[ 10.231366][ T175] ip (175) used greatest stack depth: 23792 bytes left [ 10.231387][ T175] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.231390][ T175] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 175, name: ip [ 10.231392][ T175] preempt_count: 2, expected: 0 [ 10.231393][ T175] RCU nest depth: 0, expected: 0 [ 10.231395][ T175] locks held by ip/175: 5, last CPU#0: [ 10.231398][ T175] #0: ffffffff86e02f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 10.231413][ T175] #1: ffffffff86f6a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.231420][ T175] #2: ffffffff86f6a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.231425][ T175] #3: ffffffff86e89de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.231431][ T175] #4: ffffffff86e89ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.231441][ T175] irq event stamp: 26394 [ 10.231442][ T175] hardirqs last enabled at (26393): [] __down_trylock_console_sem+0x86/0xa0 [ 10.231447][ T175] hardirqs last disabled at (26394): [] console_emit_next_record+0x3d4/0x4c0 [ 10.231449][ T175] softirqs last enabled at (26302): [] handle_softirqs+0x67c/0x900 [ 10.231453][ T175] softirqs last disabled at (26295): [] __irq_exit_rcu+0x145/0x1c0 [ 10.231456][ T175] Preemption disabled at: [ 10.231457][ T175] [<0000000000000000>] 0x0 [ 10.231466][ T175] CPU: 0 UID: 0 PID: 175 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.231470][ T175] Tainted: [W]=WARN [ 10.231472][ T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.231474][ T175] Call Trace: [ 10.231476][ T175] [ 10.231478][ T175] dump_stack_lvl+0x6f/0xa0 [ 10.231485][ T175] __might_resched.cold+0x1fe/0x2c1 [ 10.231491][ T175] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.231496][ T175] ? __kmalloc_noprof+0xdb/0x760 [ 10.231503][ T175] __kmalloc_noprof+0x443/0x760 [ 10.231507][ T175] ? alloc_buf.isra.0+0x4b/0x260 [ 10.231516][ T175] ? do_raw_spin_unlock+0x59/0x250 [ 10.231520][ T175] alloc_buf.isra.0+0x4b/0x260 [ 10.231526][ T175] put_chars+0x1e1/0x2f0 [ 10.231530][ T175] ? __send_to_port+0x420/0x420 [ 10.231542][ T175] hvc_console_print+0x292/0x780 [ 10.231554][ T175] ? hvc_write+0x3a0/0x3a0 [ 10.231559][ T175] ? lock_acquire+0x13c/0x160 [ 10.231566][ T175] console_emit_next_record+0x22f/0x4c0 [ 10.231572][ T175] ? devkmsg_read+0x4b0/0x4b0 [ 10.231574][ T175] ? console_flush_one_record+0x106/0x710 [ 10.231578][ T175] ? rcu_is_watching+0x16/0xd0 [ 10.231583][ T175] ? lock_acquire+0x13c/0x160 [ 10.231591][ T175] console_flush_one_record+0x46f/0x710 [ 10.231597][ T175] ? console_emit_next_record+0x4c0/0x4c0 [ 10.231599][ T175] ? __lock_acquire+0x518/0xc20 [ 10.231609][ T175] console_unlock+0xee/0x1f0 [ 10.231613][ T175] ? console_flush_one_record+0x710/0x710 [ 10.231615][ T175] ? rcu_is_watching+0x16/0xd0 [ 10.231618][ T175] ? lock_acquire+0x60/0x160 [ 10.231625][ T175] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.231628][ T175] ? vprintk_emit+0x320/0x3e0 [ 10.231633][ T175] vprintk_emit+0x37c/0x3e0 [ 10.231638][ T175] ? wake_up_klogd_work_func+0x90/0x90 [ 10.231644][ T175] ? __lock_acquire+0x518/0xc20 [ 10.231650][ T175] _printk+0xc7/0x100 [ 10.231655][ T175] ? snapshot_read.cold+0x21/0x21 [ 10.231660][ T175] ? do_raw_spin_lock+0x131/0x280 [ 10.231664][ T175] ? __rwlock_init+0x150/0x150 [ 10.231671][ T175] ? do_raw_spin_lock+0x131/0x280 [ 10.231676][ T175] do_exit.cold+0x82/0x9c [ 10.231682][ T175] ? exit_notify+0x890/0x890 [ 10.231684][ T175] ? __lock_release.isra.0+0x69/0x1a0 [ 10.231689][ T175] ? rcu_is_watching+0x16/0xd0 [ 10.231695][ T175] do_group_exit+0xb8/0x370 [ 10.231700][ T175] __x64_sys_exit_group+0x3c/0x50 [ 10.231703][ T175] x64_sys_call+0x1567/0x1570 [ 10.231707][ T175] do_syscall_64+0x10e/0x570 [ 10.231712][ T175] ? exc_page_fault+0xee/0x100 [ 10.231717][ T175] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.231720][ T175] RIP: 0033:0x7f37641af1b8 [ 10.231723][ T175] Code: Unable to access opcode bytes at 0x7f37641af18e. [ 10.231725][ T175] RSP: 002b:00007fffcf6031a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.231728][ T175] RAX: ffffffffffffffda RBX: 00007f37642dff88 RCX: 00007f37641af1b8 [ 10.231730][ T175] RDX: 00007f3763ef9fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.231731][ T175] RBP: 00007fffcf603200 R08: 0000000000000000 R09: 0000000000000050 [ 10.231733][ T175] R10: 00007fffcf602fc0 R11: 0000000000000246 R12: 0000000000000001 [ 10.231734][ T175] R13: 0000000000000000 R14: 00007f37642de680 R15: 00007f37642dffa0 [ 10.231747][ T175]