[ 18.011124][ C0] clocksource: Watchdog remote CPU 2 read timed out [ 18.011161][ C0] [ 18.011163][ C0] ======================================================== [ 18.011164][ C0] WARNING: possible irq lock inversion dependency detected [ 18.011167][ C0] 7.2.0-virtme #1 Tainted: G W [ 18.011168][ C0] -------------------------------------------------------- [ 18.011168][ C0] netperf/310 just changed the state of lock: [ 18.011170][ C0] ffffffff9e49d760 (console_owner){..-.}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 18.011182][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 18.011184][ C0] (fs_reclaim){+.+.}-{0:0} [ 18.011185][ C0] [ 18.011185][ C0] [ 18.011185][ C0] and interrupts could create inverse lock ordering between them. [ 18.011185][ C0] [ 18.011186][ C0] [ 18.011186][ C0] other info that might help us debug this: [ 18.011187][ C0] Possible interrupt unsafe locking scenario: [ 18.011187][ C0] [ 18.011187][ C0] CPU0 CPU1 [ 18.011188][ C0] ---- ---- [ 18.011188][ C0] lock(fs_reclaim); [ 18.011189][ C0] local_irq_disable(); [ 18.011189][ C0] lock(console_owner); [ 18.011190][ C0] lock(fs_reclaim); [ 18.011191][ C0] [ 18.011191][ C0] lock(console_owner); [ 18.011192][ C0] [ 18.011192][ C0] *** DEADLOCK *** [ 18.011192][ C0] [ 18.011193][ C0] locks held by netperf/310: 8, last CPU#0: [ 18.011194][ C0] #0: ff11000010fb5390 (sk_lock-AF_INET){+.+.}-{0:0}, at: tcp_sendmsg+0x20/0x50 [ 18.011200][ C0] #1: ffffffff9e594c00 (rcu_read_lock){....}-{1:3}, at: __ip_queue_xmit+0x63/0x1650 [ 18.011204][ C0] #2: ffffffff9e594c00 (rcu_read_lock){....}-{1:3}, at: ip_output+0xa9/0x660 [ 18.011207][ C0] #3: ffffffff9e594c00 (rcu_read_lock){....}-{1:3}, at: ip_finish_output2+0x2c6/0x1c60 [ 18.011210][ C0] #4: ffa0000000007ca8 ((&watchdog_timer)){+.-.}-{0:0}, at: call_timer_fn+0x110/0x4d0 [ 18.011215][ C0] #5: ffffffff9e5e29f8 (watchdog_lock){+.-.}-{3:3}, at: clocksource_watchdog+0x15/0x30 [ 18.011218][ C0] #6: ffffffff9e57ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 18.011221][ C0] #7: ffffffff9e57de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 18.011224][ C0] [ 18.011224][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 18.011228][ C0] -> (fs_reclaim){+.+.}-{0:0} { [ 18.011230][ C0] HARDIRQ-ON-W at: [ 18.011232][ C0] __lock_acquire+0x388/0xc20 [ 18.011235][ C0] lock_acquire.part.0+0xd4/0x280 [ 18.011236][ C0] fs_reclaim_acquire+0xd5/0x120 [ 18.011240][ C0] __kmalloc_cache_noprof+0x6e/0x620 [ 18.011241][ C0] kthread_create_worker_on_node+0xea/0x210 [ 18.011244][ C0] workqueue_init+0x2a/0x680 [ 18.011249][ C0] kernel_init_freeable+0x2fe/0x630 [ 18.011252][ C0] kernel_init+0x21/0x150 [ 18.011255][ C0] ret_from_fork+0x474/0x6b0 [ 18.011258][ C0] ret_from_fork_asm+0x11/0x20 [ 18.011261][ C0] SOFTIRQ-ON-W at: [ 18.011262][ C0] __lock_acquire+0x388/0xc20 [ 18.011264][ C0] lock_acquire.part.0+0xd4/0x280 [ 18.011265][ C0] fs_reclaim_acquire+0xd5/0x120 [ 18.011266][ C0] __kmalloc_cache_noprof+0x6e/0x620 [ 18.011267][ C0] kthread_create_worker_on_node+0xea/0x210 [ 18.011269][ C0] workqueue_init+0x2a/0x680 [ 18.011270][ C0] kernel_init_freeable+0x2fe/0x630 [ 18.011272][ C0] kernel_init+0x21/0x150 [ 18.011273][ C0] ret_from_fork+0x474/0x6b0 [ 18.011274][ C0] ret_from_fork_asm+0x11/0x20 [ 18.011275][ C0] INITIAL USE at: [ 18.011276][ C0] __lock_acquire+0x388/0xc20 [ 18.011278][ C0] lock_acquire.part.0+0xd4/0x280 [ 18.011279][ C0] fs_reclaim_acquire+0xd5/0x120 [ 18.011281][ C0] __kmalloc_cache_noprof+0x6e/0x620 [ 18.011281][ C0] kthread_create_worker_on_node+0xea/0x210 [ 18.011283][ C0] workqueue_init+0x2a/0x680 [ 18.011284][ C0] kernel_init_freeable+0x2fe/0x630 [ 18.011286][ C0] kernel_init+0x21/0x150 [ 18.011287][ C0] ret_from_fork+0x474/0x6b0 [ 18.011288][ C0] ret_from_fork_asm+0x11/0x20 [ 18.011289][ C0] } [ 18.011290][ C0] ... key at: [] __fs_reclaim_map+0x0/0xbe0 [ 18.011294][ C0] ... acquired at: [ 18.011295][ C0] __lock_acquire+0x518/0xc20 [ 18.011296][ C0] lock_acquire.part.0+0xd4/0x280 [ 18.011298][ C0] fs_reclaim_acquire+0xd5/0x120 [ 18.011299][ C0] __kmalloc_noprof+0xd3/0x760 [ 18.011300][ C0] alloc_buf.isra.0+0x4b/0x260 [ 18.011304][ C0] put_chars+0x1e1/0x2f0 [ 18.011305][ C0] hvc_console_print+0x292/0x780 [ 18.011308][ C0] console_emit_next_record+0x22f/0x4c0 [ 18.011310][ C0] console_flush_one_record+0x46f/0x710 [ 18.011311][ C0] console_unlock+0xee/0x1f0 [ 18.011313][ C0] vprintk_emit+0x37c/0x3e0 [ 18.011314][ C0] dev_vprintk_emit+0x27f/0x2c0 [ 18.011317][ C0] dev_printk_emit+0xb9/0xee [ 18.011318][ C0] _dev_info+0xe2/0x116 [ 18.011319][ C0] __devm_rtc_register_device.cold+0xc3/0x3a8 [ 18.011322][ C0] cmos_do_probe+0x73b/0x98a [ 18.011324][ C0] platform_probe+0xfe/0x1f0 [ 18.011327][ C0] call_driver_probe+0x61/0x1c0 [ 18.011328][ C0] really_probe+0x199/0x760 [ 18.011329][ C0] __driver_probe_device+0x24f/0x440 [ 18.011331][ C0] driver_probe_device+0x4a/0xf0 [ 18.011332][ C0] __driver_attach+0x1b8/0x540 [ 18.011333][ C0] bus_for_each_dev+0x130/0x1e0 [ 18.011335][ C0] bus_add_driver+0x2c8/0x530 [ 18.011336][ C0] driver_register+0x1a3/0x390 [ 18.011337][ C0] __platform_driver_probe+0x13f/0x270 [ 18.011338][ C0] cmos_init+0x31/0x40 [ 18.011341][ C0] do_one_initcall+0x124/0x4f0 [ 18.011342][ C0] kernel_init_freeable+0x596/0x630 [ 18.011344][ C0] kernel_init+0x21/0x150 [ 18.011345][ C0] ret_from_fork+0x474/0x6b0 [ 18.011346][ C0] ret_from_fork_asm+0x11/0x20 [ 18.011348][ C0] [ 18.011348][ C0] -> (console_owner){..-.}-{0:0} { [ 18.011350][ C0] IN-SOFTIRQ-W at: [ 18.011351][ C0] __lock_acquire+0x388/0xc20 [ 18.011352][ C0] lock_acquire.part.0+0xd4/0x280 [ 18.011353][ C0] console_lock_spinning_enable+0x5c/0x60 [ 18.011355][ C0] console_emit_next_record+0x1d1/0x4c0 [ 18.011357][ C0] console_flush_one_record+0x46f/0x710 [ 18.011358][ C0] console_unlock+0xee/0x1f0 [ 18.011360][ C0] vprintk_emit+0x37c/0x3e0 [ 18.011361][ C0] _printk+0xc7/0x100 [ 18.011364][ C0] clocksource_watchdog.part.0.cold+0x105/0x1dd [ 18.011366][ C0] call_timer_fn+0x160/0x4d0 [ 18.011368][ C0] __run_timers+0x68f/0xaa0 [ 18.011369][ C0] run_timer_softirq+0xf0/0x160 [ 18.011371][ C0] handle_softirqs+0x1d3/0x900 [ 18.011373][ C0] do_softirq+0xac/0xe0 [ 18.011375][ C0] __local_bh_enable_ip+0x118/0x150 [ 18.011376][ C0] __dev_queue_xmit+0x989/0x1b90 [ 18.011379][ C0] ip_finish_output2+0x7c4/0x1c60 [ 18.011380][ C0] ip_output+0x1ca/0x660 [ 18.011381][ C0] __ip_queue_xmit+0x774/0x1650 [ 18.011382][ C0] __tcp_transmit_skb+0x1c3e/0x3cd0 [ 18.011384][ C0] tcp_write_xmit+0x5a4/0x3080 [ 18.011386][ C0] tcp_sendmsg_locked+0x94c/0x3df0 [ 18.011387][ C0] tcp_sendmsg+0x2f/0x50 [ 18.011388][ C0] __sock_sendmsg+0xce/0x190 [ 18.011390][ C0] __sys_sendto+0x260/0x320 [ 18.011392][ C0] __x64_sys_sendto+0xe4/0x1f0 [ 18.011394][ C0] do_syscall_64+0xff/0x530 [ 18.011396][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.011398][ C0] INITIAL USE at: [ 18.011399][ C0] } [ 18.011399][ C0] ... key at: [] console_owner_dep_map+0x0/0x60 [ 18.011402][ C0] ... acquired at: [ 18.011402][ C0] mark_lock+0x1d7/0xa00 [ 18.011403][ C0] mark_usage+0x42/0x170 [ 18.011405][ C0] __lock_acquire+0x388/0xc20 [ 18.011406][ C0] lock_acquire.part.0+0xd4/0x280 [ 18.011407][ C0] console_lock_spinning_enable+0x5c/0x60 [ 18.011409][ C0] console_emit_next_record+0x1d1/0x4c0 [ 18.011411][ C0] console_flush_one_record+0x46f/0x710 [ 18.011412][ C0] console_unlock+0xee/0x1f0 [ 18.011414][ C0] vprintk_emit+0x37c/0x3e0 [ 18.011414][ C0] _printk+0xc7/0x100 [ 18.011416][ C0] clocksource_watchdog.part.0.cold+0x105/0x1dd [ 18.011417][ C0] call_timer_fn+0x160/0x4d0 [ 18.011418][ C0] __run_timers+0x68f/0xaa0 [ 18.011420][ C0] run_timer_softirq+0xf0/0x160 [ 18.011421][ C0] handle_softirqs+0x1d3/0x900 [ 18.011422][ C0] do_softirq+0xac/0xe0 [ 18.011424][ C0] __local_bh_enable_ip+0x118/0x150 [ 18.011425][ C0] __dev_queue_xmit+0x989/0x1b90 [ 18.011426][ C0] ip_finish_output2+0x7c4/0x1c60 [ 18.011427][ C0] ip_output+0x1ca/0x660 [ 18.011428][ C0] __ip_queue_xmit+0x774/0x1650 [ 18.011429][ C0] __tcp_transmit_skb+0x1c3e/0x3cd0 [ 18.011431][ C0] tcp_write_xmit+0x5a4/0x3080 [ 18.011432][ C0] tcp_sendmsg_locked+0x94c/0x3df0 [ 18.011433][ C0] tcp_sendmsg+0x2f/0x50 [ 18.011434][ C0] __sock_sendmsg+0xce/0x190 [ 18.011435][ C0] __sys_sendto+0x260/0x320 [ 18.011437][ C0] __x64_sys_sendto+0xe4/0x1f0 [ 18.011438][ C0] do_syscall_64+0xff/0x530 [ 18.011440][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.011441][ C0] [ 18.011441][ C0] [ 18.011441][ C0] stack backtrace: [ 18.011444][ C0] CPU: 0 UID: 0 PID: 310 Comm: netperf Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 18.011447][ C0] Tainted: [W]=WARN [ 18.011448][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.011450][ C0] Call Trace: [ 18.011451][ C0] [ 18.011452][ C0] dump_stack_lvl+0x6f/0xa0 [ 18.011457][ C0] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 18.011459][ C0] mark_lock_irq+0x989/0x9c0 [ 18.011462][ C0] mark_lock+0x1d7/0xa00 [ 18.011464][ C0] mark_usage+0x42/0x170 [ 18.011466][ C0] __lock_acquire+0x388/0xc20 [ 18.011468][ C0] lock_acquire.part.0+0xd4/0x280 [ 18.011470][ C0] ? console_lock_spinning_enable+0x40/0x60 [ 18.011472][ C0] ? rcu_is_watching+0x16/0xd0 [ 18.011474][ C0] ? lock_acquire+0x13c/0x160 [ 18.011476][ C0] console_lock_spinning_enable+0x5c/0x60 [ 18.011478][ C0] ? console_lock_spinning_enable+0x40/0x60 [ 18.011479][ C0] console_emit_next_record+0x1d1/0x4c0 [ 18.011482][ C0] ? devkmsg_read+0x4b0/0x4b0 [ 18.011483][ C0] ? console_flush_one_record+0x106/0x710 [ 18.011485][ C0] ? rcu_is_watching+0x16/0xd0 [ 18.011486][ C0] ? lock_acquire+0x13c/0x160 [ 18.011488][ C0] console_flush_one_record+0x46f/0x710 [ 18.011491][ C0] ? console_emit_next_record+0x4c0/0x4c0 [ 18.011492][ C0] ? __lock_acquire+0x518/0xc20 [ 18.011495][ C0] console_unlock+0xee/0x1f0 [ 18.011497][ C0] ? console_flush_one_record+0x710/0x710 [ 18.011498][ C0] ? rcu_is_watching+0x16/0xd0 [ 18.011499][ C0] ? lock_acquire+0xe0/0x160 [ 18.011501][ C0] ? __down_trylock_console_sem+0x5e/0xa0 [ 18.011503][ C0] ? vprintk_emit+0x320/0x3e0 [ 18.011505][ C0] vprintk_emit+0x37c/0x3e0 [ 18.011506][ C0] ? wake_up_klogd_work_func+0x90/0x90 [ 18.011508][ C0] ? clocksource_watchdog.part.0+0x450/0x540 [ 18.011510][ C0] _printk+0xc7/0x100 [ 18.011511][ C0] ? snapshot_read.cold+0x21/0x21 [ 18.011513][ C0] ? clocksource_watchdog.part.0+0x450/0x540 [ 18.011515][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 18.011517][ C0] clocksource_watchdog.part.0.cold+0x105/0x1dd [ 18.011518][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 18.011520][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 18.011522][ C0] call_timer_fn+0x160/0x4d0 [ 18.011524][ C0] ? detach_if_pending+0x1d0/0x1d0 [ 18.011526][ C0] ? find_held_lock+0x2b/0x80 [ 18.011528][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 18.011530][ C0] ? mark_held_locks+0x40/0x70 [ 18.011532][ C0] __run_timers+0x68f/0xaa0 [ 18.011533][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 18.011536][ C0] ? __bpf_trace_itimer_expire+0x10/0x10 [ 18.011537][ C0] ? __lock_acquire+0x518/0xc20 [ 18.011540][ C0] ? __rwlock_init+0x150/0x150 [ 18.011543][ C0] run_timer_softirq+0xf0/0x160 [ 18.011545][ C0] ? __run_timers+0xaa0/0xaa0 [ 18.011547][ C0] ? rcu_is_watching+0x16/0xd0 [ 18.011548][ C0] handle_softirqs+0x1d3/0x900 [ 18.011550][ C0] ? _local_bh_enable+0xc0/0xc0 [ 18.011551][ C0] ? do_raw_spin_unlock+0x59/0x250 [ 18.011553][ C0] ? rcu_is_watching+0x16/0xd0 [ 18.011554][ C0] ? __dev_queue_xmit+0x974/0x1b90 [ 18.011556][ C0] do_softirq+0xac/0xe0 [ 18.011558][ C0] [ 18.011558][ C0] [ 18.011559][ C0] __local_bh_enable_ip+0x118/0x150 [ 18.011565][ C0] __dev_queue_xmit+0x989/0x1b90 [ 18.011568][ C0] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 18.011570][ C0] ? lock_acquire.part.0+0x60/0x280 [ 18.011571][ C0] ? find_held_lock+0x2b/0x80 [ 18.011573][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 18.011574][ C0] ? rcu_is_watching+0x16/0xd0 [ 18.011576][ C0] ? mark_held_locks+0x40/0x70 [ 18.011577][ C0] ? __asan_memcpy+0x3c/0x60 [ 18.011580][ C0] ? neigh_hh_output+0x152/0x4c0 [ 18.011582][ C0] ip_finish_output2+0x7c4/0x1c60 [ 18.011584][ C0] ? ip_dst_mtu_maybe_forward+0x2c7/0x720 [ 18.011585][ C0] ? lock_acquire.part.0+0xd4/0x280 [ 18.011587][ C0] ? ip_fragment.constprop.0+0x2c0/0x2c0 [ 18.011588][ C0] ? skb_gso_validate_network_len+0x96/0x2a0 [ 18.011592][ C0] ip_output+0x1ca/0x660 [ 18.011593][ C0] ? ip_finish_output+0x460/0x460 [ 18.011594][ C0] ? find_held_lock+0x2b/0x80 [ 18.011596][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 18.011598][ C0] ? ip4_dst_hoplimit+0x15b/0x320 [ 18.011599][ C0] __ip_queue_xmit+0x774/0x1650 [ 18.011601][ C0] __tcp_transmit_skb+0x1c3e/0x3cd0 [ 18.011604][ C0] ? __lock_acquire+0x518/0xc20 [ 18.011606][ C0] ? __tcp_select_window+0x1040/0x1040 [ 18.011608][ C0] ? lock_acquire.part.0+0xd4/0x280 [ 18.011609][ C0] ? find_held_lock+0x2b/0x80 [ 18.011611][ C0] ? kvm_clock_get_cycles+0x19/0x30 [ 18.011614][ C0] tcp_write_xmit+0x5a4/0x3080 [ 18.011617][ C0] ? tcp_retrans_try_collapse+0x1090/0x1090 [ 18.011619][ C0] ? trace_tcp_sendmsg_locked+0x1f0/0x1f0 [ 18.011621][ C0] ? __sk_mem_schedule+0x70/0x100 [ 18.011624][ C0] tcp_sendmsg_locked+0x94c/0x3df0 [ 18.011627][ C0] ? tcp_sendmsg_fastopen+0x630/0x630 [ 18.011629][ C0] ? do_raw_spin_lock+0x131/0x280 [ 18.011630][ C0] ? find_held_lock+0x2b/0x80 [ 18.011632][ C0] ? mark_held_locks+0x40/0x70 [ 18.011634][ C0] tcp_sendmsg+0x2f/0x50 [ 18.011635][ C0] __sock_sendmsg+0xce/0x190 [ 18.011637][ C0] ? fdget+0x4f/0x1e0 [ 18.011640][ C0] __sys_sendto+0x260/0x320 [ 18.011641][ C0] ? __ia32_sys_getpeername+0xd0/0xd0 [ 18.011645][ C0] ? xfd_validate_state+0x2a/0x140 [ 18.011648][ C0] __x64_sys_sendto+0xe4/0x1f0 [ 18.011650][ C0] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 18.011652][ C0] ? lockdep_hardirqs_on+0x91/0x130 [ 18.011654][ C0] ? do_syscall_64+0xa6/0x530 [ 18.011655][ C0] do_syscall_64+0xff/0x530 [ 18.011657][ C0] ? exc_page_fault+0xee/0x100 [ 18.011659][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.011660][ C0] RIP: 0033:0x7faa0c2f454e [ 18.011664][ C0] 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 [ 18.011665][ C0] RSP: 002b:00007ffca001e820 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 18.011668][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faa0c2f454e [ 18.011669][ C0] RDX: 0000000000040000 RSI: 00007faa0c201010 RDI: 0000000000000006 [ 18.011670][ C0] RBP: 00007ffca001e830 R08: 0000000000000000 R09: 0000000000000000 [ 18.011671][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000040000 [ 18.011672][ C0] R13: 00005584c86962d0 R14: 0000000000000006 R15: 0000000000000001 [ 18.011674][ C0] [ 18.011678][ C0] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 18.011679][ C0] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 310, name: netperf [ 18.011681][ C0] preempt_count: 103, expected: 0 [ 18.011681][ C0] RCU nest depth: 3, expected: 0 [ 18.011682][ C0] INFO: lockdep is turned off. [ 18.011682][ C0] irq event stamp: 232703 [ 18.011683][ C0] hardirqs last enabled at (232702): [] __down_trylock_console_sem+0x86/0xa0 [ 18.011685][ C0] hardirqs last disabled at (232703): [] console_emit_next_record+0x3d4/0x4c0 [ 18.011687][ C0] softirqs last enabled at (232684): [] __dev_queue_xmit+0x974/0x1b90 [ 18.011689][ C0] softirqs last disabled at (232685): [] do_softirq+0xac/0xe0 [ 18.011691][ C0] Preemption disabled at: [ 18.011691][ C0] [] __dev_queue_xmit+0x20c/0x1b90 [ 18.011694][ C0] CPU: 0 UID: 0 PID: 310 Comm: netperf Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 18.011696][ C0] Tainted: [W]=WARN [ 18.011696][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.011697][ C0] Call Trace: [ 18.011697][ C0] [ 18.011698][ C0] dump_stack_lvl+0x6f/0xa0 [ 18.011700][ C0] ? __dev_queue_xmit+0x20c/0x1b90 [ 18.011702][ C0] __might_resched.cold+0x1fe/0x2c1 [ 18.011705][ C0] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 18.011708][ C0] ? rcu_is_watching+0x16/0xd0 [ 18.011709][ C0] __kmalloc_noprof+0x443/0x760 [ 18.011710][ C0] ? __rwlock_init+0x150/0x150 [ 18.011712][ C0] ? alloc_buf.isra.0+0x4b/0x260 [ 18.011714][ C0] ? do_raw_spin_unlock+0x59/0x250 [ 18.011716][ C0] alloc_buf.isra.0+0x4b/0x260 [ 18.011719][ C0] put_chars+0x1e1/0x2f0 [ 18.011720][ C0] ? __send_to_port+0x420/0x420 [ 18.011723][ C0] hvc_console_print+0x292/0x780 [ 18.011725][ C0] ? __lock_acquire+0x388/0xc20 [ 18.011727][ C0] ? hvc_write+0x3a0/0x3a0 [ 18.011729][ C0] ? rcu_is_watching+0x16/0xd0 [ 18.011730][ C0] ? lock_acquire+0x13c/0x160 [ 18.011732][ C0] console_emit_next_record+0x22f/0x4c0 [ 18.011735][ C0] ? devkmsg_read+0x4b0/0x4b0 [ 18.011736][ C0] ? console_flush_one_record+0x106/0x710 [ 18.011738][ C0] ? rcu_is_watching+0x16/0xd0 [ 18.011739][ C0] ? lock_acquire+0x13c/0x160 [ 18.011741][ C0] console_flush_one_record+0x46f/0x710 [ 18.011743][ C0] ? console_emit_next_record+0x4c0/0x4c0 [ 18.011745][ C0] ? __lock_acquire+0x518/0xc20 [ 18.011747][ C0] console_unlock+0xee/0x1f0 [ 18.011749][ C0] ? console_flush_one_record+0x710/0x710 [ 18.011751][ C0] ? rcu_is_watching+0x16/0xd0 [ 18.011752][ C0] ? lock_acquire+0xe0/0x160 [ 18.011754][ C0] ? __down_trylock_console_sem+0x5e/0xa0 [ 18.011756][ C0] ? vprintk_emit+0x320/0x3e0 [ 18.011757][ C0] vprintk_emit+0x37c/0x3e0 [ 18.011758][ C0] ? wake_up_klogd_work_func+0x90/0x90 [ 18.011760][ C0] ? clocksource_watchdog.part.0+0x450/0x540 [ 18.011762][ C0] _printk+0xc7/0x100 [ 18.011763][ C0] ? snapshot_read.cold+0x21/0x21 [ 18.011765][ C0] ? clocksource_watchdog.part.0+0x450/0x540 [ 18.011767][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 18.011769][ C0] clocksource_watchdog.part.0.cold+0x105/0x1dd [ 18.011770][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 18.011772][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 18.011774][ C0] call_timer_fn+0x160/0x4d0 [ 18.011776][ C0] ? detach_if_pending+0x1d0/0x1d0 [ 18.011778][ C0] ? find_held_lock+0x2b/0x80 [ 18.011779][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 18.011781][ C0] ? mark_held_locks+0x40/0x70 [ 18.011783][ C0] __run_timers+0x68f/0xaa0 [ 18.011785][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 18.011787][ C0] ? __bpf_trace_itimer_expire+0x10/0x10 [ 18.011788][ C0] ? __lock_acquire+0x518/0xc20 [ 18.011791][ C0] ? __rwlock_init+0x150/0x150 [ 18.011793][ C0] run_timer_softirq+0xf0/0x160 [ 18.011795][ C0] ? __run_timers+0xaa0/0xaa0 [ 18.011797][ C0] ? rcu_is_watching+0x16/0xd0 [ 18.011798][ C0] handle_softirqs+0x1d3/0x900 [ 18.011801][ C0] ? _local_bh_enable+0xc0/0xc0 [ 18.011802][ C0] ? do_raw_spin_unlock+0x59/0x250 [ 18.011804][ C0] ? rcu_is_watching+0x16/0xd0 [ 18.011805][ C0] ? __dev_queue_xmit+0x974/0x1b90 [ 18.011806][ C0] do_softirq+0xac/0xe0 [ 18.011808][ C0] [ 18.011808][ C0] [ 18.011809][ C0] __local_bh_enable_ip+0x118/0x150 [ 18.011811][ C0] __dev_queue_xmit+0x989/0x1b90 [ 18.011813][ C0] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 18.011815][ C0] ? lock_acquire.part.0+0x60/0x280 [ 18.011817][ C0] ? find_held_lock+0x2b/0x80 [ 18.011818][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 18.011819][ C0] ? rcu_is_watching+0x16/0xd0 [ 18.011821][ C0] ? mark_held_locks+0x40/0x70 [ 18.011822][ C0] ? __asan_memcpy+0x3c/0x60 [ 18.011824][ C0] ? neigh_hh_output+0x152/0x4c0 [ 18.011826][ C0] ip_finish_output2+0x7c4/0x1c60 [ 18.011827][ C0] ? ip_dst_mtu_maybe_forward+0x2c7/0x720 [ 18.011828][ C0] ? lock_acquire.part.0+0xd4/0x280 [ 18.011830][ C0] ? ip_fragment.constprop.0+0x2c0/0x2c0 [ 18.011831][ C0] ? skb_gso_validate_network_len+0x96/0x2a0 [ 18.011833][ C0] ip_output+0x1ca/0x660 [ 18.011835][ C0] ? ip_finish_output+0x460/0x460 [ 18.011836][ C0] ? find_held_lock+0x2b/0x80 [ 18.011838][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 18.011839][ C0] ? ip4_dst_hoplimit+0x15b/0x320 [ 18.011841][ C0] __ip_queue_xmit+0x774/0x1650 [ 18.011843][ C0] __tcp_transmit_skb+0x1c3e/0x3cd0 [ 18.011846][ C0] ? __lock_acquire+0x518/0xc20 [ 18.011847][ C0] ? __tcp_select_window+0x1040/0x1040 [ 18.011849][ C0] ? lock_acquire.part.0+0xd4/0x280 [ 18.011851][ C0] ? find_held_lock+0x2b/0x80 [ 18.011853][ C0] ? kvm_clock_get_cycles+0x19/0x30 [ 18.011857][ C0] tcp_write_xmit+0x5a4/0x3080 [ 18.011860][ C0] ? tcp_retrans_try_collapse+0x1090/0x1090 [ 18.011862][ C0] ? trace_tcp_sendmsg_locked+0x1f0/0x1f0 [ 18.011864][ C0] ? __sk_mem_schedule+0x70/0x100 [ 18.011866][ C0] tcp_sendmsg_locked+0x94c/0x3df0 [ 18.011869][ C0] ? tcp_sendmsg_fastopen+0x630/0x630 [ 18.011870][ C0] ? do_raw_spin_lock+0x131/0x280 [ 18.011872][ C0] ? find_held_lock+0x2b/0x80 [ 18.011873][ C0] ? mark_held_locks+0x40/0x70 [ 18.011875][ C0] tcp_sendmsg+0x2f/0x50 [ 18.011877][ C0] __sock_sendmsg+0xce/0x190 [ 18.011878][ C0] ? fdget+0x4f/0x1e0 [ 18.011880][ C0] __sys_sendto+0x260/0x320 [ 18.011882][ C0] ? __ia32_sys_getpeername+0xd0/0xd0 [ 18.011885][ C0] ? xfd_validate_state+0x2a/0x140 [ 18.011888][ C0] __x64_sys_sendto+0xe4/0x1f0 [ 18.011889][ C0] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 18.011891][ C0] ? lockdep_hardirqs_on+0x91/0x130 [ 18.011892][ C0] ? do_syscall_64+0xa6/0x530 [ 18.011894][ C0] do_syscall_64+0xff/0x530 [ 18.011895][ C0] ? exc_page_fault+0xee/0x100 [ 18.011897][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.011898][ C0] RIP: 0033:0x7faa0c2f454e [ 18.011899][ C0] 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 [ 18.011900][ C0] RSP: 002b:00007ffca001e820 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 18.011901][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faa0c2f454e [ 18.011902][ C0] RDX: 0000000000040000 RSI: 00007faa0c201010 RDI: 0000000000000006 [ 18.011903][ C0] RBP: 00007ffca001e830 R08: 0000000000000000 R09: 0000000000000000 [ 18.011903][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000040000 [ 18.011904][ C0] R13: 00005584c86962d0 R14: 0000000000000006 R15: 0000000000000001 [ 18.011906][ C0]