[ 9.197861][ T198] ip (198) used greatest stack depth: 24768 bytes left [ 9.197875][ T198] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.197877][ T198] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 198, name: ip [ 9.197879][ T198] preempt_count: 2, expected: 0 [ 9.197879][ T198] RCU nest depth: 0, expected: 0 [ 9.197880][ T198] locks held by ip/198: 5, last CPU#1: [ 9.197882][ T198] #0: ffffffffa4e167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.197893][ T198] #1: ffffffffa4f7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.197898][ T198] #2: ffffffffa4f7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.197902][ T198] #3: ffffffffa4e9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.197905][ T198] #4: ffffffffa4e9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.197909][ T198] irq event stamp: 30528 [ 9.197910][ T198] hardirqs last enabled at (30527): [] __down_trylock_console_sem+0x86/0xa0 [ 9.197913][ T198] hardirqs last disabled at (30528): [] console_emit_next_record+0x3d4/0x4c0 [ 9.197915][ T198] softirqs last enabled at (30458): [] handle_softirqs+0x67c/0x900 [ 9.197917][ T198] softirqs last disabled at (30453): [] __irq_exit_rcu+0x145/0x1c0 [ 9.197920][ T198] Preemption disabled at: [ 9.197920][ T198] [<0000000000000000>] 0x0 [ 9.197927][ T198] CPU: 1 UID: 0 PID: 198 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.197931][ T198] Tainted: [W]=WARN [ 9.197931][ T198] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.197933][ T198] Call Trace: [ 9.197935][ T198] [ 9.197936][ T198] dump_stack_lvl+0x6f/0xa0 [ 9.197942][ T198] __might_resched.cold+0x1fe/0x2c1 [ 9.197947][ T198] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.197950][ T198] ? __kmalloc_noprof+0xdb/0x760 [ 9.197955][ T198] __kmalloc_noprof+0x443/0x760 [ 9.197957][ T198] ? alloc_buf.isra.0+0x4b/0x260 [ 9.197963][ T198] ? do_raw_spin_unlock+0x59/0x250 [ 9.197966][ T198] alloc_buf.isra.0+0x4b/0x260 [ 9.197969][ T198] put_chars+0x1e1/0x2f0 [ 9.197972][ T198] ? __send_to_port+0x420/0x420 [ 9.197973][ T198] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.197976][ T198] ? validate_chain+0x38b/0xc20 [ 9.197982][ T198] hvc_console_print+0x292/0x780 [ 9.197989][ T198] ? hvc_write+0x3a0/0x3a0 [ 9.197992][ T198] ? rcu_is_watching+0x16/0xd0 [ 9.197994][ T198] ? lock_acquire+0x13c/0x160 [ 9.197998][ T198] console_emit_next_record+0x22f/0x4c0 [ 9.198001][ T198] ? devkmsg_read+0x4b0/0x4b0 [ 9.198003][ T198] ? console_flush_one_record+0x106/0x710 [ 9.198006][ T198] ? rcu_is_watching+0x16/0xd0 [ 9.198008][ T198] ? lock_acquire+0x13c/0x160 [ 9.198012][ T198] console_flush_one_record+0x46f/0x710 [ 9.198016][ T198] ? console_emit_next_record+0x4c0/0x4c0 [ 9.198018][ T198] ? __lock_acquire+0x518/0xc20 [ 9.198023][ T198] console_unlock+0xee/0x1f0 [ 9.198026][ T198] ? console_flush_one_record+0x710/0x710 [ 9.198027][ T198] ? rcu_is_watching+0x16/0xd0 [ 9.198029][ T198] ? lock_acquire+0xe0/0x160 [ 9.198033][ T198] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.198034][ T198] ? vprintk_emit+0x320/0x3e0 [ 9.198037][ T198] vprintk_emit+0x37c/0x3e0 [ 9.198040][ T198] ? wake_up_klogd_work_func+0x90/0x90 [ 9.198043][ T198] ? __lock_acquire+0x518/0xc20 [ 9.198046][ T198] _printk+0xc7/0x100 [ 9.198050][ T198] ? snapshot_read.cold+0x21/0x21 [ 9.198053][ T198] ? do_raw_spin_lock+0x131/0x280 [ 9.198055][ T198] ? __rwlock_init+0x150/0x150 [ 9.198059][ T198] ? do_raw_spin_lock+0x131/0x280 [ 9.198062][ T198] do_exit.cold+0x82/0x9c [ 9.198065][ T198] ? exit_notify+0x890/0x890 [ 9.198067][ T198] ? __lock_release.isra.0+0x69/0x1a0 [ 9.198069][ T198] ? rcu_is_watching+0x16/0xd0 [ 9.198073][ T198] do_group_exit+0xb8/0x370 [ 9.198076][ T198] __x64_sys_exit_group+0x3c/0x50 [ 9.198077][ T198] x64_sys_call+0x1567/0x1570 [ 9.198080][ T198] do_syscall_64+0xff/0x530 [ 9.198084][ T198] ? exc_page_fault+0xee/0x100 [ 9.198087][ T198] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.198089][ T198] RIP: 0033:0x7f8675b0d1b8 [ 9.198091][ T198] Code: Unable to access opcode bytes at 0x7f8675b0d18e. [ 9.198092][ T198] RSP: 002b:00007fffd69f6ad8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.198094][ T198] RAX: ffffffffffffffda RBX: 00007f8675c3df88 RCX: 00007f8675b0d1b8 [ 9.198096][ T198] RDX: 00007f8675857fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.198097][ T198] RBP: 00007fffd69f6b30 R08: 0000000000000000 R09: 0000000000008010 [ 9.198098][ T198] R10: 00007fffd69f68f0 R11: 0000000000000246 R12: 0000000000000001 [ 9.198098][ T198] R13: 0000000000000000 R14: 00007f8675c3c680 R15: 00007f8675c3dfa0 [ 9.198105][ T198] [ 9.560358][ T228] ip (228) used greatest stack depth: 24576 bytes left