[ 10.811990][ T193] ip (193) used greatest stack depth: 23864 bytes left [ 10.812007][ T193] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.812009][ T193] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 193, name: ip [ 10.812010][ T193] preempt_count: 2, expected: 0 [ 10.812011][ T193] RCU nest depth: 0, expected: 0 [ 10.812012][ T193] locks held by ip/193: 5, last CPU#3: [ 10.812014][ T193] #0: ffffffffa3c167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.812025][ T193] #1: ffffffffa3d7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.812030][ T193] #2: ffffffffa3d7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.812034][ T193] #3: ffffffffa3c9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.812038][ T193] #4: ffffffffa3c9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.812042][ T193] irq event stamp: 17498 [ 10.812042][ T193] hardirqs last enabled at (17497): [] __down_trylock_console_sem+0x86/0xa0 [ 10.812045][ T193] hardirqs last disabled at (17498): [] console_emit_next_record+0x3d4/0x4c0 [ 10.812047][ T193] softirqs last enabled at (17240): [] handle_softirqs+0x67c/0x900 [ 10.812049][ T193] softirqs last disabled at (16243): [] __irq_exit_rcu+0x145/0x1c0 [ 10.812052][ T193] Preemption disabled at: [ 10.812052][ T193] [<0000000000000000>] 0x0 [ 10.812059][ T193] CPU: 3 UID: 0 PID: 193 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.812062][ T193] Tainted: [W]=WARN [ 10.812063][ T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.812065][ T193] Call Trace: [ 10.812066][ T193] [ 10.812068][ T193] dump_stack_lvl+0x6f/0xa0 [ 10.812075][ T193] __might_resched.cold+0x1fe/0x2c1 [ 10.812079][ T193] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.812083][ T193] ? __kmalloc_noprof+0xdb/0x760 [ 10.812087][ T193] __kmalloc_noprof+0x443/0x760 [ 10.812089][ T193] ? alloc_buf.isra.0+0x4b/0x260 [ 10.812096][ T193] ? do_raw_spin_unlock+0x59/0x250 [ 10.812099][ T193] alloc_buf.isra.0+0x4b/0x260 [ 10.812103][ T193] put_chars+0x1e1/0x2f0 [ 10.812105][ T193] ? __send_to_port+0x420/0x420 [ 10.812106][ T193] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.812110][ T193] ? validate_chain+0x38b/0xc20 [ 10.812115][ T193] hvc_console_print+0x292/0x780 [ 10.812122][ T193] ? hvc_write+0x3a0/0x3a0 [ 10.812125][ T193] ? rcu_is_watching+0x16/0xd0 [ 10.812127][ T193] ? lock_acquire+0x13c/0x160 [ 10.812131][ T193] console_emit_next_record+0x22f/0x4c0 [ 10.812135][ T193] ? devkmsg_read+0x4b0/0x4b0 [ 10.812136][ T193] ? console_flush_one_record+0x106/0x710 [ 10.812140][ T193] ? rcu_is_watching+0x16/0xd0 [ 10.812141][ T193] ? lock_acquire+0x13c/0x160 [ 10.812145][ T193] console_flush_one_record+0x46f/0x710 [ 10.812149][ T193] ? console_emit_next_record+0x4c0/0x4c0 [ 10.812151][ T193] ? __lock_acquire+0x518/0xc20 [ 10.812156][ T193] console_unlock+0xee/0x1f0 [ 10.812159][ T193] ? console_flush_one_record+0x710/0x710 [ 10.812161][ T193] ? rcu_is_watching+0x16/0xd0 [ 10.812163][ T193] ? lock_acquire+0xe0/0x160 [ 10.812166][ T193] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.812168][ T193] ? vprintk_emit+0x320/0x3e0 [ 10.812171][ T193] vprintk_emit+0x37c/0x3e0 [ 10.812174][ T193] ? wake_up_klogd_work_func+0x90/0x90 [ 10.812177][ T193] ? __lock_acquire+0x518/0xc20 [ 10.812180][ T193] _printk+0xc7/0x100 [ 10.812184][ T193] ? snapshot_read.cold+0x21/0x21 [ 10.812187][ T193] ? do_raw_spin_lock+0x131/0x280 [ 10.812189][ T193] ? __rwlock_init+0x150/0x150 [ 10.812193][ T193] ? do_raw_spin_lock+0x131/0x280 [ 10.812196][ T193] do_exit.cold+0x82/0x9c [ 10.812199][ T193] ? exit_notify+0x890/0x890 [ 10.812201][ T193] ? __lock_release.isra.0+0x69/0x1a0 [ 10.812203][ T193] ? rcu_is_watching+0x16/0xd0 [ 10.812207][ T193] do_group_exit+0xb8/0x370 [ 10.812210][ T193] __x64_sys_exit_group+0x3c/0x50 [ 10.812211][ T193] x64_sys_call+0x1567/0x1570 [ 10.812214][ T193] do_syscall_64+0xff/0x530 [ 10.812218][ T193] ? exc_page_fault+0xee/0x100 [ 10.812220][ T193] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.812222][ T193] RIP: 0033:0x7fd0950ff1b8 [ 10.812225][ T193] Code: Unable to access opcode bytes at 0x7fd0950ff18e. [ 10.812226][ T193] RSP: 002b:00007ffed1cf83a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.812228][ T193] RAX: ffffffffffffffda RBX: 00007fd09522ff88 RCX: 00007fd0950ff1b8 [ 10.812229][ T193] RDX: 00007fd094e49fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.812230][ T193] RBP: 00007ffed1cf8400 R08: 0000000000000000 R09: 0000000000000050 [ 10.812231][ T193] R10: 00007ffed1cf81c0 R11: 0000000000000246 R12: 0000000000000001 [ 10.812232][ T193] R13: 0000000000000000 R14: 00007fd09522e680 R15: 00007fd09522ffa0 [ 10.812238][ T193]