[ 17.567075][ T502] mptcp_connect (502) used greatest stack depth: 23808 bytes left [ 17.567093][ T502] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 17.567096][ T502] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 502, name: mptcp_connect [ 17.567097][ T502] preempt_count: 2, expected: 0 [ 17.567098][ T502] RCU nest depth: 0, expected: 0 [ 17.567099][ T502] locks held by mptcp_connect/502: 5, last CPU#1: [ 17.567101][ T502] #0: ffffffff9bc267b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 17.567113][ T502] #1: ffffffff9bd8dcc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 17.567119][ T502] #2: ffffffff9bd8dd38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 17.567123][ T502] #3: ffffffff9bcad660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 17.567126][ T502] #4: ffffffff9bcad560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 17.567130][ T502] irq event stamp: 51226 [ 17.567131][ T502] hardirqs last enabled at (51225): [] __down_trylock_console_sem+0x86/0xa0 [ 17.567133][ T502] hardirqs last disabled at (51226): [] console_emit_next_record+0x3d4/0x4c0 [ 17.567135][ T502] softirqs last enabled at (50616): [] handle_softirqs+0x67c/0x900 [ 17.567137][ T502] softirqs last disabled at (49711): [] __irq_exit_rcu+0x145/0x1c0 [ 17.567139][ T502] Preemption disabled at: [ 17.567139][ T502] [<0000000000000000>] 0x0 [ 17.567146][ T502] CPU: 1 UID: 0 PID: 502 Comm: mptcp_connect Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 17.567150][ T502] Tainted: [W]=WARN [ 17.567151][ T502] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.567152][ T502] Call Trace: [ 17.567154][ T502] [ 17.567155][ T502] dump_stack_lvl+0x6f/0xa0 [ 17.567161][ T502] __might_resched.cold+0x1fe/0x2c1 [ 17.567166][ T502] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 17.567170][ T502] ? __kmalloc_noprof+0xdb/0x760 [ 17.567175][ T502] __kmalloc_noprof+0x443/0x760 [ 17.567177][ T502] ? alloc_buf.isra.0+0x4b/0x260 [ 17.567183][ T502] ? do_raw_spin_unlock+0x59/0x250 [ 17.567186][ T502] alloc_buf.isra.0+0x4b/0x260 [ 17.567190][ T502] put_chars+0x1e1/0x2f0 [ 17.567193][ T502] ? __send_to_port+0x420/0x420 [ 17.567194][ T502] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 17.567199][ T502] ? validate_chain+0x38b/0xc20 [ 17.567204][ T502] hvc_console_print+0x292/0x780 [ 17.567211][ T502] ? hvc_write+0x3a0/0x3a0 [ 17.567214][ T502] ? rcu_is_watching+0x16/0xd0 [ 17.567216][ T502] ? lock_acquire+0x13c/0x160 [ 17.567220][ T502] console_emit_next_record+0x22f/0x4c0 [ 17.567223][ T502] ? devkmsg_read+0x4b0/0x4b0 [ 17.567225][ T502] ? console_flush_one_record+0x106/0x710 [ 17.567228][ T502] ? rcu_is_watching+0x16/0xd0 [ 17.567230][ T502] ? lock_acquire+0x13c/0x160 [ 17.567233][ T502] console_flush_one_record+0x46f/0x710 [ 17.567237][ T502] ? console_emit_next_record+0x4c0/0x4c0 [ 17.567239][ T502] ? __lock_acquire+0x518/0xc20 [ 17.567244][ T502] console_unlock+0xee/0x1f0 [ 17.567246][ T502] ? console_flush_one_record+0x710/0x710 [ 17.567248][ T502] ? rcu_is_watching+0x16/0xd0 [ 17.567250][ T502] ? lock_acquire+0x60/0x160 [ 17.567253][ T502] ? __down_trylock_console_sem+0x5e/0xa0 [ 17.567255][ T502] ? vprintk_emit+0x320/0x3e0 [ 17.567258][ T502] vprintk_emit+0x37c/0x3e0 [ 17.567261][ T502] ? wake_up_klogd_work_func+0x90/0x90 [ 17.567263][ T502] ? do_raw_spin_unlock+0x59/0x250 [ 17.567265][ T502] ? __lock_acquire+0x518/0xc20 [ 17.567269][ T502] _printk+0xc7/0x100 [ 17.567272][ T502] ? snapshot_read.cold+0x21/0x21 [ 17.567275][ T502] ? do_raw_spin_lock+0x131/0x280 [ 17.567278][ T502] ? __rwlock_init+0x150/0x150 [ 17.567281][ T502] ? do_raw_spin_lock+0x131/0x280 [ 17.567283][ T502] do_exit.cold+0x82/0x9c [ 17.567287][ T502] ? exit_notify+0x890/0x890 [ 17.567289][ T502] ? __lock_release.isra.0+0x69/0x1a0 [ 17.567291][ T502] ? rcu_is_watching+0x16/0xd0 [ 17.567295][ T502] do_group_exit+0xb8/0x370 [ 17.567298][ T502] __x64_sys_exit_group+0x3c/0x50 [ 17.567300][ T502] x64_sys_call+0x1567/0x1570 [ 17.567302][ T502] do_syscall_64+0xff/0x530 [ 17.567306][ T502] ? exc_page_fault+0xee/0x100 [ 17.567309][ T502] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.567312][ T502] RIP: 0033:0x7fce8b4271b8 [ 17.567314][ T502] Code: Unable to access opcode bytes at 0x7fce8b42718e. [ 17.567315][ T502] RSP: 002b:00007ffe553134f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 17.567317][ T502] RAX: ffffffffffffffda RBX: 00007fce8b557f88 RCX: 00007fce8b4271b8 [ 17.567319][ T502] RDX: 00007fce8b364a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 17.567319][ T502] RBP: 00007ffe55313550 R08: 0000000000000000 R09: 0000000000000000 [ 17.567320][ T502] R10: 00007ffe55313390 R11: 0000000000000246 R12: 0000000000000001 [ 17.567321][ T502] R13: 0000000000000000 R14: 00007fce8b556680 R15: 00007fce8b557fa0 [ 17.567328][ T502] [ 29.407095][ T920] mptcp_connect (920) used greatest stack depth: 23736 bytes left [ 29.407114][ T920] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 29.407117][ T920] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 920, name: mptcp_connect [ 29.407118][ T920] preempt_count: 2, expected: 0 [ 29.407119][ T920] RCU nest depth: 0, expected: 0 [ 29.407120][ T920] locks held by mptcp_connect/920: 5, last CPU#0: [ 29.407122][ T920] #0: ffffffff9bc267b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 29.407135][ T920] #1: ffffffff9bd8dcc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 29.407140][ T920] #2: ffffffff9bd8dd38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 29.407144][ T920] #3: ffffffff9bcad660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 29.407148][ T920] #4: ffffffff9bcad560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 29.407151][ T920] irq event stamp: 655294 [ 29.407152][ T920] hardirqs last enabled at (655293): [] __down_trylock_console_sem+0x86/0xa0 [ 29.407154][ T920] hardirqs last disabled at (655294): [] console_emit_next_record+0x3d4/0x4c0 [ 29.407156][ T920] softirqs last enabled at (654136): [] handle_softirqs+0x67c/0x900 [ 29.407158][ T920] softirqs last disabled at (654131): [] __irq_exit_rcu+0x145/0x1c0 [ 29.407160][ T920] Preemption disabled at: [ 29.407160][ T920] [<0000000000000000>] 0x0 [ 29.407167][ T920] CPU: 0 UID: 0 PID: 920 Comm: mptcp_connect Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 29.407171][ T920] Tainted: [W]=WARN [ 29.407172][ T920] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 29.407173][ T920] Call Trace: [ 29.407175][ T920] [ 29.407176][ T920] dump_stack_lvl+0x6f/0xa0 [ 29.407182][ T920] __might_resched.cold+0x1fe/0x2c1 [ 29.407186][ T920] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 29.407190][ T920] ? __kmalloc_noprof+0xdb/0x760 [ 29.407195][ T920] __kmalloc_noprof+0x443/0x760 [ 29.407197][ T920] ? alloc_buf.isra.0+0x4b/0x260 [ 29.407203][ T920] ? do_raw_spin_unlock+0x59/0x250 [ 29.407206][ T920] alloc_buf.isra.0+0x4b/0x260 [ 29.407209][ T920] put_chars+0x1e1/0x2f0 [ 29.407212][ T920] ? __send_to_port+0x420/0x420 [ 29.407214][ T920] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 29.407219][ T920] ? validate_chain+0x38b/0xc20 [ 29.407224][ T920] hvc_console_print+0x292/0x780 [ 29.407231][ T920] ? hvc_write+0x3a0/0x3a0 [ 29.407234][ T920] ? rcu_is_watching+0x16/0xd0 [ 29.407236][ T920] ? lock_acquire+0x13c/0x160 [ 29.407239][ T920] console_emit_next_record+0x22f/0x4c0 [ 29.407243][ T920] ? devkmsg_read+0x4b0/0x4b0 [ 29.407244][ T920] ? console_flush_one_record+0x106/0x710 [ 29.407247][ T920] ? rcu_is_watching+0x16/0xd0 [ 29.407249][ T920] ? lock_acquire+0x13c/0x160 [ 29.407253][ T920] console_flush_one_record+0x46f/0x710 [ 29.407257][ T920] ? console_emit_next_record+0x4c0/0x4c0 [ 29.407258][ T920] ? __lock_acquire+0x518/0xc20 [ 29.407263][ T920] console_unlock+0xee/0x1f0 [ 29.407266][ T920] ? console_flush_one_record+0x710/0x710 [ 29.407267][ T920] ? rcu_is_watching+0x16/0xd0 [ 29.407269][ T920] ? lock_acquire+0x60/0x160 [ 29.407273][ T920] ? __down_trylock_console_sem+0x5e/0xa0 [ 29.407274][ T920] ? vprintk_emit+0x320/0x3e0 [ 29.407277][ T920] vprintk_emit+0x37c/0x3e0 [ 29.407281][ T920] ? wake_up_klogd_work_func+0x90/0x90 [ 29.407284][ T920] ? __lock_acquire+0x518/0xc20 [ 29.407287][ T920] _printk+0xc7/0x100 [ 29.407291][ T920] ? snapshot_read.cold+0x21/0x21 [ 29.407293][ T920] ? do_raw_spin_lock+0x131/0x280 [ 29.407296][ T920] ? __rwlock_init+0x150/0x150 [ 29.407299][ T920] ? do_raw_spin_lock+0x131/0x280 [ 29.407301][ T920] do_exit.cold+0x82/0x9c [ 29.407305][ T920] ? exit_notify+0x890/0x890 [ 29.407307][ T920] ? __lock_release.isra.0+0x69/0x1a0 [ 29.407309][ T920] ? rcu_is_watching+0x16/0xd0 [ 29.407313][ T920] do_group_exit+0xb8/0x370 [ 29.407316][ T920] __x64_sys_exit_group+0x3c/0x50 [ 29.407319][ T920] x64_sys_call+0x1567/0x1570 [ 29.407321][ T920] do_syscall_64+0xff/0x530 [ 29.407324][ T920] ? exc_page_fault+0xee/0x100 [ 29.407327][ T920] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 29.407330][ T920] RIP: 0033:0x7fb55d8031b8 [ 29.407332][ T920] Code: Unable to access opcode bytes at 0x7fb55d80318e. [ 29.407333][ T920] RSP: 002b:00007ffc1d681148 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 29.407336][ T920] RAX: ffffffffffffffda RBX: 00007fb55d933f88 RCX: 00007fb55d8031b8 [ 29.407337][ T920] RDX: 00007fb55d740a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 29.407338][ T920] RBP: 00007ffc1d6811a0 R08: 0000000000000000 R09: 0000000000000000 [ 29.407339][ T920] R10: 00007ffc1d680fe0 R11: 0000000000000246 R12: 0000000000000001 [ 29.407340][ T920] R13: 0000000000000000 R14: 00007fb55d932680 R15: 00007fb55d933fa0 [ 29.407346][ T920]