[ 12.662347][ T342] grep (342) used greatest stack depth: 24768 bytes left [ 12.662364][ T342] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.662366][ T342] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 342, name: grep [ 12.662368][ T342] preempt_count: 2, expected: 0 [ 12.662368][ T342] RCU nest depth: 0, expected: 0 [ 12.662369][ T342] locks held by grep/342: 5, last CPU#1: [ 12.662372][ T342] #0: ffffffff886267b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.662385][ T342] #1: ffffffff8878dcc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.662390][ T342] #2: ffffffff8878dd38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.662394][ T342] #3: ffffffff886ad660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.662397][ T342] #4: ffffffff886ad560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 12.662401][ T342] irq event stamp: 10628 [ 12.662401][ T342] hardirqs last enabled at (10627): [] __down_trylock_console_sem+0x86/0xa0 [ 12.662403][ T342] hardirqs last disabled at (10628): [] console_emit_next_record+0x3d4/0x4c0 [ 12.662405][ T342] softirqs last enabled at (10090): [] handle_softirqs+0x67c/0x900 [ 12.662407][ T342] softirqs last disabled at (9975): [] __irq_exit_rcu+0x145/0x1c0 [ 12.662409][ T342] Preemption disabled at: [ 12.662410][ T342] [<0000000000000000>] 0x0 [ 12.662417][ T342] CPU: 1 UID: 0 PID: 342 Comm: grep Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.662421][ T342] Tainted: [W]=WARN [ 12.662422][ T342] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.662423][ T342] Call Trace: [ 12.662425][ T342] [ 12.662427][ T342] dump_stack_lvl+0x6f/0xa0 [ 12.662433][ T342] __might_resched.cold+0x1fe/0x2c1 [ 12.662437][ T342] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.662441][ T342] ? __kmalloc_noprof+0xdb/0x760 [ 12.662445][ T342] __kmalloc_noprof+0x443/0x760 [ 12.662448][ T342] ? alloc_buf.isra.0+0x4b/0x260 [ 12.662454][ T342] ? do_raw_spin_unlock+0x59/0x250 [ 12.662456][ T342] alloc_buf.isra.0+0x4b/0x260 [ 12.662460][ T342] put_chars+0x1e1/0x2f0 [ 12.662463][ T342] ? __send_to_port+0x420/0x420 [ 12.662465][ T342] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 12.662469][ T342] ? validate_chain+0x38b/0xc20 [ 12.662474][ T342] hvc_console_print+0x292/0x780 [ 12.662481][ T342] ? hvc_write+0x3a0/0x3a0 [ 12.662484][ T342] ? rcu_is_watching+0x16/0xd0 [ 12.662486][ T342] ? lock_acquire+0x13c/0x160 [ 12.662490][ T342] console_emit_next_record+0x22f/0x4c0 [ 12.662493][ T342] ? devkmsg_read+0x4b0/0x4b0 [ 12.662495][ T342] ? console_flush_one_record+0x106/0x710 [ 12.662498][ T342] ? rcu_is_watching+0x16/0xd0 [ 12.662500][ T342] ? lock_acquire+0x13c/0x160 [ 12.662503][ T342] console_flush_one_record+0x46f/0x710 [ 12.662507][ T342] ? console_emit_next_record+0x4c0/0x4c0 [ 12.662509][ T342] ? __lock_acquire+0x518/0xc20 [ 12.662514][ T342] console_unlock+0xee/0x1f0 [ 12.662516][ T342] ? console_flush_one_record+0x710/0x710 [ 12.662518][ T342] ? rcu_is_watching+0x16/0xd0 [ 12.662520][ T342] ? lock_acquire+0x60/0x160 [ 12.662523][ T342] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.662525][ T342] ? vprintk_emit+0x320/0x3e0 [ 12.662528][ T342] vprintk_emit+0x37c/0x3e0 [ 12.662531][ T342] ? wake_up_klogd_work_func+0x90/0x90 [ 12.662535][ T342] ? __lock_acquire+0x518/0xc20 [ 12.662538][ T342] _printk+0xc7/0x100 [ 12.662542][ T342] ? snapshot_read.cold+0x21/0x21 [ 12.662544][ T342] ? do_raw_spin_lock+0x131/0x280 [ 12.662547][ T342] ? __rwlock_init+0x150/0x150 [ 12.662550][ T342] ? do_raw_spin_lock+0x131/0x280 [ 12.662553][ T342] do_exit.cold+0x82/0x9c [ 12.662557][ T342] ? exit_notify+0x890/0x890 [ 12.662558][ T342] ? __lock_release.isra.0+0x69/0x1a0 [ 12.662561][ T342] ? rcu_is_watching+0x16/0xd0 [ 12.662565][ T342] do_group_exit+0xb8/0x370 [ 12.662568][ T342] __x64_sys_exit_group+0x3c/0x50 [ 12.662570][ T342] x64_sys_call+0x1567/0x1570 [ 12.662572][ T342] do_syscall_64+0xff/0x530 [ 12.662575][ T342] ? exc_page_fault+0xee/0x100 [ 12.662579][ T342] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.662581][ T342] RIP: 0033:0x7fa9328111b8 [ 12.662583][ T342] Code: Unable to access opcode bytes at 0x7fa93281118e. [ 12.662585][ T342] RSP: 002b:00007fff275a8538 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.662587][ T342] RAX: ffffffffffffffda RBX: 00007fa932941f88 RCX: 00007fa9328111b8 [ 12.662589][ T342] RDX: 00007fa93274fe88 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 12.662589][ T342] RBP: 00007fff275a8590 R08: 0000000000000000 R09: 0000000000000000 [ 12.662590][ T342] R10: 00007fff275a83d0 R11: 0000000000000246 R12: 0000000000000002 [ 12.662591][ T342] R13: 0000000000000000 R14: 00007fa932940680 R15: 00007fa932941fa0 [ 12.662598][ T342] [ 20.348134][ T990] mptcp_connect (990) used greatest stack depth: 24528 bytes left [ 20.348154][ T990] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 20.348157][ T990] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 990, name: mptcp_connect [ 20.348159][ T990] preempt_count: 2, expected: 0 [ 20.348159][ T990] RCU nest depth: 0, expected: 0 [ 20.348160][ T990] locks held by mptcp_connect/990: 5, last CPU#0: [ 20.348163][ T990] #0: ffffffff886267b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 20.348176][ T990] #1: ffffffff8878dcc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 20.348181][ T990] #2: ffffffff8878dd38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 20.348185][ T990] #3: ffffffff886ad660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 20.348189][ T990] #4: ffffffff886ad560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 20.348192][ T990] irq event stamp: 35168 [ 20.348193][ T990] hardirqs last enabled at (35167): [] __down_trylock_console_sem+0x86/0xa0 [ 20.348196][ T990] hardirqs last disabled at (35168): [] console_emit_next_record+0x3d4/0x4c0 [ 20.348197][ T990] softirqs last enabled at (32900): [] mptcp_close+0x2d/0x90 [ 20.348201][ T990] softirqs last disabled at (32898): [] release_sock+0x21/0x240 [ 20.348206][ T990] Preemption disabled at: [ 20.348207][ T990] [<0000000000000000>] 0x0 [ 20.348214][ T990] CPU: 0 UID: 0 PID: 990 Comm: mptcp_connect Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 20.348217][ T990] Tainted: [W]=WARN [ 20.348218][ T990] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 20.348220][ T990] Call Trace: [ 20.348222][ T990] [ 20.348224][ T990] dump_stack_lvl+0x6f/0xa0 [ 20.348230][ T990] __might_resched.cold+0x1fe/0x2c1 [ 20.348235][ T990] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 20.348239][ T990] ? __kmalloc_noprof+0xdb/0x760 [ 20.348244][ T990] __kmalloc_noprof+0x443/0x760 [ 20.348246][ T990] ? alloc_buf.isra.0+0x4b/0x260 [ 20.348252][ T990] ? do_raw_spin_unlock+0x59/0x250 [ 20.348255][ T990] alloc_buf.isra.0+0x4b/0x260 [ 20.348258][ T990] put_chars+0x1e1/0x2f0 [ 20.348261][ T990] ? __send_to_port+0x420/0x420 [ 20.348263][ T990] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 20.348268][ T990] ? validate_chain+0x38b/0xc20 [ 20.348273][ T990] hvc_console_print+0x292/0x780 [ 20.348281][ T990] ? hvc_write+0x3a0/0x3a0 [ 20.348283][ T990] ? rcu_is_watching+0x16/0xd0 [ 20.348286][ T990] ? lock_acquire+0x13c/0x160 [ 20.348289][ T990] console_emit_next_record+0x22f/0x4c0 [ 20.348293][ T990] ? devkmsg_read+0x4b0/0x4b0 [ 20.348295][ T990] ? console_flush_one_record+0x106/0x710 [ 20.348298][ T990] ? rcu_is_watching+0x16/0xd0 [ 20.348300][ T990] ? lock_acquire+0x13c/0x160 [ 20.348305][ T990] console_flush_one_record+0x46f/0x710 [ 20.348309][ T990] ? console_emit_next_record+0x4c0/0x4c0 [ 20.348311][ T990] ? __lock_acquire+0x518/0xc20 [ 20.348316][ T990] console_unlock+0xee/0x1f0 [ 20.348319][ T990] ? console_flush_one_record+0x710/0x710 [ 20.348320][ T990] ? rcu_is_watching+0x16/0xd0 [ 20.348322][ T990] ? lock_acquire+0x60/0x160 [ 20.348326][ T990] ? __down_trylock_console_sem+0x5e/0xa0 [ 20.348327][ T990] ? vprintk_emit+0x320/0x3e0 [ 20.348331][ T990] vprintk_emit+0x37c/0x3e0 [ 20.348334][ T990] ? wake_up_klogd_work_func+0x90/0x90 [ 20.348336][ T990] ? do_raw_spin_unlock+0x59/0x250 [ 20.348339][ T990] ? __lock_acquire+0x518/0xc20 [ 20.348342][ T990] _printk+0xc7/0x100 [ 20.348346][ T990] ? snapshot_read.cold+0x21/0x21 [ 20.348349][ T990] ? do_raw_spin_lock+0x131/0x280 [ 20.348351][ T990] ? __rwlock_init+0x150/0x150 [ 20.348355][ T990] ? do_raw_spin_lock+0x131/0x280 [ 20.348357][ T990] do_exit.cold+0x82/0x9c [ 20.348361][ T990] ? exit_notify+0x890/0x890 [ 20.348363][ T990] ? __lock_release.isra.0+0x69/0x1a0 [ 20.348365][ T990] ? rcu_is_watching+0x16/0xd0 [ 20.348369][ T990] do_group_exit+0xb8/0x370 [ 20.348373][ T990] __x64_sys_exit_group+0x3c/0x50 [ 20.348375][ T990] x64_sys_call+0x1567/0x1570 [ 20.348377][ T990] do_syscall_64+0xff/0x530 [ 20.348380][ T990] ? exc_page_fault+0xee/0x100 [ 20.348383][ T990] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 20.348385][ T990] RIP: 0033:0x7f80b244e1b8 [ 20.348388][ T990] Code: Unable to access opcode bytes at 0x7f80b244e18e. [ 20.348389][ T990] RSP: 002b:00007ffd1c552aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 20.348391][ T990] RAX: ffffffffffffffda RBX: 00007f80b257ef88 RCX: 00007f80b244e1b8 [ 20.348393][ T990] RDX: 00007f80b238ba48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 20.348394][ T990] RBP: 00007ffd1c552b00 R08: 0000000000000000 R09: 0000000000000000 [ 20.348395][ T990] R10: 00007ffd1c552940 R11: 0000000000000246 R12: 0000000000000001 [ 20.348395][ T990] R13: 0000000000000000 R14: 00007f80b257d680 R15: 00007f80b257efa0 [ 20.348402][ T990] [ 20.372393][ T782] mptcp_connect (782) used greatest stack depth: 24416 bytes left [ 20.393135][ T804] mptcp_connect (804) used greatest stack depth: 24352 bytes left [ 20.425897][ T711] mptcp_connect (711) used greatest stack depth: 24336 bytes left