[ 10.889778][ T197] ip (197) used greatest stack depth: 23816 bytes left [ 10.889801][ T197] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.889803][ T197] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 197, name: ip [ 10.889806][ T197] preempt_count: 2, expected: 0 [ 10.889807][ T197] RCU nest depth: 0, expected: 0 [ 10.889808][ T197] locks held by ip/197: 5, last CPU#3: [ 10.889811][ T197] #0: ffffffffb3a167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.889826][ T197] #1: ffffffffb3b7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.889833][ T197] #2: ffffffffb3b7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.889839][ T197] #3: ffffffffb3a9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.889845][ T197] #4: ffffffffb3a9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.889857][ T197] irq event stamp: 47198 [ 10.889859][ T197] hardirqs last enabled at (47197): [] __down_trylock_console_sem+0x86/0xa0 [ 10.889863][ T197] hardirqs last disabled at (47198): [] console_emit_next_record+0x3d4/0x4c0 [ 10.889866][ T197] softirqs last enabled at (46998): [] handle_softirqs+0x67c/0x900 [ 10.889869][ T197] softirqs last disabled at (46991): [] __irq_exit_rcu+0x145/0x1c0 [ 10.889872][ T197] Preemption disabled at: [ 10.889873][ T197] [<0000000000000000>] 0x0 [ 10.889882][ T197] CPU: 3 UID: 0 PID: 197 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.889887][ T197] Tainted: [W]=WARN [ 10.889888][ T197] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.889891][ T197] Call Trace: [ 10.889893][ T197] [ 10.889895][ T197] dump_stack_lvl+0x6f/0xa0 [ 10.889904][ T197] __might_resched.cold+0x1fe/0x2c1 [ 10.889910][ T197] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.889916][ T197] ? __kmalloc_noprof+0xdb/0x760 [ 10.889923][ T197] __kmalloc_noprof+0x443/0x760 [ 10.889926][ T197] ? alloc_buf.isra.0+0x4b/0x260 [ 10.889936][ T197] ? do_raw_spin_unlock+0x59/0x250 [ 10.889940][ T197] alloc_buf.isra.0+0x4b/0x260 [ 10.889945][ T197] put_chars+0x1e1/0x2f0 [ 10.889950][ T197] ? __send_to_port+0x420/0x420 [ 10.889952][ T197] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.889957][ T197] ? validate_chain+0x38b/0xc20 [ 10.889967][ T197] hvc_console_print+0x292/0x780 [ 10.889979][ T197] ? hvc_write+0x3a0/0x3a0 [ 10.889983][ T197] ? rcu_is_watching+0x16/0xd0 [ 10.889986][ T197] ? lock_acquire+0x13c/0x160 [ 10.889993][ T197] console_emit_next_record+0x22f/0x4c0 [ 10.889999][ T197] ? devkmsg_read+0x4b0/0x4b0 [ 10.890002][ T197] ? console_flush_one_record+0x106/0x710 [ 10.890007][ T197] ? rcu_is_watching+0x16/0xd0 [ 10.890010][ T197] ? lock_acquire+0x13c/0x160 [ 10.890017][ T197] console_flush_one_record+0x46f/0x710 [ 10.890024][ T197] ? console_emit_next_record+0x4c0/0x4c0 [ 10.890027][ T197] ? __lock_acquire+0x518/0xc20 [ 10.890036][ T197] console_unlock+0xee/0x1f0 [ 10.890041][ T197] ? console_flush_one_record+0x710/0x710 [ 10.890043][ T197] ? rcu_is_watching+0x16/0xd0 [ 10.890046][ T197] ? lock_acquire+0xe0/0x160 [ 10.890053][ T197] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.890055][ T197] ? vprintk_emit+0x320/0x3e0 [ 10.890060][ T197] vprintk_emit+0x37c/0x3e0 [ 10.890066][ T197] ? wake_up_klogd_work_func+0x90/0x90 [ 10.890071][ T197] ? __lock_acquire+0x518/0xc20 [ 10.890077][ T197] _printk+0xc7/0x100 [ 10.890082][ T197] ? snapshot_read.cold+0x21/0x21 [ 10.890087][ T197] ? do_raw_spin_lock+0x131/0x280 [ 10.890091][ T197] ? __rwlock_init+0x150/0x150 [ 10.890098][ T197] ? do_raw_spin_lock+0x131/0x280 [ 10.890102][ T197] do_exit.cold+0x82/0x9c [ 10.890107][ T197] ? exit_notify+0x890/0x890 [ 10.890109][ T197] ? __lock_release.isra.0+0x69/0x1a0 [ 10.890114][ T197] ? rcu_is_watching+0x16/0xd0 [ 10.890121][ T197] do_group_exit+0xb8/0x370 [ 10.890126][ T197] __x64_sys_exit_group+0x3c/0x50 [ 10.890129][ T197] x64_sys_call+0x1567/0x1570 [ 10.890132][ T197] do_syscall_64+0xff/0x530 [ 10.890137][ T197] ? exc_page_fault+0xee/0x100 [ 10.890142][ T197] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.890145][ T197] RIP: 0033:0x7fef1a3e11b8 [ 10.890148][ T197] Code: Unable to access opcode bytes at 0x7fef1a3e118e. [ 10.890150][ T197] RSP: 002b:00007ffc0f17d728 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.890153][ T197] RAX: ffffffffffffffda RBX: 00007fef1a511f88 RCX: 00007fef1a3e11b8 [ 10.890155][ T197] RDX: 00007fef1a12bfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.890157][ T197] RBP: 00007ffc0f17d780 R08: 0000000000000000 R09: 0000000000000050 [ 10.890158][ T197] R10: 00007ffc0f17d540 R11: 0000000000000246 R12: 0000000000000001 [ 10.890159][ T197] R13: 0000000000000000 R14: 00007fef1a510680 R15: 00007fef1a511fa0 [ 10.890172][ T197] [ 11.311698][ T206] ip (206) used greatest stack depth: 23424 bytes left