[ 10.219048][ T197] ip (197) used greatest stack depth: 24376 bytes left [ 10.219065][ T197] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.219067][ T197] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 197, name: ip [ 10.219068][ T197] preempt_count: 2, expected: 0 [ 10.219069][ T197] RCU nest depth: 0, expected: 0 [ 10.219070][ T197] locks held by ip/197: 5, last CPU#1: [ 10.219072][ T197] #0: ffffffffa6a167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.219083][ T197] #1: ffffffffa6b7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.219087][ T197] #2: ffffffffa6b7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.219092][ T197] #3: ffffffffa6a9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.219096][ T197] #4: ffffffffa6a9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.219099][ T197] irq event stamp: 20178 [ 10.219100][ T197] hardirqs last enabled at (20177): [] __down_trylock_console_sem+0x86/0xa0 [ 10.219103][ T197] hardirqs last disabled at (20178): [] console_emit_next_record+0x3d4/0x4c0 [ 10.219106][ T197] softirqs last enabled at (19190): [] handle_softirqs+0x67c/0x900 [ 10.219108][ T197] softirqs last disabled at (19181): [] __irq_exit_rcu+0x145/0x1c0 [ 10.219111][ T197] Preemption disabled at: [ 10.219111][ T197] [<0000000000000000>] 0x0 [ 10.219118][ T197] CPU: 1 UID: 0 PID: 197 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.219121][ T197] Tainted: [W]=WARN [ 10.219122][ T197] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.219124][ T197] Call Trace: [ 10.219125][ T197] [ 10.219126][ T197] dump_stack_lvl+0x6f/0xa0 [ 10.219133][ T197] __might_resched.cold+0x1fe/0x2c1 [ 10.219138][ T197] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.219142][ T197] ? __kmalloc_noprof+0xdb/0x760 [ 10.219146][ T197] __kmalloc_noprof+0x443/0x760 [ 10.219148][ T197] ? alloc_buf.isra.0+0x4b/0x260 [ 10.219154][ T197] ? do_raw_spin_unlock+0x59/0x250 [ 10.219157][ T197] alloc_buf.isra.0+0x4b/0x260 [ 10.219161][ T197] put_chars+0x1e1/0x2f0 [ 10.219163][ T197] ? __send_to_port+0x420/0x420 [ 10.219165][ T197] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.219168][ T197] ? validate_chain+0x38b/0xc20 [ 10.219174][ T197] hvc_console_print+0x292/0x780 [ 10.219181][ T197] ? hvc_write+0x3a0/0x3a0 [ 10.219184][ T197] ? rcu_is_watching+0x16/0xd0 [ 10.219186][ T197] ? lock_acquire+0x13c/0x160 [ 10.219189][ T197] console_emit_next_record+0x22f/0x4c0 [ 10.219193][ T197] ? devkmsg_read+0x4b0/0x4b0 [ 10.219195][ T197] ? console_flush_one_record+0x106/0x710 [ 10.219198][ T197] ? rcu_is_watching+0x16/0xd0 [ 10.219200][ T197] ? lock_acquire+0x13c/0x160 [ 10.219204][ T197] console_flush_one_record+0x46f/0x710 [ 10.219217][ T197] ? console_emit_next_record+0x4c0/0x4c0 [ 10.219219][ T197] ? __lock_acquire+0x518/0xc20 [ 10.219224][ T197] console_unlock+0xee/0x1f0 [ 10.219227][ T197] ? console_flush_one_record+0x710/0x710 [ 10.219229][ T197] ? rcu_is_watching+0x16/0xd0 [ 10.219231][ T197] ? lock_acquire+0xe0/0x160 [ 10.219234][ T197] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.219236][ T197] ? vprintk_emit+0x320/0x3e0 [ 10.219239][ T197] vprintk_emit+0x37c/0x3e0 [ 10.219242][ T197] ? wake_up_klogd_work_func+0x90/0x90 [ 10.219245][ T197] ? __lock_acquire+0x518/0xc20 [ 10.219248][ T197] _printk+0xc7/0x100 [ 10.219252][ T197] ? snapshot_read.cold+0x21/0x21 [ 10.219255][ T197] ? do_raw_spin_lock+0x131/0x280 [ 10.219258][ T197] ? __rwlock_init+0x150/0x150 [ 10.219261][ T197] ? do_raw_spin_lock+0x131/0x280 [ 10.219264][ T197] do_exit.cold+0x82/0x9c [ 10.219268][ T197] ? exit_notify+0x890/0x890 [ 10.219269][ T197] ? __lock_release.isra.0+0x69/0x1a0 [ 10.219272][ T197] ? rcu_is_watching+0x16/0xd0 [ 10.219275][ T197] do_group_exit+0xb8/0x370 [ 10.219278][ T197] __x64_sys_exit_group+0x3c/0x50 [ 10.219280][ T197] x64_sys_call+0x1567/0x1570 [ 10.219283][ T197] do_syscall_64+0xff/0x530 [ 10.219287][ T197] ? exc_page_fault+0xee/0x100 [ 10.219289][ T197] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.219292][ T197] RIP: 0033:0x7f833a5941b8 [ 10.219294][ T197] Code: Unable to access opcode bytes at 0x7f833a59418e. [ 10.219295][ T197] RSP: 002b:00007ffed6cd9c48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.219297][ T197] RAX: ffffffffffffffda RBX: 00007f833a6c4f88 RCX: 00007f833a5941b8 [ 10.219298][ T197] RDX: 00007f833a2defc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.219299][ T197] RBP: 00007ffed6cd9ca0 R08: 0000000000000000 R09: 0000000000000050 [ 10.219300][ T197] R10: 00007ffed6cd9a60 R11: 0000000000000246 R12: 0000000000000001 [ 10.219301][ T197] R13: 0000000000000000 R14: 00007f833a6c3680 R15: 00007f833a6c4fa0 [ 10.219308][ T197] [ 10.439990][ T202] ip (202) used greatest stack depth: 24208 bytes left