 42.497537][ C0] finish_task_switch.isra.0+0x6c4/0xa70 [ 42.497539][ C0] schedule_tail+0x13/0xe0 [ 42.497540][ C0] ret_from_fork+0x71/0x6b0 [ 42.497541][ C0] ret_from_fork_asm+0x11/0x20 [ 42.497543][ C0] INITIAL USE at: [ 42.497544][ C0] } [ 42.497544][ C0] ... key at: [] console_owner_dep_map+0x0/0x60 [ 42.497547][ C0] ... acquired at: [ 42.497547][ C0] mark_lock+0x1d7/0xa00 [ 42.497548][ C0] mark_usage+0x42/0x170 [ 42.497550][ C0] __lock_acquire+0x388/0xc20 [ 42.497551][ C0] lock_acquire.part.0+0xd4/0x280 [ 42.497552][ C0] console_lock_spinning_enable+0x5c/0x60 [ 42.497560][ C0] console_emit_next_record+0x1d1/0x4c0 [ 42.497562][ C0] console_flush_one_record+0x46f/0x710 [ 42.497563][ C0] console_unlock+0xee/0x1f0 [ 42.497565][ C0] vprintk_emit+0x37c/0x3e0 [ 42.497566][ C0] _printk+0xc7/0x100 [ 42.497567][ C0] clocksource_watchdog.part.0.cold+0x105/0x1dd [ 42.497568][ C0] call_timer_fn+0x160/0x4d0 [ 42.497570][ C0] __run_timers+0x68f/0xaa0 [ 42.497571][ C0] run_timer_softirq+0xf0/0x160 [ 42.497573][ C0] handle_softirqs+0x1d3/0x900 [ 42.497574][ C0] __irq_exit_rcu+0x145/0x1c0 [ 42.497575][ C0] irq_exit_rcu+0xe/0x30 [ 42.497576][ C0] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 42.497577][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 42.497578][ C0] __rcu_read_lock+0x45/0x70 [ 42.497579][ C0] unwind_next_frame+0x16f/0x1ea0 [ 42.497580][ C0] __unwind_start+0x42e/0x900 [ 42.497581][ C0] arch_stack_walk+0xb3/0x130 [ 42.497582][ C0] stack_trace_save+0x93/0xc0 [ 42.497583][ C0] kasan_save_stack+0x2f/0x50 [ 42.497584][ C0] kasan_record_aux_stack+0x9b/0xc0 [ 42.497586][ C0] __call_rcu_common.constprop.0+0xb2/0xa20 [ 42.497587][ C0] free_percpu.part.0+0x1b/0xc70 [ 42.497588][ C0] __mmdrop+0xbb/0x430 [ 42.497589][ C0] finish_task_switch.isra.0+0x6c4/0xa70 [ 42.497590][ C0] schedule_tail+0x13/0xe0 [ 42.497591][ C0] ret_from_fork+0x71/0x6b0 [ 42.497592][ C0] ret_from_fork_asm+0x11/0x20 [ 42.497593][ C0] [ 42.497594][ C0] [ 42.497594][ C0] stack backtrace: [ 42.497597][ C0] CPU: 0 UID: 0 PID: 421 Comm: test_neigh.sh Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 42.497600][ C0] Tainted: [W]=WARN [ 42.497601][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 42.497602][ C0] Call Trace: [ 42.497604][ C0] [ 42.497605][ C0] dump_stack_lvl+0x6f/0xa0 [ 42.497610][ C0] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 42.497612][ C0] mark_lock_irq+0x989/0x9c0 [ 42.497614][ C0] ? add_lock_to_list+0x2c/0x1a0 [ 42.497617][ C0] mark_lock+0x1d7/0xa00 [ 42.497619][ C0] mark_usage+0x42/0x170 [ 42.497620][ C0] __lock_acquire+0x388/0xc20 [ 42.497623][ C0] lock_acquire.part.0+0xd4/0x280 [ 42.497624][ C0] ? console_lock_spinning_enable+0x40/0x60 [ 42.497626][ C0] ? rcu_is_watching+0x16/0xd0 [ 42.497628][ C0] ? lock_acquire+0x13c/0x160 [ 42.497630][ C0] console_lock_spinning_enable+0x5c/0x60 [ 42.497632][ C0] ? console_lock_spinning_enable+0x40/0x60 [ 42.497633][ C0] console_emit_next_record+0x1d1/0x4c0 [ 42.497636][ C0] ? devkmsg_read+0x4b0/0x4b0 [ 42.497637][ C0] ? console_flush_one_record+0x106/0x710 [ 42.497640][ C0] ? rcu_is_watching+0x16/0xd0 [ 42.497641][ C0] ? lock_acquire+0x13c/0x160 [ 42.497643][ C0] console_flush_one_record+0x46f/0x710 [ 42.497645][ C0] ? console_emit_next_record+0x4c0/0x4c0 [ 42.497647][ C0] ? __lock_acquire+0x518/0xc20 [ 42.497649][ C0] console_unlock+0xee/0x1f0 [ 42.497651][ C0] ? console_flush_one_record+0x710/0x710 [ 42.497653][ C0] ? rcu_is_watching+0x16/0xd0 [ 42.497654][ C0] ? lock_acquire+0xe0/0x160 [ 42.497656][ C0] ? __down_trylock_console_sem+0x5e/0xa0 [ 42.497658][ C0] ? vprintk_emit+0x320/0x3e0 [ 42.497659][ C0] vprintk_emit+0x37c/0x3e0 [ 42.497661][ C0] ? wake_up_klogd_work_func+0x90/0x90 [ 42.497662][ C0] ? clocksource_watchdog.part.0+0x450/0x540 [ 42.497664][ C0] _printk+0xc7/0x100 [ 42.497666][ C0] ? snapshot_read.cold+0x21/0x21 [ 42.497668][ C0] ? clocksource_watchdog.part.0+0x450/0x540 [ 42.497670][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 42.497672][ C0] clocksource_watchdog.part.0.cold+0x105/0x1dd [ 42.497673][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 42.497675][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 42.497677][ C0] call_timer_fn+0x160/0x4d0 [ 42.497679][ C0] ? detach_if_pending+0x1d0/0x1d0 [ 42.497680][ C0] ? debug_object_active_state+0x430/0x430 [ 42.497683][ C0] ? find_held_lock+0x2b/0x80 [ 42.497685][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 42.497687][ C0] ? rcu_is_watching+0x16/0xd0 [ 42.497688][ C0] __run_timers+0x68f/0xaa0 [ 42.497690][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 42.497692][ C0] ? __bpf_trace_itimer_expire+0x10/0x10 [ 42.497694][ C0] ? __lock_acquire+0x518/0xc20 [ 42.497697][ C0] ? __rwlock_init+0x150/0x150 [ 42.497700][ C0] run_timer_softirq+0xf0/0x160 [ 42.497702][ C0] ? __run_timers+0xaa0/0xaa0 [ 42.497704][ C0] ? handle_softirqs+0x19c/0x900 [ 42.497705][ C0] ? rcu_is_watching+0x16/0xd0 [ 42.497706][ C0] handle_softirqs+0x1d3/0x900 [ 42.497708][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 42.497710][ C0] ? _local_bh_enable+0xc0/0xc0 [ 42.497712][ C0] __irq_exit_rcu+0x145/0x1c0 [ 42.497713][ C0] irq_exit_rcu+0xe/0x30 [ 42.497715][ C0] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 42.497716][ C0] [ 42.497717][ C0] [ 42.497718][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 42.497719][ C0] RIP: 0010:__rcu_read_lock+0x45/0x70 [ 42.497722][ C0] Code: 48 8d b8 84 04 00 00 48 89 f9 48 c1 e9 03 0f b6 0c 11 48 89 fa 83 e2 07 83 c2 03 38 ca 7c 04 84 c9 75 19 83 80 84 04 00 00 01 <81> b8 84 04 00 00 ff ff ff 3f 7f 01 c3 90 0f 0b 90 c3 e8 54 d0 7e [ 42.497724][ C0] RSP: 0018:ffa0000001a57898 EFLAGS: 00000202 [ 42.497726][ C0] RAX: ff1100001066a3c0 RBX: 1ff400000034af1d RCX: 0000000000000000 [ 42.497727][ C0] RDX: 0000000000000007 RSI: ff1100001066a3c0 RDI: ff1100001066a844 [ 42.497728][ C0] RBP: 0000000000000001 R08: ffa0000001a57a18 R09: ffa0000001a579f0 [ 42.497729][ C0] R10: fff3fc000034af4c R11: fff3fc000034af4c R12: ffa0000001a57a48 [ 42.497729][ C0] R13: ffa0000001a579f0 R14: ffa0000001a57a38 R15: ffa0000001a579f0 [ 42.497732][ C0] unwind_next_frame+0x16f/0x1ea0 [ 42.497733][ C0] ? __unwind_start+0x357/0x900 [ 42.497735][ C0] ? stack_access_ok+0x1e0/0x1e0 [ 42.497737][ C0] ? get_stack_info_noinstr+0x1a/0x120 [ 42.497739][ C0] __unwind_start+0x42e/0x900 [ 42.497740][ C0] ? write_profile+0xf0/0xf0 [ 42.497742][ C0] arch_stack_walk+0xb3/0x130 [ 42.497744][ C0] ? __unwind_start+0x357/0x900 [ 42.497746][ C0] stack_trace_save+0x93/0xc0 [ 42.497747][ C0] ? filter_irq_stacks+0xd0/0xd0 [ 42.497749][ C0] kasan_save_stack+0x2f/0x50 [ 42.497754][ C0] kasan_record_aux_stack+0x9b/0xc0 [ 42.497756][ C0] ? __remove_object+0x90/0x90 [ 42.497758][ C0] __call_rcu_common.constprop.0+0xb2/0xa20 [ 42.497759][ C0] ? lockdep_hardirqs_on+0x91/0x130 [ 42.497761][ C0] ? _raw_spin_unlock_irqrestore+0x53/0x80 [ 42.497763][ C0] ? _raw_spin_unlock_irqrestore+0x40/0x80 [ 42.497765][ C0] free_percpu.part.0+0x1b/0xc70 [ 42.497767][ C0] __mmdrop+0xbb/0x430 [ 42.497768][ C0] ? rcu_is_watching+0x16/0xd0 [ 42.497770][ C0] finish_task_switch.isra.0+0x6c4/0xa70 [ 42.497772][ C0] schedule_tail+0x13/0xe0 [ 42.497773][ C0] ret_from_fork+0x71/0x6b0 [ 42.497775][ C0] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 42.497777][ C0] ? __switch_to+0x5a3/0xe00 [ 42.497780][ C0] ret_from_fork_asm+0x11/0x20 [ 42.497783][ C0] [ 101.687627][ T715] neighbour: ndisc_cache: neighbor table overflow! [ 101.687645][ T715] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 101.687647][ T715] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 715, name: ip [ 101.687649][ T715] preempt_count: 1, expected: 0 [ 101.687650][ T715] RCU nest depth: 0, expected: 0 [ 101.687650][ T715] INFO: lockdep is turned off. [ 101.687652][ T715] irq event stamp: 0 [ 101.687652][ T715] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 101.687657][ T715] hardirqs last disabled at (0): [] copy_process+0x1d3b/0x62b0 [ 101.687663][ T715] softirqs last enabled at (0): [] copy_process+0x1d8f/0x62b0 [ 101.687665][ T715] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 101.687667][ T715] Preemption disabled at: [ 101.687667][ T715] [] vprintk_emit+0x31b/0x3e0 [ 101.687674][ T715] CPU: 3 UID: 0 PID: 715 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 101.687678][ T715] Tainted: [W]=WARN [ 101.687679][ T715] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 101.687680][ T715] Call Trace: [ 101.687682][ T715] [ 101.687683][ T715] dump_stack_lvl+0x6f/0xa0 [ 101.687689][ T715] ? vprintk_emit+0x31b/0x3e0 [ 101.687690][ T715] __might_resched.cold+0x1fe/0x2c1 [ 101.687694][ T715] ? prb_next_reserve_seq+0x2d0/0x2d0 [ 101.687696][ T715] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 101.687699][ T715] ? rcu_is_watching+0x16/0xd0 [ 101.687702][ T715] __kmalloc_noprof+0x443/0x760 [ 101.687705][ T715] ? __rwlock_init+0x150/0x150 [ 101.687708][ T715] ? alloc_buf.isra.0+0x4b/0x260 [ 101.687713][ T715] ? do_raw_spin_unlock+0x59/0x250 [ 101.687715][ T715] alloc_buf.isra.0+0x4b/0x260 [ 101.687717][ T715] put_chars+0x1e1/0x2f0 [ 101.687719][ T715] ? __send_to_port+0x420/0x420 [ 101.687721][ T715] ? console_prepend_replay+0x20/0x20 [ 101.687723][ T715] hvc_console_print+0x292/0x780 [ 101.687728][ T715] ? hvc_write+0x3a0/0x3a0 [ 101.687730][ T715] ? vsnprintf+0x668/0x1700 [ 101.687733][ T715] ? __rwlock_init+0x150/0x150 [ 101.687734][ T715] ? rcu_is_watching+0x16/0xd0 [ 101.687735][ T715] ? rcu_is_watching+0x16/0xd0 [ 101.687737][ T715] console_emit_next_record+0x22f/0x4c0 [ 101.687740][ T715] ? devkmsg_read+0x4b0/0x4b0 [ 101.687742][ T715] ? rcu_is_watching+0x16/0xd0 [ 101.687743][ T715] ? rcu_is_watching+0x16/0xd0 [ 101.687744][ T715] ? rcu_is_watching+0x16/0xd0 [ 101.687745][ T715] ? lock_acquire+0x13c/0x160 [ 101.687747][ T715] ? console_flush_one_record+0x111/0x710 [ 101.687749][ T715] console_flush_one_record+0x46f/0x710 [ 101.687752][ T715] ? console_emit_next_record+0x4c0/0x4c0 [ 101.687754][ T715] console_unlock+0xee/0x1f0 [ 101.687756][ T715] ? lock_acquire+0x13c/0x160 [ 101.687758][ T715] ? console_flush_one_record+0x710/0x710 [ 101.687759][ T715] ? rcu_is_watching+0x16/0xd0 [ 101.687760][ T715] ? lock_release+0x184/0x1f0 [ 101.687762][ T715] ? lock_acquire+0xe0/0x160 [ 101.687763][ T715] ? __rcu_read_lock+0x70/0x70 [ 101.687765][ T715] ? __down_trylock_console_sem+0x5e/0xa0 [ 101.687767][ T715] ? vprintk_emit+0x320/0x3e0 [ 101.687768][ T715] vprintk_emit+0x37c/0x3e0 [ 101.687770][ T715] ? wake_up_klogd_work_func+0x90/0x90 [ 101.687771][ T715] ? do_raw_spin_trylock+0xb6/0x180 [ 101.687773][ T715] ? rcu_is_watching+0x16/0xd0 [ 101.687774][ T715] ? lock_acquire+0x13c/0x160 [ 101.687776][ T715] _printk+0xc7/0x100 [ 101.687779][ T715] ? snapshot_read.cold+0x21/0x21 [ 101.687780][ T715] ? ___ratelimit+0x4e7/0xa00 [ 101.687783][ T715] ? write_profile+0xf0/0xf0 [ 101.687786][ T715] ? idr_get_free+0x830/0x830 [ 101.687792][ T715] ? rcu_is_watching+0x16/0xd0 [ 101.687794][ T715] ? trace_irq_enable.constprop.0+0x30/0x160 [ 101.687797][ T715] neigh_alloc.cold+0x2a/0x36 [ 101.687801][ T715] ___neigh_create+0x63/0x1070 [ 101.687805][ T715] ? __nla_validate_parse+0x180/0x480 [ 101.687809][ T715] neigh_add+0x7eb/0xf10 [ 101.687811][ T715] ? __mutex_lock+0x980/0x1ea0 [ 101.687813][ T715] ? rtnetlink_rcv_msg+0x2b0/0xbd0 [ 101.687815][ T715] ? pneigh_create+0x4a0/0x4a0 [ 101.687817][ T715] ? rcu_is_watching+0x16/0xd0 [ 101.687819][ T715] ? cap_capable+0x1d7/0x3d0 [ 101.687823][ T715] ? arch_stack_walk+0xed/0x130 [ 101.687825][ T715] ? rcu_is_watching+0x16/0xd0 [ 101.687827][ T715] rtnetlink_rcv_msg+0x2f8/0xbd0 [ 101.687829][ T715] ? rtnl_link_fill+0x920/0x920 [ 101.687830][ T715] ? filter_irq_stacks+0xd0/0xd0 [ 101.687832][ T715] ? stack_depot_save_flags+0x1bc/0x790 [ 101.687834][ T715] netlink_rcv_skb+0x14e/0x3a0 [ 101.687837][ T715] ? rtnl_link_fill+0x920/0x920 [ 101.687838][ T715] ? lock_release+0x184/0x1f0 [ 101.687840][ T715] ? netlink_ack+0xcf0/0xcf0 [ 101.687842][ T715] ? __netlink_lookup+0xb9/0x6b0 [ 101.687844][ T715] ? rcu_is_watching+0x16/0xd0 [ 101.687846][ T715] ? lock_release+0x184/0x1f0 [ 101.687848][ T715] netlink_unicast+0x486/0x750 [ 101.687850][ T715] ? netlink_attachskb+0x810/0x810 [ 101.687851][ T715] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 101.687853][ T715] ? trace_hardirqs_on+0x36/0x40 [ 101.687854][ T715] ? _raw_spin_unlock_irqrestore+0x40/0x80 [ 101.687857][ T715] netlink_sendmsg+0x75b/0xc90 [ 101.687859][ T715] ? netlink_unicast+0x750/0x750 [ 101.687861][ T715] ? lock_acquire+0x13c/0x160 [ 101.687863][ T715] ? __import_iovec+0x36c/0x620 [ 101.687866][ T715] __sock_sendmsg+0xce/0x190 [ 101.687869][ T715] ____sys_sendmsg+0x61a/0x860 [ 101.687871][ T715] ? copy_msghdr_from_user+0x279/0x420 [ 101.687872][ T715] ? sock_write_iter+0x400/0x400 [ 101.687874][ T715] ? move_addr_to_kernel+0x40/0x40 [ 101.687877][ T715] ___sys_sendmsg+0x14e/0x1d0 [ 101.687879][ T715] ? copy_msghdr_from_user+0x420/0x420 [ 101.687880][ T715] ? kfree+0x22/0x590 [ 101.687884][ T715] __sys_sendmsg+0x12c/0x1d0 [ 101.687887][ T715] ? __sys_sendmsg_sock+0x20/0x20 [ 101.687889][ T715] ? rcu_is_watching+0x16/0xd0 [ 101.687890][ T715] ? rcu_is_watching+0x16/0xd0 [ 101.687892][ T715] do_syscall_64+0xff/0x530 [ 101.687894][ T715] ? exc_page_fault+0xee/0x100 [ 101.687896][ T715] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 101.687898][ T715] RIP: 0033:0x7f7b72f1754e [ 101.687901][ T715] 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 [ 101.687902][ T715] RSP: 002b:00007fffae876690 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 101.687906][ T715] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7b72f1754e [ 101.687907][ T715] RDX: 0000000000000000 RSI: 00007fffae876740 RDI: 0000000000000005 [ 101.687908][ T715] RBP: 00007fffae8766a0 R08: 0000000000000000 R09: 0000000000000000 [ 101.687909][ T715] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9115e0 [ 101.687910][ T715] R13: 00000000004a1620 R14: 0000000000000000 R15: 0000000000000000 [ 101.687912][ T715] [ 101.727331][ T717] neighbour: ndisc_cache: neighbor table overflow! [ 101.745566][ T719] neighbour: ndisc_cache: neighbor table overflow! [ 101.767696][ T721] neighbour: ndisc_cache: neighbor table overflow! [ 101.788194][ T723] neighbour: ndisc_cache: neighbor table overflow! [ 101.813595][ T725] neighbour: ndisc_cache: neighbor table overflow! [ 101.833905][ T727] neighbour: ndisc_cache: neighbor table overflow! [ 101.854685][ T729] neighbour: ndisc_cache: neighbor table overflow! [ 101.884675][ T731] neighbour: ndisc_cache: neighbor table overflow! [ 101.903369][ T733] neighbour: ndisc_cache: neighbor table overflow!