[ 11.108680][ T203] ip (203) used greatest stack depth: 24080 bytes left [ 11.108700][ T203] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.108703][ T203] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 203, name: ip [ 11.108705][ T203] preempt_count: 2, expected: 0 [ 11.108706][ T203] RCU nest depth: 0, expected: 0 [ 11.108707][ T203] locks held by ip/203: 5, last CPU#1: [ 11.108710][ T203] #0: ffffffff888167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.108724][ T203] #1: ffffffff8897ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.108731][ T203] #2: ffffffff8897de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.108737][ T203] #3: ffffffff8889d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.108743][ T203] #4: ffffffff8889d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.108749][ T203] irq event stamp: 28270 [ 11.108751][ T203] hardirqs last enabled at (28269): [] __down_trylock_console_sem+0x86/0xa0 [ 11.108755][ T203] hardirqs last disabled at (28270): [] console_emit_next_record+0x3d4/0x4c0 [ 11.108758][ T203] softirqs last enabled at (27980): [] handle_softirqs+0x67c/0x900 [ 11.108760][ T203] softirqs last disabled at (27975): [] __irq_exit_rcu+0x145/0x1c0 [ 11.108764][ T203] Preemption disabled at: [ 11.108765][ T203] [<0000000000000000>] 0x0 [ 11.108773][ T203] CPU: 1 UID: 0 PID: 203 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.108777][ T203] Tainted: [W]=WARN [ 11.108779][ T203] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.108781][ T203] Call Trace: [ 11.108783][ T203] [ 11.108785][ T203] dump_stack_lvl+0x6f/0xa0 [ 11.108793][ T203] __might_resched.cold+0x1fe/0x2c1 [ 11.108799][ T203] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.108805][ T203] ? __kmalloc_noprof+0xdb/0x760 [ 11.108812][ T203] __kmalloc_noprof+0x443/0x760 [ 11.108815][ T203] ? alloc_buf.isra.0+0x4b/0x260 [ 11.108824][ T203] ? do_raw_spin_unlock+0x59/0x250 [ 11.108828][ T203] alloc_buf.isra.0+0x4b/0x260 [ 11.108834][ T203] put_chars+0x1e1/0x2f0 [ 11.108838][ T203] ? __send_to_port+0x420/0x420 [ 11.108840][ T203] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.108845][ T203] ? validate_chain+0x38b/0xc20 [ 11.108855][ T203] hvc_console_print+0x292/0x780 [ 11.108866][ T203] ? hvc_write+0x3a0/0x3a0 [ 11.108870][ T203] ? rcu_is_watching+0x16/0xd0 [ 11.108874][ T203] ? lock_acquire+0x13c/0x160 [ 11.108881][ T203] console_emit_next_record+0x22f/0x4c0 [ 11.108887][ T203] ? devkmsg_read+0x4b0/0x4b0 [ 11.108889][ T203] ? console_flush_one_record+0x106/0x710 [ 11.108895][ T203] ? rcu_is_watching+0x16/0xd0 [ 11.108898][ T203] ? lock_acquire+0x13c/0x160 [ 11.108904][ T203] console_flush_one_record+0x46f/0x710 [ 11.108911][ T203] ? console_emit_next_record+0x4c0/0x4c0 [ 11.108914][ T203] ? __lock_acquire+0x518/0xc20 [ 11.108923][ T203] console_unlock+0xee/0x1f0 [ 11.108928][ T203] ? console_flush_one_record+0x710/0x710 [ 11.108930][ T203] ? rcu_is_watching+0x16/0xd0 [ 11.108933][ T203] ? lock_acquire+0xe0/0x160 [ 11.108940][ T203] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.108942][ T203] ? vprintk_emit+0x320/0x3e0 [ 11.108947][ T203] vprintk_emit+0x37c/0x3e0 [ 11.108952][ T203] ? wake_up_klogd_work_func+0x90/0x90 [ 11.108964][ T203] ? __lock_acquire+0x518/0xc20 [ 11.108970][ T203] _printk+0xc7/0x100 [ 11.108975][ T203] ? snapshot_read.cold+0x21/0x21 [ 11.108980][ T203] ? do_raw_spin_lock+0x131/0x280 [ 11.108984][ T203] ? __rwlock_init+0x150/0x150 [ 11.108990][ T203] ? do_raw_spin_lock+0x131/0x280 [ 11.108995][ T203] do_exit.cold+0x82/0x9c [ 11.109000][ T203] ? exit_notify+0x890/0x890 [ 11.109002][ T203] ? __lock_release.isra.0+0x69/0x1a0 [ 11.109007][ T203] ? rcu_is_watching+0x16/0xd0 [ 11.109013][ T203] do_group_exit+0xb8/0x370 [ 11.109018][ T203] __x64_sys_exit_group+0x3c/0x50 [ 11.109021][ T203] x64_sys_call+0x1567/0x1570 [ 11.109024][ T203] do_syscall_64+0xff/0x530 [ 11.109029][ T203] ? exc_page_fault+0xee/0x100 [ 11.109034][ T203] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.109037][ T203] RIP: 0033:0x7f2ec10591b8 [ 11.109041][ T203] Code: Unable to access opcode bytes at 0x7f2ec105918e. [ 11.109042][ T203] RSP: 002b:00007ffeec39b498 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.109046][ T203] RAX: ffffffffffffffda RBX: 00007f2ec1189f88 RCX: 00007f2ec10591b8 [ 11.109048][ T203] RDX: 00007f2ec0da3fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 11.109049][ T203] RBP: 00007ffeec39b4f0 R08: 0000000000000000 R09: 0000000000000050 [ 11.109050][ T203] R10: 00007ffeec39b2b0 R11: 0000000000000246 R12: 0000000000000001 [ 11.109052][ T203] R13: 0000000000000000 R14: 00007f2ec1188680 R15: 00007f2ec1189fa0 [ 11.109064][ T203]