[ 10.953997][ T184] ip (184) used greatest stack depth: 23920 bytes left [ 10.954022][ T184] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.954024][ T184] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 184, name: ip [ 10.954026][ T184] preempt_count: 2, expected: 0 [ 10.954026][ T184] RCU nest depth: 0, expected: 0 [ 10.954027][ T184] locks held by ip/184: 5, last CPU#0: [ 10.954030][ T184] #0: ffffffff93e02f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 10.954043][ T184] #1: ffffffff93f6a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.954048][ T184] #2: ffffffff93f6a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.954051][ T184] #3: ffffffff93e89de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.954055][ T184] #4: ffffffff93e89ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.954058][ T184] irq event stamp: 55592 [ 10.954059][ T184] hardirqs last enabled at (55591): [] __down_trylock_console_sem+0x86/0xa0 [ 10.954063][ T184] hardirqs last disabled at (55592): [] console_emit_next_record+0x3d4/0x4c0 [ 10.954064][ T184] softirqs last enabled at (55588): [] handle_softirqs+0x67c/0x900 [ 10.954067][ T184] softirqs last disabled at (55581): [] __irq_exit_rcu+0x145/0x1c0 [ 10.954070][ T184] Preemption disabled at: [ 10.954070][ T184] [<0000000000000000>] 0x0 [ 10.954077][ T184] CPU: 0 UID: 0 PID: 184 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.954081][ T184] Tainted: [W]=WARN [ 10.954082][ T184] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.954084][ T184] Call Trace: [ 10.954086][ T184] [ 10.954087][ T184] dump_stack_lvl+0x6f/0xa0 [ 10.954093][ T184] __might_resched.cold+0x1fe/0x2c1 [ 10.954097][ T184] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.954101][ T184] ? __kmalloc_noprof+0xdb/0x760 [ 10.954106][ T184] __kmalloc_noprof+0x443/0x760 [ 10.954108][ T184] ? alloc_buf.isra.0+0x4b/0x260 [ 10.954114][ T184] ? do_raw_spin_unlock+0x59/0x250 [ 10.954118][ T184] alloc_buf.isra.0+0x4b/0x260 [ 10.954121][ T184] put_chars+0x1e1/0x2f0 [ 10.954124][ T184] ? __send_to_port+0x420/0x420 [ 10.954131][ T184] hvc_console_print+0x292/0x780 [ 10.954138][ T184] ? hvc_write+0x3a0/0x3a0 [ 10.954140][ T184] ? lock_acquire+0x13c/0x160 [ 10.954145][ T184] console_emit_next_record+0x22f/0x4c0 [ 10.954149][ T184] ? devkmsg_read+0x4b0/0x4b0 [ 10.954150][ T184] ? console_flush_one_record+0x106/0x710 [ 10.954153][ T184] ? rcu_is_watching+0x16/0xd0 [ 10.954156][ T184] ? lock_acquire+0x13c/0x160 [ 10.954161][ T184] console_flush_one_record+0x46f/0x710 [ 10.954164][ T184] ? console_emit_next_record+0x4c0/0x4c0 [ 10.954166][ T184] ? __lock_acquire+0x518/0xc20 [ 10.954171][ T184] console_unlock+0xee/0x1f0 [ 10.954174][ T184] ? console_flush_one_record+0x710/0x710 [ 10.954175][ T184] ? rcu_is_watching+0x16/0xd0 [ 10.954177][ T184] ? lock_acquire+0x60/0x160 [ 10.954181][ T184] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.954183][ T184] ? vprintk_emit+0x320/0x3e0 [ 10.954186][ T184] vprintk_emit+0x37c/0x3e0 [ 10.954189][ T184] ? wake_up_klogd_work_func+0x90/0x90 [ 10.954192][ T184] ? __lock_acquire+0x518/0xc20 [ 10.954196][ T184] _printk+0xc7/0x100 [ 10.954200][ T184] ? snapshot_read.cold+0x21/0x21 [ 10.954202][ T184] ? do_raw_spin_lock+0x131/0x280 [ 10.954205][ T184] ? __rwlock_init+0x150/0x150 [ 10.954209][ T184] ? do_raw_spin_lock+0x131/0x280 [ 10.954212][ T184] do_exit.cold+0x82/0x9c [ 10.954216][ T184] ? exit_notify+0x890/0x890 [ 10.954218][ T184] ? __lock_release.isra.0+0x69/0x1a0 [ 10.954221][ T184] ? rcu_is_watching+0x16/0xd0 [ 10.954225][ T184] do_group_exit+0xb8/0x370 [ 10.954228][ T184] __x64_sys_exit_group+0x3c/0x50 [ 10.954230][ T184] x64_sys_call+0x1567/0x1570 [ 10.954232][ T184] do_syscall_64+0x10e/0x570 [ 10.954236][ T184] ? exc_page_fault+0xee/0x100 [ 10.954240][ T184] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.954242][ T184] RIP: 0033:0x7f957154d1b8 [ 10.954244][ T184] Code: Unable to access opcode bytes at 0x7f957154d18e. [ 10.954245][ T184] RSP: 002b:00007ffe16a16f98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.954248][ T184] RAX: ffffffffffffffda RBX: 00007f957167df88 RCX: 00007f957154d1b8 [ 10.954249][ T184] RDX: 00007f9571297fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.954250][ T184] RBP: 00007ffe16a16ff0 R08: 0000000000000000 R09: 0000000000008010 [ 10.954251][ T184] R10: 00007ffe16a16db0 R11: 0000000000000246 R12: 0000000000000001 [ 10.954252][ T184] R13: 0000000000000000 R14: 00007f957167c680 R15: 00007f957167dfa0 [ 10.954259][ T184]