BUG: unable to handle kernel NULL pointer dereference at           (null)
IP: [<ffffffff8127cd2e>] scsi_times_out+0xe/0x2e0
PGD 2149ec067 PUD 214265067 PMD 0 
Oops: 0000 [#1] SMP 
Modules linked in: x86_pkg_temp_thermal kvm_intel kvm nfsd ehci_pci ehci_hcd crct10dif_pclmul serio_raw parport_pc auth_rpcgss oid_registry exportfs nfs lockd sunrpc binfmt_misc fuse lp parport ext4 crc16 jbd2 usbhid ses xhci_hcd r8169 usbcore usb_common
CPU: 3 PID: 0 Comm: swapper/3 Not tainted 3.17.0-rc3 #69
Hardware name: Gigabyte Technology Co., Ltd. Z97M-D3H/Z97M-D3H, BIOS F5 05/30/2014
task: ffff88021513e090 ti: ffff88021518c000 task.ti: ffff88021518c000
RIP: 0010:[<ffffffff8127cd2e>]  [<ffffffff8127cd2e>] scsi_times_out+0xe/0x2e0
RSP: 0018:ffff88021fb83e10  EFLAGS: 00010282
RAX: ffffffff8127cd20 RBX: 0000000000000000 RCX: ffff8800d3dc8d40
RDX: ffff88020fe9c0c8 RSI: 0000000000002007 RDI: ffff8800d3dc8c00
RBP: ffff88020fe9c0c8 R08: ffff880037970088 R09: ffff880037970000
R10: ffff88021e8024e8 R11: 0000000000000002 R12: 0000000000000449
R13: ffff880037970000 R14: ffff88021fb83ea8 R15: ffff88021520c000
FS:  0000000000000000(0000) GS:ffff88021fb80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000214321000 CR4: 00000000001407e0
Stack:
 ffff8800d3dc8c00 ffff88020fe9c0c8 ffffffff8118f1d7 00000000000026fb
 ffff88020fe9d400 ffffffff811905db ffff880214fb33c0 ffff880037970000
 ffffffff81190570 ffff88021fb83ea8 0000000000000020 ffffffff81193430
Call Trace:
 <IRQ> 
 [<ffffffff8118f1d7>] ? blk_rq_timed_out+0x17/0x80
 [<ffffffff811905db>] ? blk_mq_timeout_check+0x6b/0x90
 [<ffffffff81190570>] ? blk_mq_attempt_merge+0xb0/0xb0
 [<ffffffff81193430>] ? blk_mq_tag_busy_iter+0x50/0x80
 [<ffffffff81190684>] ? blk_mq_rq_timer+0x84/0x120
 [<ffffffff81190600>] ? blk_mq_timeout_check+0x90/0x90
 [<ffffffff81076ea2>] ? call_timer_fn.isra.36+0x12/0x70
 [<ffffffff8107709a>] ? run_timer_softirq+0x19a/0x230
 [<ffffffff8103d6e5>] ? __do_softirq+0xd5/0x1f0
 [<ffffffff8103d995>] ? irq_exit+0x45/0x50
 [<ffffffff8102a6bb>] ? smp_apic_timer_interrupt+0x3b/0x50
 [<ffffffff8140dc4a>] ? apic_timer_interrupt+0x6a/0x70
 <EOI> 
 [<ffffffff81327deb>] ? cpuidle_enter_state+0x4b/0xc0
 [<ffffffff81327ddd>] ? cpuidle_enter_state+0x3d/0xc0
 [<ffffffff810655e7>] ? cpu_startup_entry+0x237/0x270
Code: e8 d8 b3 ff ff 85 c0 75 cd e9 54 ff ff ff 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 be 07 20 00 00 53 48 8b 9f f8 00 00 00 <48> 8b 03 48 89 df 48 8b 28 e8 24 ac ff ff 83 bd 54 01 00 00 ff 
RIP  [<ffffffff8127cd2e>] scsi_times_out+0xe/0x2e0
 RSP <ffff88021fb83e10>
CR2: 0000000000000000
---[ end trace 659752a390e3d62e ]---
Kernel panic - not syncing: Fatal exception in interrupt
Kernel Offset: 0x0 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffff9fffffff)
---[ end Kernel panic - not syncing: Fatal exception in interrupt