[ 9.484912][ T201] ip (201) used greatest stack depth: 23784 bytes left [ 9.484927][ T201] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.484928][ T201] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 201, name: ip [ 9.484930][ T201] preempt_count: 2, expected: 0 [ 9.484931][ T201] RCU nest depth: 0, expected: 0 [ 9.484932][ T201] locks held by ip/201: 5, last CPU#2: [ 9.484934][ T201] #0: ffffffffbc0167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.484946][ T201] #1: ffffffffbc17ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.484950][ T201] #2: ffffffffbc17de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.484954][ T201] #3: ffffffffbc09d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.484958][ T201] #4: ffffffffbc09d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.484962][ T201] irq event stamp: 30684 [ 9.484964][ T201] hardirqs last enabled at (30683): [] __down_trylock_console_sem+0x86/0xa0 [ 9.484967][ T201] hardirqs last disabled at (30684): [] console_emit_next_record+0x3d4/0x4c0 [ 9.484969][ T201] softirqs last enabled at (26964): [] handle_softirqs+0x67c/0x900 [ 9.484972][ T201] softirqs last disabled at (25263): [] __irq_exit_rcu+0x145/0x1c0 [ 9.484974][ T201] Preemption disabled at: [ 9.484975][ T201] [<0000000000000000>] 0x0 [ 9.484982][ T201] CPU: 2 UID: 0 PID: 201 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.484985][ T201] Tainted: [W]=WARN [ 9.484986][ T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.484987][ T201] Call Trace: [ 9.484989][ T201] [ 9.484990][ T201] dump_stack_lvl+0x6f/0xa0 [ 9.484997][ T201] __might_resched.cold+0x1fe/0x2c1 [ 9.485001][ T201] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.485006][ T201] ? __kmalloc_noprof+0xdb/0x760 [ 9.485010][ T201] __kmalloc_noprof+0x443/0x760 [ 9.485012][ T201] ? alloc_buf.isra.0+0x4b/0x260 [ 9.485018][ T201] ? do_raw_spin_unlock+0x59/0x250 [ 9.485021][ T201] alloc_buf.isra.0+0x4b/0x260 [ 9.485024][ T201] put_chars+0x1e1/0x2f0 [ 9.485027][ T201] ? __send_to_port+0x420/0x420 [ 9.485028][ T201] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.485032][ T201] ? validate_chain+0x38b/0xc20 [ 9.485037][ T201] hvc_console_print+0x292/0x780 [ 9.485044][ T201] ? hvc_write+0x3a0/0x3a0 [ 9.485047][ T201] ? rcu_is_watching+0x16/0xd0 [ 9.485049][ T201] ? lock_acquire+0x13c/0x160 [ 9.485053][ T201] console_emit_next_record+0x22f/0x4c0 [ 9.485056][ T201] ? devkmsg_read+0x4b0/0x4b0 [ 9.485058][ T201] ? console_flush_one_record+0x106/0x710 [ 9.485061][ T201] ? rcu_is_watching+0x16/0xd0 [ 9.485063][ T201] ? lock_acquire+0x13c/0x160 [ 9.485067][ T201] console_flush_one_record+0x46f/0x710 [ 9.485071][ T201] ? console_emit_next_record+0x4c0/0x4c0 [ 9.485073][ T201] ? __lock_acquire+0x518/0xc20 [ 9.485078][ T201] console_unlock+0xee/0x1f0 [ 9.485081][ T201] ? console_flush_one_record+0x710/0x710 [ 9.485082][ T201] ? rcu_is_watching+0x16/0xd0 [ 9.485084][ T201] ? lock_acquire+0xe0/0x160 [ 9.485088][ T201] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.485089][ T201] ? vprintk_emit+0x320/0x3e0 [ 9.485092][ T201] vprintk_emit+0x37c/0x3e0 [ 9.485095][ T201] ? wake_up_klogd_work_func+0x90/0x90 [ 9.485098][ T201] ? __lock_acquire+0x518/0xc20 [ 9.485101][ T201] _printk+0xc7/0x100 [ 9.485105][ T201] ? snapshot_read.cold+0x21/0x21 [ 9.485108][ T201] ? do_raw_spin_lock+0x131/0x280 [ 9.485110][ T201] ? __rwlock_init+0x150/0x150 [ 9.485114][ T201] ? do_raw_spin_lock+0x131/0x280 [ 9.485117][ T201] do_exit.cold+0x82/0x9c [ 9.485120][ T201] ? exit_notify+0x890/0x890 [ 9.485122][ T201] ? __lock_release.isra.0+0x69/0x1a0 [ 9.485124][ T201] ? rcu_is_watching+0x16/0xd0 [ 9.485128][ T201] do_group_exit+0xb8/0x370 [ 9.485130][ T201] __x64_sys_exit_group+0x3c/0x50 [ 9.485132][ T201] x64_sys_call+0x1567/0x1570 [ 9.485135][ T201] do_syscall_64+0xff/0x530 [ 9.485139][ T201] ? exc_page_fault+0xee/0x100 [ 9.485141][ T201] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.485144][ T201] RIP: 0033:0x7f75cb6941b8 [ 9.485146][ T201] Code: Unable to access opcode bytes at 0x7f75cb69418e. [ 9.485147][ T201] RSP: 002b:00007fffdebda6e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.485149][ T201] RAX: ffffffffffffffda RBX: 00007f75cb7c4f88 RCX: 00007f75cb6941b8 [ 9.485150][ T201] RDX: 00007f75cb3defc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.485151][ T201] RBP: 00007fffdebda740 R08: 0000000000000000 R09: 0000000000000050 [ 9.485152][ T201] R10: 00007fffdebda500 R11: 0000000000000246 R12: 0000000000000001 [ 9.485153][ T201] R13: 0000000000000000 R14: 00007f75cb7c3680 R15: 00007f75cb7c4fa0 [ 9.485159][ T201]