[ 9.510520][ T187] ip (187) used greatest stack depth: 24256 bytes left [ 9.510537][ T187] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.510539][ T187] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 187, name: ip [ 9.510540][ T187] preempt_count: 2, expected: 0 [ 9.510541][ T187] RCU nest depth: 0, expected: 0 [ 9.510542][ T187] locks held by ip/187: 5, last CPU#0: [ 9.510544][ T187] #0: ffffffff982027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.510558][ T187] #1: ffffffff98369cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.510565][ T187] #2: ffffffff98369d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.510569][ T187] #3: ffffffff98289660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.510573][ T187] #4: ffffffff98289560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.510577][ T187] irq event stamp: 52240 [ 9.510577][ T187] hardirqs last enabled at (52239): [] __down_trylock_console_sem+0x86/0xa0 [ 9.510580][ T187] hardirqs last disabled at (52240): [] console_emit_next_record+0x3d4/0x4c0 [ 9.510582][ T187] softirqs last enabled at (52066): [] handle_softirqs+0x67c/0x900 [ 9.510584][ T187] softirqs last disabled at (52061): [] __irq_exit_rcu+0x145/0x1c0 [ 9.510586][ T187] Preemption disabled at: [ 9.510587][ T187] [<0000000000000000>] 0x0 [ 9.510593][ T187] CPU: 0 UID: 0 PID: 187 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.510597][ T187] Tainted: [W]=WARN [ 9.510597][ T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.510599][ T187] Call Trace: [ 9.510601][ T187] [ 9.510602][ T187] dump_stack_lvl+0x6f/0xa0 [ 9.510609][ T187] __might_resched.cold+0x1fe/0x2c1 [ 9.510614][ T187] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.510623][ T187] ? __kmalloc_noprof+0xdb/0x760 [ 9.510628][ T187] __kmalloc_noprof+0x443/0x760 [ 9.510631][ T187] ? alloc_buf.isra.0+0x4b/0x260 [ 9.510637][ T187] ? do_raw_spin_unlock+0x59/0x250 [ 9.510639][ T187] alloc_buf.isra.0+0x4b/0x260 [ 9.510643][ T187] put_chars+0x1e1/0x2f0 [ 9.510645][ T187] ? __send_to_port+0x420/0x420 [ 9.510647][ T187] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.510652][ T187] ? validate_chain+0x38b/0xc20 [ 9.510657][ T187] hvc_console_print+0x292/0x780 [ 9.510663][ T187] ? hvc_write+0x3a0/0x3a0 [ 9.510666][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.510668][ T187] ? lock_acquire+0x13c/0x160 [ 9.510672][ T187] console_emit_next_record+0x22f/0x4c0 [ 9.510676][ T187] ? devkmsg_read+0x4b0/0x4b0 [ 9.510678][ T187] ? console_flush_one_record+0x106/0x710 [ 9.510681][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.510683][ T187] ? lock_acquire+0x13c/0x160 [ 9.510687][ T187] console_flush_one_record+0x46f/0x710 [ 9.510691][ T187] ? console_emit_next_record+0x4c0/0x4c0 [ 9.510693][ T187] ? __lock_acquire+0x518/0xc20 [ 9.510698][ T187] console_unlock+0xee/0x1f0 [ 9.510701][ T187] ? console_flush_one_record+0x710/0x710 [ 9.510703][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.510705][ T187] ? lock_acquire+0x60/0x160 [ 9.510709][ T187] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.510711][ T187] ? vprintk_emit+0x320/0x3e0 [ 9.510714][ T187] vprintk_emit+0x37c/0x3e0 [ 9.510718][ T187] ? wake_up_klogd_work_func+0x90/0x90 [ 9.510722][ T187] ? __lock_acquire+0x518/0xc20 [ 9.510725][ T187] _printk+0xc7/0x100 [ 9.510729][ T187] ? snapshot_read.cold+0x21/0x21 [ 9.510732][ T187] ? do_raw_spin_lock+0x131/0x280 [ 9.510734][ T187] ? __rwlock_init+0x150/0x150 [ 9.510738][ T187] ? do_raw_spin_lock+0x131/0x280 [ 9.510741][ T187] do_exit.cold+0x82/0x9c [ 9.510744][ T187] ? exit_notify+0x890/0x890 [ 9.510746][ T187] ? __lock_release.isra.0+0x69/0x1a0 [ 9.510749][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.510753][ T187] do_group_exit+0xb8/0x370 [ 9.510756][ T187] __x64_sys_exit_group+0x3c/0x50 [ 9.510758][ T187] x64_sys_call+0x1567/0x1570 [ 9.510760][ T187] do_syscall_64+0xff/0x530 [ 9.510764][ T187] ? exc_page_fault+0xee/0x100 [ 9.510767][ T187] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.510769][ T187] RIP: 0033:0x7f7aff5901b8 [ 9.510771][ T187] Code: Unable to access opcode bytes at 0x7f7aff59018e. [ 9.510772][ T187] RSP: 002b:00007ffd3aced818 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.510775][ T187] RAX: ffffffffffffffda RBX: 00007f7aff6c0f88 RCX: 00007f7aff5901b8 [ 9.510776][ T187] RDX: 00007f7aff2dafc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.510777][ T187] RBP: 00007ffd3aced870 R08: 0000000000000000 R09: 0000000000008010 [ 9.510778][ T187] R10: 00007ffd3aced630 R11: 0000000000000246 R12: 0000000000000001 [ 9.510778][ T187] R13: 0000000000000000 R14: 00007f7aff6bf680 R15: 00007f7aff6c0fa0 [ 9.510785][ T187] [ 10.037761][ T215] 8021q: 802.1Q VLAN Support v1.8 [ 10.256814][ T223] ip (223) used greatest stack depth: 23464 bytes left