[ 9.559793][ T176] ip (176) used greatest stack depth: 24600 bytes left [ 9.559808][ T176] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.559810][ T176] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 176, name: ip [ 9.559811][ T176] preempt_count: 2, expected: 0 [ 9.559812][ T176] RCU nest depth: 0, expected: 0 [ 9.559813][ T176] locks held by ip/176: 5, last CPU#0: [ 9.559815][ T176] #0: ffffffffb4a02f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 9.559827][ T176] #1: ffffffffb4b6a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.559832][ T176] #2: ffffffffb4b6a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.559835][ T176] #3: ffffffffb4a89de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.559839][ T176] #4: ffffffffb4a89ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.559842][ T176] irq event stamp: 22882 [ 9.559843][ T176] hardirqs last enabled at (22881): [] __down_trylock_console_sem+0x86/0xa0 [ 9.559846][ T176] hardirqs last disabled at (22882): [] console_emit_next_record+0x3d4/0x4c0 [ 9.559847][ T176] softirqs last enabled at (21420): [] handle_softirqs+0x67c/0x900 [ 9.559850][ T176] softirqs last disabled at (21325): [] __irq_exit_rcu+0x145/0x1c0 [ 9.559852][ T176] Preemption disabled at: [ 9.559853][ T176] [<0000000000000000>] 0x0 [ 9.559859][ T176] CPU: 0 UID: 0 PID: 176 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.559862][ T176] Tainted: [W]=WARN [ 9.559863][ T176] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.559865][ T176] Call Trace: [ 9.559867][ T176] [ 9.559868][ T176] dump_stack_lvl+0x6f/0xa0 [ 9.559873][ T176] __might_resched.cold+0x1fe/0x2c1 [ 9.559878][ T176] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.559881][ T176] ? __kmalloc_noprof+0xdb/0x760 [ 9.559886][ T176] __kmalloc_noprof+0x443/0x760 [ 9.559888][ T176] ? alloc_buf.isra.0+0x4b/0x260 [ 9.559894][ T176] ? do_raw_spin_unlock+0x59/0x250 [ 9.559897][ T176] alloc_buf.isra.0+0x4b/0x260 [ 9.559900][ T176] put_chars+0x1e1/0x2f0 [ 9.559903][ T176] ? __send_to_port+0x420/0x420 [ 9.559909][ T176] hvc_console_print+0x292/0x780 [ 9.559916][ T176] ? hvc_write+0x3a0/0x3a0 [ 9.559919][ T176] ? lock_acquire+0x13c/0x160 [ 9.559923][ T176] console_emit_next_record+0x22f/0x4c0 [ 9.559926][ T176] ? devkmsg_read+0x4b0/0x4b0 [ 9.559928][ T176] ? console_flush_one_record+0x106/0x710 [ 9.559930][ T176] ? rcu_is_watching+0x16/0xd0 [ 9.559934][ T176] ? lock_acquire+0x13c/0x160 [ 9.559938][ T176] console_flush_one_record+0x46f/0x710 [ 9.559941][ T176] ? console_emit_next_record+0x4c0/0x4c0 [ 9.559942][ T176] ? __lock_acquire+0x518/0xc20 [ 9.559948][ T176] console_unlock+0xee/0x1f0 [ 9.559950][ T176] ? console_flush_one_record+0x710/0x710 [ 9.559951][ T176] ? rcu_is_watching+0x16/0xd0 [ 9.559953][ T176] ? lock_acquire+0x60/0x160 [ 9.559957][ T176] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.559959][ T176] ? vprintk_emit+0x320/0x3e0 [ 9.559966][ T176] vprintk_emit+0x37c/0x3e0 [ 9.559969][ T176] ? wake_up_klogd_work_func+0x90/0x90 [ 9.559972][ T176] ? __lock_acquire+0x518/0xc20 [ 9.559976][ T176] _printk+0xc7/0x100 [ 9.559979][ T176] ? snapshot_read.cold+0x21/0x21 [ 9.559982][ T176] ? do_raw_spin_lock+0x131/0x280 [ 9.559985][ T176] ? __rwlock_init+0x150/0x150 [ 9.559989][ T176] ? do_raw_spin_lock+0x131/0x280 [ 9.559991][ T176] do_exit.cold+0x82/0x9c [ 9.559995][ T176] ? exit_notify+0x890/0x890 [ 9.559997][ T176] ? __lock_release.isra.0+0x69/0x1a0 [ 9.560000][ T176] ? rcu_is_watching+0x16/0xd0 [ 9.560003][ T176] do_group_exit+0xb8/0x370 [ 9.560006][ T176] __x64_sys_exit_group+0x3c/0x50 [ 9.560008][ T176] x64_sys_call+0x1567/0x1570 [ 9.560011][ T176] do_syscall_64+0x10e/0x570 [ 9.560014][ T176] ? exc_page_fault+0xee/0x100 [ 9.560017][ T176] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.560020][ T176] RIP: 0033:0x7f364f6d11b8 [ 9.560022][ T176] Code: Unable to access opcode bytes at 0x7f364f6d118e. [ 9.560023][ T176] RSP: 002b:00007fff692d4c88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.560025][ T176] RAX: ffffffffffffffda RBX: 00007f364f801f88 RCX: 00007f364f6d11b8 [ 9.560027][ T176] RDX: 00007f364f41bfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.560028][ T176] RBP: 00007fff692d4ce0 R08: 0000000000000000 R09: 0000000000000050 [ 9.560029][ T176] R10: 00007fff692d4aa0 R11: 0000000000000246 R12: 0000000000000001 [ 9.560029][ T176] R13: 0000000000000000 R14: 00007f364f800680 R15: 00007f364f801fa0 [ 9.560036][ T176]