[ 10.909387][ T216] veth0: renamed from veth1 [ 10.909476][ T216] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.909479][ T216] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 216, name: ip [ 10.909481][ T216] preempt_count: 1, expected: 0 [ 10.909481][ T216] RCU nest depth: 0, expected: 0 [ 10.909483][ T216] locks held by ip/216: 5, last CPU#2: [ 10.909485][ T216] #0: ffffffff9831b740 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x9a8/0x11b0 [ 10.909499][ T216] #1: ffffffff97b7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.909504][ T216] #2: ffffffff97b7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.909508][ T216] #3: ffffffff97a9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.909512][ T216] #4: ffffffff97a9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.909516][ T216] irq event stamp: 20080 [ 10.909517][ T216] hardirqs last enabled at (20079): [] __down_trylock_console_sem+0x86/0xa0 [ 10.909520][ T216] hardirqs last disabled at (20080): [] console_emit_next_record+0x3d4/0x4c0 [ 10.909522][ T216] softirqs last enabled at (20074): [] netif_change_name+0x216/0x8c0 [ 10.909526][ T216] softirqs last disabled at (20072): [] netif_change_name+0x1ad/0x8c0 [ 10.909528][ T216] Preemption disabled at: [ 10.909529][ T216] [] vprintk_emit+0x31b/0x3e0 [ 10.909534][ T216] CPU: 2 UID: 0 PID: 216 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.909538][ T216] Tainted: [W]=WARN [ 10.909539][ T216] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.909541][ T216] Call Trace: [ 10.909542][ T216] [ 10.909544][ T216] dump_stack_lvl+0x6f/0xa0 [ 10.909550][ T216] ? vprintk_emit+0x31b/0x3e0 [ 10.909552][ T216] __might_resched.cold+0x1fe/0x2c1 [ 10.909556][ T216] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.909561][ T216] ? __kmalloc_noprof+0xdb/0x760 [ 10.909565][ T216] __kmalloc_noprof+0x443/0x760 [ 10.909567][ T216] ? alloc_buf.isra.0+0x4b/0x260 [ 10.909574][ T216] ? do_raw_spin_unlock+0x59/0x250 [ 10.909577][ T216] alloc_buf.isra.0+0x4b/0x260 [ 10.909580][ T216] put_chars+0x1e1/0x2f0 [ 10.909583][ T216] ? __send_to_port+0x420/0x420 [ 10.909590][ T216] hvc_console_print+0x292/0x780 [ 10.909598][ T216] ? hvc_write+0x3a0/0x3a0 [ 10.909601][ T216] ? lock_acquire+0x13c/0x160 [ 10.909605][ T216] console_emit_next_record+0x22f/0x4c0 [ 10.909609][ T216] ? devkmsg_read+0x4b0/0x4b0 [ 10.909611][ T216] ? console_flush_one_record+0x106/0x710 [ 10.909614][ T216] ? rcu_is_watching+0x16/0xd0 [ 10.909617][ T216] ? lock_acquire+0x13c/0x160 [ 10.909621][ T216] console_flush_one_record+0x46f/0x710 [ 10.909626][ T216] ? console_emit_next_record+0x4c0/0x4c0 [ 10.909627][ T216] ? __lock_acquire+0x518/0xc20 [ 10.909633][ T216] console_unlock+0xee/0x1f0 [ 10.909636][ T216] ? console_flush_one_record+0x710/0x710 [ 10.909638][ T216] ? rcu_is_watching+0x16/0xd0 [ 10.909640][ T216] ? lock_acquire+0xe0/0x160 [ 10.909643][ T216] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.909645][ T216] ? vprintk_emit+0x320/0x3e0 [ 10.909648][ T216] vprintk_emit+0x37c/0x3e0 [ 10.909651][ T216] ? wake_up_klogd_work_func+0x90/0x90 [ 10.909654][ T216] ? save_trace+0x68/0x280 [ 10.909658][ T216] _printk+0xc7/0x100 [ 10.909662][ T216] ? snapshot_read.cold+0x21/0x21 [ 10.909665][ T216] ? validate_chain+0x34a/0xc20 [ 10.909668][ T216] ? netdev_name+0x43/0x60 [ 10.909672][ T216] ? __netdev_printk+0x17f/0x1d0 [ 10.909675][ T216] ? do_setlink.isra.0+0x1f7d/0x2a60 [ 10.909677][ T216] netdev_info+0xe2/0x116 [ 10.909680][ T216] ? netdev_notice+0x120/0x120 [ 10.909682][ T216] ? find_held_lock+0x2b/0x80 [ 10.909686][ T216] ? __lock_release.isra.0+0x69/0x1a0 [ 10.909688][ T216] ? mark_held_locks+0x40/0x70 [ 10.909692][ T216] ? do_setlink.isra.0+0x1f7d/0x2a60 [ 10.909694][ T216] netif_change_name.cold+0x4f/0x89 [ 10.909696][ T216] ? is_bpf_text_address+0x68/0x110 [ 10.909702][ T216] ? netdev_adjacent_rename_links+0x470/0x470 [ 10.909705][ T216] ? __kernel_text_address+0x12/0x30 [ 10.909707][ T216] ? write_profile+0xf0/0xf0 [ 10.909711][ T216] ? __asan_memset+0x27/0x50 [ 10.909717][ T216] do_setlink.isra.0+0x1f7d/0x2a60 [ 10.909721][ T216] ? stack_trace_save+0x93/0xc0 [ 10.909723][ T216] ? rtnl_link_get_size+0x350/0x350 [ 10.909724][ T216] ? rcu_read_lock_any_held+0x66/0x90 [ 10.909727][ T216] ? stack_depot_save_flags+0x38e/0x790 [ 10.909731][ T216] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.909733][ T216] ? rcu_read_lock_any_held+0x3c/0x90 [ 10.909735][ T216] ? validate_chain+0x38b/0xc20 [ 10.909737][ T216] ? kasan_save_stack+0x3d/0x50 [ 10.909739][ T216] ? kasan_save_stack+0x2f/0x50 [ 10.909741][ T216] ? kasan_save_track+0x14/0x30 [ 10.909742][ T216] ? __kasan_kmalloc+0x7b/0x90 [ 10.909744][ T216] ? __lock_acquire+0x518/0xc20 [ 10.909746][ T216] ? snd_ac97_proc_read_main+0x4de/0x1f00 [ 10.909749][ T216] ? ___sys_sendmsg+0xd0/0x1d0 [ 10.909753][ T216] ? lock_acquire.part.0+0xd4/0x280 [ 10.909755][ T216] ? rtnl_newlink+0x9a8/0x11b0 [ 10.909758][ T216] ? rcu_is_watching+0x16/0xd0 [ 10.909760][ T216] ? lock_acquire+0x13c/0x160 [ 10.909761][ T216] ? rcu_is_watching+0x16/0xd0 [ 10.909762][ T216] ? rcu_is_watching+0x16/0xd0 [ 10.909764][ T216] ? trace_contention_end+0xb3/0x180 [ 10.909766][ T216] ? __mutex_lock+0x1db/0x1ea0 [ 10.909769][ T216] ? __mutex_lock+0x9a3/0x1ea0 [ 10.909771][ T216] ? rtnl_newlink+0x9a8/0x11b0 [ 10.909774][ T216] ? ww_mutex_lock+0x160/0x160 [ 10.909776][ T216] ? nla_get_range_signed+0x3d0/0x3d0 [ 10.909781][ T216] ? rcu_is_watching+0x16/0xd0 [ 10.909783][ T216] ? __rtnl_newlink+0x3fa/0xa50 [ 10.909788][ T216] rtnl_newlink+0x9f1/0x11b0 [ 10.909794][ T216] ? rtnl_bridge_getlink+0x850/0x850 [ 10.909796][ T216] ? __lock_acquire+0x518/0xc20 [ 10.909800][ T216] ? lock_acquire.part.0+0xd4/0x280 [ 10.909802][ T216] ? find_held_lock+0x2b/0x80 [ 10.909804][ T216] ? rtnl_bridge_getlink+0x850/0x850 [ 10.909806][ T216] ? __lock_release.isra.0+0x69/0x1a0 [ 10.909810][ T216] ? rtnl_bridge_getlink+0x850/0x850 [ 10.909812][ T216] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 10.909815][ T216] ? rtnl_link_fill+0x920/0x920 [ 10.909816][ T216] ? __lock_acquire+0x518/0xc20 [ 10.909821][ T216] ? lock_acquire.part.0+0xd4/0x280 [ 10.909823][ T216] ? find_held_lock+0x2b/0x80 [ 10.909827][ T216] netlink_rcv_skb+0x14e/0x3a0 [ 10.909830][ T216] ? rtnl_link_fill+0x920/0x920 [ 10.909833][ T216] ? netlink_ack+0xcf0/0xcf0 [ 10.909839][ T216] ? netlink_deliver_tap+0xc5/0x330 [ 10.909842][ T216] ? netlink_deliver_tap+0x13c/0x330 [ 10.909846][ T216] netlink_unicast+0x486/0x750 [ 10.909850][ T216] ? netlink_attachskb+0x810/0x810 [ 10.909853][ T216] ? find_held_lock+0x2b/0x80 [ 10.909857][ T216] netlink_sendmsg+0x75b/0xc90 [ 10.909861][ T216] ? netlink_unicast+0x750/0x750 [ 10.909865][ T216] ? __lock_release.isra.0+0x69/0x1a0 [ 10.909867][ T216] ? __import_iovec+0x36c/0x620 [ 10.909872][ T216] __sock_sendmsg+0xce/0x190 [ 10.909875][ T216] ____sys_sendmsg+0x61a/0x860 [ 10.909877][ T216] ? copy_msghdr_from_user+0x279/0x420 [ 10.909880][ T216] ? sock_write_iter+0x400/0x400 [ 10.909881][ T216] ? move_addr_to_kernel+0x40/0x40 [ 10.909889][ T216] ___sys_sendmsg+0x14e/0x1d0 [ 10.909892][ T216] ? copy_msghdr_from_user+0x420/0x420 [ 10.909908][ T216] __sys_sendmsg+0x12c/0x1d0 [ 10.909911][ T216] ? __sys_sendmsg_sock+0x20/0x20 [ 10.909918][ T216] ? rcu_is_watching+0x16/0xd0 [ 10.909921][ T216] do_syscall_64+0xff/0x530 [ 10.909924][ T216] ? exc_page_fault+0xee/0x100 [ 10.909927][ T216] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.909929][ T216] RIP: 0033:0x7f9a2257d54e [ 10.909933][ T216] 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 [ 10.909935][ T216] RSP: 002b:00007ffd65639a40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 10.909937][ T216] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9a2257d54e [ 10.909939][ T216] RDX: 0000000000000000 RSI: 00007ffd65639af0 RDI: 0000000000000005 [ 10.909940][ T216] RBP: 00007ffd65639a50 R08: 0000000000000000 R09: 0000000000000000 [ 10.909941][ T216] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9135e6 [ 10.909942][ T216] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd6563a1c0 [ 10.909949][ T216] [ 10.967583][ T216] ip (216) used greatest stack depth: 23208 bytes left [ 11.285581][ T245] gre: GRE over IPv4 demultiplexer driver [ 11.302859][ T245] ip6_gre: GRE over IPv6 tunneling driver [ 11.379758][ T12] ip6_tunnel: gre1 xmit: Local address not yet configured! [ 11.379813][ T12] [ 11.379814][ T12] ============================= [ 11.379815][ T12] WARNING: suspicious RCU usage [ 11.379817][ T12] 7.2.0-virtme #1 Tainted: G W [ 11.379818][ T12] ----------------------------- [ 11.379819][ T12] kernel/sched/core.c:9196 Illegal context switch in RCU-bh read-side critical section! [ 11.379821][ T12] [ 11.379821][ T12] other info that might help us debug this: [ 11.379821][ T12] [ 11.379821][ T12] [ 11.379821][ T12] rcu_scheduler_active = 2, debug_locks = 1 [ 11.379822][ T12] locks held by kworker/u16:0/12: 11, last CPU#1: [ 11.379824][ T12] #0: ff1100000932e540 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0xd9a/0x1560 [ 11.379836][ T12] #1: ffa00000000c7d10 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0xdfc/0x1560 [ 11.379840][ T12] #2: ffffffff9831b740 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x11a/0x930 [ 11.379845][ T12] #3: ffffffff97b94c00 (rcu_read_lock){....}-{1:3}, at: ndisc_send_skb+0x175/0x1520 [ 11.379850][ T12] #4: ffffffff97b94c00 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x11d/0x7f0 [ 11.379854][ T12] #5: ffffffff97b94ba0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x204/0x1b90 [ 11.379859][ T12] #6: ffffffff97b94c00 (rcu_read_lock){....}-{1:3}, at: ip6_tnl_xmit_ctl+0xfd/0x390 [ 11.379864][ T12] #7: ffffffff97b7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.379868][ T12] #8: ffffffff97b7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.379871][ T12] #9: ffffffff97a9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.379875][ T12] #10: ffffffff97a9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.379878][ T12] [ 11.379878][ T12] stack backtrace: [ 11.379881][ T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.379884][ T12] Tainted: [W]=WARN [ 11.379885][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.379887][ T12] Workqueue: ipv6_addrconf addrconf_dad_work [ 11.379890][ T12] Call Trace: [ 11.379891][ T12] [ 11.379893][ T12] dump_stack_lvl+0x6f/0xa0 [ 11.379900][ T12] lockdep_rcu_suspicious.cold+0x37/0x8a [ 11.379905][ T12] __might_resched+0x2ac/0x390 [ 11.379909][ T12] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.379912][ T12] ? __kmalloc_noprof+0xdb/0x760 [ 11.379916][ T12] __kmalloc_noprof+0x443/0x760 [ 11.379918][ T12] ? alloc_buf.isra.0+0x4b/0x260 [ 11.379925][ T12] ? do_raw_spin_unlock+0x59/0x250 [ 11.379928][ T12] alloc_buf.isra.0+0x4b/0x260 [ 11.379932][ T12] put_chars+0x1e1/0x2f0 [ 11.379934][ T12] ? __send_to_port+0x420/0x420 [ 11.379941][ T12] hvc_console_print+0x292/0x780 [ 11.379949][ T12] ? hvc_write+0x3a0/0x3a0 [ 11.379952][ T12] ? lock_acquire+0x13c/0x160 [ 11.379957][ T12] console_emit_next_record+0x22f/0x4c0 [ 11.379961][ T12] ? devkmsg_read+0x4b0/0x4b0 [ 11.379963][ T12] ? console_flush_one_record+0x106/0x710 [ 11.379966][ T12] ? rcu_is_watching+0x16/0xd0 [ 11.379969][ T12] ? lock_acquire+0x13c/0x160 [ 11.379973][ T12] console_flush_one_record+0x46f/0x710 [ 11.379977][ T12] ? console_emit_next_record+0x4c0/0x4c0 [ 11.379979][ T12] ? __lock_acquire+0x518/0xc20 [ 11.379984][ T12] console_unlock+0xee/0x1f0 [ 11.379987][ T12] ? console_flush_one_record+0x710/0x710 [ 11.379989][ T12] ? rcu_is_watching+0x16/0xd0 [ 11.379991][ T12] ? lock_acquire+0xe0/0x160 [ 11.379995][ T12] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.379997][ T12] ? vprintk_emit+0x320/0x3e0 [ 11.379999][ T12] vprintk_emit+0x37c/0x3e0 [ 11.380003][ T12] ? wake_up_klogd_work_func+0x90/0x90 [ 11.380005][ T12] ? __lock_release.isra.0+0x69/0x1a0 [ 11.380010][ T12] _printk+0xc7/0x100 [ 11.380013][ T12] ? snapshot_read.cold+0x21/0x21 [ 11.380015][ T12] ? ___ratelimit+0x4e7/0xa00 [ 11.380021][ T12] ? idr_get_free+0x830/0x830 [ 11.380025][ T12] ip6_tnl_xmit_ctl.cold+0x75/0x7a [ 11.380030][ T12] ip6gre_tunnel_xmit+0x1f5/0xdd0 [ip6_gre] [ 11.380036][ T12] ? __gre6_xmit+0x19a0/0x19a0 [ip6_gre] [ 11.380039][ T12] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.380041][ T12] ? rcu_read_lock_any_held+0x3c/0x90 [ 11.380044][ T12] ? validate_chain+0x38b/0xc20 [ 11.380047][ T12] ? netif_skb_features+0x662/0x14e0 [ 11.380049][ T12] ? __lock_acquire+0x518/0xc20 [ 11.380052][ T12] ? skb_network_protocol+0x3b0/0x3b0 [ 11.380057][ T12] dev_hard_start_xmit+0xf4/0x620 [ 11.380061][ T12] ? validate_xmit_skb+0x72/0x9a0 [ 11.380064][ T12] __dev_queue_xmit+0xc1a/0x1b90 [ 11.380068][ T12] ? __lock_acquire+0x518/0xc20 [ 11.380070][ T12] ? do_ipv6_getsockopt+0xb5/0x2e80 [ 11.380074][ T12] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 11.380076][ T12] ? find_held_lock+0x2b/0x80 [ 11.380079][ T12] ? __lock_release.isra.0+0x69/0x1a0 [ 11.380081][ T12] ? __rwlock_init+0x150/0x150 [ 11.380084][ T12] ? mark_held_locks+0x40/0x70 [ 11.380087][ T12] ? lockdep_hardirqs_on+0x91/0x130 [ 11.380089][ T12] ? __local_bh_enable_ip+0xaa/0x150 [ 11.380092][ T12] ? __local_bh_enable_ip+0xaa/0x150 [ 11.380094][ T12] ? ___neigh_create+0x811/0x1070 [ 11.380100][ T12] ip6_finish_output2+0x48d/0x13f0 [ 11.380106][ T12] ? ip6_dst_lookup+0x80/0x80 [ 11.380108][ T12] ? find_held_lock+0x2b/0x80 [ 11.380110][ T12] ? __lock_release.isra.0+0x69/0x1a0 [ 11.380113][ T12] ? ip6_mtu+0x174/0x410 [ 11.380118][ T12] ip6_finish_output+0x701/0xe80 [ 11.380122][ T12] ip6_output+0x23f/0x7f0 [ 11.380126][ T12] ? ip6_finish_output+0xe80/0xe80 [ 11.380128][ T12] ? lock_acquire.part.0+0xd4/0x280 [ 11.380130][ T12] ? find_held_lock+0x2b/0x80 [ 11.380133][ T12] ? __lock_release.isra.0+0x69/0x1a0 [ 11.380135][ T12] ? __local_bh_enable_ip+0xaa/0x150 [ 11.380139][ T12] ndisc_send_skb+0xba3/0x1520 [ 11.380144][ T12] ? ndisc_recv_na+0xea0/0xea0 [ 11.380150][ T12] ? __asan_memset+0x27/0x50 [ 11.380156][ T12] addrconf_dad_completed+0x37e/0xe10 [ 11.380159][ T12] ? lock_acquire.part.0+0xd4/0x280 [ 11.380162][ T12] ? addrconf_rs_timer+0x770/0x770 [ 11.380164][ T12] ? __lock_release.isra.0+0x69/0x1a0 [ 11.380166][ T12] ? __rwlock_init+0x150/0x150 [ 11.380168][ T12] ? mark_held_locks+0x40/0x70 [ 11.380172][ T12] ? addrconf_dad_begin+0x2e1/0x540 [ 11.380173][ T12] addrconf_dad_begin+0x2e1/0x540 [ 11.380175][ T12] ? lock_acquire.part.0+0xd4/0x280 [ 11.380178][ T12] ? addrconf_dad_completed+0xe10/0xe10 [ 11.380180][ T12] ? __lock_release.isra.0+0x69/0x1a0 [ 11.380181][ T12] ? __rwlock_init+0x150/0x150 [ 11.380183][ T12] ? mark_held_locks+0x40/0x70 [ 11.380188][ T12] addrconf_dad_work+0x170/0x930 [ 11.380194][ T12] ? addrconf_dad_begin+0x540/0x540 [ 11.380197][ T12] ? rcu_is_watching+0x16/0xd0 [ 11.380198][ T12] ? rcu_is_watching+0x16/0xd0 [ 11.380200][ T12] ? lock_acquire+0x13c/0x160 [ 11.380202][ T12] ? rcu_is_watching+0x16/0xd0 [ 11.380205][ T12] process_one_work+0xe3e/0x1560 [ 11.380212][ T12] ? __queue_delayed_work+0x470/0x470 [ 11.380215][ T12] ? lock_acquire.part.0+0xd4/0x280 [ 11.380222][ T12] worker_thread+0x4f1/0xd60 [ 11.380229][ T12] ? rescuer_thread+0x1340/0x1340 [ 11.380232][ T12] kthread+0x367/0x460 [ 11.380234][ T12] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 11.380237][ T12] ? kthread_affine_preferred+0x4c0/0x4c0 [ 11.380240][ T12] ret_from_fork+0x474/0x6b0 [ 11.380244][ T12] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 11.380248][ T12] ? __switch_to+0x5a3/0xe00 [ 11.380251][ T12] ? kthread_affine_preferred+0x4c0/0x4c0 [ 11.380254][ T12] ret_from_fork_asm+0x11/0x20 [ 11.380263][ T12] [ 11.509330][ T12] ip6_tunnel: gre1 xmit: Local address not yet configured! [ 14.076785][ T267] socat (267) used greatest stack depth: 22448 bytes left [ 14.076804][ T267] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.076807][ T267] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 267, name: socat [ 14.076808][ T267] preempt_count: 2, expected: 0 [ 14.076809][ T267] RCU nest depth: 0, expected: 0 [ 14.076810][ T267] locks held by socat/267: 5, last CPU#2: [ 14.076812][ T267] #0: ffffffff97a167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.076824][ T267] #1: ffffffff97b7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.076829][ T267] #2: ffffffff97b7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.076833][ T267] #3: ffffffff97a9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.076837][ T267] #4: ffffffff97a9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 14.076841][ T267] irq event stamp: 122348 [ 14.076842][ T267] hardirqs last enabled at (122347): [] __down_trylock_console_sem+0x86/0xa0 [ 14.076845][ T267] hardirqs last disabled at (122348): [] console_emit_next_record+0x3d4/0x4c0 [ 14.076847][ T267] softirqs last enabled at (121790): [] handle_softirqs+0x67c/0x900 [ 14.076849][ T267] softirqs last disabled at (120475): [] __irq_exit_rcu+0x145/0x1c0 [ 14.076852][ T267] Preemption disabled at: [ 14.076852][ T267] [<0000000000000000>] 0x0 [ 14.076859][ T267] CPU: 2 UID: 0 PID: 267 Comm: socat Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.076862][ T267] Tainted: [W]=WARN [ 14.076864][ T267] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.076865][ T267] Call Trace: [ 14.076867][ T267] [ 14.076869][ T267] dump_stack_lvl+0x6f/0xa0 [ 14.076875][ T267] __might_resched.cold+0x1fe/0x2c1 [ 14.076879][ T267] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.076883][ T267] ? __kmalloc_noprof+0xdb/0x760 [ 14.076888][ T267] __kmalloc_noprof+0x443/0x760 [ 14.076890][ T267] ? alloc_buf.isra.0+0x4b/0x260 [ 14.076897][ T267] ? do_raw_spin_unlock+0x59/0x250 [ 14.076899][ T267] alloc_buf.isra.0+0x4b/0x260 [ 14.076903][ T267] put_chars+0x1e1/0x2f0 [ 14.076906][ T267] ? __send_to_port+0x420/0x420 [ 14.076907][ T267] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 14.076910][ T267] ? validate_chain+0x38b/0xc20 [ 14.076916][ T267] hvc_console_print+0x292/0x780 [ 14.076923][ T267] ? hvc_write+0x3a0/0x3a0 [ 14.076926][ T267] ? rcu_is_watching+0x16/0xd0 [ 14.076928][ T267] ? lock_acquire+0x13c/0x160 [ 14.076932][ T267] console_emit_next_record+0x22f/0x4c0 [ 14.076936][ T267] ? devkmsg_read+0x4b0/0x4b0 [ 14.076938][ T267] ? console_flush_one_record+0x106/0x710 [ 14.076941][ T267] ? rcu_is_watching+0x16/0xd0 [ 14.076943][ T267] ? lock_acquire+0x13c/0x160 [ 14.076947][ T267] console_flush_one_record+0x46f/0x710 [ 14.076951][ T267] ? console_emit_next_record+0x4c0/0x4c0 [ 14.076953][ T267] ? __lock_acquire+0x518/0xc20 [ 14.076958][ T267] console_unlock+0xee/0x1f0 [ 14.076961][ T267] ? console_flush_one_record+0x710/0x710 [ 14.076963][ T267] ? rcu_is_watching+0x16/0xd0 [ 14.076965][ T267] ? lock_acquire+0xe0/0x160 [ 14.076968][ T267] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.076970][ T267] ? vprintk_emit+0x320/0x3e0 [ 14.076973][ T267] vprintk_emit+0x37c/0x3e0 [ 14.076976][ T267] ? wake_up_klogd_work_func+0x90/0x90 [ 14.076977][ T267] ? do_raw_spin_unlock+0x59/0x250 [ 14.076980][ T267] ? __lock_acquire+0x518/0xc20 [ 14.076984][ T267] _printk+0xc7/0x100 [ 14.076988][ T267] ? snapshot_read.cold+0x21/0x21 [ 14.076991][ T267] ? do_raw_spin_lock+0x131/0x280 [ 14.076993][ T267] ? __rwlock_init+0x150/0x150 [ 14.076997][ T267] ? do_raw_spin_lock+0x131/0x280 [ 14.077000][ T267] do_exit.cold+0x82/0x9c [ 14.077004][ T267] ? exit_notify+0x890/0x890 [ 14.077005][ T267] ? __lock_release.isra.0+0x69/0x1a0 [ 14.077008][ T267] ? rcu_is_watching+0x16/0xd0 [ 14.077011][ T267] do_group_exit+0xb8/0x370 [ 14.077014][ T267] __x64_sys_exit_group+0x3c/0x50 [ 14.077016][ T267] x64_sys_call+0x1567/0x1570 [ 14.077018][ T267] do_syscall_64+0xff/0x530 [ 14.077022][ T267] ? exc_page_fault+0xee/0x100 [ 14.077025][ T267] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.077027][ T267] RIP: 0033:0x7f79373ce1b8 [ 14.077029][ T267] Code: Unable to access opcode bytes at 0x7f79373ce18e. [ 14.077030][ T267] RSP: 002b:00007ffdc636c548 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 14.077033][ T267] RAX: ffffffffffffffda RBX: 00007f79374fef88 RCX: 00007f79373ce1b8 [ 14.077034][ T267] RDX: 00007f79372b3e88 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 14.077035][ T267] RBP: 00007ffdc636c5a0 R08: 0000000000000000 R09: 0000000000004010 [ 14.077036][ T267] R10: 00007ffdc636c3a0 R11: 0000000000000246 R12: 0000000000000003 [ 14.077037][ T267] R13: 0000000000000000 R14: 00007f79374fd680 R15: 00007f79374fefa0 [ 14.077043][ T267] [ 14.550870][ T280] socat (280) used greatest stack depth: 21856 bytes left