[ 11.760114][ T199] packetdrill (199) used greatest stack depth: 23616 bytes left [ 11.760130][ T199] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.760132][ T199] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 199, name: packetdrill [ 11.760134][ T199] preempt_count: 2, expected: 0 [ 11.760135][ T199] RCU nest depth: 0, expected: 0 [ 11.760136][ T199] locks held by packetdrill/199: 5, last CPU#0: [ 11.760138][ T199] #0: ffffffffa34027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.760151][ T199] #1: ffffffffa3569cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.760156][ T199] #2: ffffffffa3569d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.760159][ T199] #3: ffffffffa3489660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.760163][ T199] #4: ffffffffa3489560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.760166][ T199] irq event stamp: 3917186 [ 11.760167][ T199] hardirqs last enabled at (3917185): [] __down_trylock_console_sem+0x86/0xa0 [ 11.760171][ T199] hardirqs last disabled at (3917186): [] console_emit_next_record+0x3d4/0x4c0 [ 11.760172][ T199] softirqs last enabled at (3916942): [] tcp_close+0x2b/0xb0 [ 11.760177][ T199] softirqs last disabled at (3916940): [] release_sock+0x21/0x240 [ 11.760181][ T199] Preemption disabled at: [ 11.760181][ T199] [<0000000000000000>] 0x0 [ 11.760188][ T199] CPU: 0 UID: 0 PID: 199 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.760192][ T199] Tainted: [W]=WARN [ 11.760193][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.760195][ T199] Call Trace: [ 11.760197][ T199] [ 11.760198][ T199] dump_stack_lvl+0x6f/0xa0 [ 11.760204][ T199] __might_resched.cold+0x1fe/0x2c1 [ 11.760209][ T199] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.760212][ T199] ? __kmalloc_noprof+0xdb/0x760 [ 11.760217][ T199] __kmalloc_noprof+0x443/0x760 [ 11.760220][ T199] ? alloc_buf.isra.0+0x4b/0x260 [ 11.760226][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 11.760229][ T199] alloc_buf.isra.0+0x4b/0x260 [ 11.760233][ T199] put_chars+0x1e1/0x2f0 [ 11.760236][ T199] ? __send_to_port+0x420/0x420 [ 11.760238][ T199] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.760242][ T199] ? validate_chain+0x38b/0xc20 [ 11.760247][ T199] hvc_console_print+0x292/0x780 [ 11.760254][ T199] ? hvc_write+0x3a0/0x3a0 [ 11.760257][ T199] ? rcu_is_watching+0x16/0xd0 [ 11.760259][ T199] ? lock_acquire+0x13c/0x160 [ 11.760263][ T199] console_emit_next_record+0x22f/0x4c0 [ 11.760267][ T199] ? devkmsg_read+0x4b0/0x4b0 [ 11.760268][ T199] ? console_flush_one_record+0x106/0x710 [ 11.760271][ T199] ? rcu_is_watching+0x16/0xd0 [ 11.760272][ T199] ? lock_acquire+0x13c/0x160 [ 11.760277][ T199] console_flush_one_record+0x46f/0x710 [ 11.760280][ T199] ? console_emit_next_record+0x4c0/0x4c0 [ 11.760282][ T199] ? __lock_acquire+0x518/0xc20 [ 11.760287][ T199] console_unlock+0xee/0x1f0 [ 11.760290][ T199] ? console_flush_one_record+0x710/0x710 [ 11.760291][ T199] ? rcu_is_watching+0x16/0xd0 [ 11.760293][ T199] ? lock_acquire+0x60/0x160 [ 11.760297][ T199] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.760299][ T199] ? vprintk_emit+0x320/0x3e0 [ 11.760302][ T199] vprintk_emit+0x37c/0x3e0 [ 11.760305][ T199] ? wake_up_klogd_work_func+0x90/0x90 [ 11.760306][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 11.760310][ T199] ? __lock_acquire+0x518/0xc20 [ 11.760314][ T199] _printk+0xc7/0x100 [ 11.760318][ T199] ? snapshot_read.cold+0x21/0x21 [ 11.760320][ T199] ? do_raw_spin_lock+0x131/0x280 [ 11.760323][ T199] ? __rwlock_init+0x150/0x150 [ 11.760327][ T199] ? do_raw_spin_lock+0x131/0x280 [ 11.760330][ T199] do_exit.cold+0x82/0x9c [ 11.760334][ T199] ? exit_notify+0x890/0x890 [ 11.760335][ T199] ? __lock_release.isra.0+0x69/0x1a0 [ 11.760338][ T199] ? rcu_is_watching+0x16/0xd0 [ 11.760342][ T199] do_group_exit+0xb8/0x370 [ 11.760345][ T199] __x64_sys_exit_group+0x3c/0x50 [ 11.760347][ T199] x64_sys_call+0x1567/0x1570 [ 11.760350][ T199] do_syscall_64+0xff/0x530 [ 11.760354][ T199] ? irq_exit_rcu+0x1a/0x30 [ 11.760357][ T199] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.760360][ T199] RIP: 0033:0x479678 [ 11.760362][ T199] Code: Unable to access opcode bytes at 0x47964e. [ 11.760363][ T199] RSP: 002b:00007ffd8dfaff68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.760366][ T199] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.760367][ T199] RDX: 0000000030795708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.760371][ T199] RBP: 00007ffd8dfaffc0 R08: 0000000000000000 R09: 00000000307963e0 [ 11.760372][ T199] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffd8dfb00f8 [ 11.760373][ T199] R13: 00007ffd8dfb0180 R14: 0000000000000000 R15: 000000000054d560 [ 11.760380][ T199]