[ 11.925638][ T198] packetdrill (198) used greatest stack depth: 24256 bytes left [ 11.925658][ T198] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.925661][ T198] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 198, name: packetdrill [ 11.925663][ T198] preempt_count: 2, expected: 0 [ 11.925665][ T198] RCU nest depth: 0, expected: 0 [ 11.925666][ T198] locks held by packetdrill/198: 5, last CPU#1: [ 11.925669][ T198] #0: ffffffff856027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.925685][ T198] #1: ffffffff85769cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.925691][ T198] #2: ffffffff85769d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.925697][ T198] #3: ffffffff85689660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.925702][ T198] #4: ffffffff85689560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.925708][ T198] irq event stamp: 2202076 [ 11.925710][ T198] hardirqs last enabled at (2202075): [] __down_trylock_console_sem+0x86/0xa0 [ 11.925714][ T198] hardirqs last disabled at (2202076): [] console_emit_next_record+0x3d4/0x4c0 [ 11.925716][ T198] softirqs last enabled at (2201846): [] tcp_close+0x2b/0xb0 [ 11.925722][ T198] softirqs last disabled at (2201844): [] release_sock+0x21/0x240 [ 11.925726][ T198] Preemption disabled at: [ 11.925727][ T198] [<0000000000000000>] 0x0 [ 11.925736][ T198] CPU: 1 UID: 0 PID: 198 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.925741][ T198] Tainted: [W]=WARN [ 11.925742][ T198] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.925744][ T198] Call Trace: [ 11.925746][ T198] [ 11.925749][ T198] dump_stack_lvl+0x6f/0xa0 [ 11.925756][ T198] __might_resched.cold+0x1fe/0x2c1 [ 11.925762][ T198] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.925767][ T198] ? __kmalloc_noprof+0xdb/0x760 [ 11.925774][ T198] __kmalloc_noprof+0x443/0x760 [ 11.925782][ T198] ? alloc_buf.isra.0+0x4b/0x260 [ 11.925791][ T198] ? do_raw_spin_unlock+0x59/0x250 [ 11.925795][ T198] alloc_buf.isra.0+0x4b/0x260 [ 11.925800][ T198] put_chars+0x1e1/0x2f0 [ 11.925805][ T198] ? __send_to_port+0x420/0x420 [ 11.925807][ T198] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.925813][ T198] ? validate_chain+0x38b/0xc20 [ 11.925823][ T198] hvc_console_print+0x292/0x780 [ 11.925834][ T198] ? hvc_write+0x3a0/0x3a0 [ 11.925837][ T198] ? rcu_is_watching+0x16/0xd0 [ 11.925841][ T198] ? lock_acquire+0x13c/0x160 [ 11.925848][ T198] console_emit_next_record+0x22f/0x4c0 [ 11.925854][ T198] ? devkmsg_read+0x4b0/0x4b0 [ 11.925856][ T198] ? console_flush_one_record+0x106/0x710 [ 11.925860][ T198] ? rcu_is_watching+0x16/0xd0 [ 11.925863][ T198] ? lock_acquire+0x13c/0x160 [ 11.925878][ T198] console_flush_one_record+0x46f/0x710 [ 11.925884][ T198] ? console_emit_next_record+0x4c0/0x4c0 [ 11.925886][ T198] ? __lock_acquire+0x518/0xc20 [ 11.925896][ T198] console_unlock+0xee/0x1f0 [ 11.925900][ T198] ? console_flush_one_record+0x710/0x710 [ 11.925902][ T198] ? rcu_is_watching+0x16/0xd0 [ 11.925905][ T198] ? lock_acquire+0x60/0x160 [ 11.925912][ T198] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.925914][ T198] ? vprintk_emit+0x320/0x3e0 [ 11.925920][ T198] vprintk_emit+0x37c/0x3e0 [ 11.925926][ T198] ? wake_up_klogd_work_func+0x90/0x90 [ 11.925928][ T198] ? do_raw_spin_unlock+0x59/0x250 [ 11.925934][ T198] ? __lock_acquire+0x518/0xc20 [ 11.925940][ T198] _printk+0xc7/0x100 [ 11.925945][ T198] ? snapshot_read.cold+0x21/0x21 [ 11.925950][ T198] ? do_raw_spin_lock+0x131/0x280 [ 11.925954][ T198] ? __rwlock_init+0x150/0x150 [ 11.925961][ T198] ? do_raw_spin_lock+0x131/0x280 [ 11.925966][ T198] do_exit.cold+0x82/0x9c [ 11.925971][ T198] ? exit_notify+0x890/0x890 [ 11.925974][ T198] ? __lock_release.isra.0+0x69/0x1a0 [ 11.925978][ T198] ? rcu_is_watching+0x16/0xd0 [ 11.925985][ T198] do_group_exit+0xb8/0x370 [ 11.925990][ T198] __x64_sys_exit_group+0x3c/0x50 [ 11.925993][ T198] x64_sys_call+0x1567/0x1570 [ 11.925997][ T198] do_syscall_64+0xff/0x530 [ 11.926002][ T198] ? irq_exit_rcu+0x1a/0x30 [ 11.926006][ T198] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.926010][ T198] RIP: 0033:0x479678 [ 11.926013][ T198] Code: Unable to access opcode bytes at 0x47964e. [ 11.926015][ T198] RSP: 002b:00007ffde30dbd68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.926018][ T198] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.926020][ T198] RDX: 000000003cc72708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.926021][ T198] RBP: 00007ffde30dbdc0 R08: 0000000000000000 R09: 000000003cc733e0 [ 11.926023][ T198] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffde30dbef8 [ 11.926024][ T198] R13: 00007ffde30dbf80 R14: 0000000000000000 R15: 000000000054d560 [ 11.926037][ T198]