[ 9.733693][ T188] ip (188) used greatest stack depth: 23760 bytes left [ 9.733709][ T188] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.733711][ T188] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 188, name: ip [ 9.733712][ T188] preempt_count: 2, expected: 0 [ 9.733713][ T188] RCU nest depth: 0, expected: 0 [ 9.733714][ T188] locks held by ip/188: 5, last CPU#1: [ 9.733716][ T188] #0: ffffffffb3e02f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 9.733728][ T188] #1: ffffffffb3f6a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.733732][ T188] #2: ffffffffb3f6a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.733736][ T188] #3: ffffffffb3e89de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.733738][ T188] #4: ffffffffb3e89ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.733742][ T188] irq event stamp: 52308 [ 9.733743][ T188] hardirqs last enabled at (52307): [] __down_trylock_console_sem+0x86/0xa0 [ 9.733746][ T188] hardirqs last disabled at (52308): [] console_emit_next_record+0x3d4/0x4c0 [ 9.733747][ T188] softirqs last enabled at (51772): [] handle_softirqs+0x67c/0x900 [ 9.733750][ T188] softirqs last disabled at (51763): [] __irq_exit_rcu+0x145/0x1c0 [ 9.733753][ T188] Preemption disabled at: [ 9.733753][ T188] [<0000000000000000>] 0x0 [ 9.733760][ T188] CPU: 1 UID: 0 PID: 188 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.733763][ T188] Tainted: [W]=WARN [ 9.733764][ T188] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.733766][ T188] Call Trace: [ 9.733767][ T188] [ 9.733769][ T188] dump_stack_lvl+0x6f/0xa0 [ 9.733774][ T188] __might_resched.cold+0x1fe/0x2c1 [ 9.733778][ T188] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.733781][ T188] ? __kmalloc_noprof+0xdb/0x760 [ 9.733786][ T188] __kmalloc_noprof+0x443/0x760 [ 9.733789][ T188] ? alloc_buf.isra.0+0x4b/0x260 [ 9.733795][ T188] ? do_raw_spin_unlock+0x59/0x250 [ 9.733798][ T188] alloc_buf.isra.0+0x4b/0x260 [ 9.733801][ T188] put_chars+0x1e1/0x2f0 [ 9.733804][ T188] ? __send_to_port+0x420/0x420 [ 9.733810][ T188] hvc_console_print+0x292/0x780 [ 9.733818][ T188] ? hvc_write+0x3a0/0x3a0 [ 9.733821][ T188] ? lock_acquire+0x13c/0x160 [ 9.733825][ T188] console_emit_next_record+0x22f/0x4c0 [ 9.733829][ T188] ? devkmsg_read+0x4b0/0x4b0 [ 9.733830][ T188] ? console_flush_one_record+0x106/0x710 [ 9.733832][ T188] ? rcu_is_watching+0x16/0xd0 [ 9.733836][ T188] ? lock_acquire+0x13c/0x160 [ 9.733840][ T188] console_flush_one_record+0x46f/0x710 [ 9.733843][ T188] ? console_emit_next_record+0x4c0/0x4c0 [ 9.733844][ T188] ? __lock_acquire+0x518/0xc20 [ 9.733849][ T188] console_unlock+0xee/0x1f0 [ 9.733852][ T188] ? console_flush_one_record+0x710/0x710 [ 9.733853][ T188] ? rcu_is_watching+0x16/0xd0 [ 9.733855][ T188] ? lock_acquire+0x60/0x160 [ 9.733858][ T188] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.733860][ T188] ? vprintk_emit+0x320/0x3e0 [ 9.733863][ T188] vprintk_emit+0x37c/0x3e0 [ 9.733866][ T188] ? wake_up_klogd_work_func+0x90/0x90 [ 9.733869][ T188] ? __lock_acquire+0x518/0xc20 [ 9.733872][ T188] _printk+0xc7/0x100 [ 9.733876][ T188] ? snapshot_read.cold+0x21/0x21 [ 9.733878][ T188] ? do_raw_spin_lock+0x131/0x280 [ 9.733881][ T188] ? __rwlock_init+0x150/0x150 [ 9.733885][ T188] ? do_raw_spin_lock+0x131/0x280 [ 9.733888][ T188] do_exit.cold+0x82/0x9c [ 9.733891][ T188] ? exit_notify+0x890/0x890 [ 9.733893][ T188] ? __lock_release.isra.0+0x69/0x1a0 [ 9.733896][ T188] ? rcu_is_watching+0x16/0xd0 [ 9.733899][ T188] do_group_exit+0xb8/0x370 [ 9.733902][ T188] __x64_sys_exit_group+0x3c/0x50 [ 9.733904][ T188] x64_sys_call+0x1567/0x1570 [ 9.733906][ T188] do_syscall_64+0x10e/0x570 [ 9.733910][ T188] ? exc_page_fault+0xee/0x100 [ 9.733913][ T188] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.733915][ T188] RIP: 0033:0x7f92db3661b8 [ 9.733917][ T188] Code: Unable to access opcode bytes at 0x7f92db36618e. [ 9.733918][ T188] RSP: 002b:00007ffc77ebb4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.733920][ T188] RAX: ffffffffffffffda RBX: 00007f92db496f88 RCX: 00007f92db3661b8 [ 9.733922][ T188] RDX: 00007f92db0b0fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.733923][ T188] RBP: 00007ffc77ebb530 R08: 0000000000000000 R09: 0000000000000000 [ 9.733924][ T188] R10: 00007ffc77ebb2f0 R11: 0000000000000246 R12: 0000000000000001 [ 9.733924][ T188] R13: 0000000000000000 R14: 00007f92db495680 R15: 00007f92db496fa0 [ 9.733931][ T188]