[ 10.237852][ T196] ip (196) used greatest stack depth: 24264 bytes left [ 10.237874][ T196] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.237877][ T196] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 196, name: ip [ 10.237879][ T196] preempt_count: 2, expected: 0 [ 10.237880][ T196] RCU nest depth: 0, expected: 0 [ 10.237881][ T196] locks held by ip/196: 5, last CPU#0: [ 10.237884][ T196] #0: ffffffffb2a167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.237897][ T196] #1: ffffffffb2b7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.237904][ T196] #2: ffffffffb2b7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.237910][ T196] #3: ffffffffb2a9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.237916][ T196] #4: ffffffffb2a9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.237922][ T196] irq event stamp: 37528 [ 10.237924][ T196] hardirqs last enabled at (37527): [] __down_trylock_console_sem+0x86/0xa0 [ 10.237928][ T196] hardirqs last disabled at (37528): [] console_emit_next_record+0x3d4/0x4c0 [ 10.237931][ T196] softirqs last enabled at (37222): [] handle_softirqs+0x67c/0x900 [ 10.237934][ T196] softirqs last disabled at (37217): [] __irq_exit_rcu+0x145/0x1c0 [ 10.237937][ T196] Preemption disabled at: [ 10.237938][ T196] [<0000000000000000>] 0x0 [ 10.237947][ T196] CPU: 0 UID: 0 PID: 196 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.237952][ T196] Tainted: [W]=WARN [ 10.237953][ T196] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.237955][ T196] Call Trace: [ 10.237957][ T196] [ 10.237959][ T196] dump_stack_lvl+0x6f/0xa0 [ 10.237968][ T196] __might_resched.cold+0x1fe/0x2c1 [ 10.237973][ T196] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.237979][ T196] ? __kmalloc_noprof+0xdb/0x760 [ 10.237985][ T196] __kmalloc_noprof+0x443/0x760 [ 10.237989][ T196] ? alloc_buf.isra.0+0x4b/0x260 [ 10.237999][ T196] ? do_raw_spin_unlock+0x59/0x250 [ 10.238002][ T196] alloc_buf.isra.0+0x4b/0x260 [ 10.238008][ T196] put_chars+0x1e1/0x2f0 [ 10.238013][ T196] ? __send_to_port+0x420/0x420 [ 10.238015][ T196] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.238020][ T196] ? validate_chain+0x38b/0xc20 [ 10.238030][ T196] hvc_console_print+0x292/0x780 [ 10.238047][ T196] ? hvc_write+0x3a0/0x3a0 [ 10.238051][ T196] ? rcu_is_watching+0x16/0xd0 [ 10.238054][ T196] ? lock_acquire+0x13c/0x160 [ 10.238061][ T196] console_emit_next_record+0x22f/0x4c0 [ 10.238068][ T196] ? devkmsg_read+0x4b0/0x4b0 [ 10.238070][ T196] ? console_flush_one_record+0x106/0x710 [ 10.238076][ T196] ? rcu_is_watching+0x16/0xd0 [ 10.238079][ T196] ? lock_acquire+0x13c/0x160 [ 10.238086][ T196] console_flush_one_record+0x46f/0x710 [ 10.238093][ T196] ? console_emit_next_record+0x4c0/0x4c0 [ 10.238096][ T196] ? __lock_acquire+0x518/0xc20 [ 10.238105][ T196] console_unlock+0xee/0x1f0 [ 10.238109][ T196] ? console_flush_one_record+0x710/0x710 [ 10.238112][ T196] ? rcu_is_watching+0x16/0xd0 [ 10.238115][ T196] ? lock_acquire+0xe0/0x160 [ 10.238122][ T196] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.238124][ T196] ? vprintk_emit+0x320/0x3e0 [ 10.238129][ T196] vprintk_emit+0x37c/0x3e0 [ 10.238135][ T196] ? wake_up_klogd_work_func+0x90/0x90 [ 10.238140][ T196] ? __lock_acquire+0x518/0xc20 [ 10.238146][ T196] _printk+0xc7/0x100 [ 10.238151][ T196] ? snapshot_read.cold+0x21/0x21 [ 10.238156][ T196] ? do_raw_spin_lock+0x131/0x280 [ 10.238160][ T196] ? __rwlock_init+0x150/0x150 [ 10.238166][ T196] ? do_raw_spin_lock+0x131/0x280 [ 10.238171][ T196] do_exit.cold+0x82/0x9c [ 10.238176][ T196] ? exit_notify+0x890/0x890 [ 10.238178][ T196] ? __lock_release.isra.0+0x69/0x1a0 [ 10.238183][ T196] ? rcu_is_watching+0x16/0xd0 [ 10.238189][ T196] do_group_exit+0xb8/0x370 [ 10.238194][ T196] __x64_sys_exit_group+0x3c/0x50 [ 10.238197][ T196] x64_sys_call+0x1567/0x1570 [ 10.238201][ T196] do_syscall_64+0xff/0x530 [ 10.238206][ T196] ? exc_page_fault+0xee/0x100 [ 10.238210][ T196] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.238214][ T196] RIP: 0033:0x7f43038b21b8 [ 10.238217][ T196] Code: Unable to access opcode bytes at 0x7f43038b218e. [ 10.238218][ T196] RSP: 002b:00007ffd7b2e9e88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.238222][ T196] RAX: ffffffffffffffda RBX: 00007f43039e2f88 RCX: 00007f43038b21b8 [ 10.238224][ T196] RDX: 00007f43035fcfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.238225][ T196] RBP: 00007ffd7b2e9ee0 R08: 0000000000000000 R09: 0000000000000050 [ 10.238227][ T196] R10: 00007ffd7b2e9ca0 R11: 0000000000000246 R12: 0000000000000001 [ 10.238228][ T196] R13: 0000000000000000 R14: 00007f43039e1680 R15: 00007f43039e2fa0 [ 10.238241][ T196] [ 10.417718][ T200] ip (200) used greatest stack depth: 24240 bytes left