[ 9.395040][ T200] ip (200) used greatest stack depth: 24088 bytes left [ 9.395056][ T200] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.395058][ T200] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 200, name: ip [ 9.395059][ T200] preempt_count: 2, expected: 0 [ 9.395060][ T200] RCU nest depth: 0, expected: 0 [ 9.395061][ T200] locks held by ip/200: 5, last CPU#2: [ 9.395063][ T200] #0: ffffffffb28167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.395074][ T200] #1: ffffffffb297ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.395079][ T200] #2: ffffffffb297de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.395083][ T200] #3: ffffffffb289d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.395087][ T200] #4: ffffffffb289d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.395091][ T200] irq event stamp: 27746 [ 9.395092][ T200] hardirqs last enabled at (27745): [] __down_trylock_console_sem+0x86/0xa0 [ 9.395095][ T200] hardirqs last disabled at (27746): [] console_emit_next_record+0x3d4/0x4c0 [ 9.395097][ T200] softirqs last enabled at (26660): [] handle_softirqs+0x67c/0x900 [ 9.395100][ T200] softirqs last disabled at (26655): [] __irq_exit_rcu+0x145/0x1c0 [ 9.395103][ T200] Preemption disabled at: [ 9.395104][ T200] [<0000000000000000>] 0x0 [ 9.395112][ T200] CPU: 2 UID: 0 PID: 200 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.395116][ T200] Tainted: [W]=WARN [ 9.395118][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.395120][ T200] Call Trace: [ 9.395122][ T200] [ 9.395125][ T200] dump_stack_lvl+0x6f/0xa0 [ 9.395132][ T200] __might_resched.cold+0x1fe/0x2c1 [ 9.395138][ T200] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.395144][ T200] ? __kmalloc_noprof+0xdb/0x760 [ 9.395149][ T200] __kmalloc_noprof+0x443/0x760 [ 9.395151][ T200] ? alloc_buf.isra.0+0x4b/0x260 [ 9.395159][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 9.395162][ T200] alloc_buf.isra.0+0x4b/0x260 [ 9.395165][ T200] put_chars+0x1e1/0x2f0 [ 9.395168][ T200] ? __send_to_port+0x420/0x420 [ 9.395169][ T200] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.395173][ T200] ? validate_chain+0x38b/0xc20 [ 9.395178][ T200] hvc_console_print+0x292/0x780 [ 9.395186][ T200] ? hvc_write+0x3a0/0x3a0 [ 9.395188][ T200] ? rcu_is_watching+0x16/0xd0 [ 9.395190][ T200] ? lock_acquire+0x13c/0x160 [ 9.395194][ T200] console_emit_next_record+0x22f/0x4c0 [ 9.395198][ T200] ? devkmsg_read+0x4b0/0x4b0 [ 9.395200][ T200] ? console_flush_one_record+0x106/0x710 [ 9.395203][ T200] ? rcu_is_watching+0x16/0xd0 [ 9.395205][ T200] ? lock_acquire+0x13c/0x160 [ 9.395209][ T200] console_flush_one_record+0x46f/0x710 [ 9.395213][ T200] ? console_emit_next_record+0x4c0/0x4c0 [ 9.395215][ T200] ? __lock_acquire+0x518/0xc20 [ 9.395220][ T200] console_unlock+0xee/0x1f0 [ 9.395223][ T200] ? console_flush_one_record+0x710/0x710 [ 9.395224][ T200] ? rcu_is_watching+0x16/0xd0 [ 9.395226][ T200] ? lock_acquire+0xe0/0x160 [ 9.395230][ T200] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.395232][ T200] ? vprintk_emit+0x320/0x3e0 [ 9.395234][ T200] vprintk_emit+0x37c/0x3e0 [ 9.395237][ T200] ? wake_up_klogd_work_func+0x90/0x90 [ 9.395240][ T200] ? __lock_acquire+0x518/0xc20 [ 9.395244][ T200] _printk+0xc7/0x100 [ 9.395247][ T200] ? snapshot_read.cold+0x21/0x21 [ 9.395250][ T200] ? do_raw_spin_lock+0x131/0x280 [ 9.395253][ T200] ? __rwlock_init+0x150/0x150 [ 9.395256][ T200] ? do_raw_spin_lock+0x131/0x280 [ 9.395259][ T200] do_exit.cold+0x82/0x9c [ 9.395262][ T200] ? exit_notify+0x890/0x890 [ 9.395264][ T200] ? __lock_release.isra.0+0x69/0x1a0 [ 9.395266][ T200] ? rcu_is_watching+0x16/0xd0 [ 9.395270][ T200] do_group_exit+0xb8/0x370 [ 9.395273][ T200] __x64_sys_exit_group+0x3c/0x50 [ 9.395274][ T200] x64_sys_call+0x1567/0x1570 [ 9.395277][ T200] do_syscall_64+0xff/0x530 [ 9.395281][ T200] ? exc_page_fault+0xee/0x100 [ 9.395284][ T200] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.395286][ T200] RIP: 0033:0x7f90a25291b8 [ 9.395288][ T200] Code: Unable to access opcode bytes at 0x7f90a252918e. [ 9.395289][ T200] RSP: 002b:00007fff9352d4b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.395292][ T200] RAX: ffffffffffffffda RBX: 00007f90a2659f88 RCX: 00007f90a25291b8 [ 9.395293][ T200] RDX: 00007f90a2273fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.395294][ T200] RBP: 00007fff9352d510 R08: 0000000000000000 R09: 0000000000000050 [ 9.395295][ T200] R10: 00007fff9352d2d0 R11: 0000000000000246 R12: 0000000000000001 [ 9.395295][ T200] R13: 0000000000000000 R14: 00007f90a2658680 R15: 00007f90a2659fa0 [ 9.395302][ T200] [ 9.569713][ T205] ip (205) used greatest stack depth: 24032 bytes left