[ 33.528905][ T317] ip (317) used greatest stack depth: 23904 bytes left [ 33.528923][ T317] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 33.528926][ T317] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 317, name: ip [ 33.528927][ T317] preempt_count: 2, expected: 0 [ 33.528928][ T317] RCU nest depth: 0, expected: 0 [ 33.528929][ T317] locks held by ip/317: 5, last CPU#3: [ 33.528931][ T317] #0: ffffffff91a027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 33.528945][ T317] #1: ffffffff91b99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 33.528951][ T317] #2: ffffffff91b99d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 33.528955][ T317] #3: ffffffff91a89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 33.528958][ T317] #4: ffffffff91a89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 33.528962][ T317] irq event stamp: 29032 [ 33.528963][ T317] hardirqs last enabled at (29031): [] __down_trylock_console_sem+0x86/0xa0 [ 33.528965][ T317] hardirqs last disabled at (29032): [] console_emit_next_record+0x3f8/0x4f0 [ 33.528967][ T317] softirqs last enabled at (27670): [] handle_softirqs+0x67c/0x900 [ 33.528969][ T317] softirqs last disabled at (27575): [] __irq_exit_rcu+0x145/0x1c0 [ 33.528972][ T317] Preemption disabled at: [ 33.528972][ T317] [<0000000000000000>] 0x0 [ 33.528979][ T317] CPU: 3 UID: 0 PID: 317 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 33.528982][ T317] Tainted: [W]=WARN [ 33.528983][ T317] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 33.528985][ T317] Call Trace: [ 33.528987][ T317] [ 33.528988][ T317] dump_stack_lvl+0x6f/0xa0 [ 33.528994][ T317] __might_resched.cold+0x1fe/0x2c1 [ 33.528999][ T317] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 33.529003][ T317] ? __kmalloc_noprof+0xdb/0x760 [ 33.529008][ T317] __kmalloc_noprof+0x443/0x760 [ 33.529010][ T317] ? alloc_buf.isra.0+0x4b/0x260 [ 33.529015][ T317] ? do_raw_spin_unlock+0x59/0x250 [ 33.529018][ T317] alloc_buf.isra.0+0x4b/0x260 [ 33.529021][ T317] put_chars+0x1e1/0x2f0 [ 33.529024][ T317] ? __send_to_port+0x420/0x420 [ 33.529025][ T317] ? printk_get_next_message+0x2fe/0x7d0 [ 33.529028][ T317] ? rcu_read_lock_any_held+0x3c/0x90 [ 33.529031][ T317] ? validate_chain+0x38b/0xc20 [ 33.529035][ T317] hvc_console_print+0x292/0x780 [ 33.529038][ T317] ? __lock_acquire+0x518/0xc20 [ 33.529039][ T317] ? __lock_acquire+0x518/0xc20 [ 33.529044][ T317] ? hvc_write+0x3a0/0x3a0 [ 33.529047][ T317] ? rcu_is_watching+0x16/0xd0 [ 33.529050][ T317] ? lock_acquire+0x13c/0x160 [ 33.529053][ T317] console_emit_next_record+0x252/0x4f0 [ 33.529057][ T317] ? devkmsg_read+0x4e0/0x4e0 [ 33.529061][ T317] ? rcu_is_watching+0x16/0xd0 [ 33.529063][ T317] ? lock_acquire+0x13c/0x160 [ 33.529070][ T317] console_flush_one_record+0x46f/0x710 [ 33.529074][ T317] ? console_emit_next_record+0x4f0/0x4f0 [ 33.529075][ T317] ? __lock_acquire+0x518/0xc20 [ 33.529080][ T317] console_unlock+0xee/0x1f0 [ 33.529083][ T317] ? console_flush_one_record+0x710/0x710 [ 33.529084][ T317] ? rcu_is_watching+0x16/0xd0 [ 33.529086][ T317] ? lock_acquire+0x60/0x160 [ 33.529090][ T317] ? __down_trylock_console_sem+0x5e/0xa0 [ 33.529091][ T317] ? vprintk_emit+0x320/0x3e0 [ 33.529094][ T317] vprintk_emit+0x37c/0x3e0 [ 33.529098][ T317] ? wake_up_klogd_work_func+0x90/0x90 [ 33.529101][ T317] ? __lock_acquire+0x518/0xc20 [ 33.529104][ T317] _printk+0xc7/0x100 [ 33.529108][ T317] ? snapshot_read.cold+0x21/0x21 [ 33.529111][ T317] ? do_raw_spin_lock+0x131/0x280 [ 33.529113][ T317] ? __rwlock_init+0x150/0x150 [ 33.529116][ T317] ? do_raw_spin_lock+0x131/0x280 [ 33.529119][ T317] do_exit.cold+0x82/0x9c [ 33.529123][ T317] ? exit_notify+0x890/0x890 [ 33.529124][ T317] ? __lock_release.isra.0+0x69/0x1a0 [ 33.529127][ T317] ? rcu_is_watching+0x16/0xd0 [ 33.529131][ T317] do_group_exit+0xb8/0x370 [ 33.529134][ T317] __x64_sys_exit_group+0x3c/0x50 [ 33.529136][ T317] x64_sys_call+0x1567/0x1570 [ 33.529138][ T317] do_syscall_64+0xff/0x530 [ 33.529142][ T317] ? exc_page_fault+0xee/0x100 [ 33.529145][ T317] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 33.529147][ T317] RIP: 0033:0x7fdd38b4a1b8 [ 33.529150][ T317] Code: Unable to access opcode bytes at 0x7fdd38b4a18e. [ 33.529151][ T317] RSP: 002b:00007ffdfa3355b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 33.529153][ T317] RAX: ffffffffffffffda RBX: 00007fdd38c7af88 RCX: 00007fdd38b4a1b8 [ 33.529154][ T317] RDX: 00007fdd38894fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 33.529155][ T317] RBP: 00007ffdfa335610 R08: 0000000000000000 R09: 0000000000000050 [ 33.529156][ T317] R10: 00007ffdfa3353d0 R11: 0000000000000246 R12: 0000000000000001 [ 33.529157][ T317] R13: 0000000000000000 R14: 00007fdd38c79680 R15: 00007fdd38c7afa0 [ 33.529164][ T317]