[ 9.403740][ T187] ip (187) used greatest stack depth: 23968 bytes left [ 9.403756][ T187] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.403758][ T187] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 187, name: ip [ 9.403759][ T187] preempt_count: 2, expected: 0 [ 9.403760][ T187] RCU nest depth: 0, expected: 0 [ 9.403761][ T187] locks held by ip/187: 5, last CPU#0: [ 9.403763][ T187] #0: ffffffff91e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.403775][ T187] #1: ffffffff91f69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.403780][ T187] #2: ffffffff91f69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.403784][ T187] #3: ffffffff91e89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.403788][ T187] #4: ffffffff91e89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.403791][ T187] irq event stamp: 36436 [ 9.403792][ T187] hardirqs last enabled at (36435): [] __down_trylock_console_sem+0x86/0xa0 [ 9.403795][ T187] hardirqs last disabled at (36436): [] console_emit_next_record+0x3d4/0x4c0 [ 9.403797][ T187] softirqs last enabled at (35730): [] handle_softirqs+0x67c/0x900 [ 9.403798][ T187] softirqs last disabled at (35725): [] __irq_exit_rcu+0x145/0x1c0 [ 9.403801][ T187] Preemption disabled at: [ 9.403801][ T187] [<0000000000000000>] 0x0 [ 9.403807][ T187] CPU: 0 UID: 0 PID: 187 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.403816][ T187] Tainted: [W]=WARN [ 9.403817][ T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.403819][ T187] Call Trace: [ 9.403820][ T187] [ 9.403821][ T187] dump_stack_lvl+0x6f/0xa0 [ 9.403828][ T187] __might_resched.cold+0x1fe/0x2c1 [ 9.403832][ T187] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.403836][ T187] ? __kmalloc_noprof+0xdb/0x760 [ 9.403841][ T187] __kmalloc_noprof+0x443/0x760 [ 9.403843][ T187] ? alloc_buf.isra.0+0x4b/0x260 [ 9.403849][ T187] ? do_raw_spin_unlock+0x59/0x250 [ 9.403852][ T187] alloc_buf.isra.0+0x4b/0x260 [ 9.403855][ T187] put_chars+0x1e1/0x2f0 [ 9.403858][ T187] ? __send_to_port+0x420/0x420 [ 9.403859][ T187] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.403864][ T187] ? validate_chain+0x38b/0xc20 [ 9.403868][ T187] hvc_console_print+0x292/0x780 [ 9.403875][ T187] ? hvc_write+0x3a0/0x3a0 [ 9.403877][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.403879][ T187] ? lock_acquire+0x13c/0x160 [ 9.403883][ T187] console_emit_next_record+0x22f/0x4c0 [ 9.403887][ T187] ? devkmsg_read+0x4b0/0x4b0 [ 9.403888][ T187] ? console_flush_one_record+0x106/0x710 [ 9.403891][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.403894][ T187] ? lock_acquire+0x13c/0x160 [ 9.403897][ T187] console_flush_one_record+0x46f/0x710 [ 9.403902][ T187] ? console_emit_next_record+0x4c0/0x4c0 [ 9.403903][ T187] ? __lock_acquire+0x518/0xc20 [ 9.403908][ T187] console_unlock+0xee/0x1f0 [ 9.403911][ T187] ? console_flush_one_record+0x710/0x710 [ 9.403913][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.403915][ T187] ? lock_acquire+0x60/0x160 [ 9.403919][ T187] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.403920][ T187] ? vprintk_emit+0x320/0x3e0 [ 9.403924][ T187] vprintk_emit+0x37c/0x3e0 [ 9.403927][ T187] ? wake_up_klogd_work_func+0x90/0x90 [ 9.403931][ T187] ? __lock_acquire+0x518/0xc20 [ 9.403934][ T187] _printk+0xc7/0x100 [ 9.403938][ T187] ? snapshot_read.cold+0x21/0x21 [ 9.403941][ T187] ? do_raw_spin_lock+0x131/0x280 [ 9.403943][ T187] ? __rwlock_init+0x150/0x150 [ 9.403947][ T187] ? do_raw_spin_lock+0x131/0x280 [ 9.403949][ T187] do_exit.cold+0x82/0x9c [ 9.403953][ T187] ? exit_notify+0x890/0x890 [ 9.403955][ T187] ? __lock_release.isra.0+0x69/0x1a0 [ 9.403958][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.403962][ T187] do_group_exit+0xb8/0x370 [ 9.403965][ T187] __x64_sys_exit_group+0x3c/0x50 [ 9.403966][ T187] x64_sys_call+0x1567/0x1570 [ 9.403968][ T187] do_syscall_64+0xff/0x530 [ 9.403972][ T187] ? exc_page_fault+0xee/0x100 [ 9.403975][ T187] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.403977][ T187] RIP: 0033:0x7f14814e71b8 [ 9.403979][ T187] Code: Unable to access opcode bytes at 0x7f14814e718e. [ 9.403980][ T187] RSP: 002b:00007fffc2724b28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.403982][ T187] RAX: ffffffffffffffda RBX: 00007f1481617f88 RCX: 00007f14814e71b8 [ 9.403984][ T187] RDX: 00007f1481231fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.403985][ T187] RBP: 00007fffc2724b80 R08: 0000000000000000 R09: 0000000000008010 [ 9.403986][ T187] R10: 00007fffc2724940 R11: 0000000000000246 R12: 0000000000000001 [ 9.403986][ T187] R13: 0000000000000000 R14: 00007f1481616680 R15: 00007f1481617fa0 [ 9.403993][ T187]