[ 31.861314][ T168] bench-lookups_i (168) used greatest stack depth: 24208 bytes left [ 31.861334][ T168] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 31.861336][ T168] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 168, name: bench-lookups_i [ 31.861337][ T168] preempt_count: 2, expected: 0 [ 31.861338][ T168] RCU nest depth: 0, expected: 0 [ 31.861339][ T168] locks held by bench-lookups_i/168: 5, last CPU#3: [ 31.861341][ T168] #0: ffffffffad4127b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 31.861353][ T168] #1: ffffffffad579cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 31.861359][ T168] #2: ffffffffad579d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 31.861363][ T168] #3: ffffffffad499660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 31.861367][ T168] #4: ffffffffad499560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 31.861371][ T168] irq event stamp: 12002250 [ 31.861372][ T168] hardirqs last enabled at (12002249): [] __down_trylock_console_sem+0x86/0xa0 [ 31.861374][ T168] hardirqs last disabled at (12002250): [] console_emit_next_record+0x3d4/0x4c0 [ 31.861376][ T168] softirqs last enabled at (12001984): [] handle_softirqs+0x67c/0x900 [ 31.861379][ T168] softirqs last disabled at (12001935): [] __irq_exit_rcu+0x145/0x1c0 [ 31.861381][ T168] Preemption disabled at: [ 31.861381][ T168] [<0000000000000000>] 0x0 [ 31.861388][ T168] CPU: 3 UID: 0 PID: 168 Comm: bench-lookups_i Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 31.861391][ T168] Tainted: [W]=WARN [ 31.861392][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 31.861394][ T168] Call Trace: [ 31.861396][ T168] [ 31.861397][ T168] dump_stack_lvl+0x6f/0xa0 [ 31.861403][ T168] __might_resched.cold+0x1fe/0x2c1 [ 31.861407][ T168] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 31.861411][ T168] ? __kmalloc_noprof+0xdb/0x760 [ 31.861416][ T168] __kmalloc_noprof+0x443/0x760 [ 31.861419][ T168] ? alloc_buf.isra.0+0x4b/0x260 [ 31.861425][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 31.861428][ T168] alloc_buf.isra.0+0x4b/0x260 [ 31.861431][ T168] put_chars+0x1e1/0x2f0 [ 31.861434][ T168] ? __send_to_port+0x420/0x420 [ 31.861436][ T168] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 31.861441][ T168] ? validate_chain+0x38b/0xc20 [ 31.861446][ T168] hvc_console_print+0x292/0x780 [ 31.861452][ T168] ? hvc_write+0x3a0/0x3a0 [ 31.861454][ T168] ? rcu_is_watching+0x16/0xd0 [ 31.861457][ T168] ? lock_acquire+0x13c/0x160 [ 31.861461][ T168] console_emit_next_record+0x22f/0x4c0 [ 31.861465][ T168] ? devkmsg_read+0x4b0/0x4b0 [ 31.861466][ T168] ? console_flush_one_record+0x106/0x710 [ 31.861470][ T168] ? rcu_is_watching+0x16/0xd0 [ 31.861472][ T168] ? lock_acquire+0x13c/0x160 [ 31.861476][ T168] console_flush_one_record+0x46f/0x710 [ 31.861480][ T168] ? console_emit_next_record+0x4c0/0x4c0 [ 31.861482][ T168] ? __lock_acquire+0x518/0xc20 [ 31.861487][ T168] console_unlock+0xee/0x1f0 [ 31.861490][ T168] ? console_flush_one_record+0x710/0x710 [ 31.861491][ T168] ? rcu_is_watching+0x16/0xd0 [ 31.861494][ T168] ? lock_acquire+0x60/0x160 [ 31.861497][ T168] ? __down_trylock_console_sem+0x5e/0xa0 [ 31.861499][ T168] ? vprintk_emit+0x320/0x3e0 [ 31.861502][ T168] vprintk_emit+0x37c/0x3e0 [ 31.861506][ T168] ? wake_up_klogd_work_func+0x90/0x90 [ 31.861509][ T168] ? __lock_acquire+0x518/0xc20 [ 31.861513][ T168] _printk+0xc7/0x100 [ 31.861516][ T168] ? snapshot_read.cold+0x21/0x21 [ 31.861519][ T168] ? do_raw_spin_lock+0x131/0x280 [ 31.861522][ T168] ? __rwlock_init+0x150/0x150 [ 31.861525][ T168] ? do_raw_spin_lock+0x131/0x280 [ 31.861528][ T168] do_exit.cold+0x82/0x9c [ 31.861532][ T168] ? exit_notify+0x890/0x890 [ 31.861533][ T168] ? __lock_release.isra.0+0x69/0x1a0 [ 31.861536][ T168] ? rcu_is_watching+0x16/0xd0 [ 31.861540][ T168] do_group_exit+0xb8/0x370 [ 31.861542][ T168] __x64_sys_exit_group+0x3c/0x50 [ 31.861544][ T168] x64_sys_call+0x1567/0x1570 [ 31.861547][ T168] do_syscall_64+0xff/0x530 [ 31.861551][ T168] ? exc_page_fault+0xee/0x100 [ 31.861554][ T168] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 31.861556][ T168] RIP: 0033:0x7f75860dc1b8 [ 31.861558][ T168] Code: Unable to access opcode bytes at 0x7f75860dc18e. [ 31.861559][ T168] RSP: 002b:00007ffd821a88f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 31.861562][ T168] RAX: ffffffffffffffda RBX: 00007f758620cf88 RCX: 00007f75860dc1b8 [ 31.861563][ T168] RDX: 00007f758601aec8 RSI: ffffffffffffff90 RDI: 0000000000000000 [ 31.861564][ T168] RBP: 00007ffd821a8950 R08: 0000000000000000 R09: 0000000000000000 [ 31.861565][ T168] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000415de0 [ 31.861566][ T168] R13: 0000000000000000 R14: 00007f758620b680 R15: 00007f758620cfa0 [ 31.861572][ T168]