[ 10.539074][ T215] veth0: renamed from veth1 [ 10.539140][ T215] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.539142][ T215] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 215, name: ip [ 10.539144][ T215] preempt_count: 1, expected: 0 [ 10.539145][ T215] RCU nest depth: 0, expected: 0 [ 10.539146][ T215] locks held by ip/215: 5, last CPU#1: [ 10.539148][ T215] #0: ffffffff8b31b740 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x9a8/0x11b0 [ 10.539160][ T215] #1: ffffffff8ab7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.539166][ T215] #2: ffffffff8ab7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.539170][ T215] #3: ffffffff8aa9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.539174][ T215] #4: ffffffff8aa9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.539178][ T215] irq event stamp: 25432 [ 10.539179][ T215] hardirqs last enabled at (25431): [] __down_trylock_console_sem+0x86/0xa0 [ 10.539182][ T215] hardirqs last disabled at (25432): [] console_emit_next_record+0x3d4/0x4c0 [ 10.539184][ T215] softirqs last enabled at (25426): [] netif_change_name+0x216/0x8c0 [ 10.539188][ T215] softirqs last disabled at (25424): [] netif_change_name+0x1ad/0x8c0 [ 10.539191][ T215] Preemption disabled at: [ 10.539192][ T215] [] vprintk_emit+0x31b/0x3e0 [ 10.539196][ T215] CPU: 1 UID: 0 PID: 215 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.539200][ T215] Tainted: [W]=WARN [ 10.539201][ T215] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.539203][ T215] Call Trace: [ 10.539204][ T215] [ 10.539206][ T215] dump_stack_lvl+0x6f/0xa0 [ 10.539217][ T215] ? vprintk_emit+0x31b/0x3e0 [ 10.539219][ T215] __might_resched.cold+0x1fe/0x2c1 [ 10.539223][ T215] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.539228][ T215] ? __kmalloc_noprof+0xdb/0x760 [ 10.539232][ T215] __kmalloc_noprof+0x443/0x760 [ 10.539234][ T215] ? alloc_buf.isra.0+0x4b/0x260 [ 10.539241][ T215] ? do_raw_spin_unlock+0x59/0x250 [ 10.539244][ T215] alloc_buf.isra.0+0x4b/0x260 [ 10.539247][ T215] put_chars+0x1e1/0x2f0 [ 10.539250][ T215] ? __send_to_port+0x420/0x420 [ 10.539257][ T215] hvc_console_print+0x292/0x780 [ 10.539265][ T215] ? hvc_write+0x3a0/0x3a0 [ 10.539269][ T215] ? lock_acquire+0x13c/0x160 [ 10.539274][ T215] console_emit_next_record+0x22f/0x4c0 [ 10.539278][ T215] ? devkmsg_read+0x4b0/0x4b0 [ 10.539280][ T215] ? console_flush_one_record+0x106/0x710 [ 10.539283][ T215] ? rcu_is_watching+0x16/0xd0 [ 10.539286][ T215] ? lock_acquire+0x13c/0x160 [ 10.539290][ T215] console_flush_one_record+0x46f/0x710 [ 10.539294][ T215] ? console_emit_next_record+0x4c0/0x4c0 [ 10.539296][ T215] ? __lock_acquire+0x518/0xc20 [ 10.539302][ T215] console_unlock+0xee/0x1f0 [ 10.539305][ T215] ? console_flush_one_record+0x710/0x710 [ 10.539307][ T215] ? rcu_is_watching+0x16/0xd0 [ 10.539309][ T215] ? lock_acquire+0xe0/0x160 [ 10.539313][ T215] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.539315][ T215] ? vprintk_emit+0x320/0x3e0 [ 10.539318][ T215] vprintk_emit+0x37c/0x3e0 [ 10.539321][ T215] ? wake_up_klogd_work_func+0x90/0x90 [ 10.539324][ T215] ? save_trace+0x68/0x280 [ 10.539329][ T215] _printk+0xc7/0x100 [ 10.539332][ T215] ? snapshot_read.cold+0x21/0x21 [ 10.539336][ T215] ? validate_chain+0x34a/0xc20 [ 10.539339][ T215] ? netdev_name+0x43/0x60 [ 10.539343][ T215] ? __netdev_printk+0x17f/0x1d0 [ 10.539346][ T215] ? do_setlink.isra.0+0x1f7d/0x2a60 [ 10.539348][ T215] netdev_info+0xe2/0x116 [ 10.539351][ T215] ? netdev_notice+0x120/0x120 [ 10.539354][ T215] ? find_held_lock+0x2b/0x80 [ 10.539358][ T215] ? __lock_release.isra.0+0x69/0x1a0 [ 10.539360][ T215] ? mark_held_locks+0x40/0x70 [ 10.539364][ T215] ? do_setlink.isra.0+0x1f7d/0x2a60 [ 10.539366][ T215] netif_change_name.cold+0x4f/0x89 [ 10.539369][ T215] ? is_bpf_text_address+0x68/0x110 [ 10.539374][ T215] ? netdev_adjacent_rename_links+0x470/0x470 [ 10.539377][ T215] ? __kernel_text_address+0x12/0x30 [ 10.539380][ T215] ? write_profile+0xf0/0xf0 [ 10.539384][ T215] ? __asan_memset+0x27/0x50 [ 10.539392][ T215] do_setlink.isra.0+0x1f7d/0x2a60 [ 10.539396][ T215] ? stack_trace_save+0x93/0xc0 [ 10.539398][ T215] ? rtnl_link_get_size+0x350/0x350 [ 10.539399][ T215] ? rcu_read_lock_any_held+0x66/0x90 [ 10.539403][ T215] ? stack_depot_save_flags+0x38e/0x790 [ 10.539406][ T215] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.539408][ T215] ? rcu_read_lock_any_held+0x3c/0x90 [ 10.539410][ T215] ? validate_chain+0x38b/0xc20 [ 10.539413][ T215] ? kasan_save_stack+0x3d/0x50 [ 10.539415][ T215] ? kasan_save_stack+0x2f/0x50 [ 10.539416][ T215] ? kasan_save_track+0x14/0x30 [ 10.539418][ T215] ? __kasan_kmalloc+0x7b/0x90 [ 10.539420][ T215] ? __lock_acquire+0x518/0xc20 [ 10.539422][ T215] ? snd_ac97_proc_read_main+0x4de/0x1f00 [ 10.539425][ T215] ? ___sys_sendmsg+0xd0/0x1d0 [ 10.539429][ T215] ? lock_acquire.part.0+0xd4/0x280 [ 10.539431][ T215] ? rtnl_newlink+0x9a8/0x11b0 [ 10.539433][ T215] ? rcu_is_watching+0x16/0xd0 [ 10.539435][ T215] ? lock_acquire+0x13c/0x160 [ 10.539437][ T215] ? rcu_is_watching+0x16/0xd0 [ 10.539438][ T215] ? rcu_is_watching+0x16/0xd0 [ 10.539440][ T215] ? trace_contention_end+0xb3/0x180 [ 10.539442][ T215] ? __mutex_lock+0x1db/0x1ea0 [ 10.539445][ T215] ? __mutex_lock+0x9a3/0x1ea0 [ 10.539447][ T215] ? rtnl_newlink+0x9a8/0x11b0 [ 10.539451][ T215] ? ww_mutex_lock+0x160/0x160 [ 10.539452][ T215] ? nla_get_range_signed+0x3d0/0x3d0 [ 10.539457][ T215] ? rcu_is_watching+0x16/0xd0 [ 10.539460][ T215] ? __rtnl_newlink+0x3fa/0xa50 [ 10.539466][ T215] rtnl_newlink+0x9f1/0x11b0 [ 10.539472][ T215] ? rtnl_bridge_getlink+0x850/0x850 [ 10.539474][ T215] ? __lock_acquire+0x518/0xc20 [ 10.539479][ T215] ? lock_acquire.part.0+0xd4/0x280 [ 10.539481][ T215] ? find_held_lock+0x2b/0x80 [ 10.539483][ T215] ? rtnl_bridge_getlink+0x850/0x850 [ 10.539485][ T215] ? __lock_release.isra.0+0x69/0x1a0 [ 10.539489][ T215] ? rtnl_bridge_getlink+0x850/0x850 [ 10.539491][ T215] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 10.539494][ T215] ? rtnl_link_fill+0x920/0x920 [ 10.539496][ T215] ? __lock_acquire+0x518/0xc20 [ 10.539501][ T215] ? lock_acquire.part.0+0xd4/0x280 [ 10.539503][ T215] ? find_held_lock+0x2b/0x80 [ 10.539510][ T215] netlink_rcv_skb+0x14e/0x3a0 [ 10.539513][ T215] ? rtnl_link_fill+0x920/0x920 [ 10.539516][ T215] ? netlink_ack+0xcf0/0xcf0 [ 10.539523][ T215] ? netlink_deliver_tap+0xc5/0x330 [ 10.539526][ T215] ? netlink_deliver_tap+0x13c/0x330 [ 10.539530][ T215] netlink_unicast+0x486/0x750 [ 10.539535][ T215] ? netlink_attachskb+0x810/0x810 [ 10.539538][ T215] ? find_held_lock+0x2b/0x80 [ 10.539542][ T215] netlink_sendmsg+0x75b/0xc90 [ 10.539547][ T215] ? netlink_unicast+0x750/0x750 [ 10.539551][ T215] ? __lock_release.isra.0+0x69/0x1a0 [ 10.539553][ T215] ? __import_iovec+0x36c/0x620 [ 10.539559][ T215] __sock_sendmsg+0xce/0x190 [ 10.539562][ T215] ____sys_sendmsg+0x61a/0x860 [ 10.539564][ T215] ? copy_msghdr_from_user+0x279/0x420 [ 10.539567][ T215] ? sock_write_iter+0x400/0x400 [ 10.539568][ T215] ? move_addr_to_kernel+0x40/0x40 [ 10.539577][ T215] ___sys_sendmsg+0x14e/0x1d0 [ 10.539580][ T215] ? copy_msghdr_from_user+0x420/0x420 [ 10.539598][ T215] __sys_sendmsg+0x12c/0x1d0 [ 10.539601][ T215] ? __sys_sendmsg_sock+0x20/0x20 [ 10.539608][ T215] ? rcu_is_watching+0x16/0xd0 [ 10.539611][ T215] do_syscall_64+0xff/0x530 [ 10.539614][ T215] ? exc_page_fault+0xee/0x100 [ 10.539618][ T215] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.539620][ T215] RIP: 0033:0x7fd0eb1e154e [ 10.539624][ 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 [ 10.539626][ T215] RSP: 002b:00007fff882d7400 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 10.539628][ T215] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd0eb1e154e [ 10.539630][ T215] RDX: 0000000000000000 RSI: 00007fff882d74b0 RDI: 0000000000000005 [ 10.539631][ T215] RBP: 00007fff882d7410 R08: 0000000000000000 R09: 0000000000000000 [ 10.539632][ T215] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916157 [ 10.539633][ T215] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff882d7b80 [ 10.539640][ T215] [ 10.614901][ T215] ip (215) used greatest stack depth: 23208 bytes left [ 10.866665][ T244] gre: GRE over IPv4 demultiplexer driver [ 10.879323][ T244] ip6_gre: GRE over IPv6 tunneling driver [ 10.941229][ T12] ip6_tunnel: gre1 xmit: Local address not yet configured! [ 10.941346][ T12] [ 10.941347][ T12] ============================= [ 10.941348][ T12] WARNING: suspicious RCU usage [ 10.941350][ T12] 7.2.0-virtme #1 Tainted: G W [ 10.941352][ T12] ----------------------------- [ 10.941352][ T12] kernel/sched/core.c:9196 Illegal context switch in RCU-bh read-side critical section! [ 10.941354][ T12] [ 10.941354][ T12] other info that might help us debug this: [ 10.941354][ T12] [ 10.941355][ T12] [ 10.941355][ T12] rcu_scheduler_active = 2, debug_locks = 1 [ 10.941356][ T12] locks held by kworker/u16:0/12: 11, last CPU#0: [ 10.941358][ T12] #0: ff11000009256540 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0xd9a/0x1560 [ 10.941371][ T12] #1: ffa00000000c7d10 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0xdfc/0x1560 [ 10.941375][ T12] #2: ffffffff8b31b740 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x11a/0x930 [ 10.941380][ T12] #3: ffffffff8ab94c00 (rcu_read_lock){....}-{1:3}, at: ndisc_send_skb+0x175/0x1520 [ 10.941385][ T12] #4: ffffffff8ab94c00 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x11d/0x7f0 [ 10.941390][ T12] #5: ffffffff8ab94ba0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x204/0x1b90 [ 10.941397][ T12] #6: ffffffff8ab94c00 (rcu_read_lock){....}-{1:3}, at: ip6_tnl_xmit_ctl+0xfd/0x390 [ 10.941402][ T12] #7: ffffffff8ab7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.941406][ T12] #8: ffffffff8ab7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.941410][ T12] #9: ffffffff8aa9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.941414][ T12] #10: ffffffff8aa9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.941418][ T12] [ 10.941418][ T12] stack backtrace: [ 10.941421][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.941424][ T12] Tainted: [W]=WARN [ 10.941425][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.941427][ T12] Workqueue: ipv6_addrconf addrconf_dad_work [ 10.941430][ T12] Call Trace: [ 10.941432][ T12] [ 10.941434][ T12] dump_stack_lvl+0x6f/0xa0 [ 10.941440][ T12] lockdep_rcu_suspicious.cold+0x37/0x8a [ 10.941447][ T12] __might_resched+0x2ac/0x390 [ 10.941452][ T12] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.941455][ T12] ? __kmalloc_noprof+0xdb/0x760 [ 10.941460][ T12] __kmalloc_noprof+0x443/0x760 [ 10.941463][ T12] ? alloc_buf.isra.0+0x4b/0x260 [ 10.941470][ T12] ? do_raw_spin_unlock+0x59/0x250 [ 10.941473][ T12] alloc_buf.isra.0+0x4b/0x260 [ 10.941478][ T12] put_chars+0x1e1/0x2f0 [ 10.941481][ T12] ? __send_to_port+0x420/0x420 [ 10.941489][ T12] hvc_console_print+0x292/0x780 [ 10.941499][ T12] ? hvc_write+0x3a0/0x3a0 [ 10.941503][ T12] ? lock_acquire+0x13c/0x160 [ 10.941512][ T12] console_emit_next_record+0x22f/0x4c0 [ 10.941516][ T12] ? devkmsg_read+0x4b0/0x4b0 [ 10.941519][ T12] ? console_flush_one_record+0x106/0x710 [ 10.941522][ T12] ? rcu_is_watching+0x16/0xd0 [ 10.941525][ T12] ? lock_acquire+0x13c/0x160 [ 10.941530][ T12] console_flush_one_record+0x46f/0x710 [ 10.941535][ T12] ? console_emit_next_record+0x4c0/0x4c0 [ 10.941537][ T12] ? __lock_acquire+0x518/0xc20 [ 10.941544][ T12] console_unlock+0xee/0x1f0 [ 10.941547][ T12] ? console_flush_one_record+0x710/0x710 [ 10.941550][ T12] ? rcu_is_watching+0x16/0xd0 [ 10.941552][ T12] ? lock_acquire+0xe0/0x160 [ 10.941556][ T12] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.941559][ T12] ? vprintk_emit+0x320/0x3e0 [ 10.941562][ T12] vprintk_emit+0x37c/0x3e0 [ 10.941566][ T12] ? wake_up_klogd_work_func+0x90/0x90 [ 10.941568][ T12] ? __lock_release.isra.0+0x69/0x1a0 [ 10.941574][ T12] _printk+0xc7/0x100 [ 10.941578][ T12] ? snapshot_read.cold+0x21/0x21 [ 10.941580][ T12] ? ___ratelimit+0x4e7/0xa00 [ 10.941587][ T12] ? idr_get_free+0x830/0x830 [ 10.941592][ T12] ip6_tnl_xmit_ctl.cold+0x75/0x7a [ 10.941598][ T12] ip6gre_tunnel_xmit+0x1f5/0xdd0 [ip6_gre] [ 10.941606][ T12] ? __gre6_xmit+0x19a0/0x19a0 [ip6_gre] [ 10.941609][ T12] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.941611][ T12] ? rcu_read_lock_any_held+0x3c/0x90 [ 10.941614][ T12] ? validate_chain+0x38b/0xc20 [ 10.941618][ T12] ? netif_skb_features+0x662/0x14e0 [ 10.941621][ T12] ? __lock_acquire+0x518/0xc20 [ 10.941625][ T12] ? skb_network_protocol+0x3b0/0x3b0 [ 10.941631][ T12] dev_hard_start_xmit+0xf4/0x620 [ 10.941635][ T12] ? validate_xmit_skb+0x72/0x9a0 [ 10.941639][ T12] __dev_queue_xmit+0xc1a/0x1b90 [ 10.941644][ T12] ? __lock_acquire+0x518/0xc20 [ 10.941646][ T12] ? ipv6_setsockopt+0xa6/0xf0 [ 10.941651][ T12] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 10.941653][ T12] ? find_held_lock+0x2b/0x80 [ 10.941657][ T12] ? __lock_release.isra.0+0x69/0x1a0 [ 10.941659][ T12] ? __rwlock_init+0x150/0x150 [ 10.941662][ T12] ? mark_held_locks+0x40/0x70 [ 10.941666][ T12] ? lockdep_hardirqs_on+0x91/0x130 [ 10.941668][ T12] ? __local_bh_enable_ip+0xaa/0x150 [ 10.941672][ T12] ? __local_bh_enable_ip+0xaa/0x150 [ 10.941674][ T12] ? ___neigh_create+0x811/0x1070 [ 10.941682][ T12] ip6_finish_output2+0x48d/0x13f0 [ 10.941688][ T12] ? ip6_dst_lookup+0x80/0x80 [ 10.941691][ T12] ? find_held_lock+0x2b/0x80 [ 10.941694][ T12] ? __lock_release.isra.0+0x69/0x1a0 [ 10.941698][ T12] ? ip6_mtu+0x174/0x410 [ 10.941704][ T12] ip6_finish_output+0x701/0xe80 [ 10.941709][ T12] ip6_output+0x23f/0x7f0 [ 10.941712][ T12] ? ip6_finish_output+0xe80/0xe80 [ 10.941715][ T12] ? lock_acquire.part.0+0xd4/0x280 [ 10.941718][ T12] ? find_held_lock+0x2b/0x80 [ 10.941721][ T12] ? __lock_release.isra.0+0x69/0x1a0 [ 10.941723][ T12] ? __local_bh_enable_ip+0xaa/0x150 [ 10.941729][ T12] ndisc_send_skb+0xba3/0x1520 [ 10.941734][ T12] ? ndisc_recv_na+0xea0/0xea0 [ 10.941742][ T12] ? __asan_memset+0x27/0x50 [ 10.941749][ T12] addrconf_dad_completed+0x37e/0xe10 [ 10.941752][ T12] ? lock_acquire.part.0+0xd4/0x280 [ 10.941755][ T12] ? addrconf_rs_timer+0x770/0x770 [ 10.941758][ T12] ? __lock_release.isra.0+0x69/0x1a0 [ 10.941760][ T12] ? __rwlock_init+0x150/0x150 [ 10.941763][ T12] ? mark_held_locks+0x40/0x70 [ 10.941768][ T12] ? addrconf_dad_begin+0x2e1/0x540 [ 10.941770][ T12] addrconf_dad_begin+0x2e1/0x540 [ 10.941771][ T12] ? lock_acquire.part.0+0xd4/0x280 [ 10.941775][ T12] ? addrconf_dad_completed+0xe10/0xe10 [ 10.941777][ T12] ? __lock_release.isra.0+0x69/0x1a0 [ 10.941779][ T12] ? __rwlock_init+0x150/0x150 [ 10.941781][ T12] ? mark_held_locks+0x40/0x70 [ 10.941787][ T12] addrconf_dad_work+0x170/0x930 [ 10.941791][ T12] ? addrconf_dad_begin+0x540/0x540 [ 10.941794][ T12] ? rcu_is_watching+0x16/0xd0 [ 10.941795][ T12] ? rcu_is_watching+0x16/0xd0 [ 10.941797][ T12] ? lock_acquire+0x13c/0x160 [ 10.941799][ T12] ? rcu_is_watching+0x16/0xd0 [ 10.941803][ T12] process_one_work+0xe3e/0x1560 [ 10.941811][ T12] ? __queue_delayed_work+0x470/0x470 [ 10.941815][ T12] ? lock_acquire.part.0+0xd4/0x280 [ 10.941824][ T12] worker_thread+0x4f1/0xd60 [ 10.941832][ T12] ? rescuer_thread+0x1340/0x1340 [ 10.941834][ T12] kthread+0x367/0x460 [ 10.941836][ T12] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 10.941840][ T12] ? kthread_affine_preferred+0x4c0/0x4c0 [ 10.941843][ T12] ret_from_fork+0x474/0x6b0 [ 10.941848][ T12] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 10.941852][ T12] ? __switch_to+0x5a3/0xe00 [ 10.941856][ T12] ? kthread_affine_preferred+0x4c0/0x4c0 [ 10.941859][ T12] ret_from_fork_asm+0x11/0x20 [ 10.941870][ T12] [ 11.028634][ T12] ip6_tunnel: gre1 xmit: Local address not yet configured! [ 13.613613][ T268] socat (268) used greatest stack depth: 22336 bytes left [ 13.613636][ T268] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.613639][ T268] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 268, name: socat [ 13.613642][ T268] preempt_count: 2, expected: 0 [ 13.613643][ T268] RCU nest depth: 0, expected: 0 [ 13.613644][ T268] locks held by socat/268: 5, last CPU#0: [ 13.613647][ T268] #0: ffffffff8aa167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.613661][ T268] #1: ffffffff8ab7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.613668][ T268] #2: ffffffff8ab7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.613674][ T268] #3: ffffffff8aa9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.613679][ T268] #4: ffffffff8aa9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 13.613685][ T268] irq event stamp: 129484 [ 13.613687][ T268] hardirqs last enabled at (129483): [] __down_trylock_console_sem+0x86/0xa0 [ 13.613691][ T268] hardirqs last disabled at (129484): [] console_emit_next_record+0x3d4/0x4c0 [ 13.613694][ T268] softirqs last enabled at (129462): [] handle_softirqs+0x67c/0x900 [ 13.613697][ T268] softirqs last disabled at (129453): [] __irq_exit_rcu+0x145/0x1c0 [ 13.613700][ T268] Preemption disabled at: [ 13.613701][ T268] [<0000000000000000>] 0x0 [ 13.613710][ T268] CPU: 0 UID: 0 PID: 268 Comm: socat Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.613714][ T268] Tainted: [W]=WARN [ 13.613715][ T268] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.613717][ T268] Call Trace: [ 13.613719][ T268] [ 13.613722][ T268] dump_stack_lvl+0x6f/0xa0 [ 13.613730][ T268] __might_resched.cold+0x1fe/0x2c1 [ 13.613735][ T268] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.613741][ T268] ? __kmalloc_noprof+0xdb/0x760 [ 13.613748][ T268] __kmalloc_noprof+0x443/0x760 [ 13.613751][ T268] ? alloc_buf.isra.0+0x4b/0x260 [ 13.613761][ T268] ? do_raw_spin_unlock+0x59/0x250 [ 13.613764][ T268] alloc_buf.isra.0+0x4b/0x260 [ 13.613770][ T268] put_chars+0x1e1/0x2f0 [ 13.613773][ T268] ? __send_to_port+0x420/0x420 [ 13.613775][ T268] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 13.613780][ T268] ? validate_chain+0x38b/0xc20 [ 13.613790][ T268] hvc_console_print+0x292/0x780 [ 13.613802][ T268] ? hvc_write+0x3a0/0x3a0 [ 13.613806][ T268] ? rcu_is_watching+0x16/0xd0 [ 13.613809][ T268] ? lock_acquire+0x13c/0x160 [ 13.613815][ T268] console_emit_next_record+0x22f/0x4c0 [ 13.613821][ T268] ? devkmsg_read+0x4b0/0x4b0 [ 13.613824][ T268] ? console_flush_one_record+0x106/0x710 [ 13.613829][ T268] ? rcu_is_watching+0x16/0xd0 [ 13.613832][ T268] ? lock_acquire+0x13c/0x160 [ 13.613839][ T268] console_flush_one_record+0x46f/0x710 [ 13.613845][ T268] ? console_emit_next_record+0x4c0/0x4c0 [ 13.613848][ T268] ? __lock_acquire+0x518/0xc20 [ 13.613857][ T268] console_unlock+0xee/0x1f0 [ 13.613861][ T268] ? console_flush_one_record+0x710/0x710 [ 13.613864][ T268] ? rcu_is_watching+0x16/0xd0 [ 13.613867][ T268] ? lock_acquire+0xe0/0x160 [ 13.613873][ T268] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.613876][ T268] ? vprintk_emit+0x320/0x3e0 [ 13.613880][ T268] vprintk_emit+0x37c/0x3e0 [ 13.613885][ T268] ? wake_up_klogd_work_func+0x90/0x90 [ 13.613887][ T268] ? do_raw_spin_unlock+0x59/0x250 [ 13.613892][ T268] ? __lock_acquire+0x518/0xc20 [ 13.613899][ T268] _printk+0xc7/0x100 [ 13.613903][ T268] ? snapshot_read.cold+0x21/0x21 [ 13.613908][ T268] ? do_raw_spin_lock+0x131/0x280 [ 13.613911][ T268] ? __rwlock_init+0x150/0x150 [ 13.613918][ T268] ? do_raw_spin_lock+0x131/0x280 [ 13.613922][ T268] do_exit.cold+0x82/0x9c [ 13.613927][ T268] ? exit_notify+0x890/0x890 [ 13.613929][ T268] ? __lock_release.isra.0+0x69/0x1a0 [ 13.613933][ T268] ? rcu_is_watching+0x16/0xd0 [ 13.613940][ T268] do_group_exit+0xb8/0x370 [ 13.613944][ T268] __x64_sys_exit_group+0x3c/0x50 [ 13.613947][ T268] x64_sys_call+0x1567/0x1570 [ 13.613950][ T268] do_syscall_64+0xff/0x530 [ 13.613955][ T268] ? exc_page_fault+0xee/0x100 [ 13.613960][ T268] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.613963][ T268] RIP: 0033:0x7f6949e481b8 [ 13.613966][ T268] Code: Unable to access opcode bytes at 0x7f6949e4818e. [ 13.613967][ T268] RSP: 002b:00007ffe7170fbd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 13.613970][ T268] RAX: ffffffffffffffda RBX: 00007f6949f78f88 RCX: 00007f6949e481b8 [ 13.613972][ T268] RDX: 00007f6949d2de88 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 13.613973][ T268] RBP: 00007ffe7170fc30 R08: 0000000000000000 R09: 0000000000004010 [ 13.613975][ T268] R10: 00007ffe7170fa30 R11: 0000000000000246 R12: 0000000000000003 [ 13.613976][ T268] R13: 0000000000000000 R14: 00007f6949f77680 R15: 00007f6949f78fa0 [ 13.613988][ T268] [ 14.112899][ T284] socat (284) used greatest stack depth: 21856 bytes left