[ 9.534001][ T193] ip (193) used greatest stack depth: 24352 bytes left [ 9.534016][ T193] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.534018][ T193] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 193, name: ip [ 9.534020][ T193] preempt_count: 2, expected: 0 [ 9.534020][ T193] RCU nest depth: 0, expected: 0 [ 9.534021][ T193] locks held by ip/193: 5, last CPU#0: [ 9.534023][ T193] #0: ffffffff966167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.534035][ T193] #1: ffffffff9677ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.534040][ T193] #2: ffffffff9677de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.534044][ T193] #3: ffffffff9669d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.534048][ T193] #4: ffffffff9669d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.534052][ T193] irq event stamp: 28732 [ 9.534053][ T193] hardirqs last enabled at (28731): [] __down_trylock_console_sem+0x86/0xa0 [ 9.534056][ T193] hardirqs last disabled at (28732): [] console_emit_next_record+0x3d4/0x4c0 [ 9.534058][ T193] softirqs last enabled at (28278): [] handle_softirqs+0x67c/0x900 [ 9.534060][ T193] softirqs last disabled at (28273): [] __irq_exit_rcu+0x145/0x1c0 [ 9.534063][ T193] Preemption disabled at: [ 9.534063][ T193] [<0000000000000000>] 0x0 [ 9.534070][ T193] CPU: 0 UID: 0 PID: 193 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.534073][ T193] Tainted: [W]=WARN [ 9.534074][ T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.534076][ T193] Call Trace: [ 9.534078][ T193] [ 9.534079][ T193] dump_stack_lvl+0x6f/0xa0 [ 9.534085][ T193] __might_resched.cold+0x1fe/0x2c1 [ 9.534090][ T193] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.534094][ T193] ? __kmalloc_noprof+0xdb/0x760 [ 9.534099][ T193] __kmalloc_noprof+0x443/0x760 [ 9.534101][ T193] ? alloc_buf.isra.0+0x4b/0x260 [ 9.534107][ T193] ? do_raw_spin_unlock+0x59/0x250 [ 9.534110][ T193] alloc_buf.isra.0+0x4b/0x260 [ 9.534114][ T193] put_chars+0x1e1/0x2f0 [ 9.534116][ T193] ? __send_to_port+0x420/0x420 [ 9.534118][ T193] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.534121][ T193] ? validate_chain+0x38b/0xc20 [ 9.534127][ T193] hvc_console_print+0x292/0x780 [ 9.534134][ T193] ? hvc_write+0x3a0/0x3a0 [ 9.534137][ T193] ? rcu_is_watching+0x16/0xd0 [ 9.534139][ T193] ? lock_acquire+0x13c/0x160 [ 9.534143][ T193] console_emit_next_record+0x22f/0x4c0 [ 9.534147][ T193] ? devkmsg_read+0x4b0/0x4b0 [ 9.534149][ T193] ? console_flush_one_record+0x106/0x710 [ 9.534152][ T193] ? rcu_is_watching+0x16/0xd0 [ 9.534154][ T193] ? lock_acquire+0x13c/0x160 [ 9.534158][ T193] console_flush_one_record+0x46f/0x710 [ 9.534162][ T193] ? console_emit_next_record+0x4c0/0x4c0 [ 9.534164][ T193] ? __lock_acquire+0x518/0xc20 [ 9.534169][ T193] console_unlock+0xee/0x1f0 [ 9.534172][ T193] ? console_flush_one_record+0x710/0x710 [ 9.534174][ T193] ? rcu_is_watching+0x16/0xd0 [ 9.534176][ T193] ? lock_acquire+0xe0/0x160 [ 9.534180][ T193] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.534181][ T193] ? vprintk_emit+0x320/0x3e0 [ 9.534184][ T193] vprintk_emit+0x37c/0x3e0 [ 9.534187][ T193] ? wake_up_klogd_work_func+0x90/0x90 [ 9.534190][ T193] ? __lock_acquire+0x518/0xc20 [ 9.534194][ T193] _printk+0xc7/0x100 [ 9.534198][ T193] ? snapshot_read.cold+0x21/0x21 [ 9.534200][ T193] ? do_raw_spin_lock+0x131/0x280 [ 9.534203][ T193] ? __rwlock_init+0x150/0x150 [ 9.534207][ T193] ? do_raw_spin_lock+0x131/0x280 [ 9.534210][ T193] do_exit.cold+0x82/0x9c [ 9.534214][ T193] ? exit_notify+0x890/0x890 [ 9.534215][ T193] ? __lock_release.isra.0+0x69/0x1a0 [ 9.534218][ T193] ? rcu_is_watching+0x16/0xd0 [ 9.534222][ T193] do_group_exit+0xb8/0x370 [ 9.534225][ T193] __x64_sys_exit_group+0x3c/0x50 [ 9.534227][ T193] x64_sys_call+0x1567/0x1570 [ 9.534229][ T193] do_syscall_64+0xff/0x530 [ 9.534233][ T193] ? exc_page_fault+0xee/0x100 [ 9.534236][ T193] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.534238][ T193] RIP: 0033:0x7fbe1631a1b8 [ 9.534240][ T193] Code: Unable to access opcode bytes at 0x7fbe1631a18e. [ 9.534242][ T193] RSP: 002b:00007ffc2a622e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.534244][ T193] RAX: ffffffffffffffda RBX: 00007fbe1644af88 RCX: 00007fbe1631a1b8 [ 9.534245][ T193] RDX: 00007fbe16064fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.534246][ T193] RBP: 00007ffc2a622ec0 R08: 0000000000000000 R09: 0000000000000050 [ 9.534247][ T193] R10: 00007ffc2a622c80 R11: 0000000000000246 R12: 0000000000000001 [ 9.534248][ T193] R13: 0000000000000000 R14: 00007fbe16449680 R15: 00007fbe1644afa0 [ 9.534255][ T193]