[ 9.379018][ T177] ip (177) used greatest stack depth: 23840 bytes left [ 9.379036][ T177] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.379038][ T177] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 177, name: ip [ 9.379040][ T177] preempt_count: 2, expected: 0 [ 9.379041][ T177] RCU nest depth: 0, expected: 0 [ 9.379041][ T177] locks held by ip/177: 5, last CPU#2: [ 9.379044][ T177] #0: ffffffffa2802f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 9.379055][ T177] #1: ffffffffa296a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.379061][ T177] #2: ffffffffa296a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.379064][ T177] #3: ffffffffa2889de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.379067][ T177] #4: ffffffffa2889ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.379071][ T177] irq event stamp: 30282 [ 9.379075][ T177] hardirqs last enabled at (30281): [] __down_trylock_console_sem+0x86/0xa0 [ 9.379078][ T177] hardirqs last disabled at (30282): [] console_emit_next_record+0x3d4/0x4c0 [ 9.379080][ T177] softirqs last enabled at (28638): [] netlink_release+0x17b/0xcf0 [ 9.379084][ T177] softirqs last disabled at (28636): [] netlink_release+0xd2/0xcf0 [ 9.379086][ T177] Preemption disabled at: [ 9.379087][ T177] [<0000000000000000>] 0x0 [ 9.379093][ T177] CPU: 2 UID: 0 PID: 177 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.379097][ T177] Tainted: [W]=WARN [ 9.379098][ T177] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.379100][ T177] Call Trace: [ 9.379101][ T177] [ 9.379103][ T177] dump_stack_lvl+0x6f/0xa0 [ 9.379108][ T177] __might_resched.cold+0x1fe/0x2c1 [ 9.379113][ T177] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.379116][ T177] ? __kmalloc_noprof+0xdb/0x760 [ 9.379121][ T177] __kmalloc_noprof+0x443/0x760 [ 9.379123][ T177] ? alloc_buf.isra.0+0x4b/0x260 [ 9.379129][ T177] ? do_raw_spin_unlock+0x59/0x250 [ 9.379132][ T177] alloc_buf.isra.0+0x4b/0x260 [ 9.379135][ T177] put_chars+0x1e1/0x2f0 [ 9.379138][ T177] ? __send_to_port+0x420/0x420 [ 9.379145][ T177] hvc_console_print+0x292/0x780 [ 9.379152][ T177] ? hvc_write+0x3a0/0x3a0 [ 9.379155][ T177] ? lock_acquire+0x13c/0x160 [ 9.379159][ T177] console_emit_next_record+0x22f/0x4c0 [ 9.379162][ T177] ? devkmsg_read+0x4b0/0x4b0 [ 9.379164][ T177] ? console_flush_one_record+0x106/0x710 [ 9.379166][ T177] ? rcu_is_watching+0x16/0xd0 [ 9.379170][ T177] ? lock_acquire+0x13c/0x160 [ 9.379174][ T177] console_flush_one_record+0x46f/0x710 [ 9.379178][ T177] ? console_emit_next_record+0x4c0/0x4c0 [ 9.379179][ T177] ? __lock_acquire+0x518/0xc20 [ 9.379184][ T177] console_unlock+0xee/0x1f0 [ 9.379187][ T177] ? console_flush_one_record+0x710/0x710 [ 9.379188][ T177] ? rcu_is_watching+0x16/0xd0 [ 9.379190][ T177] ? lock_acquire+0x60/0x160 [ 9.379194][ T177] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.379196][ T177] ? vprintk_emit+0x320/0x3e0 [ 9.379199][ T177] vprintk_emit+0x37c/0x3e0 [ 9.379202][ T177] ? wake_up_klogd_work_func+0x90/0x90 [ 9.379205][ T177] ? __lock_acquire+0x518/0xc20 [ 9.379209][ T177] _printk+0xc7/0x100 [ 9.379212][ T177] ? snapshot_read.cold+0x21/0x21 [ 9.379215][ T177] ? do_raw_spin_lock+0x131/0x280 [ 9.379218][ T177] ? __rwlock_init+0x150/0x150 [ 9.379222][ T177] ? do_raw_spin_lock+0x131/0x280 [ 9.379225][ T177] do_exit.cold+0x82/0x9c [ 9.379229][ T177] ? exit_notify+0x890/0x890 [ 9.379230][ T177] ? __lock_release.isra.0+0x69/0x1a0 [ 9.379233][ T177] ? rcu_is_watching+0x16/0xd0 [ 9.379237][ T177] do_group_exit+0xb8/0x370 [ 9.379240][ T177] __x64_sys_exit_group+0x3c/0x50 [ 9.379242][ T177] x64_sys_call+0x1567/0x1570 [ 9.379245][ T177] do_syscall_64+0x10e/0x570 [ 9.379248][ T177] ? exc_page_fault+0xee/0x100 [ 9.379251][ T177] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.379253][ T177] RIP: 0033:0x7f6c0ccec1b8 [ 9.379256][ T177] Code: Unable to access opcode bytes at 0x7f6c0ccec18e. [ 9.379257][ T177] RSP: 002b:00007ffc72841e48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.379259][ T177] RAX: ffffffffffffffda RBX: 00007f6c0ce1cf88 RCX: 00007f6c0ccec1b8 [ 9.379260][ T177] RDX: 00007f6c0ca36fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.379261][ T177] RBP: 00007ffc72841ea0 R08: 0000000000000000 R09: 0000000000000050 [ 9.379262][ T177] R10: 00007ffc72841c60 R11: 0000000000000246 R12: 0000000000000001 [ 9.379263][ T177] R13: 0000000000000000 R14: 00007f6c0ce1b680 R15: 00007f6c0ce1cfa0 [ 9.379270][ T177] [ 9.571421][ T182] ip (182) used greatest stack depth: 23672 bytes left [ 10.332729][ T221] ip_local_port_range: prefer different parity for start/end values.