[ 9.903790][ T177] ip (177) used greatest stack depth: 23952 bytes left [ 9.903808][ T177] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.903810][ T177] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 177, name: ip [ 9.903811][ T177] preempt_count: 2, expected: 0 [ 9.903812][ T177] RCU nest depth: 0, expected: 0 [ 9.903813][ T177] locks held by ip/177: 5, last CPU#3: [ 9.903815][ T177] #0: ffffffffa6a02f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 9.903827][ T177] #1: ffffffffa6b6a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.903832][ T177] #2: ffffffffa6b6a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.903835][ T177] #3: ffffffffa6a89de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.903838][ T177] #4: ffffffffa6a89ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.903841][ T177] irq event stamp: 25128 [ 9.903842][ T177] hardirqs last enabled at (25127): [] __down_trylock_console_sem+0x86/0xa0 [ 9.903845][ T177] hardirqs last disabled at (25128): [] console_emit_next_record+0x3d4/0x4c0 [ 9.903847][ T177] softirqs last enabled at (24568): [] handle_softirqs+0x67c/0x900 [ 9.903849][ T177] softirqs last disabled at (24563): [] __irq_exit_rcu+0x145/0x1c0 [ 9.903852][ T177] Preemption disabled at: [ 9.903852][ T177] [<0000000000000000>] 0x0 [ 9.903859][ T177] CPU: 3 UID: 0 PID: 177 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.903862][ T177] Tainted: [W]=WARN [ 9.903863][ T177] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.903865][ T177] Call Trace: [ 9.903866][ T177] [ 9.903868][ T177] dump_stack_lvl+0x6f/0xa0 [ 9.903873][ T177] __might_resched.cold+0x1fe/0x2c1 [ 9.903878][ T177] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.903881][ T177] ? __kmalloc_noprof+0xdb/0x760 [ 9.903886][ T177] __kmalloc_noprof+0x443/0x760 [ 9.903888][ T177] ? alloc_buf.isra.0+0x4b/0x260 [ 9.903894][ T177] ? do_raw_spin_unlock+0x59/0x250 [ 9.903898][ T177] alloc_buf.isra.0+0x4b/0x260 [ 9.903901][ T177] put_chars+0x1e1/0x2f0 [ 9.903904][ T177] ? __send_to_port+0x420/0x420 [ 9.903910][ T177] hvc_console_print+0x292/0x780 [ 9.903917][ T177] ? hvc_write+0x3a0/0x3a0 [ 9.903920][ T177] ? lock_acquire+0x13c/0x160 [ 9.903924][ T177] console_emit_next_record+0x22f/0x4c0 [ 9.903928][ T177] ? devkmsg_read+0x4b0/0x4b0 [ 9.903929][ T177] ? console_flush_one_record+0x106/0x710 [ 9.903931][ T177] ? rcu_is_watching+0x16/0xd0 [ 9.903935][ T177] ? lock_acquire+0x13c/0x160 [ 9.903939][ T177] console_flush_one_record+0x46f/0x710 [ 9.903942][ T177] ? console_emit_next_record+0x4c0/0x4c0 [ 9.903944][ T177] ? __lock_acquire+0x518/0xc20 [ 9.903949][ T177] console_unlock+0xee/0x1f0 [ 9.903951][ T177] ? console_flush_one_record+0x710/0x710 [ 9.903952][ T177] ? rcu_is_watching+0x16/0xd0 [ 9.903954][ T177] ? lock_acquire+0x60/0x160 [ 9.903958][ T177] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.903960][ T177] ? vprintk_emit+0x320/0x3e0 [ 9.903963][ T177] vprintk_emit+0x37c/0x3e0 [ 9.903966][ T177] ? wake_up_klogd_work_func+0x90/0x90 [ 9.903969][ T177] ? __lock_acquire+0x518/0xc20 [ 9.903973][ T177] _printk+0xc7/0x100 [ 9.903976][ T177] ? snapshot_read.cold+0x21/0x21 [ 9.903979][ T177] ? do_raw_spin_lock+0x131/0x280 [ 9.903982][ T177] ? __rwlock_init+0x150/0x150 [ 9.903986][ T177] ? do_raw_spin_lock+0x131/0x280 [ 9.903989][ T177] do_exit.cold+0x82/0x9c [ 9.903992][ T177] ? exit_notify+0x890/0x890 [ 9.903994][ T177] ? __lock_release.isra.0+0x69/0x1a0 [ 9.903997][ T177] ? rcu_is_watching+0x16/0xd0 [ 9.904000][ T177] do_group_exit+0xb8/0x370 [ 9.904003][ T177] __x64_sys_exit_group+0x3c/0x50 [ 9.904005][ T177] x64_sys_call+0x1567/0x1570 [ 9.904008][ T177] do_syscall_64+0x10e/0x570 [ 9.904011][ T177] ? exc_page_fault+0xee/0x100 [ 9.904015][ T177] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.904017][ T177] RIP: 0033:0x7f82647681b8 [ 9.904019][ T177] Code: Unable to access opcode bytes at 0x7f826476818e. [ 9.904020][ T177] RSP: 002b:00007ffdc6792a18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.904023][ T177] RAX: ffffffffffffffda RBX: 00007f8264898f88 RCX: 00007f82647681b8 [ 9.904024][ T177] RDX: 00007f82644b2fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.904025][ T177] RBP: 00007ffdc6792a70 R08: 0000000000000000 R09: 0000000000000050 [ 9.904026][ T177] R10: 00007ffdc6792830 R11: 0000000000000246 R12: 0000000000000001 [ 9.904027][ T177] R13: 0000000000000000 R14: 00007f8264897680 R15: 00007f8264898fa0 [ 9.904033][ T177]