11 June 2015, 19:50:14 	[ 141.005630] fio[2742]: segfault at 0 ip (null) sp 00007f841ab5aeb8 error 14
11 June 2015, 19:50:14 	in fio[400000+58000]
11 June 2015, 19:50:14 	NULL pointer dereference
11 June 2015, 19:50:14 	at 0000000000000028
11 June 2015, 19:50:14 	[ 141.006282] IP:
11 June 2015, 19:50:14 	[ 141.006316] PGD 107ccc067
11 June 2015, 19:50:14 	PUD 106056067
11 June 2015, 19:50:14 	[ 141.006319] Oops: 0000 [#1]
11 June 2015, 19:50:14 	SMP
11 June 2015, 19:50:14 	nfsd
11 June 2015, 19:50:14 	auth_rpcgss
11 June 2015, 19:50:14 	oid_registry
11 June 2015, 19:50:14 	nfs
11 June 2015, 19:50:14 	lockd
11 June 2015, 19:50:14 	fscache
11 June 2015, 19:50:14 	netconsole
11 June 2015, 19:50:14 	configfs
11 June 2015, 19:50:14 	crct10dif_pclmul
11 June 2015, 19:50:14 	crct10dif_common
11 June 2015, 19:50:14 	ghash_clmulni_intel
11 June 2015, 19:50:14 	aesni_intel
11 June 2015, 19:50:14 	lrw
11 June 2015, 19:50:14 	gf128mul
11 June 2015, 19:50:14 	ablk_helper
11 June 2015, 19:50:14 	psmouse
11 June 2015, 19:50:14 	parport_pc
11 June 2015, 19:50:14 	virtio_console
11 June 2015, 19:50:14 	serio_raw
11 June 2015, 19:50:14 	evdev
11 June 2015, 19:50:14 	pcspkr
11 June 2015, 19:50:14 	processor
11 June 2015, 19:50:14 	thermal_sys
11 June 2015, 19:50:14 	button
11 June 2015, 19:50:14 	ext4
11 June 2015, 19:50:14 	mbcache
11 June 2015, 19:50:14 	ata_generic
11 June 2015, 19:50:14 	virtio_blk
11 June 2015, 19:50:14 	crc32c_intel
11 June 2015, 19:50:14 	floppy
11 June 2015, 19:50:14 	xhci_hcd
11 June 2015, 19:50:14 	libata
11 June 2015, 19:50:14 	virtio_ring
11 June 2015, 19:50:14 	usbcore
11 June 2015, 19:50:14 	usb_common
11 June 2015, 19:50:14 	[ 141.006396] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.16.0-0.bpo.4-amd64 #1 Debian 3.16.7-ckt7-1~bpo70+1
11 June 2015, 19:50:14 	[ 141.006397] Hardware name: SuperMicro Virtual Appliance, BIOS 1.1
11 June 2015, 19:50:14 	[ 141.006403] RIP: 0010:[<ffffffffa015ba38>]
11 June 2015, 19:50:14 	[<ffffffffa015ba38>] ext4_finish_bio+0xd8/0x220 [ext4]
11 June 2015, 19:50:14 	[ 141.006415] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000001000
11 June 2015, 19:50:14 	[ 141.006415] RDX: 000000000000000d RSI: ffffea0010ea6818 RDI: ffff88001c291300
11 June 2015, 19:50:14 	[ 141.006417] R10: 0000000000000002 R11: 0000000000000040 R12: ffff8804a41aaf98
11 June 2015, 19:50:14 	[ 141.006419] FS: 0000000000000000(0000) GS:ffff88001fc00000(0000) knlGS:0000000000000000
11 June 2015, 19:50:14 	[ 141.006420] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
11 June 2015, 19:50:14 	[ 141.006434] Stack:
11 June 2015, 19:50:14 	[ 141.006435] ffffffff0000005e
11 June 2015, 19:50:14 	0000000000000007
11 June 2015, 19:50:14 	ffff88001fdd2ec0
11 June 2015, 19:50:14 	ffff88001c291300
11 June 2015, 19:50:14 	ffff88001d84c240
11 June 2015, 19:50:14 	[ 141.006439] 0000000000000093
11 June 2015, 19:50:14 	ffff88001d84c940
11 June 2015, 19:50:14 	d794c666350eb7d9
11 June 2015, 19:50:14 	[ 141.006442] <IRQ>
11 June 2015, 19:50:14 	[<ffffffffa015c036>] ? ext4_end_bio+0xc6/0x130 [ext4]
11 June 2015, 19:50:14 	[<ffffffff8129dcfb>] ? blk_update_request+0x9b/0x310
11 June 2015, 19:50:14 	[ 141.006488]
11 June 2015, 19:50:14 	[ 141.006494]
11 June 2015, 19:50:14 	[<ffffffff812a76c9>] ? __blk_mq_complete_request+0x79/0x110
11 June 2015, 19:50:14 	[<ffffffffa01461ed>] ? virtblk_done+0x4d/0xb0 [virtio_blk]
11 June 2015, 19:50:14 	[ 141.006506]
11 June 2015, 19:50:14 	[ 141.006512]
11 June 2015, 19:50:14 	[<ffffffff810c4f54>] ? handle_irq_event_percpu+0x54/0x1e0
11 June 2015, 19:50:14 	[<ffffffff810a73aa>] ? update_blocked_averages+0x24a/0x5f0
11 June 2015, 19:50:14 	[ 141.006540]
11 June 2015, 19:50:14 	[ 141.006542]
11 June 2015, 19:50:14 	[<ffffffff810c7f7d>] ? handle_edge_irq+0x7d/0x120
11 June 2015, 19:50:14 	[<ffffffff810175ed>] ? handle_irq+0x1d/0x30
11 June 2015, 19:50:14 	[ 141.006559]
11 June 2015, 19:50:14 	[ 141.006579]
11 June 2015, 19:50:15 	[ 141.006582]
11 June 2015, 19:50:15 	[<ffffffff81072bf8>] ? __do_softirq+0x88/0x2e0
11 June 2015, 19:50:15 	[<ffffffff81072b8d>] ? __do_softirq+0x1d/0x2e0
11 June 2015, 19:50:15 	[ 141.006592]
11 June 2015, 19:50:15 	[ 141.006600]
11 June 2015, 19:50:15 	[<ffffffff810730a6>] ? irq_exit+0x86/0xb0
11 June 2015, 19:50:15 	[<ffffffff8154d1d6>] ? do_IRQ+0x66/0x110
11 June 2015, 19:50:15 	[<ffffffff8154b06d>] ? common_interrupt+0x6d/0x6d
11 June 2015, 19:50:15 	[ 141.006609] <EOI>
11 June 2015, 19:50:15 	[ 141.006616]
11 June 2015, 19:50:15 	[ 141.006619]
11 June 2015, 19:50:15 	[<ffffffff8101f6b2>] ? default_idle+0x22/0xf0
11 June 2015, 19:50:15 	[<ffffffff810b1818>] ? cpu_startup_entry+0x2e8/0x4b0
11 June 2015, 19:50:15 	[ 141.006624]
11 June 2015, 19:50:15 	[ 141.006629]
11 June 2015, 19:50:15 	[<ffffffff81900a1a>] ? set_init_arg+0x4d/0x4d
11 June 2015, 19:50:15 	[<ffffffff81900120>] ? early_idt_handlers+0x120/0x120
11 June 2015, 19:50:15 	[<ffffffff8190072b>] ? x86_64_start_kernel+0x150/0x15f
11 June 2015, 19:50:15 	[ 141.006635] Code:
11 June 2015, 19:50:15 	4c 89 e3 eb 26 66 0f 1f 44 00 00 48 03 43 20 48 39 c8 77 25 f0 80 63 01 fe 45 85 c0 0f 85 a1 00 00 00 48 8b 5b 08 49 39 dc 74 26 <48> 8b 43 28 25 ff 0f 00 00 4c 39 e8 73 d2 48 8b 03 48 8b 5b 08
11 June 2015, 19:50:15 	[<ffffffffa015ba38>] ext4_finish_bio+0xd8/0x220 [ext4]
11 June 2015, 19:50:15 	[ 141.006682] CR2: 0000000000000028
11 June 2015, 19:50:15 	[ 141.006705] Kernel panic - not syncing: Fatal exception in interrupt
11 June 2015, 19:50:15 	[ 141.009665] Kernel Offset: 0x0 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffff9fffffff)
11 June 2015, 19:50:15 	[ 141.009665] ---[ end Kernel panic - not syncing: Fatal exception in interrupt