[ 9.240414][ T199] ip (199) used greatest stack depth: 24336 bytes left [ 9.240433][ T199] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.240436][ T199] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 199, name: ip [ 9.240438][ T199] preempt_count: 2, expected: 0 [ 9.240439][ T199] RCU nest depth: 0, expected: 0 [ 9.240440][ T199] locks held by ip/199: 5, last CPU#0: [ 9.240443][ T199] #0: ffffffff912167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.240457][ T199] #1: ffffffff9137ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.240464][ T199] #2: ffffffff9137de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.240470][ T199] #3: ffffffff9129d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.240476][ T199] #4: ffffffff9129d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.240482][ T199] irq event stamp: 35542 [ 9.240483][ T199] hardirqs last enabled at (35541): [] __down_trylock_console_sem+0x86/0xa0 [ 9.240487][ T199] hardirqs last disabled at (35542): [] console_emit_next_record+0x3d4/0x4c0 [ 9.240490][ T199] softirqs last enabled at (34644): [] handle_softirqs+0x67c/0x900 [ 9.240493][ T199] softirqs last disabled at (34639): [] __irq_exit_rcu+0x145/0x1c0 [ 9.240496][ T199] Preemption disabled at: [ 9.240497][ T199] [<0000000000000000>] 0x0 [ 9.240505][ T199] CPU: 0 UID: 0 PID: 199 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.240510][ T199] Tainted: [W]=WARN [ 9.240511][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.240514][ T199] Call Trace: [ 9.240516][ T199] [ 9.240518][ T199] dump_stack_lvl+0x6f/0xa0 [ 9.240527][ T199] __might_resched.cold+0x1fe/0x2c1 [ 9.240533][ T199] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.240538][ T199] ? __kmalloc_noprof+0xdb/0x760 [ 9.240545][ T199] __kmalloc_noprof+0x443/0x760 [ 9.240548][ T199] ? alloc_buf.isra.0+0x4b/0x260 [ 9.240558][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 9.240561][ T199] alloc_buf.isra.0+0x4b/0x260 [ 9.240567][ T199] put_chars+0x1e1/0x2f0 [ 9.240571][ T199] ? __send_to_port+0x420/0x420 [ 9.240573][ T199] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.240578][ T199] ? validate_chain+0x38b/0xc20 [ 9.240587][ T199] hvc_console_print+0x292/0x780 [ 9.240601][ T199] ? hvc_write+0x3a0/0x3a0 [ 9.240605][ T199] ? rcu_is_watching+0x16/0xd0 [ 9.240608][ T199] ? lock_acquire+0x13c/0x160 [ 9.240615][ T199] console_emit_next_record+0x22f/0x4c0 [ 9.240622][ T199] ? devkmsg_read+0x4b0/0x4b0 [ 9.240624][ T199] ? console_flush_one_record+0x106/0x710 [ 9.240630][ T199] ? rcu_is_watching+0x16/0xd0 [ 9.240633][ T199] ? lock_acquire+0x13c/0x160 [ 9.240640][ T199] console_flush_one_record+0x46f/0x710 [ 9.240647][ T199] ? console_emit_next_record+0x4c0/0x4c0 [ 9.240649][ T199] ? __lock_acquire+0x518/0xc20 [ 9.240659][ T199] console_unlock+0xee/0x1f0 [ 9.240663][ T199] ? console_flush_one_record+0x710/0x710 [ 9.240666][ T199] ? rcu_is_watching+0x16/0xd0 [ 9.240669][ T199] ? lock_acquire+0xe0/0x160 [ 9.240675][ T199] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.240678][ T199] ? vprintk_emit+0x320/0x3e0 [ 9.240683][ T199] vprintk_emit+0x37c/0x3e0 [ 9.240688][ T199] ? wake_up_klogd_work_func+0x90/0x90 [ 9.240693][ T199] ? __lock_acquire+0x518/0xc20 [ 9.240699][ T199] _printk+0xc7/0x100 [ 9.240704][ T199] ? snapshot_read.cold+0x21/0x21 [ 9.240709][ T199] ? do_raw_spin_lock+0x131/0x280 [ 9.240713][ T199] ? __rwlock_init+0x150/0x150 [ 9.240720][ T199] ? do_raw_spin_lock+0x131/0x280 [ 9.240724][ T199] do_exit.cold+0x82/0x9c [ 9.240729][ T199] ? exit_notify+0x890/0x890 [ 9.240731][ T199] ? __lock_release.isra.0+0x69/0x1a0 [ 9.240736][ T199] ? rcu_is_watching+0x16/0xd0 [ 9.240742][ T199] do_group_exit+0xb8/0x370 [ 9.240747][ T199] __x64_sys_exit_group+0x3c/0x50 [ 9.240750][ T199] x64_sys_call+0x1567/0x1570 [ 9.240754][ T199] do_syscall_64+0xff/0x530 [ 9.240759][ T199] ? exc_page_fault+0xee/0x100 [ 9.240763][ T199] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.240766][ T199] RIP: 0033:0x7fc4fbd0f1b8 [ 9.240769][ T199] Code: Unable to access opcode bytes at 0x7fc4fbd0f18e. [ 9.240771][ T199] RSP: 002b:00007ffc1af13be8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.240775][ T199] RAX: ffffffffffffffda RBX: 00007fc4fbe3ff88 RCX: 00007fc4fbd0f1b8 [ 9.240777][ T199] RDX: 00007fc4fba59fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.240778][ T199] RBP: 00007ffc1af13c40 R08: 0000000000000000 R09: 0000000000008010 [ 9.240780][ T199] R10: 00007ffc1af13a00 R11: 0000000000000246 R12: 0000000000000001 [ 9.240781][ T199] R13: 0000000000000000 R14: 00007fc4fbe3e680 R15: 00007fc4fbe3ffa0 [ 9.240793][ T199]