[ 10.016968][ T175] ip (175) used greatest stack depth: 23864 bytes left [ 10.016984][ T175] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.016986][ T175] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 175, name: ip [ 10.016987][ T175] preempt_count: 2, expected: 0 [ 10.016988][ T175] RCU nest depth: 0, expected: 0 [ 10.016989][ T175] locks held by ip/175: 5, last CPU#3: [ 10.016991][ T175] #0: ffffffffa9002f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 10.017003][ T175] #1: ffffffffa916a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.017008][ T175] #2: ffffffffa916a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.017011][ T175] #3: ffffffffa9089de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.017014][ T175] #4: ffffffffa9089ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.017017][ T175] irq event stamp: 23700 [ 10.017017][ T175] hardirqs last enabled at (23699): [] __down_trylock_console_sem+0x86/0xa0 [ 10.017021][ T175] hardirqs last disabled at (23700): [] console_emit_next_record+0x3d4/0x4c0 [ 10.017022][ T175] softirqs last enabled at (22124): [] netlink_release+0x17b/0xcf0 [ 10.017026][ T175] softirqs last disabled at (22122): [] netlink_release+0xd2/0xcf0 [ 10.017028][ T175] Preemption disabled at: [ 10.017029][ T175] [<0000000000000000>] 0x0 [ 10.017035][ T175] CPU: 3 UID: 0 PID: 175 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.017038][ T175] Tainted: [W]=WARN [ 10.017039][ T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.017041][ T175] Call Trace: [ 10.017042][ T175] [ 10.017043][ T175] dump_stack_lvl+0x6f/0xa0 [ 10.017049][ T175] __might_resched.cold+0x1fe/0x2c1 [ 10.017053][ T175] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.017056][ T175] ? __kmalloc_noprof+0xdb/0x760 [ 10.017061][ T175] __kmalloc_noprof+0x443/0x760 [ 10.017063][ T175] ? alloc_buf.isra.0+0x4b/0x260 [ 10.017069][ T175] ? do_raw_spin_unlock+0x59/0x250 [ 10.017072][ T175] alloc_buf.isra.0+0x4b/0x260 [ 10.017076][ T175] put_chars+0x1e1/0x2f0 [ 10.017078][ T175] ? __send_to_port+0x420/0x420 [ 10.017085][ T175] hvc_console_print+0x292/0x780 [ 10.017091][ T175] ? hvc_write+0x3a0/0x3a0 [ 10.017094][ T175] ? lock_acquire+0x13c/0x160 [ 10.017099][ T175] console_emit_next_record+0x22f/0x4c0 [ 10.017102][ T175] ? devkmsg_read+0x4b0/0x4b0 [ 10.017103][ T175] ? console_flush_one_record+0x106/0x710 [ 10.017106][ T175] ? rcu_is_watching+0x16/0xd0 [ 10.017109][ T175] ? lock_acquire+0x13c/0x160 [ 10.017113][ T175] console_flush_one_record+0x46f/0x710 [ 10.017117][ T175] ? console_emit_next_record+0x4c0/0x4c0 [ 10.017118][ T175] ? __lock_acquire+0x518/0xc20 [ 10.017123][ T175] console_unlock+0xee/0x1f0 [ 10.017125][ T175] ? console_flush_one_record+0x710/0x710 [ 10.017127][ T175] ? rcu_is_watching+0x16/0xd0 [ 10.017128][ T175] ? lock_acquire+0x60/0x160 [ 10.017132][ T175] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.017134][ T175] ? vprintk_emit+0x320/0x3e0 [ 10.017137][ T175] vprintk_emit+0x37c/0x3e0 [ 10.017140][ T175] ? wake_up_klogd_work_func+0x90/0x90 [ 10.017143][ T175] ? __lock_acquire+0x518/0xc20 [ 10.017147][ T175] _printk+0xc7/0x100 [ 10.017150][ T175] ? snapshot_read.cold+0x21/0x21 [ 10.017153][ T175] ? do_raw_spin_lock+0x131/0x280 [ 10.017155][ T175] ? __rwlock_init+0x150/0x150 [ 10.017159][ T175] ? do_raw_spin_lock+0x131/0x280 [ 10.017162][ T175] do_exit.cold+0x82/0x9c [ 10.017166][ T175] ? exit_notify+0x890/0x890 [ 10.017167][ T175] ? __lock_release.isra.0+0x69/0x1a0 [ 10.017170][ T175] ? rcu_is_watching+0x16/0xd0 [ 10.017174][ T175] do_group_exit+0xb8/0x370 [ 10.017177][ T175] __x64_sys_exit_group+0x3c/0x50 [ 10.017179][ T175] x64_sys_call+0x1567/0x1570 [ 10.017181][ T175] do_syscall_64+0x10e/0x570 [ 10.017185][ T175] ? exc_page_fault+0xee/0x100 [ 10.017188][ T175] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.017190][ T175] RIP: 0033:0x7f6c284dc1b8 [ 10.017192][ T175] Code: Unable to access opcode bytes at 0x7f6c284dc18e. [ 10.017193][ T175] RSP: 002b:00007ffdab1bf1f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.017195][ T175] RAX: ffffffffffffffda RBX: 00007f6c2860cf88 RCX: 00007f6c284dc1b8 [ 10.017197][ T175] RDX: 00007f6c28226fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.017197][ T175] RBP: 00007ffdab1bf250 R08: 0000000000000000 R09: 0000000000000050 [ 10.017198][ T175] R10: 00007ffdab1bf010 R11: 0000000000000246 R12: 0000000000000001 [ 10.017199][ T175] R13: 0000000000000000 R14: 00007f6c2860b680 R15: 00007f6c2860cfa0 [ 10.017206][ T175] [ 10.773583][ T198] ip (198) used greatest stack depth: 23712 bytes left