[ 9.174530][ T199] ip (199) used greatest stack depth: 23736 bytes left [ 9.174546][ T199] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.174548][ T199] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 199, name: ip [ 9.174549][ T199] preempt_count: 2, expected: 0 [ 9.174550][ T199] RCU nest depth: 0, expected: 0 [ 9.174551][ T199] locks held by ip/199: 5, last CPU#2: [ 9.174553][ T199] #0: ffffffff996167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.174564][ T199] #1: ffffffff9977ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.174569][ T199] #2: ffffffff9977de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.174575][ T199] #3: ffffffff9969d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.174578][ T199] #4: ffffffff9969d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.174582][ T199] irq event stamp: 20530 [ 9.174583][ T199] hardirqs last enabled at (20529): [] __down_trylock_console_sem+0x86/0xa0 [ 9.174586][ T199] hardirqs last disabled at (20530): [] console_emit_next_record+0x3d4/0x4c0 [ 9.174588][ T199] softirqs last enabled at (19784): [] handle_softirqs+0x67c/0x900 [ 9.174590][ T199] softirqs last disabled at (19779): [] __irq_exit_rcu+0x145/0x1c0 [ 9.174592][ T199] Preemption disabled at: [ 9.174593][ T199] [<0000000000000000>] 0x0 [ 9.174600][ T199] CPU: 2 UID: 0 PID: 199 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.174603][ T199] Tainted: [W]=WARN [ 9.174604][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.174605][ T199] Call Trace: [ 9.174607][ T199] [ 9.174608][ T199] dump_stack_lvl+0x6f/0xa0 [ 9.174615][ T199] __might_resched.cold+0x1fe/0x2c1 [ 9.174619][ T199] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.174623][ T199] ? __kmalloc_noprof+0xdb/0x760 [ 9.174628][ T199] __kmalloc_noprof+0x443/0x760 [ 9.174630][ T199] ? alloc_buf.isra.0+0x4b/0x260 [ 9.174637][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 9.174639][ T199] alloc_buf.isra.0+0x4b/0x260 [ 9.174643][ T199] put_chars+0x1e1/0x2f0 [ 9.174645][ T199] ? __send_to_port+0x420/0x420 [ 9.174646][ T199] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.174650][ T199] ? validate_chain+0x38b/0xc20 [ 9.174655][ T199] hvc_console_print+0x292/0x780 [ 9.174662][ T199] ? hvc_write+0x3a0/0x3a0 [ 9.174665][ T199] ? rcu_is_watching+0x16/0xd0 [ 9.174667][ T199] ? lock_acquire+0x13c/0x160 [ 9.174671][ T199] console_emit_next_record+0x22f/0x4c0 [ 9.174675][ T199] ? devkmsg_read+0x4b0/0x4b0 [ 9.174677][ T199] ? console_flush_one_record+0x106/0x710 [ 9.174680][ T199] ? rcu_is_watching+0x16/0xd0 [ 9.174682][ T199] ? lock_acquire+0x13c/0x160 [ 9.174686][ T199] console_flush_one_record+0x46f/0x710 [ 9.174690][ T199] ? console_emit_next_record+0x4c0/0x4c0 [ 9.174691][ T199] ? __lock_acquire+0x518/0xc20 [ 9.174697][ T199] console_unlock+0xee/0x1f0 [ 9.174699][ T199] ? console_flush_one_record+0x710/0x710 [ 9.174701][ T199] ? rcu_is_watching+0x16/0xd0 [ 9.174703][ T199] ? lock_acquire+0xe0/0x160 [ 9.174706][ T199] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.174708][ T199] ? vprintk_emit+0x320/0x3e0 [ 9.174711][ T199] vprintk_emit+0x37c/0x3e0 [ 9.174714][ T199] ? wake_up_klogd_work_func+0x90/0x90 [ 9.174717][ T199] ? __lock_acquire+0x518/0xc20 [ 9.174720][ T199] _printk+0xc7/0x100 [ 9.174724][ T199] ? snapshot_read.cold+0x21/0x21 [ 9.174727][ T199] ? do_raw_spin_lock+0x131/0x280 [ 9.174729][ T199] ? __rwlock_init+0x150/0x150 [ 9.174733][ T199] ? do_raw_spin_lock+0x131/0x280 [ 9.174736][ T199] do_exit.cold+0x82/0x9c [ 9.174739][ T199] ? exit_notify+0x890/0x890 [ 9.174741][ T199] ? __lock_release.isra.0+0x69/0x1a0 [ 9.174744][ T199] ? rcu_is_watching+0x16/0xd0 [ 9.174747][ T199] do_group_exit+0xb8/0x370 [ 9.174750][ T199] __x64_sys_exit_group+0x3c/0x50 [ 9.174752][ T199] x64_sys_call+0x1567/0x1570 [ 9.174754][ T199] do_syscall_64+0xff/0x530 [ 9.174758][ T199] ? exc_page_fault+0xee/0x100 [ 9.174761][ T199] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.174763][ T199] RIP: 0033:0x7f97256661b8 [ 9.174765][ T199] Code: Unable to access opcode bytes at 0x7f972566618e. [ 9.174766][ T199] RSP: 002b:00007fff3aa10538 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.174769][ T199] RAX: ffffffffffffffda RBX: 00007f9725796f88 RCX: 00007f97256661b8 [ 9.174770][ T199] RDX: 00007f97253b0fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.174771][ T199] RBP: 00007fff3aa10590 R08: 0000000000000000 R09: 0000000000000050 [ 9.174772][ T199] R10: 00007fff3aa10350 R11: 0000000000000246 R12: 0000000000000001 [ 9.174772][ T199] R13: 0000000000000000 R14: 00007f9725795680 R15: 00007f9725796fa0 [ 9.174779][ T199]