[ 28.586670][ T167] bench-lookups_i (167) used greatest stack depth: 24448 bytes left [ 28.586687][ T167] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 28.586689][ T167] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 167, name: bench-lookups_i [ 28.586690][ T167] preempt_count: 2, expected: 0 [ 28.586691][ T167] RCU nest depth: 0, expected: 0 [ 28.586692][ T167] locks held by bench-lookups_i/167: 5, last CPU#2: [ 28.586694][ T167] #0: ffffffff96c127b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 28.586707][ T167] #1: ffffffff96d79cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 28.586713][ T167] #2: ffffffff96d79d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 28.586716][ T167] #3: ffffffff96c99660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 28.586720][ T167] #4: ffffffff96c99560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 28.586724][ T167] irq event stamp: 12020284 [ 28.586725][ T167] hardirqs last enabled at (12020283): [] __down_trylock_console_sem+0x86/0xa0 [ 28.586727][ T167] hardirqs last disabled at (12020284): [] console_emit_next_record+0x3d4/0x4c0 [ 28.586729][ T167] softirqs last enabled at (12019620): [] handle_softirqs+0x67c/0x900 [ 28.586731][ T167] softirqs last disabled at (12019615): [] __irq_exit_rcu+0x145/0x1c0 [ 28.586733][ T167] Preemption disabled at: [ 28.586734][ T167] [<0000000000000000>] 0x0 [ 28.586741][ T167] CPU: 2 UID: 0 PID: 167 Comm: bench-lookups_i Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 28.586744][ T167] Tainted: [W]=WARN [ 28.586745][ T167] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 28.586746][ T167] Call Trace: [ 28.586748][ T167] [ 28.586749][ T167] dump_stack_lvl+0x6f/0xa0 [ 28.586756][ T167] __might_resched.cold+0x1fe/0x2c1 [ 28.586761][ T167] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 28.586765][ T167] ? __kmalloc_noprof+0xdb/0x760 [ 28.586770][ T167] __kmalloc_noprof+0x443/0x760 [ 28.586772][ T167] ? alloc_buf.isra.0+0x4b/0x260 [ 28.586779][ T167] ? do_raw_spin_unlock+0x59/0x250 [ 28.586781][ T167] alloc_buf.isra.0+0x4b/0x260 [ 28.586785][ T167] put_chars+0x1e1/0x2f0 [ 28.586788][ T167] ? __send_to_port+0x420/0x420 [ 28.586789][ T167] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 28.586799][ T167] ? validate_chain+0x38b/0xc20 [ 28.586805][ T167] hvc_console_print+0x292/0x780 [ 28.586812][ T167] ? hvc_write+0x3a0/0x3a0 [ 28.586814][ T167] ? rcu_is_watching+0x16/0xd0 [ 28.586817][ T167] ? lock_acquire+0x13c/0x160 [ 28.586821][ T167] console_emit_next_record+0x22f/0x4c0 [ 28.586825][ T167] ? devkmsg_read+0x4b0/0x4b0 [ 28.586827][ T167] ? console_flush_one_record+0x106/0x710 [ 28.586830][ T167] ? rcu_is_watching+0x16/0xd0 [ 28.586832][ T167] ? lock_acquire+0x13c/0x160 [ 28.586837][ T167] console_flush_one_record+0x46f/0x710 [ 28.586843][ T167] ? console_emit_next_record+0x4c0/0x4c0 [ 28.586845][ T167] ? __lock_acquire+0x518/0xc20 [ 28.586851][ T167] console_unlock+0xee/0x1f0 [ 28.586854][ T167] ? console_flush_one_record+0x710/0x710 [ 28.586856][ T167] ? rcu_is_watching+0x16/0xd0 [ 28.586858][ T167] ? lock_acquire+0x60/0x160 [ 28.586862][ T167] ? __down_trylock_console_sem+0x5e/0xa0 [ 28.586863][ T167] ? vprintk_emit+0x320/0x3e0 [ 28.586867][ T167] vprintk_emit+0x37c/0x3e0 [ 28.586871][ T167] ? wake_up_klogd_work_func+0x90/0x90 [ 28.586874][ T167] ? __lock_acquire+0x518/0xc20 [ 28.586878][ T167] _printk+0xc7/0x100 [ 28.586882][ T167] ? snapshot_read.cold+0x21/0x21 [ 28.586885][ T167] ? do_raw_spin_lock+0x131/0x280 [ 28.586887][ T167] ? __rwlock_init+0x150/0x150 [ 28.586892][ T167] ? do_raw_spin_lock+0x131/0x280 [ 28.586894][ T167] do_exit.cold+0x82/0x9c [ 28.586898][ T167] ? exit_notify+0x890/0x890 [ 28.586900][ T167] ? preempt_schedule_thunk+0x16/0x30 [ 28.586906][ T167] do_group_exit+0xb8/0x370 [ 28.586909][ T167] __x64_sys_exit_group+0x3c/0x50 [ 28.586911][ T167] x64_sys_call+0x1567/0x1570 [ 28.586913][ T167] do_syscall_64+0xff/0x530 [ 28.586916][ T167] ? exc_page_fault+0xee/0x100 [ 28.586919][ T167] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 28.586922][ T167] RIP: 0033:0x7f95f2d691b8 [ 28.586924][ T167] Code: Unable to access opcode bytes at 0x7f95f2d6918e. [ 28.586925][ T167] RSP: 002b:00007ffe12f95ed8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 28.586927][ T167] RAX: ffffffffffffffda RBX: 00007f95f2e99f88 RCX: 00007f95f2d691b8 [ 28.586929][ T167] RDX: 00007f95f2ca7ec8 RSI: ffffffffffffff90 RDI: 0000000000000000 [ 28.586929][ T167] RBP: 00007ffe12f95f30 R08: 0000000000000000 R09: 0000000000000000 [ 28.586930][ T167] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000415de0 [ 28.586931][ T167] R13: 0000000000000000 R14: 00007f95f2e98680 R15: 00007f95f2e99fa0 [ 28.586938][ T167]