[ 9.215704][ T187] ip (187) used greatest stack depth: 24416 bytes left [ 9.215721][ T187] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.215722][ T187] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 187, name: ip [ 9.215724][ T187] preempt_count: 2, expected: 0 [ 9.215725][ T187] RCU nest depth: 0, expected: 0 [ 9.215726][ T187] locks held by ip/187: 5, last CPU#2: [ 9.215728][ T187] #0: ffffffffb78027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.215740][ T187] #1: ffffffffb7969cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.215746][ T187] #2: ffffffffb7969d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.215750][ T187] #3: ffffffffb7889660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.215753][ T187] #4: ffffffffb7889560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.215757][ T187] irq event stamp: 29330 [ 9.215758][ T187] hardirqs last enabled at (29329): [] __down_trylock_console_sem+0x86/0xa0 [ 9.215761][ T187] hardirqs last disabled at (29330): [] console_emit_next_record+0x3d4/0x4c0 [ 9.215763][ T187] softirqs last enabled at (28044): [] netlink_release+0x17b/0xcf0 [ 9.215767][ T187] softirqs last disabled at (28042): [] netlink_release+0xd2/0xcf0 [ 9.215769][ T187] Preemption disabled at: [ 9.215770][ T187] [<0000000000000000>] 0x0 [ 9.215776][ T187] CPU: 2 UID: 0 PID: 187 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.215780][ T187] Tainted: [W]=WARN [ 9.215781][ T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.215782][ T187] Call Trace: [ 9.215784][ T187] [ 9.215785][ T187] dump_stack_lvl+0x6f/0xa0 [ 9.215791][ T187] __might_resched.cold+0x1fe/0x2c1 [ 9.215796][ T187] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.215800][ T187] ? __kmalloc_noprof+0xdb/0x760 [ 9.215806][ T187] __kmalloc_noprof+0x443/0x760 [ 9.215808][ T187] ? alloc_buf.isra.0+0x4b/0x260 [ 9.215814][ T187] ? do_raw_spin_unlock+0x59/0x250 [ 9.215817][ T187] alloc_buf.isra.0+0x4b/0x260 [ 9.215820][ T187] put_chars+0x1e1/0x2f0 [ 9.215822][ T187] ? __send_to_port+0x420/0x420 [ 9.215824][ T187] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.215829][ T187] ? validate_chain+0x38b/0xc20 [ 9.215834][ T187] hvc_console_print+0x292/0x780 [ 9.215840][ T187] ? hvc_write+0x3a0/0x3a0 [ 9.215842][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.215844][ T187] ? lock_acquire+0x13c/0x160 [ 9.215848][ T187] console_emit_next_record+0x22f/0x4c0 [ 9.215852][ T187] ? devkmsg_read+0x4b0/0x4b0 [ 9.215854][ T187] ? console_flush_one_record+0x106/0x710 [ 9.215857][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.215860][ T187] ? lock_acquire+0x13c/0x160 [ 9.215863][ T187] console_flush_one_record+0x46f/0x710 [ 9.215873][ T187] ? console_emit_next_record+0x4c0/0x4c0 [ 9.215875][ T187] ? __lock_acquire+0x518/0xc20 [ 9.215880][ T187] console_unlock+0xee/0x1f0 [ 9.215883][ T187] ? console_flush_one_record+0x710/0x710 [ 9.215885][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.215890][ T187] ? lock_acquire+0x60/0x160 [ 9.215894][ T187] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.215895][ T187] ? vprintk_emit+0x320/0x3e0 [ 9.215899][ T187] vprintk_emit+0x37c/0x3e0 [ 9.215902][ T187] ? wake_up_klogd_work_func+0x90/0x90 [ 9.215906][ T187] ? __lock_acquire+0x518/0xc20 [ 9.215910][ T187] _printk+0xc7/0x100 [ 9.215913][ T187] ? snapshot_read.cold+0x21/0x21 [ 9.215916][ T187] ? do_raw_spin_lock+0x131/0x280 [ 9.215919][ T187] ? __rwlock_init+0x150/0x150 [ 9.215922][ T187] ? do_raw_spin_lock+0x131/0x280 [ 9.215925][ T187] do_exit.cold+0x82/0x9c [ 9.215929][ T187] ? exit_notify+0x890/0x890 [ 9.215931][ T187] ? __lock_release.isra.0+0x69/0x1a0 [ 9.215934][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.215938][ T187] do_group_exit+0xb8/0x370 [ 9.215941][ T187] __x64_sys_exit_group+0x3c/0x50 [ 9.215943][ T187] x64_sys_call+0x1567/0x1570 [ 9.215945][ T187] do_syscall_64+0xff/0x530 [ 9.215948][ T187] ? exc_page_fault+0xee/0x100 [ 9.215951][ T187] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.215954][ T187] RIP: 0033:0x7f3f3e0221b8 [ 9.215956][ T187] Code: Unable to access opcode bytes at 0x7f3f3e02218e. [ 9.215957][ T187] RSP: 002b:00007ffc62ec15f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.215959][ T187] RAX: ffffffffffffffda RBX: 00007f3f3e152f88 RCX: 00007f3f3e0221b8 [ 9.215961][ T187] RDX: 00007f3f3dd6cfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.215962][ T187] RBP: 00007ffc62ec1650 R08: 0000000000000000 R09: 0000000000008010 [ 9.215963][ T187] R10: 00007ffc62ec1410 R11: 0000000000000246 R12: 0000000000000001 [ 9.215963][ T187] R13: 0000000000000000 R14: 00007f3f3e151680 R15: 00007f3f3e152fa0 [ 9.215970][ T187]