Re: [Qemu-devel] Why is SeaBIOS used with -kernel?

["Richard W.M. Jones" <rjones@redhat.com>]

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On Thu, Mar 31, 2016 at 06:44:32PM -0400, Kevin O'Connor wrote:
> I think you'll find that if you compile out some features from
> SeaBIOS, it will be of a similar speed to that "minimal BIOS".  Try
> this:
> 
> cd /path/to/seabios/
> echo -e 'CONFIG_USB=n\nCONFIG_DRIVES=n\nCONFIG_KEYBOARD=n\nCONFIG_MOUSE=n\nCONFIG_WRITABLE_UPPERMEMORY=y\nCONFIG_TCGBIOS=n\nCONFIG_PIRTABLE=n\nCONFIG_MPTABLE=n\nCONFIG_SMBIOS=n\nCONFIG_ACPI=n\nCONFIG_DEBUG_LEVEL=0' > .config
> make olddefconfig
> make
> 
> What time do you get with the above stripped down seabios (the
> generated bios is in out/bios.bin)?

It's a bit unexpected: The kernel (not SeaBIOS) crashes or hangs
during virtio-scsi sensing.  See attached.  Any idea what I need to
enable?

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
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[-- Attachment #2: crash.txt --]
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./run test-tool/libguestfs-test-tool 
     ************************************************************
     *                    IMPORTANT NOTICE
     *
     * When reporting bugs, include the COMPLETE, UNEDITED
     * output below in your bug report.
     *
     ************************************************************
LIBGUESTFS_PATH=/home/rjones/d/libguestfs/appliance
LIBGUESTFS_CACHEDIR=/home/rjones/d/libguestfs/tmp
LD_LIBRARY_PATH=/home/rjones/d/libguestfs/ruby/ext/guestfs:/home/rjones/d/libguestfs/src/.libs:/home/rjones/d/libguestfs/java/.libs:/home/rjones/d/libguestfs/gobject/.libs
LIBGUESTFS_TMPDIR=/home/rjones/d/libguestfs/tmp
LIBGUESTFS_HV=/home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64
LIBGUESTFS_BACKEND=direct
PATH=/home/rjones/d/libguestfs/v2v:/home/rjones/d/libguestfs/tools:/home/rjones/d/libguestfs/test-tool:/home/rjones/d/libguestfs/sysprep:/home/rjones/d/libguestfs/sparsify:/home/rjones/d/libguestfs/resize:/home/rjones/d/libguestfs/rescue:/home/rjones/d/libguestfs/p2v:/home/rjones/d/libguestfs/make-fs:/home/rjones/d/libguestfs/inspector:/home/rjones/d/libguestfs/get-kernel:/home/rjones/d/libguestfs/fuse:/home/rjones/d/libguestfs/format:/home/rjones/d/libguestfs/fish:/home/rjones/d/libguestfs/erlang:/home/rjones/d/libguestfs/edit:/home/rjones/d/libguestfs/diff:/home/rjones/d/libguestfs/dib:/home/rjones/d/libguestfs/df:/home/rjones/d/libguestfs/customize:/home/rjones/d/libguestfs/cat:/home/rjones/d/libguestfs/builder:/home/rjones/d/libguestfs/align:/usr/lib64/ccache:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/home/rjones/.local/bin:/home/rjones/bin
XDG_RUNTIME_DIR=/run/user/1000
SELinux: Enforcing
guestfs_get_append: (null)
guestfs_get_autosync: 1
guestfs_get_backend: direct
guestfs_get_backend_settings: []
guestfs_get_cachedir: /home/rjones/d/libguestfs/tmp
guestfs_get_direct: 0
guestfs_get_hv: /home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64
guestfs_get_memsize: 500
guestfs_get_network: 0
guestfs_get_path: /home/rjones/d/libguestfs/appliance
guestfs_get_pgroup: 0
guestfs_get_program: libguestfs-test-tool
guestfs_get_recovery_proc: 1
guestfs_get_selinux: 0
guestfs_get_smp: 1
guestfs_get_sockdir: /run/user/1000
guestfs_get_tmpdir: /home/rjones/d/libguestfs/tmp
guestfs_get_trace: 0
guestfs_get_verbose: 1
host_cpu: x86_64
Launching appliance, timeout set to 600 seconds.
libguestfs: launch: program=libguestfs-test-tool
libguestfs: launch: version=1.33.16
libguestfs: launch: backend registered: unix
libguestfs: launch: backend registered: uml
libguestfs: launch: backend registered: libvirt
libguestfs: launch: backend registered: direct
libguestfs: launch: backend=direct
libguestfs: launch: tmpdir=/home/rjones/d/libguestfs/tmp/libguestfsT8B1IH
libguestfs: launch: umask=0002
libguestfs: launch: euid=1000
libguestfs: begin building supermin appliance
libguestfs: run supermin
libguestfs: command: run: /usr/bin/supermin
libguestfs: command: run: \ --build
libguestfs: command: run: \ --verbose
libguestfs: command: run: \ --if-newer
libguestfs: command: run: \ --lock /home/rjones/d/libguestfs/tmp/.guestfs-1000/lock
libguestfs: command: run: \ --copy-kernel
libguestfs: command: run: \ -f ext2
libguestfs: command: run: \ --host-cpu x86_64
libguestfs: command: run: \ /home/rjones/d/libguestfs/appliance/supermin.d
libguestfs: command: run: \ -o /home/rjones/d/libguestfs/tmp/.guestfs-1000/appliance.d
supermin: version: 5.1.15
supermin: rpm: detected RPM version 4.13
supermin: package handler: fedora/rpm
supermin: acquiring lock on /home/rjones/d/libguestfs/tmp/.guestfs-1000/lock
supermin: if-newer: output does not need rebuilding
libguestfs: finished building supermin appliance
libguestfs: begin testing qemu features
libguestfs: command: run: /home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64
libguestfs: command: run: \ -display none
libguestfs: command: run: \ -help
libguestfs: qemu version 2.5
libguestfs: command: run: /home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64
libguestfs: command: run: \ -display none
libguestfs: command: run: \ -machine accel=kvm:tcg
libguestfs: command: run: \ -device ?
libguestfs: finished testing qemu features
[00112ms] /home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64 \
    -global virtio-blk-pci.scsi=off \
    -nodefconfig \
    -enable-fips \
    -nodefaults \
    -display none \
    -machine accel=kvm:tcg \
    -cpu host \
    -m 500 \
    -no-reboot \
    -rtc driftfix=slew \
    -no-hpet \
    -global kvm-pit.lost_tick_policy=discard \
    -kernel /home/rjones/d/libguestfs/tmp/.guestfs-1000/appliance.d/kernel \
    -initrd /home/rjones/d/libguestfs/tmp/.guestfs-1000/appliance.d/initrd \
    -object rng-random,filename=/dev/urandom,id=rng0 \
    -device virtio-rng-pci,rng=rng0 \
    -device virtio-scsi-pci,id=scsi \
    -drive file=/home/rjones/d/libguestfs/tmp/libguestfsT8B1IH/scratch.1,cache=unsafe,format=raw,id=hd0,if=none \
    -device scsi-hd,drive=hd0 \
    -drive file=/home/rjones/d/libguestfs/tmp/.guestfs-1000/appliance.d/root,snapshot=on,id=appliance,cache=unsafe,if=none \
    -device scsi-hd,drive=appliance \
    -device virtio-serial-pci \
    -serial stdio \
    -device sga \
    -chardev socket,path=/run/user/1000/libguestfs9v9P6D/guestfsd.sock,id=channel0 \
    -device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \
    -append 'panic=1 console=ttyS0 udevtimeout=6000 udev.event-timeout=6000 no_timer_check acpi=off printk.time=1 cgroup_disable=memory root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=xterm-256color'
libguestfs: responding to serial console Device Status Report
\x1b[1;256r\x1b[256;256H\x1b[6n
Google, Inc.
Serial Graphics Adapter 11/03/11
SGABIOS $Id$ (pbonzini@yakj.usersys.redhat.com) Thu Nov  3 13:33:51 UTC 2011
Term: 80x24
4 0
\x1b[2J
SeaBIOS (version rel-1.9.0-120-g6b76e69)

Booting from ROM...

Probing EDD (edd=off to disable)... ok
\x1b[2J[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Initializing cgroup subsys cpuacct
[    0.000000] Linux version 4.4.4-301.fc23.x86_64 (mockbuild@bkernel02.phx2.fedoraproject.org) (gcc version 5.3.1 20151207 (Red Hat 5.3.1-2) (GCC) ) #1 SMP Fri Mar 4 17:42:42 UTC 2016
[    0.000000] Command line: panic=1 console=ttyS0 udevtimeout=6000 udev.event-timeout=6000 no_timer_check acpi=off printk.time=1 cgroup_disable=memory root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=xterm-256color
[    0.000000] x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
[    0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers'
[    0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format.
[    0.000000] x86/fpu: Using 'eager' FPU context switches.
[    0.000000] e820: BIOS-provided physical RAM map:
[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009f7ff] usable
[    0.000000] BIOS-e820: [mem 0x000000000009f800-0x000000000009ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000001f3dffff] usable
[    0.000000] BIOS-e820: [mem 0x000000001f3e0000-0x000000001f3fffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] SMBIOS 2.8 present.
[    0.000000] Hypervisor detected: KVM
[    0.000000] e820: last_pfn = 0x1f3e0 max_arch_pfn = 0x400000000
[    0.000000] x86/PAT: Configuration [0-7]: WB  WC  UC- UC  WB  WC  UC- WT  
[    0.000000] Using GB pages for direct mapping
[    0.000000] RAMDISK: [mem 0x00faa000-0x00ffffff]
[    0.000000] No NUMA configuration found
[    0.000000] Faking a node at [mem 0x0000000000000000-0x000000001f3dffff]
[    0.000000] NODE_DATA(0) allocated [mem 0x1f3ce000-0x1f3dffff]
[    0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00
[    0.000000] kvm-clock: cpu 0, msr 0:1f3be001, primary cpu clock
[    0.000000] kvm-clock: using sched offset of 108638070 cycles
[    0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000000001000-0x0000000000ffffff]
[    0.000000]   DMA32    [mem 0x0000000001000000-0x000000001f3dffff]
[    0.000000]   Normal   empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000001000-0x000000000009efff]
[    0.000000]   node   0: [mem 0x0000000000100000-0x000000001f3dffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000001f3dffff]
[    0.000000] SFI: Simple Firmware Interface v0.81 http://simplefirmware.org
[    0.000000] smpboot: Allowing 1 CPUs, 0 hotplug CPUs
[    0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
[    0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
[    0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff]
[    0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff]
[    0.000000] e820: [mem 0x1f400000-0xfeffbfff] available for PCI devices
[    0.000000] Booting paravirtualized kernel on KVM
[    0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1910969940391419 ns
[    0.000000] setup_percpu: NR_CPUS:1024 nr_cpumask_bits:1 nr_cpu_ids:1 nr_node_ids:1
[    0.000000] PERCPU: Embedded 34 pages/cpu @ffff88001f000000 s98712 r8192 d32360 u2097152
[    0.000000] KVM setup async PF for cpu 0
[    0.000000] kvm-stealtime: cpu 0, msr 1f00d900
[    0.000000] Built 1 zonelists in Node order, mobility grouping on.  Total pages: 125763
[    0.000000] Policy zone: DMA32
[    0.000000] Kernel command line: panic=1 console=ttyS0 udevtimeout=6000 udev.event-timeout=6000 no_timer_check acpi=off printk.time=1 cgroup_disable=memory root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=xterm-256color
[    0.000000] PID hash table entries: 2048 (order: 2, 16384 bytes)
[    0.000000] Memory: 485620K/511480K available (7827K kernel code, 1307K rwdata, 3444K rodata, 1528K init, 1544K bss, 25860K reserved, 0K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] Hierarchical RCU implementation.
[    0.000000] \tBuild-time adjustment of leaf fanout to 64.
[    0.000000] \tRCU restricting CPUs from NR_CPUS=1024 to nr_cpu_ids=1.
[    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=1
[    0.000000] NR_IRQS:65792 nr_irqs:32 16
[    0.000000] \tOffload RCU callbacks from all CPUs
[    0.000000] \tOffload RCU callbacks from CPUs: 0.
[    0.000000] Console: colour *CGA 80x25
[    0.000000] console [ttyS0] enabled
[    0.000000] tsc: Detected 2593.994 MHz processor
[    0.049220] Calibrating delay loop (skipped) preset value.. 5187.98 BogoMIPS (lpj=2593994)
[    0.049791] pid_max: default: 32768 minimum: 301
[    0.050203] Security Framework initialized
[    0.050481] Yama: becoming mindful.
[    0.050719] SELinux:  Disabled at boot.
[    0.051055] Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
[    0.051614] Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
[    0.052151] Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
[    0.052619] Mountpoint-cache hash table entries: 1024 (order: 1, 8192 bytes)
[    0.053243] Initializing cgroup subsys io
[    0.053544] Initializing cgroup subsys memory
[    0.054000] Disabling memory control group subsystem
[    0.054358] Initializing cgroup subsys devices
[    0.054679] Initializing cgroup subsys freezer
[    0.055003] Initializing cgroup subsys net_cls
[    0.055302] Initializing cgroup subsys perf_event
[    0.055647] Initializing cgroup subsys net_prio
[    0.055992] Initializing cgroup subsys hugetlb
[    0.056292] Initializing cgroup subsys pids
[    0.057554] mce: CPU supports 10 MCE banks
[    0.057927] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
[    0.058284] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0
[    0.068713] Freeing SMP alternatives memory: 28K (ffffffff81ec6000 - ffffffff81ecd000)
[    0.071455] ftrace: allocating 29522 entries in 116 pages
[    0.095900] smpboot: weird, boot CPU (#0) not listed by the BIOS
[    0.096599] smpboot: SMP motherboard not detected
[    0.097155] smpboot: SMP disabled
[    0.097518] x2apic enabled
[    0.097848] Switched APIC routing to physical x2apic.
[    0.098544] Performance Events: 16-deep LBR, Broadwell events, Intel PMU driver.
[    0.099316] ... version:                2
[    0.099613] ... bit width:              48
[    0.099922] ... generic registers:      4
[    0.100254] ... value mask:             0000ffffffffffff
[    0.100673] ... max period:             000000007fffffff
[    0.101032] ... fixed-purpose events:   3
[    0.101328] ... event mask:             000000070000000f
[    0.102171] x86: Booted up 1 node, 1 CPUs
[    0.102471] smpboot: Total of 1 processors activated (5187.98 BogoMIPS)
[    0.103054] devtmpfs: initialized
[    0.104596] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns
[    0.105342] atomic64_test: passed for x86-64 platform with CX8 and with SSE
[    0.105832] pinctrl core: initialized pinctrl subsystem
[    0.106278] RTC time:  8:01:11, date: 04/01/16
[    0.106717] NET: Registered protocol family 16
[    0.107164] cpuidle: using governor menu
[    0.107593] PCI: Using configuration type 1 for base access
[    0.109331] ACPI: Interpreter disabled.
[    0.109863] vgaarb: loaded
[    0.110216] SCSI subsystem initialized
[    0.110603] usbcore: registered new interface driver usbfs
[    0.110982] usbcore: registered new interface driver hub
[    0.111370] usbcore: registered new device driver usb
[    0.111798] PCI: Probing PCI hardware
[    0.112072] PCI host bridge to bus 0000:00
[    0.112373] pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
[    0.112801] pci_bus 0000:00: root bus resource [mem 0x00000000-0xffffffffff]
[    0.113284] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
[    0.122996] pci 0000:00:01.1: legacy IDE quirk: reg 0x10: [io  0x01f0-0x01f7]
[    0.123538] pci 0000:00:01.1: legacy IDE quirk: reg 0x14: [io  0x03f6]
[    0.123978] pci 0000:00:01.1: legacy IDE quirk: reg 0x18: [io  0x0170-0x0177]
[    0.124489] pci 0000:00:01.1: legacy IDE quirk: reg 0x1c: [io  0x0376]
[    0.126815] pci 0000:00:01.3: quirk: [io  0x0600-0x063f] claimed by PIIX4 ACPI
[    0.127607] pci 0000:00:01.3: quirk: [io  0x0700-0x070f] claimed by PIIX4 SMB
[    0.202880] NetLabel: Initializing
[    0.203366] NetLabel:  domain hash size = 128
[    0.203740] NetLabel:  protocols = UNLABELED CIPSOv4
[    0.204111] NetLabel:  unlabeled traffic allowed by default
[    0.204582] clocksource: Switched to clocksource kvm-clock
[    0.212472] pnp: PnP ACPI: disabled
[    0.214136] NET: Registered protocol family 2
[    0.214635] TCP established hash table entries: 4096 (order: 3, 32768 bytes)
[    0.215212] TCP bind hash table entries: 4096 (order: 4, 65536 bytes)
[    0.215948] TCP: Hash tables configured (established 4096 bind 4096)
[    0.217213] UDP hash table entries: 256 (order: 1, 8192 bytes)
[    0.217722] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[    0.218251] NET: Registered protocol family 1
[    0.218571] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
[    0.219058] pci 0000:00:01.0: PIIX3: Enabling Passive Release
[    0.219467] pci 0000:00:01.0: Activating ISA DMA hang workarounds
[    0.220021] Unpacking initramfs...
[    0.220467] Freeing initrd memory: 344K (ffff880000faa000 - ffff880001000000)
[    0.221041] platform rtc_cmos: registered platform RTC device (no PNP device found)
[    0.221927] futex hash table entries: 256 (order: 2, 16384 bytes)
[    0.222489] audit: initializing netlink subsys (disabled)
[    0.222929] audit: type=2000 audit(1459497671.940:1): initialized
[    0.223552] Initialise system trusted keyring
[    0.223952] HugeTLB registered 1 GB page size, pre-allocated 0 pages
[    0.224392] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[    0.225770] zbud: loaded
[    0.226182] VFS: Disk quotas dquot_6.6.0
[    0.226489] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    0.227282] Key type big_key registered
[    0.229286] NET: Registered protocol family 38
[    0.229653] Key type asymmetric registered
[    0.229961] Asymmetric key parser 'x509' registered
[    0.230394] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
[    0.231291] io scheduler noop registered
[    0.231781] io scheduler deadline registered
[    0.232344] io scheduler cfq registered (default)
[    0.232900] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[    0.233330] pciehp: PCI Express Hot Plug Controller Driver version: 0.4
[    0.233975] Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled
[    0.256483] serial8250: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[    0.257814] Non-volatile memory driver v1.3
[    0.258154] Linux agpgart interface v0.103
[    0.259133] scsi host0: ata_piix
[    0.259422] scsi host1: ata_piix
[    0.259690] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc080 irq 14
[    0.260165] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc088 irq 15
[    0.260859] libphy: Fixed MDIO Bus: probed
[    0.261194] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.261661] ehci-pci: EHCI PCI platform driver
[    0.261984] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    0.262418] ohci-pci: OHCI PCI platform driver
[    0.262748] uhci_hcd: USB Universal Host Controller Interface driver
[    0.263246] usbcore: registered new interface driver usbserial
[    0.263670] usbcore: registered new interface driver usbserial_generic
[    0.264139] usbserial: USB Serial support registered for generic
[    0.264678] i8042: PNP: No PS/2 controller found. Probing ports directly.
[    0.265846] serio: i8042 KBD port at 0x60,0x64 irq 1
[    0.266203] serio: i8042 AUX port at 0x60,0x64 irq 12
[    0.266824] mousedev: PS/2 mouse device common for all mice
[    0.267411] input: AT Raw Set 2 keyboard as /devices/platform/i8042/serio0/input/input0
[    0.268454] input: VirtualPS/2 VMware VMMouse as /devices/platform/i8042/serio1/input/input3
[    0.269237] input: VirtualPS/2 VMware VMMouse as /devices/platform/i8042/serio1/input/input2
[    0.270058] rtc_cmos rtc_cmos: rtc core: registered rtc_cmos as rtc0
[    0.270540] rtc_cmos rtc_cmos: alarms up to one day, 114 bytes nvram
[    0.271109] device-mapper: uevent: version 1.0.3
[    0.271522] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com
[    0.272261] hidraw: raw HID events driver (C) Jiri Kosina
[    0.272656] usbcore: registered new interface driver usbhid
[    0.273100] usbhid: USB HID core driver
[    0.273605] drop_monitor: Initializing network drop monitor service
[    0.274148] ip_tables: (C) 2000-2006 Netfilter Core Team
[    0.274592] Initializing XFRM netlink socket
[    0.275006] NET: Registered protocol family 10
[    0.275510] mip6: Mobile IPv6
[    0.275741] NET: Registered protocol family 17
[    0.276188] microcode: CPU0 sig=0x306d4, pf=0x1, revision=0x1
[    0.276685] microcode: Microcode Update Driver: v2.01 <tigran@aivazian.fsnet.co.uk>, Peter Oruba
[    0.277318] AVX2 version of gcm_enc/dec engaged.
[    0.277704] AES CTR mode by8 optimization enabled
[    0.295438] registered taskstats version 1
[    0.295912] Loading compiled-in X.509 certificates
[    0.296907] Loaded X.509 cert 'Fedora kernel signing key: ff671496ff3f386a8ef2031bac2201b2edb4da2a'
[    0.297610] zswap: loaded using pool lzo/zbud
[    0.298249]   Magic number: 12:867:16
[    0.298630] rtc_cmos rtc_cmos: setting system clock to 2016-04-01 08:01:11 UTC (1459497671)
[    0.418595] Freeing unused kernel memory: 1528K (ffffffff81d48000 - ffffffff81ec6000)
[    0.419161] Write protecting the kernel read-only data: 12288k
[    0.419696] Freeing unused kernel memory: 352K (ffff8800017a8000 - ffff880001800000)
[    0.421419] Freeing unused kernel memory: 652K (ffff880001b5d000 - ffff880001c00000)
supermin: mounting /proc
supermin: ext2 mini initrd starting up: 5.1.15 dietlibc
supermin: cmdline: panic=1 console=ttyS0 udevtimeout=6000 udev.event-timeout=6000 no_timer_check acpi=off printk.time=1 cgroup_disable=memory root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=xterm-256color
supermin: uptime: 0.30 0.14
supermin: mounting /sys
supermin: internal insmod crc32-pclmul.ko
supermin: internal insmod crc32c-intel.ko
supermin: internal insmod crct10dif-pclmul.ko
supermin: internal insmod crc32.ko
supermin: internal insmod virtio.ko
supermin: internal insmod virtio_ring.ko
supermin: internal insmod virtio_blk.ko
supermin: internal insmod virtio-rng.ko
supermin: internal insmod virtio_console.ko
supermin: internal insmod virtio_net.ko
supermin: internal insmod virtio_scsi.ko
supermin: internal insmod virtio_balloon.ko
supermin: internal insmod virtio_input.ko
supermin: internal insmod virtio_mmio.ko
supermin: internal insmod virtio_pci.ko
[    0.441266] virtio-pci 0000:00:02.0: virtio_pci: leaving for legacy driver
[    0.442677] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver
[    0.444594] scsi host2: Virtio SCSI HBA
[    0.445069] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver
[    1.222696] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x256412811b4, max_idle_ns: 440795306987 ns
[   21.854699] scsi 2:0:0:0: tag#0 abort