[ 9.816941][ T166] seq-ext_ipv6 (166) used greatest stack depth: 24656 bytes left [ 9.816957][ T166] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.816959][ T166] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 166, name: seq-ext_ipv6 [ 9.816961][ T166] preempt_count: 2, expected: 0 [ 9.816962][ T166] RCU nest depth: 0, expected: 0 [ 9.816963][ T166] locks held by seq-ext_ipv6/166: 5, last CPU#0: [ 9.816964][ T166] #0: ffffffffb48127b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.816976][ T166] #1: ffffffffb4979cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.816981][ T166] #2: ffffffffb4979d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.816985][ T166] #3: ffffffffb4899660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.816988][ T166] #4: ffffffffb4899560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.816992][ T166] irq event stamp: 1398840 [ 9.816993][ T166] hardirqs last enabled at (1398839): [] __down_trylock_console_sem+0x86/0xa0 [ 9.816995][ T166] hardirqs last disabled at (1398840): [] console_emit_next_record+0x3d4/0x4c0 [ 9.816997][ T166] softirqs last enabled at (1398784): [] handle_softirqs+0x67c/0x900 [ 9.816999][ T166] softirqs last disabled at (1398585): [] __irq_exit_rcu+0x145/0x1c0 [ 9.817001][ T166] Preemption disabled at: [ 9.817002][ T166] [<0000000000000000>] 0x0 [ 9.817009][ T166] CPU: 0 UID: 0 PID: 166 Comm: seq-ext_ipv6 Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.817012][ T166] Tainted: [W]=WARN [ 9.817013][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.817015][ T166] Call Trace: [ 9.817016][ T166] [ 9.817018][ T166] dump_stack_lvl+0x6f/0xa0 [ 9.817024][ T166] __might_resched.cold+0x1fe/0x2c1 [ 9.817028][ T166] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.817032][ T166] ? __kmalloc_noprof+0xdb/0x760 [ 9.817037][ T166] __kmalloc_noprof+0x443/0x760 [ 9.817039][ T166] ? alloc_buf.isra.0+0x4b/0x260 [ 9.817045][ T166] ? do_raw_spin_unlock+0x59/0x250 [ 9.817048][ T166] alloc_buf.isra.0+0x4b/0x260 [ 9.817051][ T166] put_chars+0x1e1/0x2f0 [ 9.817054][ T166] ? __send_to_port+0x420/0x420 [ 9.817056][ T166] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.817061][ T166] ? validate_chain+0x38b/0xc20 [ 9.817066][ T166] hvc_console_print+0x292/0x780 [ 9.817072][ T166] ? hvc_write+0x3a0/0x3a0 [ 9.817074][ T166] ? rcu_is_watching+0x16/0xd0 [ 9.817077][ T166] ? lock_acquire+0x13c/0x160 [ 9.817081][ T166] console_emit_next_record+0x22f/0x4c0 [ 9.817084][ T166] ? devkmsg_read+0x4b0/0x4b0 [ 9.817086][ T166] ? console_flush_one_record+0x106/0x710 [ 9.817089][ T166] ? rcu_is_watching+0x16/0xd0 [ 9.817091][ T166] ? lock_acquire+0x13c/0x160 [ 9.817099][ T166] console_flush_one_record+0x46f/0x710 [ 9.817104][ T166] ? console_emit_next_record+0x4c0/0x4c0 [ 9.817105][ T166] ? __lock_acquire+0x518/0xc20 [ 9.817110][ T166] console_unlock+0xee/0x1f0 [ 9.817113][ T166] ? console_flush_one_record+0x710/0x710 [ 9.817115][ T166] ? rcu_is_watching+0x16/0xd0 [ 9.817117][ T166] ? lock_acquire+0x60/0x160 [ 9.817120][ T166] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.817122][ T166] ? vprintk_emit+0x320/0x3e0 [ 9.817125][ T166] vprintk_emit+0x37c/0x3e0 [ 9.817129][ T166] ? wake_up_klogd_work_func+0x90/0x90 [ 9.817132][ T166] ? __lock_acquire+0x518/0xc20 [ 9.817136][ T166] _printk+0xc7/0x100 [ 9.817139][ T166] ? snapshot_read.cold+0x21/0x21 [ 9.817142][ T166] ? do_raw_spin_lock+0x131/0x280 [ 9.817144][ T166] ? __rwlock_init+0x150/0x150 [ 9.817148][ T166] ? do_raw_spin_lock+0x131/0x280 [ 9.817150][ T166] do_exit.cold+0x82/0x9c [ 9.817154][ T166] ? exit_notify+0x890/0x890 [ 9.817155][ T166] ? __lock_release.isra.0+0x69/0x1a0 [ 9.817158][ T166] ? rcu_is_watching+0x16/0xd0 [ 9.817162][ T166] do_group_exit+0xb8/0x370 [ 9.817164][ T166] __x64_sys_exit_group+0x3c/0x50 [ 9.817166][ T166] x64_sys_call+0x1567/0x1570 [ 9.817169][ T166] do_syscall_64+0xff/0x530 [ 9.817172][ T166] ? exc_page_fault+0xee/0x100 [ 9.817175][ T166] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.817177][ T166] RIP: 0033:0x7f9a0d8bb1b8 [ 9.817179][ T166] Code: Unable to access opcode bytes at 0x7f9a0d8bb18e. [ 9.817181][ T166] RSP: 002b:00007ffc6578aff8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.817183][ T166] RAX: ffffffffffffffda RBX: 00007f9a0d9ebf88 RCX: 00007f9a0d8bb1b8 [ 9.817184][ T166] RDX: 00007f9a0d7f8a88 RSI: ffffffffffffff90 RDI: 0000000000000000 [ 9.817185][ T166] RBP: 00007ffc6578b050 R08: 0000000000000000 R09: 0000000000000000 [ 9.817186][ T166] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000417df0 [ 9.817187][ T166] R13: 0000000000000000 R14: 00007f9a0d9ea680 R15: 00007f9a0d9ebfa0 [ 9.817193][ T166]