[ 10.498342][ T199] ip (199) used greatest stack depth: 24336 bytes left [ 10.498362][ T199] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.498364][ T199] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 199, name: ip [ 10.498366][ T199] preempt_count: 2, expected: 0 [ 10.498367][ T199] RCU nest depth: 0, expected: 0 [ 10.498368][ T199] locks held by ip/199: 5, last CPU#0: [ 10.498370][ T199] #0: ffffffff8a8267b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.498383][ T199] #1: ffffffff8a98dcc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.498389][ T199] #2: ffffffff8a98dd38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.498393][ T199] #3: ffffffff8a8ad660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.498396][ T199] #4: ffffffff8a8ad560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.498400][ T199] irq event stamp: 33978 [ 10.498401][ T199] hardirqs last enabled at (33977): [] __down_trylock_console_sem+0x86/0xa0 [ 10.498403][ T199] hardirqs last disabled at (33978): [] console_emit_next_record+0x3d4/0x4c0 [ 10.498405][ T199] softirqs last enabled at (33234): [] handle_softirqs+0x67c/0x900 [ 10.498407][ T199] softirqs last disabled at (33225): [] __irq_exit_rcu+0x145/0x1c0 [ 10.498409][ T199] Preemption disabled at: [ 10.498410][ T199] [<0000000000000000>] 0x0 [ 10.498417][ T199] CPU: 0 UID: 0 PID: 199 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.498420][ T199] Tainted: [W]=WARN [ 10.498421][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.498423][ T199] Call Trace: [ 10.498425][ T199] [ 10.498426][ T199] dump_stack_lvl+0x6f/0xa0 [ 10.498433][ T199] __might_resched.cold+0x1fe/0x2c1 [ 10.498437][ T199] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.498441][ T199] ? __kmalloc_noprof+0xdb/0x760 [ 10.498446][ T199] __kmalloc_noprof+0x443/0x760 [ 10.498448][ T199] ? alloc_buf.isra.0+0x4b/0x260 [ 10.498455][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 10.498457][ T199] alloc_buf.isra.0+0x4b/0x260 [ 10.498461][ T199] put_chars+0x1e1/0x2f0 [ 10.498464][ T199] ? __send_to_port+0x420/0x420 [ 10.498466][ T199] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.498470][ T199] ? validate_chain+0x38b/0xc20 [ 10.498476][ T199] hvc_console_print+0x292/0x780 [ 10.498483][ T199] ? hvc_write+0x3a0/0x3a0 [ 10.498486][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.498488][ T199] ? lock_acquire+0x13c/0x160 [ 10.498491][ T199] console_emit_next_record+0x22f/0x4c0 [ 10.498495][ T199] ? devkmsg_read+0x4b0/0x4b0 [ 10.498497][ T199] ? console_flush_one_record+0x106/0x710 [ 10.498500][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.498502][ T199] ? lock_acquire+0x13c/0x160 [ 10.498505][ T199] console_flush_one_record+0x46f/0x710 [ 10.498509][ T199] ? console_emit_next_record+0x4c0/0x4c0 [ 10.498511][ T199] ? __lock_acquire+0x518/0xc20 [ 10.498516][ T199] console_unlock+0xee/0x1f0 [ 10.498518][ T199] ? console_flush_one_record+0x710/0x710 [ 10.498520][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.498522][ T199] ? lock_acquire+0x60/0x160 [ 10.498525][ T199] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.498527][ T199] ? vprintk_emit+0x320/0x3e0 [ 10.498530][ T199] vprintk_emit+0x37c/0x3e0 [ 10.498534][ T199] ? wake_up_klogd_work_func+0x90/0x90 [ 10.498537][ T199] ? __lock_acquire+0x518/0xc20 [ 10.498540][ T199] _printk+0xc7/0x100 [ 10.498544][ T199] ? snapshot_read.cold+0x21/0x21 [ 10.498547][ T199] ? do_raw_spin_lock+0x131/0x280 [ 10.498549][ T199] ? __rwlock_init+0x150/0x150 [ 10.498553][ T199] ? do_raw_spin_lock+0x131/0x280 [ 10.498555][ T199] do_exit.cold+0x82/0x9c [ 10.498559][ T199] ? exit_notify+0x890/0x890 [ 10.498560][ T199] ? __lock_release.isra.0+0x69/0x1a0 [ 10.498563][ T199] ? rcu_is_watching+0x16/0xd0 [ 10.498567][ T199] do_group_exit+0xb8/0x370 [ 10.498570][ T199] __x64_sys_exit_group+0x3c/0x50 [ 10.498572][ T199] x64_sys_call+0x1567/0x1570 [ 10.498574][ T199] do_syscall_64+0xff/0x530 [ 10.498577][ T199] ? exc_page_fault+0xee/0x100 [ 10.498581][ T199] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.498583][ T199] RIP: 0033:0x7ff490b421b8 [ 10.498586][ T199] Code: Unable to access opcode bytes at 0x7ff490b4218e. [ 10.498587][ T199] RSP: 002b:00007fff96057d58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.498589][ T199] RAX: ffffffffffffffda RBX: 00007ff490c72f88 RCX: 00007ff490b421b8 [ 10.498591][ T199] RDX: 00007ff49088cfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.498591][ T199] RBP: 00007fff96057db0 R08: 0000000000000000 R09: 0000000000000000 [ 10.498592][ T199] R10: 00007fff96057b70 R11: 0000000000000246 R12: 0000000000000001 [ 10.498593][ T199] R13: 0000000000000000 R14: 00007ff490c71680 R15: 00007ff490c72fa0 [ 10.498600][ T199]