[ 10.429460][ T200] tc (200) used greatest stack depth: 24808 bytes left [ 10.429477][ T200] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.429479][ T200] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 200, name: tc [ 10.429481][ T200] preempt_count: 2, expected: 0 [ 10.429482][ T200] RCU nest depth: 0, expected: 0 [ 10.429483][ T200] locks held by tc/200: 5, last CPU#0: [ 10.429485][ T200] #0: ffffffffb58027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.429497][ T200] #1: ffffffffb5969cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.429502][ T200] #2: ffffffffb5969d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.429506][ T200] #3: ffffffffb5889660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.429509][ T200] #4: ffffffffb5889560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.429513][ T200] irq event stamp: 21990 [ 10.429514][ T200] hardirqs last enabled at (21989): [] __down_trylock_console_sem+0x86/0xa0 [ 10.429518][ T200] hardirqs last disabled at (21990): [] console_emit_next_record+0x3d4/0x4c0 [ 10.429519][ T200] softirqs last enabled at (18188): [] handle_softirqs+0x67c/0x900 [ 10.429521][ T200] softirqs last disabled at (17689): [] __irq_exit_rcu+0x145/0x1c0 [ 10.429524][ T200] Preemption disabled at: [ 10.429524][ T200] [<0000000000000000>] 0x0 [ 10.429531][ T200] CPU: 0 UID: 0 PID: 200 Comm: tc Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.429534][ T200] Tainted: [W]=WARN [ 10.429535][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.429537][ T200] Call Trace: [ 10.429539][ T200] [ 10.429540][ T200] dump_stack_lvl+0x6f/0xa0 [ 10.429545][ T200] __might_resched.cold+0x1fe/0x2c1 [ 10.429550][ T200] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.429553][ T200] ? __kmalloc_noprof+0xdb/0x760 [ 10.429558][ T200] __kmalloc_noprof+0x443/0x760 [ 10.429561][ T200] ? alloc_buf.isra.0+0x4b/0x260 [ 10.429567][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 10.429570][ T200] alloc_buf.isra.0+0x4b/0x260 [ 10.429573][ T200] put_chars+0x1e1/0x2f0 [ 10.429576][ T200] ? __send_to_port+0x420/0x420 [ 10.429578][ T200] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.429582][ T200] ? validate_chain+0x38b/0xc20 [ 10.429587][ T200] hvc_console_print+0x292/0x780 [ 10.429594][ T200] ? hvc_write+0x3a0/0x3a0 [ 10.429596][ T200] ? rcu_is_watching+0x16/0xd0 [ 10.429598][ T200] ? lock_acquire+0x13c/0x160 [ 10.429602][ T200] console_emit_next_record+0x22f/0x4c0 [ 10.429605][ T200] ? devkmsg_read+0x4b0/0x4b0 [ 10.429606][ T200] ? console_flush_one_record+0x106/0x710 [ 10.429609][ T200] ? rcu_is_watching+0x16/0xd0 [ 10.429611][ T200] ? lock_acquire+0x13c/0x160 [ 10.429615][ T200] console_flush_one_record+0x46f/0x710 [ 10.429618][ T200] ? console_emit_next_record+0x4c0/0x4c0 [ 10.429620][ T200] ? __lock_acquire+0x518/0xc20 [ 10.429625][ T200] console_unlock+0xee/0x1f0 [ 10.429627][ T200] ? console_flush_one_record+0x710/0x710 [ 10.429628][ T200] ? rcu_is_watching+0x16/0xd0 [ 10.429630][ T200] ? lock_acquire+0x60/0x160 [ 10.429634][ T200] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.429636][ T200] ? vprintk_emit+0x320/0x3e0 [ 10.429639][ T200] vprintk_emit+0x37c/0x3e0 [ 10.429642][ T200] ? wake_up_klogd_work_func+0x90/0x90 [ 10.429645][ T200] ? __lock_acquire+0x518/0xc20 [ 10.429648][ T200] _printk+0xc7/0x100 [ 10.429652][ T200] ? snapshot_read.cold+0x21/0x21 [ 10.429655][ T200] ? do_raw_spin_lock+0x131/0x280 [ 10.429658][ T200] ? __rwlock_init+0x150/0x150 [ 10.429662][ T200] ? do_raw_spin_lock+0x131/0x280 [ 10.429664][ T200] do_exit.cold+0x82/0x9c [ 10.429668][ T200] ? exit_notify+0x890/0x890 [ 10.429669][ T200] ? __lock_release.isra.0+0x69/0x1a0 [ 10.429677][ T200] ? rcu_is_watching+0x16/0xd0 [ 10.429681][ T200] do_group_exit+0xb8/0x370 [ 10.429684][ T200] __x64_sys_exit_group+0x3c/0x50 [ 10.429686][ T200] x64_sys_call+0x1567/0x1570 [ 10.429688][ T200] do_syscall_64+0xff/0x530 [ 10.429692][ T200] ? exc_page_fault+0xee/0x100 [ 10.429695][ T200] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.429697][ T200] RIP: 0033:0x7f24a5fad1b8 [ 10.429700][ T200] Code: Unable to access opcode bytes at 0x7f24a5fad18e. [ 10.429701][ T200] RSP: 002b:00007fffe13b4b98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.429703][ T200] RAX: ffffffffffffffda RBX: 00007f24a60ddf88 RCX: 00007f24a5fad1b8 [ 10.429705][ T200] RDX: 00007f24a5cf8588 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.429705][ T200] RBP: 00007fffe13b4bf0 R08: 0000000000000000 R09: 0000000000000000 [ 10.429706][ T200] R10: 00007fffe13b4990 R11: 0000000000000246 R12: 0000000000000001 [ 10.429707][ T200] R13: 0000000000000000 R14: 00007f24a60dc680 R15: 00007f24a60ddfa0 [ 10.429714][ T200] [ 10.464879][ T199] tc (199) used greatest stack depth: 24624 bytes left