[ 9.244615][ T177] ip (177) used greatest stack depth: 24248 bytes left [ 9.244631][ T177] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.244632][ T177] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 177, name: ip [ 9.244634][ T177] preempt_count: 2, expected: 0 [ 9.244635][ T177] RCU nest depth: 0, expected: 0 [ 9.244636][ T177] locks held by ip/177: 5, last CPU#0: [ 9.244639][ T177] #0: ffffffff8b402f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 9.244650][ T177] #1: ffffffff8b56a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.244655][ T177] #2: ffffffff8b56a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.244658][ T177] #3: ffffffff8b489de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.244661][ T177] #4: ffffffff8b489ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.244665][ T177] irq event stamp: 22666 [ 9.244666][ T177] hardirqs last enabled at (22665): [] __down_trylock_console_sem+0x86/0xa0 [ 9.244669][ T177] hardirqs last disabled at (22666): [] console_emit_next_record+0x3d4/0x4c0 [ 9.244671][ T177] softirqs last enabled at (21568): [] handle_softirqs+0x67c/0x900 [ 9.244673][ T177] softirqs last disabled at (20567): [] __irq_exit_rcu+0x145/0x1c0 [ 9.244676][ T177] Preemption disabled at: [ 9.244676][ T177] [<0000000000000000>] 0x0 [ 9.244682][ T177] CPU: 0 UID: 0 PID: 177 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.244686][ T177] Tainted: [W]=WARN [ 9.244687][ T177] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.244688][ T177] Call Trace: [ 9.244690][ T177] [ 9.244691][ T177] dump_stack_lvl+0x6f/0xa0 [ 9.244697][ T177] __might_resched.cold+0x1fe/0x2c1 [ 9.244701][ T177] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.244705][ T177] ? __kmalloc_noprof+0xdb/0x760 [ 9.244710][ T177] __kmalloc_noprof+0x443/0x760 [ 9.244712][ T177] ? alloc_buf.isra.0+0x4b/0x260 [ 9.244718][ T177] ? do_raw_spin_unlock+0x59/0x250 [ 9.244721][ T177] alloc_buf.isra.0+0x4b/0x260 [ 9.244725][ T177] put_chars+0x1e1/0x2f0 [ 9.244728][ T177] ? __send_to_port+0x420/0x420 [ 9.244734][ T177] hvc_console_print+0x292/0x780 [ 9.244741][ T177] ? hvc_write+0x3a0/0x3a0 [ 9.244744][ T177] ? lock_acquire+0x13c/0x160 [ 9.244748][ T177] console_emit_next_record+0x22f/0x4c0 [ 9.244752][ T177] ? devkmsg_read+0x4b0/0x4b0 [ 9.244753][ T177] ? console_flush_one_record+0x106/0x710 [ 9.244756][ T177] ? rcu_is_watching+0x16/0xd0 [ 9.244760][ T177] ? lock_acquire+0x13c/0x160 [ 9.244764][ T177] console_flush_one_record+0x46f/0x710 [ 9.244767][ T177] ? console_emit_next_record+0x4c0/0x4c0 [ 9.244769][ T177] ? __lock_acquire+0x518/0xc20 [ 9.244774][ T177] console_unlock+0xee/0x1f0 [ 9.244777][ T177] ? console_flush_one_record+0x710/0x710 [ 9.244778][ T177] ? rcu_is_watching+0x16/0xd0 [ 9.244780][ T177] ? lock_acquire+0x60/0x160 [ 9.244784][ T177] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.244786][ T177] ? vprintk_emit+0x320/0x3e0 [ 9.244789][ T177] vprintk_emit+0x37c/0x3e0 [ 9.244792][ T177] ? wake_up_klogd_work_func+0x90/0x90 [ 9.244795][ T177] ? __lock_acquire+0x518/0xc20 [ 9.244799][ T177] _printk+0xc7/0x100 [ 9.244803][ T177] ? snapshot_read.cold+0x21/0x21 [ 9.244805][ T177] ? do_raw_spin_lock+0x131/0x280 [ 9.244808][ T177] ? __rwlock_init+0x150/0x150 [ 9.244813][ T177] ? do_raw_spin_lock+0x131/0x280 [ 9.244816][ T177] do_exit.cold+0x82/0x9c [ 9.244820][ T177] ? exit_notify+0x890/0x890 [ 9.244822][ T177] ? __lock_release.isra.0+0x69/0x1a0 [ 9.244825][ T177] ? rcu_is_watching+0x16/0xd0 [ 9.244828][ T177] do_group_exit+0xb8/0x370 [ 9.244831][ T177] __x64_sys_exit_group+0x3c/0x50 [ 9.244833][ T177] x64_sys_call+0x1567/0x1570 [ 9.244836][ T177] do_syscall_64+0x10e/0x570 [ 9.244840][ T177] ? exc_page_fault+0xee/0x100 [ 9.244843][ T177] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.244845][ T177] RIP: 0033:0x7fbc8dc7a1b8 [ 9.244848][ T177] Code: Unable to access opcode bytes at 0x7fbc8dc7a18e. [ 9.244849][ T177] RSP: 002b:00007ffebdc9faa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.244851][ T177] RAX: ffffffffffffffda RBX: 00007fbc8ddaaf88 RCX: 00007fbc8dc7a1b8 [ 9.244852][ T177] RDX: 00007fbc8d9c4fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.244854][ T177] RBP: 00007ffebdc9fb00 R08: 0000000000000000 R09: 0000000000000050 [ 9.244854][ T177] R10: 00007ffebdc9f8c0 R11: 0000000000000246 R12: 0000000000000001 [ 9.244855][ T177] R13: 0000000000000000 R14: 00007fbc8dda9680 R15: 00007fbc8ddaafa0 [ 9.244862][ T177]