[ 10.940916][ T187] ip (187) used greatest stack depth: 24256 bytes left [ 10.940933][ T187] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.940934][ T187] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 187, name: ip [ 10.940936][ T187] preempt_count: 2, expected: 0 [ 10.940937][ T187] RCU nest depth: 0, expected: 0 [ 10.940938][ T187] locks held by ip/187: 5, last CPU#3: [ 10.940940][ T187] #0: ffffffffb5c027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.940953][ T187] #1: ffffffffb5d69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.940958][ T187] #2: ffffffffb5d69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.940962][ T187] #3: ffffffffb5c89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.940966][ T187] #4: ffffffffb5c89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.940969][ T187] irq event stamp: 30576 [ 10.940970][ T187] hardirqs last enabled at (30575): [] __down_trylock_console_sem+0x86/0xa0 [ 10.940973][ T187] hardirqs last disabled at (30576): [] console_emit_next_record+0x3d4/0x4c0 [ 10.940975][ T187] softirqs last enabled at (29396): [] handle_softirqs+0x67c/0x900 [ 10.940977][ T187] softirqs last disabled at (29389): [] __irq_exit_rcu+0x145/0x1c0 [ 10.940979][ T187] Preemption disabled at: [ 10.940979][ T187] [<0000000000000000>] 0x0 [ 10.940986][ T187] CPU: 3 UID: 0 PID: 187 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.940989][ T187] Tainted: [W]=WARN [ 10.940990][ T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.940992][ T187] Call Trace: [ 10.940994][ T187] [ 10.940995][ T187] dump_stack_lvl+0x6f/0xa0 [ 10.941002][ T187] __might_resched.cold+0x1fe/0x2c1 [ 10.941007][ T187] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.941011][ T187] ? __kmalloc_noprof+0xdb/0x760 [ 10.941016][ T187] __kmalloc_noprof+0x443/0x760 [ 10.941018][ T187] ? alloc_buf.isra.0+0x4b/0x260 [ 10.941024][ T187] ? do_raw_spin_unlock+0x59/0x250 [ 10.941027][ T187] alloc_buf.isra.0+0x4b/0x260 [ 10.941030][ T187] put_chars+0x1e1/0x2f0 [ 10.941033][ T187] ? __send_to_port+0x420/0x420 [ 10.941035][ T187] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.941040][ T187] ? validate_chain+0x38b/0xc20 [ 10.941045][ T187] hvc_console_print+0x292/0x780 [ 10.941051][ T187] ? hvc_write+0x3a0/0x3a0 [ 10.941053][ T187] ? rcu_is_watching+0x16/0xd0 [ 10.941056][ T187] ? lock_acquire+0x13c/0x160 [ 10.941060][ T187] console_emit_next_record+0x22f/0x4c0 [ 10.941064][ T187] ? devkmsg_read+0x4b0/0x4b0 [ 10.941065][ T187] ? console_flush_one_record+0x106/0x710 [ 10.941069][ T187] ? rcu_is_watching+0x16/0xd0 [ 10.941071][ T187] ? lock_acquire+0x13c/0x160 [ 10.941075][ T187] console_flush_one_record+0x46f/0x710 [ 10.941079][ T187] ? console_emit_next_record+0x4c0/0x4c0 [ 10.941081][ T187] ? __lock_acquire+0x518/0xc20 [ 10.941086][ T187] console_unlock+0xee/0x1f0 [ 10.941089][ T187] ? console_flush_one_record+0x710/0x710 [ 10.941091][ T187] ? rcu_is_watching+0x16/0xd0 [ 10.941093][ T187] ? lock_acquire+0x60/0x160 [ 10.941097][ T187] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.941099][ T187] ? vprintk_emit+0x320/0x3e0 [ 10.941102][ T187] vprintk_emit+0x37c/0x3e0 [ 10.941106][ T187] ? wake_up_klogd_work_func+0x90/0x90 [ 10.941109][ T187] ? __lock_acquire+0x518/0xc20 [ 10.941113][ T187] _printk+0xc7/0x100 [ 10.941117][ T187] ? snapshot_read.cold+0x21/0x21 [ 10.941120][ T187] ? do_raw_spin_lock+0x131/0x280 [ 10.941122][ T187] ? __rwlock_init+0x150/0x150 [ 10.941126][ T187] ? do_raw_spin_lock+0x131/0x280 [ 10.941129][ T187] do_exit.cold+0x82/0x9c [ 10.941133][ T187] ? exit_notify+0x890/0x890 [ 10.941135][ T187] ? __lock_release.isra.0+0x69/0x1a0 [ 10.941138][ T187] ? rcu_is_watching+0x16/0xd0 [ 10.941142][ T187] do_group_exit+0xb8/0x370 [ 10.941145][ T187] __x64_sys_exit_group+0x3c/0x50 [ 10.941147][ T187] x64_sys_call+0x1567/0x1570 [ 10.941149][ T187] do_syscall_64+0xff/0x530 [ 10.941152][ T187] ? exc_page_fault+0xee/0x100 [ 10.941155][ T187] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.941157][ T187] RIP: 0033:0x7f680a2231b8 [ 10.941160][ T187] Code: Unable to access opcode bytes at 0x7f680a22318e. [ 10.941161][ T187] RSP: 002b:00007ffef939b528 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.941163][ T187] RAX: ffffffffffffffda RBX: 00007f680a353f88 RCX: 00007f680a2231b8 [ 10.941165][ T187] RDX: 00007f6809f6dfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.941172][ T187] RBP: 00007ffef939b580 R08: 0000000000000000 R09: 0000000000008010 [ 10.941173][ T187] R10: 00007ffef939b340 R11: 0000000000000246 R12: 0000000000000001 [ 10.941174][ T187] R13: 0000000000000000 R14: 00007f680a352680 R15: 00007f680a353fa0 [ 10.941181][ T187]