[ 2249.430040] BUG: unable to handle kernel paging request at 000000000000a578
[ 2249.430250] PGD 0 P4D 0
[ 2249.430278] Oops: 0002 [#1] PREEMPT SMP DEBUG_PAGEALLOC
[ 2249.430327] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G O --------- - - 4.18.0 #12
[ 2249.430408] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-1.fc39 04/01/2014
[ 2249.430488] RIP: 0010:expire_timers+0x6a/0x1b0
[ 2249.430549] Code: 5d 40 0f 1f 44 00 00 65 8b 05 42 5f eb 7c 89 c0 49 0f a3 45 00 0f 82 e9 00 00 00 48 8b 03 48 8b 53 08 48 85 c0 48 89 02 74 04 <48> 89 50 08 f6 43 22 20 48 c7 43 08 00 00 00 00 48 89 ef 4c 89 3b
[ 2249.430709] RSP: 0018:ffff9a92a3905ed8 EFLAGS: 00010002
[ 2249.430756] RAX: 000000000000a570 RBX: ffff9a91455d9620 RCX: 0000000000000200
[ 2249.430825] RDX: ffff9a92a3905f18 RSI: ffff9a92a3905f18 RDI: ffff9a92a3905ecf
[ 2249.430910] RBP: ffff9a92a3931e40 R08: ffff9a91455d9620 R09: 0000000000000001
[ 2249.430979] R10: ffff9a92a3931ea0 R11: ffff9a92a3905f20 R12: ffff9a92a3905f18
[ 2249.431048] R13: ffffffff84596ac0 R14: 0000000000000001 R15: dead000000000200
[ 2249.431117] FS: 0000000000000000(0000) GS:ffff9a92a3900000(0000) knlGS:0000000000000000
[ 2249.431185] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2249.431243] CR2: 000000000000a578 CR3: 0000000106f44000 CR4: 0000000000350ea0
[ 2249.431314] Call Trace:
[ 2249.431364] <IRQ>
[ 2249.431391] run_timer_softirq+0x88/0x150
[ 2249.431428] ? kvm_clock_read+0x14/0x30
[ 2249.431465] ? ktime_get+0xa4/0x150
[ 2249.431501] ? rcu_read_lock_held_common+0x9/0x30
[ 2249.431569] __do_softirq+0xd2/0x4cd
[ 2249.431608] irq_exit_rcu+0xda/0xe0
[ 2249.431646] irq_exit+0x5/0x20
[ 2249.431683] smp_apic_timer_interrupt+0xbf/0x290
[ 2249.431731] apic_timer_interrupt+0xf/0x20
[ 2249.431768] </IRQ>
Bug
Minor