[ 9.580012][ T161] which (161) used greatest stack depth: 24816 bytes left [ 9.580032][ T161] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.580035][ T161] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 161, name: which [ 9.580036][ T161] preempt_count: 2, expected: 0 [ 9.580037][ T161] RCU nest depth: 0, expected: 0 [ 9.580038][ T161] locks held by which/161: 5, last CPU#2: [ 9.580041][ T161] #0: ffffffffbc8027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.580053][ T161] #1: ffffffffbc969cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.580059][ T161] #2: ffffffffbc969d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.580062][ T161] #3: ffffffffbc889660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.580065][ T161] #4: ffffffffbc889560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.580069][ T161] irq event stamp: 8968 [ 9.580070][ T161] hardirqs last enabled at (8967): [] __down_trylock_console_sem+0x86/0xa0 [ 9.580073][ T161] hardirqs last disabled at (8968): [] console_emit_next_record+0x3d4/0x4c0 [ 9.580075][ T161] softirqs last enabled at (7316): [] handle_softirqs+0x67c/0x900 [ 9.580077][ T161] softirqs last disabled at (7305): [] __irq_exit_rcu+0x145/0x1c0 [ 9.580079][ T161] Preemption disabled at: [ 9.580080][ T161] [<0000000000000000>] 0x0 [ 9.580087][ T161] CPU: 2 UID: 0 PID: 161 Comm: which Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.580091][ T161] Tainted: [W]=WARN [ 9.580092][ T161] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.580093][ T161] Call Trace: [ 9.580095][ T161] [ 9.580097][ T161] dump_stack_lvl+0x6f/0xa0 [ 9.580102][ T161] __might_resched.cold+0x1fe/0x2c1 [ 9.580106][ T161] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.580110][ T161] ? __kmalloc_noprof+0xdb/0x760 [ 9.580115][ T161] __kmalloc_noprof+0x443/0x760 [ 9.580118][ T161] ? alloc_buf.isra.0+0x4b/0x260 [ 9.580124][ T161] ? do_raw_spin_unlock+0x59/0x250 [ 9.580127][ T161] alloc_buf.isra.0+0x4b/0x260 [ 9.580131][ T161] put_chars+0x1e1/0x2f0 [ 9.580134][ T161] ? __send_to_port+0x420/0x420 [ 9.580136][ T161] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.580140][ T161] ? validate_chain+0x38b/0xc20 [ 9.580145][ T161] hvc_console_print+0x292/0x780 [ 9.580152][ T161] ? hvc_write+0x3a0/0x3a0 [ 9.580154][ T161] ? rcu_is_watching+0x16/0xd0 [ 9.580156][ T161] ? lock_acquire+0x13c/0x160 [ 9.580161][ T161] console_emit_next_record+0x22f/0x4c0 [ 9.580164][ T161] ? devkmsg_read+0x4b0/0x4b0 [ 9.580165][ T161] ? console_flush_one_record+0x106/0x710 [ 9.580168][ T161] ? rcu_is_watching+0x16/0xd0 [ 9.580170][ T161] ? lock_acquire+0x13c/0x160 [ 9.580174][ T161] console_flush_one_record+0x46f/0x710 [ 9.580178][ T161] ? console_emit_next_record+0x4c0/0x4c0 [ 9.580179][ T161] ? __lock_acquire+0x518/0xc20 [ 9.580185][ T161] console_unlock+0xee/0x1f0 [ 9.580187][ T161] ? console_flush_one_record+0x710/0x710 [ 9.580188][ T161] ? rcu_is_watching+0x16/0xd0 [ 9.580190][ T161] ? lock_acquire+0x60/0x160 [ 9.580194][ T161] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.580196][ T161] ? vprintk_emit+0x320/0x3e0 [ 9.580199][ T161] vprintk_emit+0x37c/0x3e0 [ 9.580202][ T161] ? wake_up_klogd_work_func+0x90/0x90 [ 9.580205][ T161] ? __lock_acquire+0x518/0xc20 [ 9.580209][ T161] _printk+0xc7/0x100 [ 9.580213][ T161] ? snapshot_read.cold+0x21/0x21 [ 9.580216][ T161] ? do_raw_spin_lock+0x131/0x280 [ 9.580218][ T161] ? __rwlock_init+0x150/0x150 [ 9.580222][ T161] ? do_raw_spin_lock+0x131/0x280 [ 9.580225][ T161] do_exit.cold+0x82/0x9c [ 9.580229][ T161] ? exit_notify+0x890/0x890 [ 9.580231][ T161] ? __lock_release.isra.0+0x69/0x1a0 [ 9.580234][ T161] ? rcu_is_watching+0x16/0xd0 [ 9.580237][ T161] do_group_exit+0xb8/0x370 [ 9.580240][ T161] __x64_sys_exit_group+0x3c/0x50 [ 9.580242][ T161] x64_sys_call+0x1567/0x1570 [ 9.580245][ T161] do_syscall_64+0xff/0x530 [ 9.580249][ T161] ? exc_page_fault+0xee/0x100 [ 9.580252][ T161] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.580254][ T161] RIP: 0033:0x7fa33b2781b8 [ 9.580257][ T161] Code: Unable to access opcode bytes at 0x7fa33b27818e. [ 9.580258][ T161] RSP: 002b:00007ffd7031d468 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.580260][ T161] RAX: ffffffffffffffda RBX: 00007fa33b3a8f88 RCX: 00007fa33b2781b8 [ 9.580261][ T161] RDX: 00007fa33b1b5a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 9.580262][ T161] RBP: 00007ffd7031d4c0 R08: 0000000000000000 R09: 0000000000000040 [ 9.580263][ T161] R10: 00007ffd7031d300 R11: 0000000000000246 R12: 0000000000000001 [ 9.580264][ T161] R13: 0000000000000000 R14: 00007fa33b3a7680 R15: 00007fa33b3a8fa0 [ 9.580271][ T161]