[ 9.485694][ T191] ip (191) used greatest stack depth: 24072 bytes left [ 9.485710][ T191] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.485712][ T191] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 191, name: ip [ 9.485714][ T191] preempt_count: 2, expected: 0 [ 9.485714][ T191] RCU nest depth: 0, expected: 0 [ 9.485715][ T191] locks held by ip/191: 5, last CPU#0: [ 9.485717][ T191] #0: ffffffffbc202f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 9.485729][ T191] #1: ffffffffbc36a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.485734][ T191] #2: ffffffffbc36a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.485737][ T191] #3: ffffffffbc289de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.485740][ T191] #4: ffffffffbc289ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.485744][ T191] irq event stamp: 23892 [ 9.485744][ T191] hardirqs last enabled at (23891): [] __down_trylock_console_sem+0x86/0xa0 [ 9.485748][ T191] hardirqs last disabled at (23892): [] console_emit_next_record+0x3d4/0x4c0 [ 9.485749][ T191] softirqs last enabled at (23516): [] handle_softirqs+0x67c/0x900 [ 9.485752][ T191] softirqs last disabled at (23511): [] __irq_exit_rcu+0x145/0x1c0 [ 9.485754][ T191] Preemption disabled at: [ 9.485755][ T191] [<0000000000000000>] 0x0 [ 9.485761][ T191] CPU: 0 UID: 0 PID: 191 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.485765][ T191] Tainted: [W]=WARN [ 9.485765][ T191] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.485767][ T191] Call Trace: [ 9.485769][ T191] [ 9.485770][ T191] dump_stack_lvl+0x6f/0xa0 [ 9.485776][ T191] __might_resched.cold+0x1fe/0x2c1 [ 9.485780][ T191] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.485783][ T191] ? __kmalloc_noprof+0xdb/0x760 [ 9.485789][ T191] __kmalloc_noprof+0x443/0x760 [ 9.485791][ T191] ? alloc_buf.isra.0+0x4b/0x260 [ 9.485797][ T191] ? do_raw_spin_unlock+0x59/0x250 [ 9.485800][ T191] alloc_buf.isra.0+0x4b/0x260 [ 9.485803][ T191] put_chars+0x1e1/0x2f0 [ 9.485806][ T191] ? __send_to_port+0x420/0x420 [ 9.485813][ T191] hvc_console_print+0x292/0x780 [ 9.485819][ T191] ? hvc_write+0x3a0/0x3a0 [ 9.485822][ T191] ? lock_acquire+0x13c/0x160 [ 9.485826][ T191] console_emit_next_record+0x22f/0x4c0 [ 9.485830][ T191] ? devkmsg_read+0x4b0/0x4b0 [ 9.485831][ T191] ? console_flush_one_record+0x106/0x710 [ 9.485834][ T191] ? rcu_is_watching+0x16/0xd0 [ 9.485837][ T191] ? lock_acquire+0x13c/0x160 [ 9.485841][ T191] console_flush_one_record+0x46f/0x710 [ 9.485845][ T191] ? console_emit_next_record+0x4c0/0x4c0 [ 9.485846][ T191] ? __lock_acquire+0x518/0xc20 [ 9.485851][ T191] console_unlock+0xee/0x1f0 [ 9.485854][ T191] ? console_flush_one_record+0x710/0x710 [ 9.485855][ T191] ? rcu_is_watching+0x16/0xd0 [ 9.485857][ T191] ? lock_acquire+0x60/0x160 [ 9.485861][ T191] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.485863][ T191] ? vprintk_emit+0x320/0x3e0 [ 9.485865][ T191] vprintk_emit+0x37c/0x3e0 [ 9.485869][ T191] ? wake_up_klogd_work_func+0x90/0x90 [ 9.485871][ T191] ? __lock_acquire+0x518/0xc20 [ 9.485875][ T191] _printk+0xc7/0x100 [ 9.485879][ T191] ? snapshot_read.cold+0x21/0x21 [ 9.485881][ T191] ? do_raw_spin_lock+0x131/0x280 [ 9.485884][ T191] ? __rwlock_init+0x150/0x150 [ 9.485888][ T191] ? do_raw_spin_lock+0x131/0x280 [ 9.485891][ T191] do_exit.cold+0x82/0x9c [ 9.485894][ T191] ? exit_notify+0x890/0x890 [ 9.485896][ T191] ? __lock_release.isra.0+0x69/0x1a0 [ 9.485899][ T191] ? rcu_is_watching+0x16/0xd0 [ 9.485902][ T191] do_group_exit+0xb8/0x370 [ 9.485905][ T191] __x64_sys_exit_group+0x3c/0x50 [ 9.485907][ T191] x64_sys_call+0x1567/0x1570 [ 9.485910][ T191] do_syscall_64+0x10e/0x570 [ 9.485913][ T191] ? exc_page_fault+0xee/0x100 [ 9.485917][ T191] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.485919][ T191] RIP: 0033:0x7f281ebe11b8 [ 9.485921][ T191] Code: Unable to access opcode bytes at 0x7f281ebe118e. [ 9.485922][ T191] RSP: 002b:00007ffd03cd3398 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.485924][ T191] RAX: ffffffffffffffda RBX: 00007f281ed11f88 RCX: 00007f281ebe11b8 [ 9.485926][ T191] RDX: 00007f281e92bfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.485926][ T191] RBP: 00007ffd03cd33f0 R08: 0000000000000000 R09: 0000000000000050 [ 9.485927][ T191] R10: 00007ffd03cd31b0 R11: 0000000000000246 R12: 0000000000000001 [ 9.485928][ T191] R13: 0000000000000000 R14: 00007f281ed10680 R15: 00007f281ed11fa0 [ 9.485935][ T191]