[ 17.959930][ T205] (udev-worker) (205) used greatest stack depth: 22696 bytes left [ 17.959945][ T205] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 17.959947][ T205] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 205, name: (udev-worker) [ 17.959949][ T205] preempt_count: 2, expected: 0 [ 17.959949][ T205] RCU nest depth: 0, expected: 0 [ 17.959950][ T205] locks held by (udev-worker)/205: 5, last CPU#0: [ 17.959952][ T205] #0: ffffffffb24167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 17.959964][ T205] #1: ffffffffb257ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 17.959968][ T205] #2: ffffffffb257de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 17.959973][ T205] #3: ffffffffb249d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 17.959977][ T205] #4: ffffffffb249d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 17.959981][ T205] irq event stamp: 927290 [ 17.959982][ T205] hardirqs last enabled at (927289): [] __down_trylock_console_sem+0x86/0xa0 [ 17.959985][ T205] hardirqs last disabled at (927290): [] console_emit_next_record+0x3d4/0x4c0 [ 17.959987][ T205] softirqs last enabled at (927220): [] netlink_release+0x17b/0xcf0 [ 17.959991][ T205] softirqs last disabled at (927218): [] netlink_release+0xd2/0xcf0 [ 17.959994][ T205] Preemption disabled at: [ 17.959995][ T205] [<0000000000000000>] 0x0 [ 17.960001][ T205] CPU: 0 UID: 0 PID: 205 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 17.960005][ T205] Tainted: [W]=WARN [ 17.960006][ T205] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.960007][ T205] Call Trace: [ 17.960009][ T205] [ 17.960011][ T205] dump_stack_lvl+0x6f/0xa0 [ 17.960017][ T205] __might_resched.cold+0x1fe/0x2c1 [ 17.960022][ T205] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 17.960026][ T205] ? __kmalloc_noprof+0xdb/0x760 [ 17.960030][ T205] __kmalloc_noprof+0x443/0x760 [ 17.960032][ T205] ? alloc_buf.isra.0+0x4b/0x260 [ 17.960038][ T205] ? do_raw_spin_unlock+0x59/0x250 [ 17.960041][ T205] alloc_buf.isra.0+0x4b/0x260 [ 17.960044][ T205] put_chars+0x1e1/0x2f0 [ 17.960046][ T205] ? __send_to_port+0x420/0x420 [ 17.960048][ T205] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 17.960051][ T205] ? validate_chain+0x38b/0xc20 [ 17.960056][ T205] hvc_console_print+0x292/0x780 [ 17.960064][ T205] ? hvc_write+0x3a0/0x3a0 [ 17.960066][ T205] ? rcu_is_watching+0x16/0xd0 [ 17.960068][ T205] ? lock_acquire+0x13c/0x160 [ 17.960072][ T205] console_emit_next_record+0x22f/0x4c0 [ 17.960076][ T205] ? devkmsg_read+0x4b0/0x4b0 [ 17.960078][ T205] ? console_flush_one_record+0x106/0x710 [ 17.960081][ T205] ? rcu_is_watching+0x16/0xd0 [ 17.960083][ T205] ? lock_acquire+0x13c/0x160 [ 17.960086][ T205] console_flush_one_record+0x46f/0x710 [ 17.960090][ T205] ? console_emit_next_record+0x4c0/0x4c0 [ 17.960092][ T205] ? __lock_acquire+0x518/0xc20 [ 17.960097][ T205] console_unlock+0xee/0x1f0 [ 17.960100][ T205] ? console_flush_one_record+0x710/0x710 [ 17.960102][ T205] ? rcu_is_watching+0x16/0xd0 [ 17.960104][ T205] ? lock_acquire+0xe0/0x160 [ 17.960107][ T205] ? __down_trylock_console_sem+0x5e/0xa0 [ 17.960109][ T205] ? vprintk_emit+0x320/0x3e0 [ 17.960112][ T205] vprintk_emit+0x37c/0x3e0 [ 17.960115][ T205] ? wake_up_klogd_work_func+0x90/0x90 [ 17.960118][ T205] ? __lock_acquire+0x518/0xc20 [ 17.960121][ T205] _printk+0xc7/0x100 [ 17.960125][ T205] ? snapshot_read.cold+0x21/0x21 [ 17.960128][ T205] ? do_raw_spin_lock+0x131/0x280 [ 17.960130][ T205] ? __rwlock_init+0x150/0x150 [ 17.960134][ T205] ? do_raw_spin_lock+0x131/0x280 [ 17.960137][ T205] do_exit.cold+0x82/0x9c [ 17.960141][ T205] ? exit_notify+0x890/0x890 [ 17.960142][ T205] ? __lock_release.isra.0+0x69/0x1a0 [ 17.960144][ T205] ? rcu_is_watching+0x16/0xd0 [ 17.960148][ T205] do_group_exit+0xb8/0x370 [ 17.960151][ T205] __x64_sys_exit_group+0x3c/0x50 [ 17.960153][ T205] x64_sys_call+0x1567/0x1570 [ 17.960155][ T205] do_syscall_64+0xff/0x530 [ 17.960159][ T205] ? exc_page_fault+0xee/0x100 [ 17.960162][ T205] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.960164][ T205] RIP: 0033:0x7fead5be11b8 [ 17.960166][ T205] Code: Unable to access opcode bytes at 0x7fead5be118e. [ 17.960167][ T205] RSP: 002b:00007ffe5e521c08 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 17.960169][ T205] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fead5be11b8 [ 17.960171][ T205] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 17.960172][ T205] RBP: 00007ffe5e521d90 R08: 0000558d22d9d0a8 R09: 0000000000000000 [ 17.960172][ T205] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 17.960173][ T205] R13: 00007fead543f050 R14: 00007fead6112d9e R15: 0000558d22c2e550 [ 17.960180][ T205]