[ 9.981511][ T196] ip (196) used greatest stack depth: 24128 bytes left [ 9.981529][ T196] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.981532][ T196] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 196, name: ip [ 9.981534][ T196] preempt_count: 2, expected: 0 [ 9.981535][ T196] RCU nest depth: 0, expected: 0 [ 9.981536][ T196] locks held by ip/196: 5, last CPU#2: [ 9.981538][ T196] #0: ffffffffa8e167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.981551][ T196] #1: ffffffffa8f7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.981557][ T196] #2: ffffffffa8f7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.981563][ T196] #3: ffffffffa8e9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.981568][ T196] #4: ffffffffa8e9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.981574][ T196] irq event stamp: 42600 [ 9.981575][ T196] hardirqs last enabled at (42599): [] __down_trylock_console_sem+0x86/0xa0 [ 9.981578][ T196] hardirqs last disabled at (42600): [] console_emit_next_record+0x3d4/0x4c0 [ 9.981581][ T196] softirqs last enabled at (42410): [] handle_softirqs+0x67c/0x900 [ 9.981584][ T196] softirqs last disabled at (42405): [] __irq_exit_rcu+0x145/0x1c0 [ 9.981587][ T196] Preemption disabled at: [ 9.981588][ T196] [<0000000000000000>] 0x0 [ 9.981596][ T196] CPU: 2 UID: 0 PID: 196 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.981601][ T196] Tainted: [W]=WARN [ 9.981602][ T196] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.981604][ T196] Call Trace: [ 9.981606][ T196] [ 9.981608][ T196] dump_stack_lvl+0x6f/0xa0 [ 9.981616][ T196] __might_resched.cold+0x1fe/0x2c1 [ 9.981622][ T196] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.981627][ T196] ? __kmalloc_noprof+0xdb/0x760 [ 9.981633][ T196] __kmalloc_noprof+0x443/0x760 [ 9.981636][ T196] ? alloc_buf.isra.0+0x4b/0x260 [ 9.981646][ T196] ? do_raw_spin_unlock+0x59/0x250 [ 9.981649][ T196] alloc_buf.isra.0+0x4b/0x260 [ 9.981654][ T196] put_chars+0x1e1/0x2f0 [ 9.981658][ T196] ? __send_to_port+0x420/0x420 [ 9.981659][ T196] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.981664][ T196] ? validate_chain+0x38b/0xc20 [ 9.981672][ T196] hvc_console_print+0x292/0x780 [ 9.981684][ T196] ? hvc_write+0x3a0/0x3a0 [ 9.981687][ T196] ? rcu_is_watching+0x16/0xd0 [ 9.981690][ T196] ? lock_acquire+0x13c/0x160 [ 9.981697][ T196] console_emit_next_record+0x22f/0x4c0 [ 9.981702][ T196] ? devkmsg_read+0x4b0/0x4b0 [ 9.981705][ T196] ? console_flush_one_record+0x106/0x710 [ 9.981709][ T196] ? rcu_is_watching+0x16/0xd0 [ 9.981712][ T196] ? lock_acquire+0x13c/0x160 [ 9.981718][ T196] console_flush_one_record+0x46f/0x710 [ 9.981725][ T196] ? console_emit_next_record+0x4c0/0x4c0 [ 9.981727][ T196] ? __lock_acquire+0x518/0xc20 [ 9.981735][ T196] console_unlock+0xee/0x1f0 [ 9.981739][ T196] ? console_flush_one_record+0x710/0x710 [ 9.981742][ T196] ? rcu_is_watching+0x16/0xd0 [ 9.981744][ T196] ? lock_acquire+0xe0/0x160 [ 9.981750][ T196] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.981752][ T196] ? vprintk_emit+0x320/0x3e0 [ 9.981757][ T196] vprintk_emit+0x37c/0x3e0 [ 9.981761][ T196] ? wake_up_klogd_work_func+0x90/0x90 [ 9.981766][ T196] ? __lock_acquire+0x518/0xc20 [ 9.981772][ T196] _printk+0xc7/0x100 [ 9.981777][ T196] ? snapshot_read.cold+0x21/0x21 [ 9.981781][ T196] ? do_raw_spin_lock+0x131/0x280 [ 9.981784][ T196] ? __rwlock_init+0x150/0x150 [ 9.981790][ T196] ? do_raw_spin_lock+0x131/0x280 [ 9.981794][ T196] do_exit.cold+0x82/0x9c [ 9.981799][ T196] ? exit_notify+0x890/0x890 [ 9.981801][ T196] ? __lock_release.isra.0+0x69/0x1a0 [ 9.981805][ T196] ? rcu_is_watching+0x16/0xd0 [ 9.981811][ T196] do_group_exit+0xb8/0x370 [ 9.981815][ T196] __x64_sys_exit_group+0x3c/0x50 [ 9.981818][ T196] x64_sys_call+0x1567/0x1570 [ 9.981821][ T196] do_syscall_64+0xff/0x530 [ 9.981826][ T196] ? exc_page_fault+0xee/0x100 [ 9.981830][ T196] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.981833][ T196] RIP: 0033:0x7f570f3d61b8 [ 9.981836][ T196] Code: Unable to access opcode bytes at 0x7f570f3d618e. [ 9.981838][ T196] RSP: 002b:00007ffdbb6bb518 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.981841][ T196] RAX: ffffffffffffffda RBX: 00007f570f506f88 RCX: 00007f570f3d61b8 [ 9.981842][ T196] RDX: 00007f570f120fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.981844][ T196] RBP: 00007ffdbb6bb570 R08: 0000000000000000 R09: 0000000000000000 [ 9.981845][ T196] R10: 00007ffdbb6bb330 R11: 0000000000000246 R12: 0000000000000001 [ 9.981846][ T196] R13: 0000000000000000 R14: 00007f570f505680 R15: 00007f570f506fa0 [ 9.981858][ T196]