[ 9.414065][ T161] which (161) used greatest stack depth: 24496 bytes left [ 9.414086][ T161] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.414088][ T161] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 161, name: which [ 9.414090][ T161] preempt_count: 2, expected: 0 [ 9.414091][ T161] RCU nest depth: 0, expected: 0 [ 9.414092][ T161] locks held by which/161: 5, last CPU#0: [ 9.414094][ T161] #0: ffffffffa74027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.414106][ T161] #1: ffffffffa7569cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.414111][ T161] #2: ffffffffa7569d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.414115][ T161] #3: ffffffffa7489660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.414118][ T161] #4: ffffffffa7489560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.414121][ T161] irq event stamp: 18942 [ 9.414122][ T161] hardirqs last enabled at (18941): [] __down_trylock_console_sem+0x86/0xa0 [ 9.414125][ T161] hardirqs last disabled at (18942): [] console_emit_next_record+0x3d4/0x4c0 [ 9.414127][ T161] softirqs last enabled at (18666): [] handle_softirqs+0x67c/0x900 [ 9.414129][ T161] softirqs last disabled at (17943): [] __irq_exit_rcu+0x145/0x1c0 [ 9.414131][ T161] Preemption disabled at: [ 9.414132][ T161] [<0000000000000000>] 0x0 [ 9.414139][ T161] CPU: 0 UID: 0 PID: 161 Comm: which Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.414143][ T161] Tainted: [W]=WARN [ 9.414144][ T161] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.414146][ T161] Call Trace: [ 9.414147][ T161] [ 9.414149][ T161] dump_stack_lvl+0x6f/0xa0 [ 9.414154][ T161] __might_resched.cold+0x1fe/0x2c1 [ 9.414159][ T161] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.414162][ T161] ? __kmalloc_noprof+0xdb/0x760 [ 9.414167][ T161] __kmalloc_noprof+0x443/0x760 [ 9.414170][ T161] ? alloc_buf.isra.0+0x4b/0x260 [ 9.414176][ T161] ? do_raw_spin_unlock+0x59/0x250 [ 9.414179][ T161] alloc_buf.isra.0+0x4b/0x260 [ 9.414183][ T161] put_chars+0x1e1/0x2f0 [ 9.414186][ T161] ? __send_to_port+0x420/0x420 [ 9.414187][ T161] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.414191][ T161] ? validate_chain+0x38b/0xc20 [ 9.414197][ T161] hvc_console_print+0x292/0x780 [ 9.414203][ T161] ? hvc_write+0x3a0/0x3a0 [ 9.414205][ T161] ? rcu_is_watching+0x16/0xd0 [ 9.414207][ T161] ? lock_acquire+0x13c/0x160 [ 9.414215][ T161] console_emit_next_record+0x22f/0x4c0 [ 9.414219][ T161] ? devkmsg_read+0x4b0/0x4b0 [ 9.414220][ T161] ? console_flush_one_record+0x106/0x710 [ 9.414223][ T161] ? rcu_is_watching+0x16/0xd0 [ 9.414225][ T161] ? lock_acquire+0x13c/0x160 [ 9.414229][ T161] console_flush_one_record+0x46f/0x710 [ 9.414233][ T161] ? console_emit_next_record+0x4c0/0x4c0 [ 9.414235][ T161] ? __lock_acquire+0x518/0xc20 [ 9.414240][ T161] console_unlock+0xee/0x1f0 [ 9.414243][ T161] ? console_flush_one_record+0x710/0x710 [ 9.414244][ T161] ? rcu_is_watching+0x16/0xd0 [ 9.414246][ T161] ? lock_acquire+0x60/0x160 [ 9.414250][ T161] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.414251][ T161] ? vprintk_emit+0x320/0x3e0 [ 9.414254][ T161] vprintk_emit+0x37c/0x3e0 [ 9.414258][ T161] ? wake_up_klogd_work_func+0x90/0x90 [ 9.414261][ T161] ? __lock_acquire+0x518/0xc20 [ 9.414264][ T161] _printk+0xc7/0x100 [ 9.414268][ T161] ? snapshot_read.cold+0x21/0x21 [ 9.414271][ T161] ? do_raw_spin_lock+0x131/0x280 [ 9.414274][ T161] ? __rwlock_init+0x150/0x150 [ 9.414278][ T161] ? do_raw_spin_lock+0x131/0x280 [ 9.414281][ T161] do_exit.cold+0x82/0x9c [ 9.414284][ T161] ? exit_notify+0x890/0x890 [ 9.414286][ T161] ? __lock_release.isra.0+0x69/0x1a0 [ 9.414288][ T161] ? rcu_is_watching+0x16/0xd0 [ 9.414292][ T161] do_group_exit+0xb8/0x370 [ 9.414295][ T161] __x64_sys_exit_group+0x3c/0x50 [ 9.414297][ T161] x64_sys_call+0x1567/0x1570 [ 9.414300][ T161] do_syscall_64+0xff/0x530 [ 9.414304][ T161] ? exc_page_fault+0xee/0x100 [ 9.414307][ T161] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.414310][ T161] RIP: 0033:0x7f084f0ff1b8 [ 9.414312][ T161] Code: Unable to access opcode bytes at 0x7f084f0ff18e. [ 9.414313][ T161] RSP: 002b:00007fffd5f0da88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.414316][ T161] RAX: ffffffffffffffda RBX: 00007f084f22ff88 RCX: 00007f084f0ff1b8 [ 9.414317][ T161] RDX: 00007f084f03ca48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 9.414318][ T161] RBP: 00007fffd5f0dae0 R08: 0000000000000000 R09: 0000000000000040 [ 9.414319][ T161] R10: 00007fffd5f0d920 R11: 0000000000000246 R12: 0000000000000001 [ 9.414320][ T161] R13: 0000000000000000 R14: 00007f084f22e680 R15: 00007f084f22ffa0 [ 9.414327][ T161]