[ 10.046119][ T215] veth0: renamed from veth1 [ 10.046183][ T215] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.046185][ T215] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 215, name: ip [ 10.046187][ T215] preempt_count: 1, expected: 0 [ 10.046187][ T215] RCU nest depth: 0, expected: 0 [ 10.046188][ T215] locks held by ip/215: 5, last CPU#3: [ 10.046190][ T215] #0: ffffffff8bd1b740 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x9a8/0x11b0 [ 10.046202][ T215] #1: ffffffff8b57ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.046207][ T215] #2: ffffffff8b57de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.046211][ T215] #3: ffffffff8b49d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.046215][ T215] #4: ffffffff8b49d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.046218][ T215] irq event stamp: 22404 [ 10.046219][ T215] hardirqs last enabled at (22403): [] __down_trylock_console_sem+0x86/0xa0 [ 10.046222][ T215] hardirqs last disabled at (22404): [] console_emit_next_record+0x3d4/0x4c0 [ 10.046224][ T215] softirqs last enabled at (22398): [] netif_change_name+0x216/0x8c0 [ 10.046228][ T215] softirqs last disabled at (22396): [] netif_change_name+0x1ad/0x8c0 [ 10.046231][ T215] Preemption disabled at: [ 10.046231][ T215] [] vprintk_emit+0x31b/0x3e0 [ 10.046236][ T215] CPU: 3 UID: 0 PID: 215 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.046239][ T215] Tainted: [W]=WARN [ 10.046240][ T215] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.046242][ T215] Call Trace: [ 10.046244][ T215] [ 10.046245][ T215] dump_stack_lvl+0x6f/0xa0 [ 10.046251][ T215] ? vprintk_emit+0x31b/0x3e0 [ 10.046253][ T215] __might_resched.cold+0x1fe/0x2c1 [ 10.046257][ T215] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.046262][ T215] ? __kmalloc_noprof+0xdb/0x760 [ 10.046266][ T215] __kmalloc_noprof+0x443/0x760 [ 10.046268][ T215] ? alloc_buf.isra.0+0x4b/0x260 [ 10.046274][ T215] ? do_raw_spin_unlock+0x59/0x250 [ 10.046277][ T215] alloc_buf.isra.0+0x4b/0x260 [ 10.046281][ T215] put_chars+0x1e1/0x2f0 [ 10.046283][ T215] ? __send_to_port+0x420/0x420 [ 10.046290][ T215] hvc_console_print+0x292/0x780 [ 10.046297][ T215] ? hvc_write+0x3a0/0x3a0 [ 10.046300][ T215] ? lock_acquire+0x13c/0x160 [ 10.046304][ T215] console_emit_next_record+0x22f/0x4c0 [ 10.046308][ T215] ? devkmsg_read+0x4b0/0x4b0 [ 10.046310][ T215] ? console_flush_one_record+0x106/0x710 [ 10.046313][ T215] ? rcu_is_watching+0x16/0xd0 [ 10.046316][ T215] ? lock_acquire+0x13c/0x160 [ 10.046320][ T215] console_flush_one_record+0x46f/0x710 [ 10.046324][ T215] ? console_emit_next_record+0x4c0/0x4c0 [ 10.046326][ T215] ? __lock_acquire+0x518/0xc20 [ 10.046331][ T215] console_unlock+0xee/0x1f0 [ 10.046334][ T215] ? console_flush_one_record+0x710/0x710 [ 10.046336][ T215] ? rcu_is_watching+0x16/0xd0 [ 10.046338][ T215] ? lock_acquire+0xe0/0x160 [ 10.046341][ T215] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.046343][ T215] ? vprintk_emit+0x320/0x3e0 [ 10.046346][ T215] vprintk_emit+0x37c/0x3e0 [ 10.046349][ T215] ? wake_up_klogd_work_func+0x90/0x90 [ 10.046351][ T215] ? save_trace+0x68/0x280 [ 10.046355][ T215] _printk+0xc7/0x100 [ 10.046359][ T215] ? snapshot_read.cold+0x21/0x21 [ 10.046362][ T215] ? validate_chain+0x34a/0xc20 [ 10.046364][ T215] ? netdev_name+0x43/0x60 [ 10.046368][ T215] ? __netdev_printk+0x17f/0x1d0 [ 10.046371][ T215] ? do_setlink.isra.0+0x1f7d/0x2a60 [ 10.046373][ T215] netdev_info+0xe2/0x116 [ 10.046376][ T215] ? netdev_notice+0x120/0x120 [ 10.046379][ T215] ? find_held_lock+0x2b/0x80 [ 10.046381][ T215] ? __lock_release.isra.0+0x69/0x1a0 [ 10.046384][ T215] ? mark_held_locks+0x40/0x70 [ 10.046388][ T215] ? do_setlink.isra.0+0x1f7d/0x2a60 [ 10.046390][ T215] netif_change_name.cold+0x4f/0x89 [ 10.046392][ T215] ? is_bpf_text_address+0x68/0x110 [ 10.046397][ T215] ? netdev_adjacent_rename_links+0x470/0x470 [ 10.046400][ T215] ? __kernel_text_address+0x12/0x30 [ 10.046402][ T215] ? write_profile+0xf0/0xf0 [ 10.046406][ T215] ? __asan_memset+0x27/0x50 [ 10.046412][ T215] do_setlink.isra.0+0x1f7d/0x2a60 [ 10.046415][ T215] ? stack_trace_save+0x93/0xc0 [ 10.046417][ T215] ? rtnl_link_get_size+0x350/0x350 [ 10.046418][ T215] ? rcu_read_lock_any_held+0x66/0x90 [ 10.046421][ T215] ? stack_depot_save_flags+0x38e/0x790 [ 10.046424][ T215] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.046426][ T215] ? rcu_read_lock_any_held+0x3c/0x90 [ 10.046428][ T215] ? validate_chain+0x38b/0xc20 [ 10.046431][ T215] ? kasan_save_stack+0x3d/0x50 [ 10.046432][ T215] ? kasan_save_stack+0x2f/0x50 [ 10.046434][ T215] ? kasan_save_track+0x14/0x30 [ 10.046435][ T215] ? __kasan_kmalloc+0x7b/0x90 [ 10.046437][ T215] ? __lock_acquire+0x518/0xc20 [ 10.046439][ T215] ? snd_ac97_proc_read_main+0x4de/0x1f00 [ 10.046442][ T215] ? ___sys_sendmsg+0xd0/0x1d0 [ 10.046446][ T215] ? lock_acquire.part.0+0xd4/0x280 [ 10.046448][ T215] ? rtnl_newlink+0x9a8/0x11b0 [ 10.046450][ T215] ? rcu_is_watching+0x16/0xd0 [ 10.046452][ T215] ? lock_acquire+0x13c/0x160 [ 10.046454][ T215] ? rcu_is_watching+0x16/0xd0 [ 10.046455][ T215] ? rcu_is_watching+0x16/0xd0 [ 10.046456][ T215] ? trace_contention_end+0xb3/0x180 [ 10.046459][ T215] ? __mutex_lock+0x1db/0x1ea0 [ 10.046461][ T215] ? __mutex_lock+0x9a3/0x1ea0 [ 10.046463][ T215] ? rtnl_newlink+0x9a8/0x11b0 [ 10.046466][ T215] ? ww_mutex_lock+0x160/0x160 [ 10.046468][ T215] ? nla_get_range_signed+0x3d0/0x3d0 [ 10.046473][ T215] ? rcu_is_watching+0x16/0xd0 [ 10.046475][ T215] ? __rtnl_newlink+0x3fa/0xa50 [ 10.046480][ T215] rtnl_newlink+0x9f1/0x11b0 [ 10.046486][ T215] ? rtnl_bridge_getlink+0x850/0x850 [ 10.046487][ T215] ? __lock_acquire+0x518/0xc20 [ 10.046492][ T215] ? lock_acquire.part.0+0xd4/0x280 [ 10.046494][ T215] ? find_held_lock+0x2b/0x80 [ 10.046496][ T215] ? rtnl_bridge_getlink+0x850/0x850 [ 10.046498][ T215] ? __lock_release.isra.0+0x69/0x1a0 [ 10.046502][ T215] ? rtnl_bridge_getlink+0x850/0x850 [ 10.046504][ T215] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 10.046507][ T215] ? rtnl_link_fill+0x920/0x920 [ 10.046508][ T215] ? __lock_acquire+0x518/0xc20 [ 10.046512][ T215] ? lock_acquire.part.0+0xd4/0x280 [ 10.046514][ T215] ? find_held_lock+0x2b/0x80 [ 10.046518][ T215] netlink_rcv_skb+0x14e/0x3a0 [ 10.046523][ T215] ? rtnl_link_fill+0x920/0x920 [ 10.046526][ T215] ? netlink_ack+0xcf0/0xcf0 [ 10.046533][ T215] ? netlink_deliver_tap+0xc5/0x330 [ 10.046535][ T215] ? netlink_deliver_tap+0x13c/0x330 [ 10.046539][ T215] netlink_unicast+0x486/0x750 [ 10.046543][ T215] ? netlink_attachskb+0x810/0x810 [ 10.046546][ T215] ? find_held_lock+0x2b/0x80 [ 10.046550][ T215] netlink_sendmsg+0x75b/0xc90 [ 10.046554][ T215] ? netlink_unicast+0x750/0x750 [ 10.046557][ T215] ? __lock_release.isra.0+0x69/0x1a0 [ 10.046559][ T215] ? __import_iovec+0x36c/0x620 [ 10.046564][ T215] __sock_sendmsg+0xce/0x190 [ 10.046567][ T215] ____sys_sendmsg+0x61a/0x860 [ 10.046569][ T215] ? copy_msghdr_from_user+0x279/0x420 [ 10.046572][ T215] ? sock_write_iter+0x400/0x400 [ 10.046573][ T215] ? move_addr_to_kernel+0x40/0x40 [ 10.046580][ T215] ___sys_sendmsg+0x14e/0x1d0 [ 10.046583][ T215] ? copy_msghdr_from_user+0x420/0x420 [ 10.046598][ T215] __sys_sendmsg+0x12c/0x1d0 [ 10.046601][ T215] ? __sys_sendmsg_sock+0x20/0x20 [ 10.046607][ T215] ? rcu_is_watching+0x16/0xd0 [ 10.046610][ T215] do_syscall_64+0xff/0x530 [ 10.046613][ T215] ? exc_page_fault+0xee/0x100 [ 10.046616][ T215] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.046618][ T215] RIP: 0033:0x7f3a9645a54e [ 10.046622][ T215] 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 [ 10.046624][ T215] RSP: 002b:00007ffdf1958810 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 10.046626][ T215] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f3a9645a54e [ 10.046628][ T215] RDX: 0000000000000000 RSI: 00007ffdf19588c0 RDI: 0000000000000005 [ 10.046628][ T215] RBP: 00007ffdf1958820 R08: 0000000000000000 R09: 0000000000000000 [ 10.046629][ T215] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91745f [ 10.046630][ T215] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdf1958f90 [ 10.046636][ T215] [ 10.109261][ T215] ip (215) used greatest stack depth: 23208 bytes left [ 10.372897][ T244] gre: GRE over IPv4 demultiplexer driver [ 10.381695][ T244] ip6_gre: GRE over IPv6 tunneling driver [ 10.444156][ T12] ip6_tunnel: gre1 xmit: Local address not yet configured! [ 10.444228][ T12] [ 10.444230][ T12] ============================= [ 10.444231][ T12] WARNING: suspicious RCU usage [ 10.444232][ T12] 7.2.0-virtme #1 Tainted: G W [ 10.444234][ T12] ----------------------------- [ 10.444234][ T12] kernel/sched/core.c:9196 Illegal context switch in RCU-bh read-side critical section! [ 10.444236][ T12] [ 10.444236][ T12] other info that might help us debug this: [ 10.444236][ T12] [ 10.444237][ T12] [ 10.444237][ T12] rcu_scheduler_active = 2, debug_locks = 1 [ 10.444238][ T12] locks held by kworker/u16:0/12: 11, last CPU#1: [ 10.444240][ T12] #0: ff1100000997e540 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0xd9a/0x1560 [ 10.444252][ T12] #1: ffa00000000c7d10 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0xdfc/0x1560 [ 10.444256][ T12] #2: ffffffff8bd1b740 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x11a/0x930 [ 10.444261][ T12] #3: ffffffff8b594c00 (rcu_read_lock){....}-{1:3}, at: ndisc_send_skb+0x175/0x1520 [ 10.444266][ T12] #4: ffffffff8b594c00 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x11d/0x7f0 [ 10.444270][ T12] #5: ffffffff8b594ba0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x204/0x1b90 [ 10.444275][ T12] #6: ffffffff8b594c00 (rcu_read_lock){....}-{1:3}, at: ip6_tnl_xmit_ctl+0xfd/0x390 [ 10.444280][ T12] #7: ffffffff8b57ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.444284][ T12] #8: ffffffff8b57de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.444288][ T12] #9: ffffffff8b49d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.444291][ T12] #10: ffffffff8b49d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.444295][ T12] [ 10.444295][ T12] stack backtrace: [ 10.444298][ T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.444301][ T12] Tainted: [W]=WARN [ 10.444301][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.444303][ T12] Workqueue: ipv6_addrconf addrconf_dad_work [ 10.444306][ T12] Call Trace: [ 10.444308][ T12] [ 10.444309][ T12] dump_stack_lvl+0x6f/0xa0 [ 10.444316][ T12] lockdep_rcu_suspicious.cold+0x37/0x8a [ 10.444321][ T12] __might_resched+0x2ac/0x390 [ 10.444326][ T12] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.444328][ T12] ? __kmalloc_noprof+0xdb/0x760 [ 10.444333][ T12] __kmalloc_noprof+0x443/0x760 [ 10.444335][ T12] ? alloc_buf.isra.0+0x4b/0x260 [ 10.444342][ T12] ? do_raw_spin_unlock+0x59/0x250 [ 10.444345][ T12] alloc_buf.isra.0+0x4b/0x260 [ 10.444348][ T12] put_chars+0x1e1/0x2f0 [ 10.444351][ T12] ? __send_to_port+0x420/0x420 [ 10.444357][ T12] hvc_console_print+0x292/0x780 [ 10.444365][ T12] ? hvc_write+0x3a0/0x3a0 [ 10.444368][ T12] ? lock_acquire+0x13c/0x160 [ 10.444373][ T12] console_emit_next_record+0x22f/0x4c0 [ 10.444376][ T12] ? devkmsg_read+0x4b0/0x4b0 [ 10.444378][ T12] ? console_flush_one_record+0x106/0x710 [ 10.444382][ T12] ? rcu_is_watching+0x16/0xd0 [ 10.444384][ T12] ? lock_acquire+0x13c/0x160 [ 10.444388][ T12] console_flush_one_record+0x46f/0x710 [ 10.444393][ T12] ? console_emit_next_record+0x4c0/0x4c0 [ 10.444394][ T12] ? __lock_acquire+0x518/0xc20 [ 10.444400][ T12] console_unlock+0xee/0x1f0 [ 10.444403][ T12] ? console_flush_one_record+0x710/0x710 [ 10.444405][ T12] ? rcu_is_watching+0x16/0xd0 [ 10.444406][ T12] ? lock_acquire+0xe0/0x160 [ 10.444410][ T12] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.444412][ T12] ? vprintk_emit+0x320/0x3e0 [ 10.444415][ T12] vprintk_emit+0x37c/0x3e0 [ 10.444418][ T12] ? wake_up_klogd_work_func+0x90/0x90 [ 10.444420][ T12] ? __lock_release.isra.0+0x69/0x1a0 [ 10.444425][ T12] _printk+0xc7/0x100 [ 10.444428][ T12] ? snapshot_read.cold+0x21/0x21 [ 10.444429][ T12] ? ___ratelimit+0x4e7/0xa00 [ 10.444436][ T12] ? idr_get_free+0x830/0x830 [ 10.444440][ T12] ip6_tnl_xmit_ctl.cold+0x75/0x7a [ 10.444445][ T12] ip6gre_tunnel_xmit+0x1f5/0xdd0 [ip6_gre] [ 10.444451][ T12] ? __gre6_xmit+0x19a0/0x19a0 [ip6_gre] [ 10.444453][ T12] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.444455][ T12] ? rcu_read_lock_any_held+0x3c/0x90 [ 10.444458][ T12] ? validate_chain+0x38b/0xc20 [ 10.444461][ T12] ? netif_skb_features+0x662/0x14e0 [ 10.444463][ T12] ? __lock_acquire+0x518/0xc20 [ 10.444467][ T12] ? skb_network_protocol+0x3b0/0x3b0 [ 10.444472][ T12] dev_hard_start_xmit+0xf4/0x620 [ 10.444475][ T12] ? validate_xmit_skb+0x72/0x9a0 [ 10.444478][ T12] __dev_queue_xmit+0xc1a/0x1b90 [ 10.444482][ T12] ? __lock_acquire+0x518/0xc20 [ 10.444484][ T12] ? ipv6_setsockopt+0xa5/0xf0 [ 10.444488][ T12] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 10.444490][ T12] ? find_held_lock+0x2b/0x80 [ 10.444493][ T12] ? __lock_release.isra.0+0x69/0x1a0 [ 10.444495][ T12] ? __rwlock_init+0x150/0x150 [ 10.444497][ T12] ? mark_held_locks+0x40/0x70 [ 10.444500][ T12] ? lockdep_hardirqs_on+0x91/0x130 [ 10.444503][ T12] ? __local_bh_enable_ip+0xaa/0x150 [ 10.444506][ T12] ? __local_bh_enable_ip+0xaa/0x150 [ 10.444508][ T12] ? ___neigh_create+0x811/0x1070 [ 10.444514][ T12] ip6_finish_output2+0x48d/0x13f0 [ 10.444524][ T12] ? ip6_dst_lookup+0x80/0x80 [ 10.444525][ T12] ? find_held_lock+0x2b/0x80 [ 10.444528][ T12] ? __lock_release.isra.0+0x69/0x1a0 [ 10.444531][ T12] ? ip6_mtu+0x174/0x410 [ 10.444536][ T12] ip6_finish_output+0x701/0xe80 [ 10.444540][ T12] ip6_output+0x23f/0x7f0 [ 10.444543][ T12] ? ip6_finish_output+0xe80/0xe80 [ 10.444546][ T12] ? lock_acquire.part.0+0xd4/0x280 [ 10.444548][ T12] ? find_held_lock+0x2b/0x80 [ 10.444551][ T12] ? __lock_release.isra.0+0x69/0x1a0 [ 10.444552][ T12] ? __local_bh_enable_ip+0xaa/0x150 [ 10.444557][ T12] ndisc_send_skb+0xba3/0x1520 [ 10.444561][ T12] ? ndisc_recv_na+0xea0/0xea0 [ 10.444567][ T12] ? __asan_memset+0x27/0x50 [ 10.444573][ T12] addrconf_dad_completed+0x37e/0xe10 [ 10.444576][ T12] ? lock_acquire.part.0+0xd4/0x280 [ 10.444579][ T12] ? addrconf_rs_timer+0x770/0x770 [ 10.444581][ T12] ? __lock_release.isra.0+0x69/0x1a0 [ 10.444582][ T12] ? __rwlock_init+0x150/0x150 [ 10.444585][ T12] ? mark_held_locks+0x40/0x70 [ 10.444588][ T12] ? addrconf_dad_begin+0x2e1/0x540 [ 10.444590][ T12] addrconf_dad_begin+0x2e1/0x540 [ 10.444592][ T12] ? lock_acquire.part.0+0xd4/0x280 [ 10.444595][ T12] ? addrconf_dad_completed+0xe10/0xe10 [ 10.444596][ T12] ? __lock_release.isra.0+0x69/0x1a0 [ 10.444598][ T12] ? __rwlock_init+0x150/0x150 [ 10.444600][ T12] ? mark_held_locks+0x40/0x70 [ 10.444605][ T12] addrconf_dad_work+0x170/0x930 [ 10.444608][ T12] ? addrconf_dad_begin+0x540/0x540 [ 10.444611][ T12] ? rcu_is_watching+0x16/0xd0 [ 10.444612][ T12] ? rcu_is_watching+0x16/0xd0 [ 10.444614][ T12] ? lock_acquire+0x13c/0x160 [ 10.444616][ T12] ? rcu_is_watching+0x16/0xd0 [ 10.444619][ T12] process_one_work+0xe3e/0x1560 [ 10.444626][ T12] ? __queue_delayed_work+0x470/0x470 [ 10.444629][ T12] ? lock_acquire.part.0+0xd4/0x280 [ 10.444636][ T12] worker_thread+0x4f1/0xd60 [ 10.444643][ T12] ? rescuer_thread+0x1340/0x1340 [ 10.444646][ T12] kthread+0x367/0x460 [ 10.444648][ T12] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 10.444652][ T12] ? kthread_affine_preferred+0x4c0/0x4c0 [ 10.444654][ T12] ret_from_fork+0x474/0x6b0 [ 10.444659][ T12] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 10.444662][ T12] ? __switch_to+0x5a3/0xe00 [ 10.444666][ T12] ? kthread_affine_preferred+0x4c0/0x4c0 [ 10.444668][ T12] ret_from_fork_asm+0x11/0x20 [ 10.444677][ T12] [ 10.550832][ T12] ip6_tunnel: gre1 xmit: Local address not yet configured! [ 13.097023][ T268] socat (268) used greatest stack depth: 22320 bytes left [ 13.097041][ T268] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.097043][ T268] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 268, name: socat [ 13.097044][ T268] preempt_count: 2, expected: 0 [ 13.097045][ T268] RCU nest depth: 0, expected: 0 [ 13.097046][ T268] locks held by socat/268: 5, last CPU#0: [ 13.097048][ T268] #0: ffffffff8b4167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.097058][ T268] #1: ffffffff8b57ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.097062][ T268] #2: ffffffff8b57de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.097066][ T268] #3: ffffffff8b49d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.097070][ T268] #4: ffffffff8b49d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 13.097074][ T268] irq event stamp: 135110 [ 13.097075][ T268] hardirqs last enabled at (135109): [] __down_trylock_console_sem+0x86/0xa0 [ 13.097078][ T268] hardirqs last disabled at (135110): [] console_emit_next_record+0x3d4/0x4c0 [ 13.097080][ T268] softirqs last enabled at (134110): [] unix_release_sock+0x446/0xe60 [ 13.097084][ T268] softirqs last disabled at (134108): [] unix_release_sock+0x39f/0xe60 [ 13.097086][ T268] Preemption disabled at: [ 13.097086][ T268] [<0000000000000000>] 0x0 [ 13.097093][ T268] CPU: 0 UID: 0 PID: 268 Comm: socat Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.097096][ T268] Tainted: [W]=WARN [ 13.097097][ T268] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.097098][ T268] Call Trace: [ 13.097100][ T268] [ 13.097101][ T268] dump_stack_lvl+0x6f/0xa0 [ 13.097107][ T268] __might_resched.cold+0x1fe/0x2c1 [ 13.097111][ T268] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.097115][ T268] ? __kmalloc_noprof+0xdb/0x760 [ 13.097119][ T268] __kmalloc_noprof+0x443/0x760 [ 13.097121][ T268] ? alloc_buf.isra.0+0x4b/0x260 [ 13.097127][ T268] ? do_raw_spin_unlock+0x59/0x250 [ 13.097130][ T268] alloc_buf.isra.0+0x4b/0x260 [ 13.097134][ T268] put_chars+0x1e1/0x2f0 [ 13.097136][ T268] ? __send_to_port+0x420/0x420 [ 13.097137][ T268] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 13.097140][ T268] ? validate_chain+0x38b/0xc20 [ 13.097146][ T268] hvc_console_print+0x292/0x780 [ 13.097153][ T268] ? hvc_write+0x3a0/0x3a0 [ 13.097155][ T268] ? rcu_is_watching+0x16/0xd0 [ 13.097157][ T268] ? lock_acquire+0x13c/0x160 [ 13.097161][ T268] console_emit_next_record+0x22f/0x4c0 [ 13.097165][ T268] ? devkmsg_read+0x4b0/0x4b0 [ 13.097167][ T268] ? console_flush_one_record+0x106/0x710 [ 13.097170][ T268] ? rcu_is_watching+0x16/0xd0 [ 13.097172][ T268] ? lock_acquire+0x13c/0x160 [ 13.097176][ T268] console_flush_one_record+0x46f/0x710 [ 13.097180][ T268] ? console_emit_next_record+0x4c0/0x4c0 [ 13.097182][ T268] ? __lock_acquire+0x518/0xc20 [ 13.097187][ T268] console_unlock+0xee/0x1f0 [ 13.097190][ T268] ? console_flush_one_record+0x710/0x710 [ 13.097192][ T268] ? rcu_is_watching+0x16/0xd0 [ 13.097193][ T268] ? lock_acquire+0xe0/0x160 [ 13.097197][ T268] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.097199][ T268] ? vprintk_emit+0x320/0x3e0 [ 13.097201][ T268] vprintk_emit+0x37c/0x3e0 [ 13.097204][ T268] ? wake_up_klogd_work_func+0x90/0x90 [ 13.097206][ T268] ? do_raw_spin_unlock+0x59/0x250 [ 13.097209][ T268] ? __lock_acquire+0x518/0xc20 [ 13.097212][ T268] _printk+0xc7/0x100 [ 13.097216][ T268] ? snapshot_read.cold+0x21/0x21 [ 13.097218][ T268] ? do_raw_spin_lock+0x131/0x280 [ 13.097221][ T268] ? __rwlock_init+0x150/0x150 [ 13.097225][ T268] ? do_raw_spin_lock+0x131/0x280 [ 13.097227][ T268] do_exit.cold+0x82/0x9c [ 13.097231][ T268] ? exit_notify+0x890/0x890 [ 13.097232][ T268] ? __lock_release.isra.0+0x69/0x1a0 [ 13.097235][ T268] ? rcu_is_watching+0x16/0xd0 [ 13.097238][ T268] do_group_exit+0xb8/0x370 [ 13.097241][ T268] __x64_sys_exit_group+0x3c/0x50 [ 13.097243][ T268] x64_sys_call+0x1567/0x1570 [ 13.097246][ T268] do_syscall_64+0xff/0x530 [ 13.097249][ T268] ? exc_page_fault+0xee/0x100 [ 13.097252][ T268] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.097254][ T268] RIP: 0033:0x7fed795191b8 [ 13.097256][ T268] Code: Unable to access opcode bytes at 0x7fed7951918e. [ 13.097257][ T268] RSP: 002b:00007ffebeccb8b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 13.097259][ T268] RAX: ffffffffffffffda RBX: 00007fed79649f88 RCX: 00007fed795191b8 [ 13.097261][ T268] RDX: 00007fed793fee88 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 13.097262][ T268] RBP: 00007ffebeccb910 R08: 0000000000000000 R09: 0000000000004010 [ 13.097262][ T268] R10: 00007ffebeccb710 R11: 0000000000000246 R12: 0000000000000003 [ 13.097263][ T268] R13: 0000000000000000 R14: 00007fed79648680 R15: 00007fed79649fa0 [ 13.097270][ T268] [ 13.436253][ T281] socat (281) used greatest stack depth: 21728 bytes left