[ 9.272976][ T196] ip (196) used greatest stack depth: 23944 bytes left [ 9.272992][ T196] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.272994][ T196] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 196, name: ip [ 9.272995][ T196] preempt_count: 2, expected: 0 [ 9.272996][ T196] RCU nest depth: 0, expected: 0 [ 9.272997][ T196] locks held by ip/196: 5, last CPU#1: [ 9.272999][ T196] #0: ffffffff99c167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.273010][ T196] #1: ffffffff99d7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.273014][ T196] #2: ffffffff99d7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.273019][ T196] #3: ffffffff99c9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.273023][ T196] #4: ffffffff99c9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.273027][ T196] irq event stamp: 18936 [ 9.273028][ T196] hardirqs last enabled at (18935): [] __down_trylock_console_sem+0x86/0xa0 [ 9.273031][ T196] hardirqs last disabled at (18936): [] console_emit_next_record+0x3d4/0x4c0 [ 9.273033][ T196] softirqs last enabled at (18038): [] handle_softirqs+0x67c/0x900 [ 9.273035][ T196] softirqs last disabled at (18031): [] __irq_exit_rcu+0x145/0x1c0 [ 9.273038][ T196] Preemption disabled at: [ 9.273038][ T196] [<0000000000000000>] 0x0 [ 9.273045][ T196] CPU: 1 UID: 0 PID: 196 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.273048][ T196] Tainted: [W]=WARN [ 9.273049][ T196] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.273050][ T196] Call Trace: [ 9.273052][ T196] [ 9.273053][ T196] dump_stack_lvl+0x6f/0xa0 [ 9.273060][ T196] __might_resched.cold+0x1fe/0x2c1 [ 9.273064][ T196] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.273068][ T196] ? __kmalloc_noprof+0xdb/0x760 [ 9.273073][ T196] __kmalloc_noprof+0x443/0x760 [ 9.273075][ T196] ? alloc_buf.isra.0+0x4b/0x260 [ 9.273082][ T196] ? do_raw_spin_unlock+0x59/0x250 [ 9.273084][ T196] alloc_buf.isra.0+0x4b/0x260 [ 9.273088][ T196] put_chars+0x1e1/0x2f0 [ 9.273091][ T196] ? __send_to_port+0x420/0x420 [ 9.273092][ T196] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.273096][ T196] ? validate_chain+0x38b/0xc20 [ 9.273102][ T196] hvc_console_print+0x292/0x780 [ 9.273109][ T196] ? hvc_write+0x3a0/0x3a0 [ 9.273112][ T196] ? rcu_is_watching+0x16/0xd0 [ 9.273114][ T196] ? lock_acquire+0x13c/0x160 [ 9.273118][ T196] console_emit_next_record+0x22f/0x4c0 [ 9.273122][ T196] ? devkmsg_read+0x4b0/0x4b0 [ 9.273124][ T196] ? console_flush_one_record+0x106/0x710 [ 9.273127][ T196] ? rcu_is_watching+0x16/0xd0 [ 9.273129][ T196] ? lock_acquire+0x13c/0x160 [ 9.273133][ T196] console_flush_one_record+0x46f/0x710 [ 9.273137][ T196] ? console_emit_next_record+0x4c0/0x4c0 [ 9.273139][ T196] ? __lock_acquire+0x518/0xc20 [ 9.273144][ T196] console_unlock+0xee/0x1f0 [ 9.273147][ T196] ? console_flush_one_record+0x710/0x710 [ 9.273149][ T196] ? rcu_is_watching+0x16/0xd0 [ 9.273151][ T196] ? lock_acquire+0xe0/0x160 [ 9.273155][ T196] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.273156][ T196] ? vprintk_emit+0x320/0x3e0 [ 9.273159][ T196] vprintk_emit+0x37c/0x3e0 [ 9.273162][ T196] ? wake_up_klogd_work_func+0x90/0x90 [ 9.273165][ T196] ? __lock_acquire+0x518/0xc20 [ 9.273169][ T196] _printk+0xc7/0x100 [ 9.273173][ T196] ? snapshot_read.cold+0x21/0x21 [ 9.273176][ T196] ? do_raw_spin_lock+0x131/0x280 [ 9.273178][ T196] ? __rwlock_init+0x150/0x150 [ 9.273182][ T196] ? do_raw_spin_lock+0x131/0x280 [ 9.273185][ T196] do_exit.cold+0x82/0x9c [ 9.273189][ T196] ? exit_notify+0x890/0x890 [ 9.273190][ T196] ? __lock_release.isra.0+0x69/0x1a0 [ 9.273193][ T196] ? rcu_is_watching+0x16/0xd0 [ 9.273197][ T196] do_group_exit+0xb8/0x370 [ 9.273199][ T196] __x64_sys_exit_group+0x3c/0x50 [ 9.273201][ T196] x64_sys_call+0x1567/0x1570 [ 9.273204][ T196] do_syscall_64+0xff/0x530 [ 9.273208][ T196] ? exc_page_fault+0xee/0x100 [ 9.273211][ T196] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.273213][ T196] RIP: 0033:0x7fd941e5b1b8 [ 9.273215][ T196] Code: Unable to access opcode bytes at 0x7fd941e5b18e. [ 9.273216][ T196] RSP: 002b:00007ffcecbb9de8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.273218][ T196] RAX: ffffffffffffffda RBX: 00007fd941f8bf88 RCX: 00007fd941e5b1b8 [ 9.273220][ T196] RDX: 00007fd941ba5fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.273221][ T196] RBP: 00007ffcecbb9e40 R08: 0000000000000000 R09: 0000000000000050 [ 9.273221][ T196] R10: 00007ffcecbb9c00 R11: 0000000000000246 R12: 0000000000000001 [ 9.273222][ T196] R13: 0000000000000000 R14: 00007fd941f8a680 R15: 00007fd941f8bfa0 [ 9.273229][ T196]