[ 9.866349][ T187] ip (187) used greatest stack depth: 24192 bytes left [ 9.866365][ T187] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.866366][ T187] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 187, name: ip [ 9.866368][ T187] preempt_count: 2, expected: 0 [ 9.866369][ T187] RCU nest depth: 0, expected: 0 [ 9.866370][ T187] locks held by ip/187: 5, last CPU#3: [ 9.866372][ T187] #0: ffffffffa84027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.866384][ T187] #1: ffffffffa8569cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.866390][ T187] #2: ffffffffa8569d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.866394][ T187] #3: ffffffffa8489660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.866398][ T187] #4: ffffffffa8489560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.866402][ T187] irq event stamp: 33720 [ 9.866403][ T187] hardirqs last enabled at (33719): [] __down_trylock_console_sem+0x86/0xa0 [ 9.866405][ T187] hardirqs last disabled at (33720): [] console_emit_next_record+0x3d4/0x4c0 [ 9.866407][ T187] softirqs last enabled at (33520): [] handle_softirqs+0x67c/0x900 [ 9.866409][ T187] softirqs last disabled at (32971): [] __irq_exit_rcu+0x145/0x1c0 [ 9.866411][ T187] Preemption disabled at: [ 9.866412][ T187] [<0000000000000000>] 0x0 [ 9.866418][ T187] CPU: 3 UID: 0 PID: 187 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.866422][ T187] Tainted: [W]=WARN [ 9.866422][ T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.866424][ T187] Call Trace: [ 9.866426][ T187] [ 9.866427][ T187] dump_stack_lvl+0x6f/0xa0 [ 9.866433][ T187] __might_resched.cold+0x1fe/0x2c1 [ 9.866438][ T187] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.866442][ T187] ? __kmalloc_noprof+0xdb/0x760 [ 9.866447][ T187] __kmalloc_noprof+0x443/0x760 [ 9.866449][ T187] ? alloc_buf.isra.0+0x4b/0x260 [ 9.866455][ T187] ? do_raw_spin_unlock+0x59/0x250 [ 9.866458][ T187] alloc_buf.isra.0+0x4b/0x260 [ 9.866461][ T187] put_chars+0x1e1/0x2f0 [ 9.866464][ T187] ? __send_to_port+0x420/0x420 [ 9.866471][ T187] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.866476][ T187] ? validate_chain+0x38b/0xc20 [ 9.866480][ T187] hvc_console_print+0x292/0x780 [ 9.866487][ T187] ? hvc_write+0x3a0/0x3a0 [ 9.866489][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.866491][ T187] ? lock_acquire+0x13c/0x160 [ 9.866495][ T187] console_emit_next_record+0x22f/0x4c0 [ 9.866499][ T187] ? devkmsg_read+0x4b0/0x4b0 [ 9.866501][ T187] ? console_flush_one_record+0x106/0x710 [ 9.866504][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.866506][ T187] ? lock_acquire+0x13c/0x160 [ 9.866510][ T187] console_flush_one_record+0x46f/0x710 [ 9.866514][ T187] ? console_emit_next_record+0x4c0/0x4c0 [ 9.866516][ T187] ? __lock_acquire+0x518/0xc20 [ 9.866521][ T187] console_unlock+0xee/0x1f0 [ 9.866524][ T187] ? console_flush_one_record+0x710/0x710 [ 9.866525][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.866528][ T187] ? lock_acquire+0x60/0x160 [ 9.866531][ T187] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.866533][ T187] ? vprintk_emit+0x320/0x3e0 [ 9.866536][ T187] vprintk_emit+0x37c/0x3e0 [ 9.866540][ T187] ? wake_up_klogd_work_func+0x90/0x90 [ 9.866543][ T187] ? __lock_acquire+0x518/0xc20 [ 9.866547][ T187] _printk+0xc7/0x100 [ 9.866551][ T187] ? snapshot_read.cold+0x21/0x21 [ 9.866553][ T187] ? do_raw_spin_lock+0x131/0x280 [ 9.866556][ T187] ? __rwlock_init+0x150/0x150 [ 9.866559][ T187] ? do_raw_spin_lock+0x131/0x280 [ 9.866562][ T187] do_exit.cold+0x82/0x9c [ 9.866566][ T187] ? exit_notify+0x890/0x890 [ 9.866568][ T187] ? __lock_release.isra.0+0x69/0x1a0 [ 9.866570][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.866574][ T187] do_group_exit+0xb8/0x370 [ 9.866577][ T187] __x64_sys_exit_group+0x3c/0x50 [ 9.866579][ T187] x64_sys_call+0x1567/0x1570 [ 9.866581][ T187] do_syscall_64+0xff/0x530 [ 9.866584][ T187] ? exc_page_fault+0xee/0x100 [ 9.866587][ T187] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.866589][ T187] RIP: 0033:0x7f39d32a71b8 [ 9.866591][ T187] Code: Unable to access opcode bytes at 0x7f39d32a718e. [ 9.866592][ T187] RSP: 002b:00007fff55c10458 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.866595][ T187] RAX: ffffffffffffffda RBX: 00007f39d33d7f88 RCX: 00007f39d32a71b8 [ 9.866596][ T187] RDX: 00007f39d2ff1fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.866597][ T187] RBP: 00007fff55c104b0 R08: 0000000000000000 R09: 0000000000008010 [ 9.866598][ T187] R10: 00007fff55c10270 R11: 0000000000000246 R12: 0000000000000001 [ 9.866599][ T187] R13: 0000000000000000 R14: 00007f39d33d6680 R15: 00007f39d33d7fa0 [ 9.866605][ T187] [ 10.460424][ T215] ip (215) used greatest stack depth: 24128 bytes left