[ 10.817970][ T191] ip (191) used greatest stack depth: 24048 bytes left [ 10.817989][ T191] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.817992][ T191] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 191, name: ip [ 10.817994][ T191] preempt_count: 2, expected: 0 [ 10.817996][ T191] RCU nest depth: 0, expected: 0 [ 10.817997][ T191] locks held by ip/191: 5, last CPU#3: [ 10.818000][ T191] #0: ffffffffa3602f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 10.818015][ T191] #1: ffffffffa376a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.818023][ T191] #2: ffffffffa376a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.818028][ T191] #3: ffffffffa3689de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.818034][ T191] #4: ffffffffa3689ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.818039][ T191] irq event stamp: 51278 [ 10.818041][ T191] hardirqs last enabled at (51277): [] __down_trylock_console_sem+0x86/0xa0 [ 10.818045][ T191] hardirqs last disabled at (51278): [] console_emit_next_record+0x3d4/0x4c0 [ 10.818048][ T191] softirqs last enabled at (50802): [] handle_softirqs+0x67c/0x900 [ 10.818051][ T191] softirqs last disabled at (50791): [] __irq_exit_rcu+0x145/0x1c0 [ 10.818055][ T191] Preemption disabled at: [ 10.818056][ T191] [<0000000000000000>] 0x0 [ 10.818064][ T191] CPU: 3 UID: 0 PID: 191 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.818069][ T191] Tainted: [W]=WARN [ 10.818070][ T191] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.818072][ T191] Call Trace: [ 10.818074][ T191] [ 10.818076][ T191] dump_stack_lvl+0x6f/0xa0 [ 10.818084][ T191] __might_resched.cold+0x1fe/0x2c1 [ 10.818090][ T191] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.818095][ T191] ? __kmalloc_noprof+0xdb/0x760 [ 10.818102][ T191] __kmalloc_noprof+0x443/0x760 [ 10.818106][ T191] ? alloc_buf.isra.0+0x4b/0x260 [ 10.818115][ T191] ? do_raw_spin_unlock+0x59/0x250 [ 10.818119][ T191] alloc_buf.isra.0+0x4b/0x260 [ 10.818124][ T191] put_chars+0x1e1/0x2f0 [ 10.818129][ T191] ? __send_to_port+0x420/0x420 [ 10.818141][ T191] hvc_console_print+0x292/0x780 [ 10.818152][ T191] ? hvc_write+0x3a0/0x3a0 [ 10.818157][ T191] ? lock_acquire+0x13c/0x160 [ 10.818164][ T191] console_emit_next_record+0x22f/0x4c0 [ 10.818171][ T191] ? devkmsg_read+0x4b0/0x4b0 [ 10.818173][ T191] ? console_flush_one_record+0x106/0x710 [ 10.818178][ T191] ? rcu_is_watching+0x16/0xd0 [ 10.818183][ T191] ? lock_acquire+0x13c/0x160 [ 10.818190][ T191] console_flush_one_record+0x46f/0x710 [ 10.818196][ T191] ? console_emit_next_record+0x4c0/0x4c0 [ 10.818198][ T191] ? __lock_acquire+0x518/0xc20 [ 10.818208][ T191] console_unlock+0xee/0x1f0 [ 10.818212][ T191] ? console_flush_one_record+0x710/0x710 [ 10.818214][ T191] ? rcu_is_watching+0x16/0xd0 [ 10.818217][ T191] ? lock_acquire+0x60/0x160 [ 10.818224][ T191] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.818227][ T191] ? vprintk_emit+0x320/0x3e0 [ 10.818232][ T191] vprintk_emit+0x37c/0x3e0 [ 10.818237][ T191] ? wake_up_klogd_work_func+0x90/0x90 [ 10.818242][ T191] ? __lock_acquire+0x518/0xc20 [ 10.818249][ T191] _printk+0xc7/0x100 [ 10.818254][ T191] ? snapshot_read.cold+0x21/0x21 [ 10.818258][ T191] ? do_raw_spin_lock+0x131/0x280 [ 10.818263][ T191] ? __rwlock_init+0x150/0x150 [ 10.818270][ T191] ? do_raw_spin_lock+0x131/0x280 [ 10.818274][ T191] do_exit.cold+0x82/0x9c [ 10.818280][ T191] ? exit_notify+0x890/0x890 [ 10.818283][ T191] ? __lock_release.isra.0+0x69/0x1a0 [ 10.818288][ T191] ? rcu_is_watching+0x16/0xd0 [ 10.818294][ T191] do_group_exit+0xb8/0x370 [ 10.818300][ T191] __x64_sys_exit_group+0x3c/0x50 [ 10.818303][ T191] x64_sys_call+0x1567/0x1570 [ 10.818307][ T191] do_syscall_64+0x10e/0x570 [ 10.818311][ T191] ? exc_page_fault+0xee/0x100 [ 10.818316][ T191] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.818319][ T191] RIP: 0033:0x7f33803f51b8 [ 10.818323][ T191] Code: Unable to access opcode bytes at 0x7f33803f518e. [ 10.818324][ T191] RSP: 002b:00007fff5a787f38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.818327][ T191] RAX: ffffffffffffffda RBX: 00007f3380525f88 RCX: 00007f33803f51b8 [ 10.818329][ T191] RDX: 00007f338013ffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.818330][ T191] RBP: 00007fff5a787f90 R08: 0000000000000000 R09: 0000000000000000 [ 10.818332][ T191] R10: 00007fff5a787d50 R11: 0000000000000246 R12: 0000000000000001 [ 10.818333][ T191] R13: 0000000000000000 R14: 00007f3380524680 R15: 00007f3380525fa0 [ 10.818347][ T191]