[ 9.115000][ T175] ip (175) used greatest stack depth: 23680 bytes left [ 9.115016][ T175] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.115018][ T175] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 175, name: ip [ 9.115019][ T175] preempt_count: 2, expected: 0 [ 9.115020][ T175] RCU nest depth: 0, expected: 0 [ 9.115021][ T175] locks held by ip/175: 5, last CPU#3: [ 9.115023][ T175] #0: ffffffffa9602f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 9.115035][ T175] #1: ffffffffa976a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.115040][ T175] #2: ffffffffa976a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.115043][ T175] #3: ffffffffa9689de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.115046][ T175] #4: ffffffffa9689ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.115049][ T175] irq event stamp: 36824 [ 9.115050][ T175] hardirqs last enabled at (36823): [] __down_trylock_console_sem+0x86/0xa0 [ 9.115053][ T175] hardirqs last disabled at (36824): [] console_emit_next_record+0x3d4/0x4c0 [ 9.115055][ T175] softirqs last enabled at (36264): [] handle_softirqs+0x67c/0x900 [ 9.115057][ T175] softirqs last disabled at (36259): [] __irq_exit_rcu+0x145/0x1c0 [ 9.115060][ T175] Preemption disabled at: [ 9.115060][ T175] [<0000000000000000>] 0x0 [ 9.115067][ T175] CPU: 3 UID: 0 PID: 175 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.115070][ T175] Tainted: [W]=WARN [ 9.115071][ T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.115072][ T175] Call Trace: [ 9.115074][ T175] [ 9.115075][ T175] dump_stack_lvl+0x6f/0xa0 [ 9.115081][ T175] __might_resched.cold+0x1fe/0x2c1 [ 9.115085][ T175] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.115089][ T175] ? __kmalloc_noprof+0xdb/0x760 [ 9.115094][ T175] __kmalloc_noprof+0x443/0x760 [ 9.115096][ T175] ? alloc_buf.isra.0+0x4b/0x260 [ 9.115102][ T175] ? do_raw_spin_unlock+0x59/0x250 [ 9.115105][ T175] alloc_buf.isra.0+0x4b/0x260 [ 9.115109][ T175] put_chars+0x1e1/0x2f0 [ 9.115112][ T175] ? __send_to_port+0x420/0x420 [ 9.115118][ T175] hvc_console_print+0x292/0x780 [ 9.115125][ T175] ? hvc_write+0x3a0/0x3a0 [ 9.115127][ T175] ? lock_acquire+0x13c/0x160 [ 9.115132][ T175] console_emit_next_record+0x22f/0x4c0 [ 9.115135][ T175] ? devkmsg_read+0x4b0/0x4b0 [ 9.115136][ T175] ? console_flush_one_record+0x106/0x710 [ 9.115139][ T175] ? rcu_is_watching+0x16/0xd0 [ 9.115142][ T175] ? lock_acquire+0x13c/0x160 [ 9.115146][ T175] console_flush_one_record+0x46f/0x710 [ 9.115150][ T175] ? console_emit_next_record+0x4c0/0x4c0 [ 9.115151][ T175] ? __lock_acquire+0x518/0xc20 [ 9.115156][ T175] console_unlock+0xee/0x1f0 [ 9.115159][ T175] ? console_flush_one_record+0x710/0x710 [ 9.115160][ T175] ? rcu_is_watching+0x16/0xd0 [ 9.115162][ T175] ? lock_acquire+0x60/0x160 [ 9.115166][ T175] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.115167][ T175] ? vprintk_emit+0x320/0x3e0 [ 9.115170][ T175] vprintk_emit+0x37c/0x3e0 [ 9.115173][ T175] ? wake_up_klogd_work_func+0x90/0x90 [ 9.115176][ T175] ? __lock_acquire+0x518/0xc20 [ 9.115180][ T175] _printk+0xc7/0x100 [ 9.115184][ T175] ? snapshot_read.cold+0x21/0x21 [ 9.115186][ T175] ? do_raw_spin_lock+0x131/0x280 [ 9.115189][ T175] ? __rwlock_init+0x150/0x150 [ 9.115193][ T175] ? do_raw_spin_lock+0x131/0x280 [ 9.115196][ T175] do_exit.cold+0x82/0x9c [ 9.115200][ T175] ? exit_notify+0x890/0x890 [ 9.115201][ T175] ? __lock_release.isra.0+0x69/0x1a0 [ 9.115204][ T175] ? rcu_is_watching+0x16/0xd0 [ 9.115208][ T175] do_group_exit+0xb8/0x370 [ 9.115211][ T175] __x64_sys_exit_group+0x3c/0x50 [ 9.115213][ T175] x64_sys_call+0x1567/0x1570 [ 9.115216][ T175] do_syscall_64+0x10e/0x570 [ 9.115219][ T175] ? exc_page_fault+0xee/0x100 [ 9.115222][ T175] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.115224][ T175] RIP: 0033:0x7fcf232981b8 [ 9.115227][ T175] Code: Unable to access opcode bytes at 0x7fcf2329818e. [ 9.115228][ T175] RSP: 002b:00007ffdc00892f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.115230][ T175] RAX: ffffffffffffffda RBX: 00007fcf233c8f88 RCX: 00007fcf232981b8 [ 9.115231][ T175] RDX: 00007fcf22fe2fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.115232][ T175] RBP: 00007ffdc0089350 R08: 0000000000000000 R09: 0000000000000050 [ 9.115233][ T175] R10: 00007ffdc0089110 R11: 0000000000000246 R12: 0000000000000001 [ 9.115234][ T175] R13: 0000000000000000 R14: 00007fcf233c7680 R15: 00007fcf233c8fa0 [ 9.115240][ T175]