[ 38.499634][ T967] mptcp_connect (967) used greatest stack depth: 23600 bytes left [ 38.499654][ T967] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 38.499657][ T967] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 967, name: mptcp_connect [ 38.499658][ T967] preempt_count: 2, expected: 0 [ 38.499659][ T967] RCU nest depth: 0, expected: 0 [ 38.499660][ T967] locks held by mptcp_connect/967: 5, last CPU#1: [ 38.499662][ T967] #0: ffffffffa12267b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 38.499678][ T967] #1: ffffffffa138dcc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 38.499684][ T967] #2: ffffffffa138dd38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 38.499688][ T967] #3: ffffffffa12ad660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 38.499692][ T967] #4: ffffffffa12ad560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 38.499696][ T967] irq event stamp: 228226 [ 38.499697][ T967] hardirqs last enabled at (228225): [] __down_trylock_console_sem+0x86/0xa0 [ 38.499699][ T967] hardirqs last disabled at (228226): [] console_emit_next_record+0x3d4/0x4c0 [ 38.499701][ T967] softirqs last enabled at (222638): [] handle_softirqs+0x67c/0x900 [ 38.499703][ T967] softirqs last disabled at (222629): [] __irq_exit_rcu+0x145/0x1c0 [ 38.499705][ T967] Preemption disabled at: [ 38.499705][ T967] [<0000000000000000>] 0x0 [ 38.499712][ T967] CPU: 1 UID: 0 PID: 967 Comm: mptcp_connect Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 38.499716][ T967] Tainted: [W]=WARN [ 38.499717][ T967] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 38.499719][ T967] Call Trace: [ 38.499720][ T967] [ 38.499722][ T967] dump_stack_lvl+0x6f/0xa0 [ 38.499728][ T967] __might_resched.cold+0x1fe/0x2c1 [ 38.499733][ T967] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 38.499737][ T967] ? __kmalloc_noprof+0xdb/0x760 [ 38.499741][ T967] __kmalloc_noprof+0x443/0x760 [ 38.499744][ T967] ? alloc_buf.isra.0+0x4b/0x260 [ 38.499750][ T967] ? do_raw_spin_unlock+0x59/0x250 [ 38.499753][ T967] alloc_buf.isra.0+0x4b/0x260 [ 38.499756][ T967] put_chars+0x1e1/0x2f0 [ 38.499760][ T967] ? __send_to_port+0x420/0x420 [ 38.499762][ T967] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 38.499766][ T967] ? validate_chain+0x38b/0xc20 [ 38.499771][ T967] hvc_console_print+0x292/0x780 [ 38.499779][ T967] ? hvc_write+0x3a0/0x3a0 [ 38.499781][ T967] ? rcu_is_watching+0x16/0xd0 [ 38.499784][ T967] ? lock_acquire+0x13c/0x160 [ 38.499787][ T967] console_emit_next_record+0x22f/0x4c0 [ 38.499791][ T967] ? devkmsg_read+0x4b0/0x4b0 [ 38.499793][ T967] ? console_flush_one_record+0x106/0x710 [ 38.499796][ T967] ? rcu_is_watching+0x16/0xd0 [ 38.499798][ T967] ? lock_acquire+0x13c/0x160 [ 38.499802][ T967] console_flush_one_record+0x46f/0x710 [ 38.499806][ T967] ? console_emit_next_record+0x4c0/0x4c0 [ 38.499807][ T967] ? __lock_acquire+0x518/0xc20 [ 38.499812][ T967] console_unlock+0xee/0x1f0 [ 38.499815][ T967] ? console_flush_one_record+0x710/0x710 [ 38.499817][ T967] ? rcu_is_watching+0x16/0xd0 [ 38.499819][ T967] ? lock_acquire+0x60/0x160 [ 38.499822][ T967] ? __down_trylock_console_sem+0x5e/0xa0 [ 38.499824][ T967] ? vprintk_emit+0x320/0x3e0 [ 38.499827][ T967] vprintk_emit+0x37c/0x3e0 [ 38.499830][ T967] ? wake_up_klogd_work_func+0x90/0x90 [ 38.499834][ T967] ? __lock_acquire+0x518/0xc20 [ 38.499837][ T967] _printk+0xc7/0x100 [ 38.499841][ T967] ? snapshot_read.cold+0x21/0x21 [ 38.499844][ T967] ? do_raw_spin_lock+0x131/0x280 [ 38.499846][ T967] ? __rwlock_init+0x150/0x150 [ 38.499849][ T967] ? do_raw_spin_lock+0x131/0x280 [ 38.499852][ T967] do_exit.cold+0x82/0x9c [ 38.499856][ T967] ? exit_notify+0x890/0x890 [ 38.499858][ T967] ? __lock_release.isra.0+0x69/0x1a0 [ 38.499860][ T967] ? rcu_is_watching+0x16/0xd0 [ 38.499864][ T967] do_group_exit+0xb8/0x370 [ 38.499868][ T967] __x64_sys_exit_group+0x3c/0x50 [ 38.499870][ T967] x64_sys_call+0x1567/0x1570 [ 38.499872][ T967] do_syscall_64+0xff/0x530 [ 38.499875][ T967] ? exc_page_fault+0xee/0x100 [ 38.499878][ T967] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 38.499881][ T967] RIP: 0033:0x7f339b9021b8 [ 38.499883][ T967] Code: Unable to access opcode bytes at 0x7f339b90218e. [ 38.499884][ T967] RSP: 002b:00007fff72206ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 38.499886][ T967] RAX: ffffffffffffffda RBX: 00007f339ba32f88 RCX: 00007f339b9021b8 [ 38.499888][ T967] RDX: 00007f339b83fa48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 38.499889][ T967] RBP: 00007fff72206d40 R08: 0000000000000000 R09: 0000000000000000 [ 38.499890][ T967] R10: 00007fff72206b80 R11: 0000000000000246 R12: 0000000000000001 [ 38.499890][ T967] R13: 0000000000000000 R14: 00007f339ba31680 R15: 00007f339ba32fa0 [ 38.499897][ T967] [ 44.289139][ T1014] mptcp_connect (1014) used greatest stack depth: 22320 bytes left [ 44.289163][ T1014] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 44.289166][ T1014] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 1014, name: mptcp_connect [ 44.289169][ T1014] preempt_count: 2, expected: 0 [ 44.289170][ T1014] RCU nest depth: 0, expected: 0 [ 44.289172][ T1014] locks held by mptcp_connect/1014: 5, last CPU#3: [ 44.289174][ T1014] #0: ffffffffa12267b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 44.289189][ T1014] #1: ffffffffa138dcc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 44.289197][ T1014] #2: ffffffffa138dd38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 44.289203][ T1014] #3: ffffffffa12ad660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 44.289209][ T1014] #4: ffffffffa12ad560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 44.289215][ T1014] irq event stamp: 348020 [ 44.289216][ T1014] hardirqs last enabled at (348019): [] __down_trylock_console_sem+0x86/0xa0 [ 44.289219][ T1014] hardirqs last disabled at (348020): [] console_emit_next_record+0x3d4/0x4c0 [ 44.289222][ T1014] softirqs last enabled at (347688): [] handle_softirqs+0x67c/0x900 [ 44.289224][ T1014] softirqs last disabled at (347683): [] __irq_exit_rcu+0x145/0x1c0 [ 44.289227][ T1014] Preemption disabled at: [ 44.289228][ T1014] [<0000000000000000>] 0x0 [ 44.289237][ T1014] CPU: 3 UID: 0 PID: 1014 Comm: mptcp_connect Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 44.289242][ T1014] Tainted: [W]=WARN [ 44.289249][ T1014] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 44.289251][ T1014] Call Trace: [ 44.289253][ T1014] [ 44.289256][ T1014] dump_stack_lvl+0x6f/0xa0 [ 44.289264][ T1014] __might_resched.cold+0x1fe/0x2c1 [ 44.289270][ T1014] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 44.289275][ T1014] ? __kmalloc_noprof+0xdb/0x760 [ 44.289282][ T1014] __kmalloc_noprof+0x443/0x760 [ 44.289285][ T1014] ? alloc_buf.isra.0+0x4b/0x260 [ 44.289295][ T1014] ? do_raw_spin_unlock+0x59/0x250 [ 44.289298][ T1014] alloc_buf.isra.0+0x4b/0x260 [ 44.289304][ T1014] put_chars+0x1e1/0x2f0 [ 44.289309][ T1014] ? __send_to_port+0x420/0x420 [ 44.289311][ T1014] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 44.289318][ T1014] ? validate_chain+0x38b/0xc20 [ 44.289327][ T1014] hvc_console_print+0x292/0x780 [ 44.289338][ T1014] ? hvc_write+0x3a0/0x3a0 [ 44.289342][ T1014] ? rcu_is_watching+0x16/0xd0 [ 44.289346][ T1014] ? lock_acquire+0x13c/0x160 [ 44.289353][ T1014] console_emit_next_record+0x22f/0x4c0 [ 44.289359][ T1014] ? devkmsg_read+0x4b0/0x4b0 [ 44.289361][ T1014] ? console_flush_one_record+0x106/0x710 [ 44.289366][ T1014] ? rcu_is_watching+0x16/0xd0 [ 44.289370][ T1014] ? lock_acquire+0x13c/0x160 [ 44.289376][ T1014] console_flush_one_record+0x46f/0x710 [ 44.289383][ T1014] ? console_emit_next_record+0x4c0/0x4c0 [ 44.289385][ T1014] ? __lock_acquire+0x518/0xc20 [ 44.289394][ T1014] console_unlock+0xee/0x1f0 [ 44.289398][ T1014] ? console_flush_one_record+0x710/0x710 [ 44.289401][ T1014] ? rcu_is_watching+0x16/0xd0 [ 44.289404][ T1014] ? lock_acquire+0x60/0x160 [ 44.289410][ T1014] ? __down_trylock_console_sem+0x5e/0xa0 [ 44.289412][ T1014] ? vprintk_emit+0x320/0x3e0 [ 44.289418][ T1014] vprintk_emit+0x37c/0x3e0 [ 44.289424][ T1014] ? wake_up_klogd_work_func+0x90/0x90 [ 44.289429][ T1014] ? __lock_acquire+0x518/0xc20 [ 44.289435][ T1014] _printk+0xc7/0x100 [ 44.289440][ T1014] ? snapshot_read.cold+0x21/0x21 [ 44.289445][ T1014] ? do_raw_spin_lock+0x131/0x280 [ 44.289449][ T1014] ? __rwlock_init+0x150/0x150 [ 44.289455][ T1014] ? do_raw_spin_lock+0x131/0x280 [ 44.289459][ T1014] do_exit.cold+0x82/0x9c [ 44.289464][ T1014] ? exit_notify+0x890/0x890 [ 44.289467][ T1014] ? __lock_release.isra.0+0x69/0x1a0 [ 44.289471][ T1014] ? rcu_is_watching+0x16/0xd0 [ 44.289478][ T1014] do_group_exit+0xb8/0x370 [ 44.289483][ T1014] __x64_sys_exit_group+0x3c/0x50 [ 44.289487][ T1014] x64_sys_call+0x1567/0x1570 [ 44.289489][ T1014] do_syscall_64+0xff/0x530 [ 44.289494][ T1014] ? exc_page_fault+0xee/0x100 [ 44.289498][ T1014] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 44.289502][ T1014] RIP: 0033:0x7f7e2911c1b8 [ 44.289505][ T1014] Code: Unable to access opcode bytes at 0x7f7e2911c18e. [ 44.289507][ T1014] RSP: 002b:00007ffeac6a7ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 44.289510][ T1014] RAX: ffffffffffffffda RBX: 00007f7e2924cf88 RCX: 00007f7e2911c1b8 [ 44.289512][ T1014] RDX: 00007f7e29059a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 44.289514][ T1014] RBP: 00007ffeac6a7d40 R08: 0000000000000000 R09: 0000000000000000 [ 44.289515][ T1014] R10: 00007ffeac6a7b80 R11: 0000000000000246 R12: 0000000000000001 [ 44.289516][ T1014] R13: 0000000000000000 R14: 00007f7e2924b680 R15: 00007f7e2924cfa0 [ 44.289529][ T1014]