Re: __blkg_lookup oops with 4.2-rcX
From: Richard W.M. Jones
Date: Fri Sep 04 2015 - 14:17:14 EST
On Fri, Sep 04, 2015 at 01:13:02PM -0400, Tejun Heo wrote:
> > [ 6.784689] BUG: unable to handle kernel NULL pointer dereference at 0000000000000bb8
> > [ 6.787605] IP: [<ffffffff814107a0>] blk_throtl_drain+0x80/0x220
>
> The only struct which is large enough for 0xbb8 offset is
> request_queue. Hmm.... can you please try the brute force debug patch
> below and report the kernel log after the crash?
I'll test your patch very soon, after I've recompiled the kernel with it.
I just wanted to say that I was working on a better reproducer using a
newer kernel, and now I have got one. It is this:
guestfish -v -x <<EOF
disk-create test1.img raw 500M
add-drive test1.img format:raw cachemode:unsafe
run
part-disk /dev/sda mbr
pvcreate /dev/sda1
vgcreate VG /dev/sda1
lvcreate LV1 VG 50
lvcreate LV2 VG 50
lvremove /dev/VG/LV1
EOF
The output of this command (when it fails, which is not 100% reliably,
but is probably > 50%) is attached.
To explain what the command above does:
(1) It creates a 500 MB sparse file called 'test1.img'.
(2) It creates a small, short-lived VM, using qemu, adding 'test1.img'
to the qemu command line. Setting 'cachemode:unsafe' seems to be
either important, or makes the bug reproduce much more often. This
corresponds to the qemu option '-drive file=test1.img,cache=unsafe'
and should be below the level that the kernel sees, so should make no
difference.
(3) It boots the VM.
(4) It runs some parted and LVM commands -- see the attached log file
for precisely what commands are run.
(5) The final command (lvremove) fails, with the stacktrace seen in
the attachment.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
virt-df lists disk usage of guests without needing to install any
software inside the virtual machine. Supports Linux and Windows.
http://people.redhat.com/~rjones/virt-df/
libguestfs: trace: disk_create "test1.img" "raw" 524288000
libguestfs: trace: disk_create = 0
libguestfs: trace: add_drive "test1.img" "format:raw" "cachemode:unsafe"
libguestfs: trace: add_drive = 0
libguestfs: trace: launch
libguestfs: trace: get_tmpdir
libguestfs: trace: get_tmpdir = "/tmp"
libguestfs: trace: version
libguestfs: trace: version = <struct guestfs_version *>
libguestfs: trace: get_backend
libguestfs: trace: get_backend = "libvirt"
libguestfs: launch: program=guestfish
libguestfs: launch: version=1.31.3fedora=24,release=1.fc24,libvirt
libguestfs: launch: backend registered: unix
libguestfs: launch: backend registered: uml
libguestfs: launch: backend registered: libvirt
libguestfs: launch: backend registered: direct
libguestfs: launch: backend=libvirt
libguestfs: launch: tmpdir=/tmp/libguestfsEfp5po
libguestfs: launch: umask=0002
libguestfs: launch: euid=1000
libguestfs: libvirt version = 1002019 (1.2.19)
libguestfs: guest random name = guestfs-zlr3zvogh5lilmw3
libguestfs: [00000ms] connect to libvirt
libguestfs: opening libvirt handle: URI = qemu:///session, auth = default+wrapper, flags = 0
libguestfs: successfully opened libvirt handle: conn = 0x557415049ec0
libguestfs: qemu version (reported by libvirt) = 2004000 (2.4.0)
libguestfs: [00003ms] get libvirt capabilities
libguestfs: [00670ms] parsing capabilities XML
libguestfs: trace: get_backend_setting "force_tcg"
libguestfs: trace: get_backend_setting = NULL (error)
libguestfs: trace: get_backend_setting "internal_libvirt_label"
libguestfs: trace: get_backend_setting = NULL (error)
libguestfs: trace: get_backend_setting "internal_libvirt_imagelabel"
libguestfs: trace: get_backend_setting = NULL (error)
libguestfs: trace: get_backend_setting "internal_libvirt_norelabel_disks"
libguestfs: trace: get_backend_setting = NULL (error)
libguestfs: [00672ms] build appliance
libguestfs: trace: get_cachedir
libguestfs: trace: get_cachedir = "/var/tmp"
libguestfs: [00672ms] begin building supermin appliance
libguestfs: [00672ms] 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 /var/tmp/.guestfs-1000/lock
libguestfs: command: run: \ --copy-kernel
libguestfs: command: run: \ -f ext2
libguestfs: command: run: \ --host-cpu x86_64
libguestfs: command: run: \ /usr/lib64/guestfs/supermin.d
libguestfs: command: run: \ -o /var/tmp/.guestfs-1000/appliance.d
supermin: version: 5.1.13
supermin: rpm: detected RPM version 4.13
supermin: package handler: fedora/rpm
supermin: acquiring lock on /var/tmp/.guestfs-1000/lock
supermin: if-newer: output does not need rebuilding
libguestfs: [00692ms] finished building supermin appliance
libguestfs: trace: disk_create "/tmp/libguestfsEfp5po/overlay1" "qcow2" -1 "backingfile:/var/tmp/.guestfs-1000/appliance.d/root" "backingformat:raw"
libguestfs: command: run: qemu-img
libguestfs: command: run: \ create
libguestfs: command: run: \ -f qcow2
libguestfs: command: run: \ -o backing_file=/var/tmp/.guestfs-1000/appliance.d/root,backing_fmt=raw
libguestfs: command: run: \ /tmp/libguestfsEfp5po/overlay1
Formatting '/tmp/libguestfsEfp5po/overlay1', fmt=qcow2 size=4294967296 backing_file='/var/tmp/.guestfs-1000/appliance.d/root' backing_fmt='raw' encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
libguestfs: trace: disk_create = 0
libguestfs: [00812ms] create libvirt XML
libguestfs: command: run: dmesg | grep -Eoh 'lpj=[[:digit:]]+'
libguestfs: read_lpj_from_dmesg: calculated lpj=3515548
libguestfs: trace: get_cachedir
libguestfs: trace: get_cachedir = "/var/tmp"
libguestfs: libvirt XML:\n<?xml version="1.0"?>\n<domain type="qemu" xmlns:qemu="http://libvirt.org/schemas/domain/qemu/1.0";>\n <name>guestfs-zlr3zvogh5lilmw3</name>\n <memory unit="MiB">500</memory>\n <currentMemory unit="MiB">500</currentMemory>\n <vcpu>1</vcpu>\n <clock offset="utc">\n <timer name="rtc" tickpolicy="catchup"/>\n <timer name="pit" tickpolicy="delay"/>\n <timer name="hpet" present="no"/>\n </clock>\n <os>\n <type>hvm</type>\n <kernel>/var/tmp/.guestfs-1000/appliance.d/kernel</kernel>\n <initrd>/var/tmp/.guestfs-1000/appliance.d/initrd</initrd>\n <cmdline>panic=1 console=ttyS0 udevtimeout=6000 udev.event-timeout=6000 no_timer_check lpj=3515548 acpi=off printk.time=1 cgroup_disable=memory root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=xterm-256color</cmdline>\n <bios useserial="yes"/>\n </os>\n <on_reboot>destroy</on_reboot>\n <devices>\n <controller type="scsi" index="0" model="virtio-scsi"/>\n <disk device="disk" type="file">\n <source file="/tmp/test1.img"/>\n <target dev="sda" bus="scsi"/>\n <driver name="qemu" type="raw" cache="unsafe"/>\n <address type="drive" controller="0" bus="0" target="0" unit="0"/>\n </disk>\n <disk type="file" device="disk">\n <source file="/tmp/libguestfsEfp5po/overlay1"/>\n <target dev="sdb" bus="scsi"/>\n <driver name="qemu" type="qcow2" cache="unsafe"/>\n <address type="drive" controller="0" bus="0" target="1" unit="0"/>\n <shareable/>\n </disk>\n <serial type="unix">\n <source mode="connect" path="/tmp/libguestfsEfp5po/console.sock"/>\n <target port="0"/>\n </serial>\n <channel type="unix">\n <source mode="connect" path="/tmp/libguestfsEfp5po/guestfsd.sock"/>\n <target type="virtio" name="org.libguestfs.channel.0"/>\n </channel>\n </devices>\n <qemu:commandline>\n <qemu:env name="TMPDIR" value="/var/tmp"/>\n </qemu:commandline>\n</domain>\n
libguestfs: trace: get_cachedir
libguestfs: trace: get_cachedir = "/var/tmp"
libguestfs: command: run: ls
libguestfs: command: run: \ -a
libguestfs: command: run: \ -l
libguestfs: command: run: \ -R
libguestfs: command: run: \ -Z /var/tmp/.guestfs-1000
libguestfs: /var/tmp/.guestfs-1000:
libguestfs: total 0
libguestfs: drwxr-xr-x. 3 rjones rjones unconfined_u:object_r:user_tmp_t:s0 35 Sep 4 13:35 .
libguestfs: drwxrwxrwt. 4 root root system_u:object_r:tmp_t:s0 101 Sep 4 12:41 ..
libguestfs: drwxr-xr-x. 2 rjones rjones unconfined_u:object_r:user_tmp_t:s0 43 Sep 4 12:41 appliance.d
libguestfs: -rw-r--r--. 1 rjones rjones unconfined_u:object_r:user_tmp_t:s0 0 Sep 4 12:41 lock
libguestfs:
libguestfs: /var/tmp/.guestfs-1000/appliance.d:
libguestfs: total 341960
libguestfs: drwxr-xr-x. 2 rjones rjones unconfined_u:object_r:user_tmp_t:s0 43 Sep 4 12:41 .
libguestfs: drwxr-xr-x. 3 rjones rjones unconfined_u:object_r:user_tmp_t:s0 35 Sep 4 13:35 ..
libguestfs: -rw-r--r--. 1 rjones rjones system_u:object_r:virt_content_t:s0 1478144 Sep 4 13:35 initrd
libguestfs: -rwxr-xr-x. 1 rjones rjones system_u:object_r:virt_content_t:s0 6576376 Sep 4 13:35 kernel
libguestfs: -rw-r--r--. 1 rjones rjones system_u:object_r:virt_content_t:s0 4294967296 Sep 4 13:35 root
libguestfs: command: run: ls
libguestfs: command: run: \ -a
libguestfs: command: run: \ -l
libguestfs: command: run: \ -Z /tmp/libguestfsEfp5po
libguestfs: total 200
libguestfs: drwxr-xr-x. 2 rjones rjones unconfined_u:object_r:user_tmp_t:s0 78 Sep 4 13:35 .
libguestfs: drwxrwxrwt. 13 root root system_u:object_r:tmp_t:s0 4096 Sep 4 13:35 ..
libguestfs: srwxrwxr-x. 1 rjones rjones unconfined_u:object_r:user_tmp_t:s0 0 Sep 4 13:35 console.sock
libguestfs: srwxrwxr-x. 1 rjones rjones unconfined_u:object_r:user_tmp_t:s0 0 Sep 4 13:35 guestfsd.sock
libguestfs: -rw-r--r--. 1 rjones rjones unconfined_u:object_r:user_tmp_t:s0 197120 Sep 4 13:35 overlay1
libguestfs: -rwxrwxr-x. 1 rjones rjones unconfined_u:object_r:user_tmp_t:s0 0 Sep 4 13:35 umask-check
libguestfs: [00832ms] launch libvirt guest
\x1b[1;256r\x1b[256;256H\x1b[6n
Google, Inc.
Serial Graphics Adapter 06/19/15
SGABIOS $Id: sgabios.S 8 2010-04-22 00:03:40Z nlaredo $ (mockbuild@) Fri Jun 19 00:52:18 UTC 2015
Term: 80x24
4 0
\x1b[2J
SeaBIOS (version 1.8.2-20150714_191134-)
Machine UUID 4803075c-aaef-b14e-8acb-b4d47bf7dc84
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 4.2.0-1.fc24.x86_64+debug (mockbuild@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc version 5.1.1 20150618 (Red Hat 5.1.1-4) (GCC) ) #1 SMP Mon Aug 31 15:39:13 UTC 2015
[ 0.000000] Command line: panic=1 console=ttyS0 udevtimeout=6000 udev.event-timeout=6000 no_timer_check lpj=3515548 acpi=off printk.time=1 cgroup_disable=memory root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=xterm-256color
[ 0.000000] x86/fpu: Legacy x87 FPU detected.
[ 0.000000] x86/fpu: Using 'lazy' 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 0x0000000000100000-0x000000001f3fffff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] SMBIOS 2.8 present.
[ 0.000000] e820: last_pfn = 0x1f400 max_arch_pfn = 0x400000000
[ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT
[ 0.000000] found SMP MP-table at [mem 0x000f64d0-0x000f64df] mapped at [ffff8800000f64d0]
[ 0.000000] Scanning 1 areas for low memory corruption
[ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff]
[ 0.000000] init_memory_mapping: [mem 0x1f000000-0x1f1fffff]
[ 0.000000] init_memory_mapping: [mem 0x00100000-0x1effffff]
[ 0.000000] init_memory_mapping: [mem 0x1f200000-0x1f3fffff]
[ 0.000000] RAMDISK: [mem 0x1f297000-0x1f3fffff]
[ 0.000000] No NUMA configuration found
[ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000001f3fffff]
[ 0.000000] NODE_DATA(0) allocated [mem 0x1f282000-0x1f296fff]
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff]
[ 0.000000] DMA32 [mem 0x0000000001000000-0x000000001f3fffff]
[ 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 0x0000000000100000-0x000000001f3fffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000001f3fffff]
[ 0.000000] SFI: Simple Firmware Interface v0.81 http://simplefirmware.org
[ 0.000000] Intel MultiProcessor Specification v1.4
[ 0.000000] MPTABLE: OEM ID: BOCHSCPU
[ 0.000000] MPTABLE: Product ID: 0.1
[ 0.000000] MPTABLE: APIC at: 0xFEE00000
[ 0.000000] Processor #0 (Bootup-CPU)
[ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
[ 0.000000] Processors: 1
[ 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 0x1f400000-0xfffbffff] available for PCI devices
[ 0.000000] Booting paravirtualized kernel on bare hardware
[ 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 482 pages/cpu @ffff88001ec00000 s1936536 r8192 d29544 u2097152
[ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 125881
[ 0.000000] Policy zone: DMA32
[ 0.000000] Kernel command line: panic=1 console=ttyS0 udevtimeout=6000 udev.event-timeout=6000 no_timer_check lpj=3515548 acpi=off printk.time=1 cgroup_disable=memory root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=xterm-256color
[ 0.000000] Disabling memory control group subsystem
[ 0.000000] PID hash table entries: 2048 (order: 2, 16384 bytes)
[ 0.000000] Memory: 463172K/511608K available (8667K kernel code, 1440K rwdata, 3548K rodata, 3536K init, 16576K bss, 48436K reserved, 0K cma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] Running RCU self tests
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] \tRCU lockdep checking is enabled.
[ 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] kmemleak: Kernel memory leak detector disabled
[ 0.000000] NR_IRQS:65792 nr_irqs:256 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] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[ 0.000000] ... MAX_LOCKDEP_SUBCLASSES: 8
[ 0.000000] ... MAX_LOCK_DEPTH: 48
[ 0.000000] ... MAX_LOCKDEP_KEYS: 8191
[ 0.000000] ... CLASSHASH_SIZE: 4096
[ 0.000000] ... MAX_LOCKDEP_ENTRIES: 32768
[ 0.000000] ... MAX_LOCKDEP_CHAINS: 65536
[ 0.000000] ... CHAINHASH_SIZE: 32768
[ 0.000000] memory used by lock dependency info: 8671 kB
[ 0.000000] per task-struct memory footprint: 2688 bytes
[ 0.000000] tsc: Unable to calibrate against PIT
[ 0.000000] tsc: No reference (HPET/PMTIMER) available
[ 0.000000] tsc: Marking TSC unstable due to could not calculate TSC khz
[ 0.010000] Calibrating delay loop (skipped) preset value.. 7031.09 BogoMIPS (lpj=3515548)
[ 0.010000] pid_max: default: 32768 minimum: 301
[ 0.015000] Security Framework initialized
[ 0.015000] SELinux: Disabled at boot.
[ 0.015000] Yama: becoming mindful.
[ 0.026000] Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
[ 0.030000] Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
[ 0.032000] Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
[ 0.032000] Mountpoint-cache hash table entries: 1024 (order: 1, 8192 bytes)
[ 0.072000] Initializing cgroup subsys blkio
[ 0.074000] Initializing cgroup subsys memory
[ 0.075000] Initializing cgroup subsys devices
[ 0.076000] Initializing cgroup subsys freezer
[ 0.077000] Initializing cgroup subsys net_cls
[ 0.077000] Initializing cgroup subsys perf_event
[ 0.078000] Initializing cgroup subsys net_prio
[ 0.078000] Initializing cgroup subsys hugetlb
[ 0.082000] mce: CPU supports 10 MCE banks
[ 0.084000] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
[ 0.084000] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0
[ 0.550000] Freeing SMP alternatives memory: 28K (ffffffff822de000 - ffffffff822e5000)
[ 0.571000] ftrace: allocating 28939 entries in 114 pages
[ 0.695000] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 0.798000] smpboot: CPU0: AMD QEMU Virtual CPU version 2.4.0 (fam: 06, model: 06, stepping: 03)
[ 0.800000] Performance Events: Broken PMU hardware detected, using software events only.
[ 0.801000] Failed to access perfctr msr (MSR c0010007 is 0)
[ 0.844000] x86: Booted up 1 node, 1 CPUs
[ 0.844000] smpboot: Total of 1 processors activated (7031.09 BogoMIPS)
[ 0.847000] NMI watchdog: disabled (cpu0): hardware events not enabled
[ 0.847000] NMI watchdog: Shutting down hard lockup detector on all cpus
[ 0.894000] devtmpfs: initialized
[ 0.955000] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns
[ 0.962000] atomic64_test: passed for x86-64 platform with CX8 and with SSE
[ 0.962000] pinctrl core: initialized pinctrl subsystem
[ 0.969000] RTC time: 17:35:54, date: 09/04/15
[ 0.985000] NET: Registered protocol family 16
[ 1.009000] cpuidle: using governor menu
[ 1.021000] PCI: Using configuration type 1 for base access
[ 1.233000] ACPI: Interpreter disabled.
[ 1.249000] vgaarb: loaded
[ 1.258000] SCSI subsystem initialized
[ 1.266000] usbcore: registered new interface driver usbfs
[ 1.267000] usbcore: registered new interface driver hub
[ 1.269000] usbcore: registered new device driver usb
[ 1.277000] PCI: Probing PCI hardware
[ 1.282000] PCI host bridge to bus 0000:00
[ 1.283000] pci_bus 0000:00: root bus resource [io 0x0000-0xffff]
[ 1.284000] pci_bus 0000:00: root bus resource [mem 0x00000000-0xffffffffff]
[ 1.284000] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
[ 1.308000] pci 0000:00:01.1: legacy IDE quirk: reg 0x10: [io 0x01f0-0x01f7]
[ 1.308000] pci 0000:00:01.1: legacy IDE quirk: reg 0x14: [io 0x03f6]
[ 1.308000] pci 0000:00:01.1: legacy IDE quirk: reg 0x18: [io 0x0170-0x0177]
[ 1.309000] pci 0000:00:01.1: legacy IDE quirk: reg 0x1c: [io 0x0376]
[ 1.381000] pci 0000:00:01.0: PIIX/ICH IRQ router [8086:7000]
[ 1.410000] NetLabel: Initializing
[ 1.410000] NetLabel: domain hash size = 128
[ 1.411000] NetLabel: protocols = UNLABELED CIPSOv4
[ 1.413000] NetLabel: unlabeled traffic allowed by default
[ 1.418000] clocksource: Switched to clocksource refined-jiffies
[ 2.391851] pnp: PnP ACPI: disabled
[ 2.582822] NET: Registered protocol family 2
[ 2.608818] TCP established hash table entries: 4096 (order: 3, 32768 bytes)
[ 2.610818] TCP bind hash table entries: 4096 (order: 6, 327680 bytes)
[ 2.614818] TCP: Hash tables configured (established 4096 bind 4096)
[ 2.616817] UDP hash table entries: 256 (order: 3, 49152 bytes)
[ 2.617817] UDP-Lite hash table entries: 256 (order: 3, 49152 bytes)
[ 2.622816] NET: Registered protocol family 1
[ 2.623816] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
[ 2.624816] pci 0000:00:01.0: PIIX3: Enabling Passive Release
[ 2.624816] pci 0000:00:01.0: Activating ISA DMA hang workarounds
[ 2.626816] pci 0000:00:01.2: PCI->APIC IRQ transform: INT D -> IRQ 11
[ 2.643813] Unpacking initramfs...
[ 2.787791] Freeing initrd memory: 1444K (ffff88001f297000 - ffff88001f400000)
[ 3.149736] DMA-API: preallocated 65536 debug entries
[ 3.150736] DMA-API: debugging enabled by kernel config
[ 3.154735] platform rtc_cmos: registered platform RTC device (no PNP device found)
[ 3.155735] microcode: AMD CPU family 0x6 not supported
[ 3.178732] Scanning for low memory corruption every 60 seconds
[ 3.204728] cryptomgr_test (28) used greatest stack depth: 14040 bytes left
[ 3.227724] futex hash table entries: 256 (order: 3, 32768 bytes)
[ 3.229724] Initialise system trusted keyring
[ 3.233723] audit: initializing netlink subsys (disabled)
[ 3.235723] audit: type=2000 audit(1441388156.235:1): initialized
[ 3.257720] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[ 3.547676] zpool: loaded
[ 3.547676] zbud: loaded
[ 3.564673] VFS: Disk quotas dquot_6.6.0
[ 3.569672] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 3.629663] Key type big_key registered
[ 3.651660] cryptomgr_test (35) used greatest stack depth: 13480 bytes left
[ 3.780640] cryptomgr_test (53) used greatest stack depth: 12984 bytes left
[ 3.819634] NET: Registered protocol family 38
[ 3.822634] Key type asymmetric registered
[ 3.823634] Asymmetric key parser 'x509' registered
[ 3.824634] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
[ 3.834632] io scheduler noop registered
[ 3.834632] io scheduler deadline registered
[ 3.839631] io scheduler cfq registered (default)
[ 3.867627] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[ 3.868627] pciehp: PCI Express Hot Plug Controller Driver version: 0.4
[ 3.883625] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 3.890624] serial8250: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[ 3.946615] Non-volatile memory driver v1.3
[ 3.949615] Linux agpgart interface v0.103
[ 4.025603] scsi host0: ata_piix
[ 4.037601] scsi host1: ata_piix
[ 4.042601] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc0a0 irq 14
[ 4.042601] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc0a8 irq 15
[ 4.065597] libphy: Fixed MDIO Bus: probed
[ 4.072596] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 4.072596] ehci-pci: EHCI PCI platform driver
[ 4.074596] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 4.074596] ohci-pci: OHCI PCI platform driver
[ 4.075595] uhci_hcd: USB Universal Host Controller Interface driver
[ 4.077595] uhci_hcd 0000:00:01.2: PCI->APIC IRQ transform: INT D -> IRQ 11
[ 4.081595] uhci_hcd 0000:00:01.2: UHCI Host Controller
[ 4.095592] uhci_hcd 0000:00:01.2: new USB bus registered, assigned bus number 1
[ 4.097592] uhci_hcd 0000:00:01.2: detected 2 ports
[ 4.099592] uhci_hcd 0000:00:01.2: irq 11, io base 0x0000c040
[ 4.114590] usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
[ 4.115589] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 4.115589] usb usb1: Product: UHCI Host Controller
[ 4.115589] usb usb1: Manufacturer: Linux 4.2.0-1.fc24.x86_64+debug uhci_hcd
[ 4.116589] usb usb1: SerialNumber: 0000:00:01.2
[ 4.144585] hub 1-0:1.0: USB hub found
[ 4.146585] hub 1-0:1.0: 2 ports detected
[ 4.176580] usbcore: registered new interface driver usbserial
[ 4.177580] usbcore: registered new interface driver usbserial_generic
[ 4.179580] usbserial: USB Serial support registered for generic
[ 4.182579] i8042: PNP: No PS/2 controller found. Probing ports directly.
[ 4.194577] serio: i8042 KBD port at 0x60,0x64 irq 1
[ 4.195577] serio: i8042 AUX port at 0x60,0x64 irq 12
[ 4.218574] mousedev: PS/2 mouse device common for all mice
[ 4.243570] rtc_cmos rtc_cmos: rtc core: registered rtc_cmos as rtc0
[ 4.245570] rtc_cmos rtc_cmos: alarms up to one day, 114 bytes nvram
[ 4.254568] device-mapper: uevent: version 1.0.3
[ 4.275565] device-mapper: ioctl: 4.32.0-ioctl (2015-6-26) initialised: dm-devel@xxxxxxxxxx
[ 4.304561] hidraw: raw HID events driver (C) Jiri Kosina
[ 4.309560] usbcore: registered new interface driver usbhid
[ 4.309560] usbhid: USB HID core driver
[ 4.311560] drop_monitor: Initializing network drop monitor service
[ 4.316559] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 4.323558] Initializing XFRM netlink socket
[ 4.341555] NET: Registered protocol family 10
[ 4.371550] mip6: Mobile IPv6
[ 4.372550] NET: Registered protocol family 17
[ 4.395547] Loading compiled-in X.509 certificates
[ 4.411544] Loaded X.509 cert 'Fedora kernel signing key: b81f089d1552da190bef4260abd6c8a0b37a4a9a'
[ 4.414544] registered taskstats version 1
[ 4.417544] zswap: loading zswap
[ 4.418543] zswap: using zbud pool
[ 4.418543] zswap: using lzo compressor
[ 4.452538] Magic number: 15:151:592
[ 4.453538] rtc_cmos rtc_cmos: setting system clock to 2015-09-04 17:35:58 UTC (1441388158)
[ 4.558522] Freeing unused kernel memory: 3536K (ffffffff81f6a000 - ffffffff822de000)
[ 4.558522] Write protecting the kernel read-only data: 14336k
[ 4.583518] Freeing unused kernel memory: 1560K (ffff88000187a000 - ffff880001a00000)
[ 4.591517] Freeing unused kernel memory: 548K (ffff880001d77000 - ffff880001e00000)
supermin: mounting /proc
supermin: uptime: 4.68 0.67
supermin: ext2 mini initrd starting up: 5.1.13 zlib xz
supermin: cmdline: panic=1 console=ttyS0 udevtimeout=6000 udev.event-timeout=6000 no_timer_check lpj=3515548 acpi=off printk.time=1 cgroup_disable=memory root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=xterm-256color
supermin: mounting /sys
supermin: internal insmod crc32-pclmul.ko.xz
supermin: running xz
done with xz 8487 read
[ 4.813483] PCLMULQDQ-NI instructions are not detected.
insmod: init_module: crc32-pclmul.ko.xz: No such device
supermin: internal insmod crc32c-intel.ko.xz
supermin: running xz
done with xz 19951 read
insmod: init_module: crc32c-intel.ko.xz: No such device
supermin: internal insmod crct10dif-pclmul.ko.xz
supermin: running xz
done with xz 11031 read
insmod: init_module: crct10dif-pclmul.ko.xz: No such device
supermin: internal insmod crc32.ko.xz
supermin: running xz
done with xz 6303 read
supermin: internal insmod virtio.ko.xz
supermin: running xz
done with xz 15215 read
supermin: internal insmod virtio_ring.ko.xz
supermin: running xz
done with xz 19823 read
supermin: internal insmod virtio_blk.ko.xz
supermin: running xz
done with xz 23919 read
supermin: internal insmod virtio-rng.ko.xz
supermin: running xz
done with xz 8959 read
supermin: internal insmod virtio_console.ko.xz
supermin: running xz
done with xz 45839 read
supermin: internal insmod drm.ko.xz
supermin: running xz
[ 5.142433] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input1
[ 5.193426] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input2
done with xz 547063 read
[ 5.426390] [drm] Initialized drm 1.1.0 20060810
supermin: internal insmod drm_kms_helper.ko.xz
supermin: running xz
done with xz 172615 read
supermin: internal insmod ttm.ko.xz
supermin: running xz
done with xz 144711 read
supermin: internal insmod virtio-gpu.ko.xz
supermin: running xz
done with xz 66847 read
supermin: internal insmod ideapad_slidebar.ko.xz
supermin: running xz
done with xz 13359 read
[ 5.681351] ideapad_slidebar: DMI does not match
insmod: init_module: ideapad_slidebar.ko.xz: No such device
supermin: internal insmod virtio_net.ko.xz
supermin: running xz
done with xz 49367 read
supermin: internal insmod video.ko.xz
supermin: running xz
done with xz 50159 read
supermin: internal insmod sparse-keymap.ko.xz
supermin: running xz
done with xz 8951 read
supermin: internal insmod rfkill.ko.xz
supermin: running xz
done with xz 43967 read
supermin: internal insmod ideapad-laptop.ko.xz
supermin: running xz
done with xz 26527 read
supermin: internal insmod megaraid.ko.xz
supermin: running xz
done with xz 64279 read
supermin: internal insmod megaraid_mm.ko.xz
supermin: running xz
done with xz 22327 read
[ 5.930314] megaraid cmm: 2.20.2.7 (Release Date: Sun Jul 16 00:01:03 EST 2006)
supermin: internal insmod megaraid_mbox.ko.xz
supermin: running xz
done with xz 55687 read
[ 5.975307] megaraid: 2.20.5.1 (Release Date: Thu Nov 16 15:32:35 EST 2006)
supermin: internal insmod megaraid_sas.ko.xz
supermin: running xz
done with xz 160327 read
[ 6.065293] megasas: 06.807.10.00-rc1
supermin: internal insmod scsi_transport_spi.ko.xz
supermin: running xz
done with xz 46695 read
supermin: internal insmod sym53c8xx.ko.xz
supermin: running xz
done with xz 119215 read
supermin: internal insmod virtio_scsi.ko.xz
supermin: running xz
done with xz 27871 read
supermin: internal insmod virtio_balloon.ko.xz
supermin: running xz
done with xz 18519 read
supermin: internal insmod virtio_input.ko.xz
supermin: running xz
done with xz 13143 read
supermin: internal insmod virtio_mmio.ko.xz
supermin: running xz
done with xz 13751 read
supermin: internal insmod virtio_pci.ko.xz
supermin: running xz
done with xz 32183 read
[ 6.315255] virtio-pci 0000:00:02.0: PCI->APIC IRQ transform: INT A -> IRQ 10
[ 6.316255] virtio-pci 0000:00:02.0: virtio_pci: leaving for legacy driver
[ 6.339251] scsi host2: Virtio SCSI HBA
[ 6.360248] virtio-pci 0000:00:03.0: PCI->APIC IRQ transform: INT A -> IRQ 11
[ 6.361248] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver
[ 6.398242] scsi 2:0:0:0: Direct-Access QEMU QEMU HARDDISK 2.4. PQ: 0 ANSI: 5
[ 6.416240] virtio-pci 0000:00:04.0: PCI->APIC IRQ transform: INT A -> IRQ 11
[ 6.416240] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver
[ 6.420239] scsi 2:0:1:0: Direct-Access QEMU QEMU HARDDISK 2.4. PQ: 0 ANSI: 5
[ 7.619057] sd 2:0:0:0: [sda] 1024000 512-byte logical blocks: (524 MB/500 MiB)
[ 7.628055] sd 2:0:0:0: [sda] Write Protect is off
[ 7.634055] sd 2:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 7.639054] sd 2:0:0:0: Attached scsi generic sg0 type 0
[ 7.680048] sd 2:0:1:0: [sdb] 8388608 512-byte logical blocks: (4.29 GB/4.00 GiB)
[ 7.684047] sd 2:0:1:0: [sdb] Write Protect is off
[ 7.690046] sd 2:0:1:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 7.701044] sd 2:0:1:0: Attached scsi generic sg1 type 0
[ 7.780032] sd 2:0:1:0: [sdb] Attached SCSI disk
[ 7.782032] sd 2:0:0:0: [sda] Attached SCSI disk
supermin: internal insmod crc-ccitt.ko.xz
supermin: running xz
done with xz 4679 read
supermin: internal insmod crc-itu-t.ko.xz
supermin: running xz
done with xz 4679 read
supermin: internal insmod crc8.ko.xz
supermin: running xz
done with xz 4487 read
supermin: internal insmod libcrc32c.ko.xz
supermin: running xz
done with xz 5359 read
supermin: picked /sys/block/sdb/dev as root device
supermin: creating /dev/root as block special 8:16
supermin: mounting new root on /root
[ 7.939008] EXT4-fs (sdb): mounting ext2 file system using the ext4 subsystem
[ 8.029994] EXT4-fs (sdb): mounted filesystem without journal. Opts:
supermin: chroot
[ 8.463928] random: nonblocking pool is initialized
Starting /init script ...
[ 11.770426] ldconfig (93) used greatest stack depth: 11528 bytes left
[/usr/lib/tmpfiles.d/journal-nocow.conf:26] Failed to replace specifiers: /var/log/journal/%m
[/usr/lib/tmpfiles.d/systemd.conf:26] Failed to replace specifiers: /run/log/journal/%m
[/usr/lib/tmpfiles.d/systemd.conf:28] Failed to replace specifiers: /run/log/journal/%m
[/usr/lib/tmpfiles.d/systemd.conf:29] Failed to replace specifiers: /run/log/journal/%m
[/usr/lib/tmpfiles.d/systemd.conf:32] Failed to replace specifiers: /var/log/journal/%m
[/usr/lib/tmpfiles.d/systemd.conf:34] Failed to replace specifiers: /var/log/journal/%m
[/usr/lib/tmpfiles.d/systemd.conf:35] Failed to replace specifiers: /var/log/journal/%m
starting version 225
[ 23.084706] input: PC Speaker as /devices/platform/pcspkr/input/input3
[ 23.269678] PCSP: Timer resolution is not sufficient (1000000nS)
[ 23.270677] PCSP: Make sure you have HPET and ACPI enabled.
[ 23.270677] PCSP: Turned into nopcm mode.
[ 25.258375] kvm: Nested Virtualization enabled
/init: line 86: /sys/block/hd*/queue/scheduler: No such file or directory
/init: line 86: /sys/block/ubd*/queue/scheduler: No such file or directory
/init: line 86: /sys/block/vd*/queue/scheduler: No such file or directory
[ 26.943119] ip (136) used greatest stack depth: 11416 bytes left
mdadm: No arrays found in config file or automatically
lvmetad is not active yet, using direct activation during sysinit
[
]
Linux (none) 4.2.0-1.fc24.x86_64+debug #1 SMP Mon Aug 31 15:39:13 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
/dev:
total 0
crw------- 1 root root 10, 235 Sep 4 17:36 autofs
drwxr-xr-x 2 root root 80 Sep 4 17:36 block
drwxr-xr-x 2 root root 80 Sep 4 17:36 bsg
crw------- 1 root root 10, 234 Sep 4 17:36 btrfs-control
drwxr-xr-x 3 root root 60 Sep 4 17:35 bus
drwxr-xr-x 2 root root 2380 Sep 4 17:36 char
crw------- 1 root root 5, 1 Sep 4 17:36 console
lrwxrwxrwx 1 root root 11 Sep 4 17:36 core -> /proc/kcore
drwxr-xr-x 3 root root 60 Sep 4 17:35 cpu
crw------- 1 root root 10, 62 Sep 4 17:36 cpu_dma_latency
crw------- 1 root root 10, 203 Sep 4 17:36 cuse
drwxr-xr-x 5 root root 100 Sep 4 17:36 disk
lrwxrwxrwx 1 root root 13 Sep 4 17:36 fd -> /proc/self/fd
crw-rw-rw- 1 root root 1, 7 Sep 4 17:36 full
crw-rw-rw- 1 root root 10, 229 Sep 4 17:36 fuse
crw------- 1 root root 10, 183 Sep 4 17:36 hwrng
drwxr-xr-x 3 root root 160 Sep 4 17:36 input
crw-r--r-- 1 root root 1, 11 Sep 4 17:36 kmsg
crw------- 1 root root 10, 232 Sep 4 17:36 kvm
crw-rw---- 1 root disk 10, 237 Sep 4 17:36 loop-control
drwxr-xr-x 2 root root 60 Sep 4 17:35 mapper
crw------- 1 root root 10, 227 Sep 4 17:36 mcelog
crw------- 1 root root 10, 57 Sep 4 17:36 megadev0
crw------- 1 root root 1, 1 Sep 4 17:36 mem
crw------- 1 root root 10, 59 Sep 4 17:36 memory_bandwidth
crw------- 1 root root 254, 0 Sep 4 17:36 ndctl0
drwxr-xr-x 2 root root 60 Sep 4 17:36 net
crw------- 1 root root 10, 61 Sep 4 17:36 network_latency
crw------- 1 root root 10, 60 Sep 4 17:36 network_throughput
crw-rw-rw- 1 root root 1, 3 Sep 4 17:36 null
crw------- 1 root root 10, 144 Sep 4 17:36 nvram
crw------- 1 root root 1, 4 Sep 4 17:36 port
crw------- 1 root root 108, 0 Sep 4 17:36 ppp
crw-rw-rw- 1 root root 5, 2 Sep 4 17:36 ptmx
crw-rw-rw- 1 root root 1, 8 Sep 4 17:36 random
drwxr-xr-x 2 root root 60 Sep 4 17:35 raw
crw------- 1 root root 10, 58 Sep 4 17:36 rfkill
lrwxrwxrwx 1 root root 4 Sep 4 17:36 rtc -> rtc0
crw------- 1 root root 252, 0 Sep 4 17:36 rtc0
brw------- 1 root root 8, 0 Sep 4 17:36 sda
brw------- 1 root root 8, 16 Sep 4 17:36 sdb
crw------- 1 root root 21, 0 Sep 4 17:36 sg0
crw------- 1 root root 21, 1 Sep 4 17:36 sg1
crw------- 1 root root 10, 231 Sep 4 17:36 snapshot
drwxr-xr-x 3 root root 120 Sep 4 17:36 snd
lrwxrwxrwx 1 root root 15 Sep 4 17:36 stderr -> /proc/self/fd/2
lrwxrwxrwx 1 root root 15 Sep 4 17:36 stdin -> /proc/self/fd/0
lrwxrwxrwx 1 root root 15 Sep 4 17:36 stdout -> /proc/self/fd/1
crw-rw-rw- 1 root root 5, 0 Sep 4 17:36 tty
crw------- 1 root root 4, 0 Sep 4 17:36 tty0
crw------- 1 root root 4, 1 Sep 4 17:36 tty1
crw------- 1 root root 4, 10 Sep 4 17:36 tty10
crw------- 1 root root 4, 11 Sep 4 17:36 tty11
crw------- 1 root root 4, 12 Sep 4 17:36 tty12
crw------- 1 root root 4, 13 Sep 4 17:36 tty13
crw------- 1 root root 4, 14 Sep 4 17:36 tty14
crw------- 1 root root 4, 15 Sep 4 17:36 tty15
crw------- 1 root root 4, 16 Sep 4 17:36 tty16
crw------- 1 root root 4, 17 Sep 4 17:36 tty17
crw------- 1 root root 4, 18 Sep 4 17:36 tty18
crw------- 1 root root 4, 19 Sep 4 17:36 tty19
crw------- 1 root root 4, 2 Sep 4 17:36 tty2
crw------- 1 root root 4, 20 Sep 4 17:36 tty20
crw------- 1 root root 4, 21 Sep 4 17:36 tty21
crw------- 1 root root 4, 22 Sep 4 17:36 tty22
crw------- 1 root root 4, 23 Sep 4 17:36 tty23
crw------- 1 root root 4, 24 Sep 4 17:36 tty24
crw------- 1 root root 4, 25 Sep 4 17:36 tty25
crw------- 1 root root 4, 26 Sep 4 17:36 tty26
crw------- 1 root root 4, 27 Sep 4 17:36 tty27
crw------- 1 root root 4, 28 Sep 4 17:36 tty28
crw------- 1 root root 4, 29 Sep 4 17:36 tty29
crw------- 1 root root 4, 3 Sep 4 17:36 tty3
crw------- 1 root root 4, 30 Sep 4 17:36 tty30
crw------- 1 root root 4, 31 Sep 4 17:36 tty31
crw------- 1 root root 4, 32 Sep 4 17:36 tty32
crw------- 1 root root 4, 33 Sep 4 17:36 tty33
crw------- 1 root root 4, 34 Sep 4 17:36 tty34
crw------- 1 root root 4, 35 Sep 4 17:36 tty35
crw------- 1 root root 4, 36 Sep 4 17:36 tty36
crw------- 1 root root 4, 37 Sep 4 17:36 tty37
crw------- 1 root root 4, 38 Sep 4 17:36 tty38
crw------- 1 root root 4, 39 Sep 4 17:36 tty39
crw------- 1 root root 4, 4 Sep 4 17:36 tty4
crw------- 1 root root 4, 40 Sep 4 17:36 tty40
crw------- 1 root root 4, 41 Sep 4 17:36 tty41
crw------- 1 root root 4, 42 Sep 4 17:36 tty42
crw------- 1 root root 4, 43 Sep 4 17:36 tty43
crw------- 1 root root 4, 44 Sep 4 17:36 tty44
crw------- 1 root root 4, 45 Sep 4 17:36 tty45
crw------- 1 root root 4, 46 Sep 4 17:36 tty46
crw------- 1 root root 4, 47 Sep 4 17:36 tty47
crw------- 1 root root 4, 48 Sep 4 17:36 tty48
crw------- 1 root root 4, 49 Sep 4 17:36 tty49
crw------- 1 root root 4, 5 Sep 4 17:36 tty5
crw------- 1 root root 4, 50 Sep 4 17:36 tty50
crw------- 1 root root 4, 51 Sep 4 17:36 tty51
crw------- 1 root root 4, 52 Sep 4 17:36 tty52
crw------- 1 root root 4, 53 Sep 4 17:36 tty53
crw------- 1 root root 4, 54 Sep 4 17:36 tty54
crw------- 1 root root 4, 55 Sep 4 17:36 tty55
crw------- 1 root root 4, 56 Sep 4 17:36 tty56
crw------- 1 root root 4, 57 Sep 4 17:36 tty57
crw------- 1 root root 4, 58 Sep 4 17:36 tty58
crw------- 1 root root 4, 59 Sep 4 17:36 tty59
crw------- 1 root root 4, 6 Sep 4 17:36 tty6
crw------- 1 root root 4, 60 Sep 4 17:36 tty60
crw------- 1 root root 4, 61 Sep 4 17:36 tty61
crw------- 1 root root 4, 62 Sep 4 17:36 tty62
crw------- 1 root root 4, 63 Sep 4 17:36 tty63
crw------- 1 root root 4, 7 Sep 4 17:36 tty7
crw------- 1 root root 4, 8 Sep 4 17:36 tty8
crw------- 1 root root 4, 9 Sep 4 17:36 tty9
crw------- 1 root root 4, 64 Sep 4 17:36 ttyS0
crw------- 1 root root 4, 65 Sep 4 17:36 ttyS1
crw------- 1 root root 4, 66 Sep 4 17:36 ttyS2
crw------- 1 root root 4, 67 Sep 4 17:36 ttyS3
crw------- 1 root root 10, 239 Sep 4 17:36 uhid
crw------- 1 root root 10, 223 Sep 4 17:36 uinput
crw-rw-rw- 1 root root 1, 9 Sep 4 17:36 urandom
crw------- 1 root root 249, 0 Sep 4 17:36 usbmon0
crw------- 1 root root 249, 1 Sep 4 17:36 usbmon1
crw------- 1 root root 7, 0 Sep 4 17:36 vcs
crw------- 1 root root 7, 1 Sep 4 17:36 vcs1
crw------- 1 root root 7, 128 Sep 4 17:36 vcsa
crw------- 1 root root 7, 129 Sep 4 17:36 vcsa1
drwxr-xr-x 2 root root 60 Sep 4 17:36 vfio
crw------- 1 root root 10, 63 Sep 4 17:36 vga_arbiter
crw------- 1 root root 10, 137 Sep 4 17:36 vhci
crw------- 1 root root 10, 238 Sep 4 17:36 vhost-net
drwxr-xr-x 2 root root 60 Sep 4 17:36 virtio-ports
crw------- 1 root root 245, 1 Sep 4 17:36 vport1p1
crw-rw-rw- 1 root root 1, 5 Sep 4 17:36 zero
/dev/block:
total 0
lrwxrwxrwx 1 root root 6 Sep 4 17:36 8:0 -> ../sda
lrwxrwxrwx 1 root root 6 Sep 4 17:36 8:16 -> ../sdb
/dev/bsg:
total 0
crw------- 1 root root 250, 0 Sep 4 17:36 2:0:0:0
crw------- 1 root root 250, 1 Sep 4 17:36 2:0:1:0
/dev/bus:
total 0
drwxr-xr-x 3 root root 60 Sep 4 17:35 usb
/dev/bus/usb:
total 0
drwxr-xr-x 2 root root 60 Sep 4 17:35 001
/dev/bus/usb/001:
total 0
crw------- 1 root root 189, 0 Sep 4 17:36 001
/dev/char:
total 0
lrwxrwxrwx 1 root root 8 Sep 4 17:36 10:144 -> ../nvram
lrwxrwxrwx 1 root root 8 Sep 4 17:36 10:183 -> ../hwrng
lrwxrwxrwx 1 root root 9 Sep 4 17:36 10:227 -> ../mcelog
lrwxrwxrwx 1 root root 11 Sep 4 17:36 10:231 -> ../snapshot
lrwxrwxrwx 1 root root 6 Sep 4 17:36 10:232 -> ../kvm
lrwxrwxrwx 1 root root 9 Sep 4 17:36 10:235 -> ../autofs
lrwxrwxrwx 1 root root 17 Sep 4 17:36 10:236 -> ../mapper/control
lrwxrwxrwx 1 root root 11 Sep 4 17:36 10:57 -> ../megadev0
lrwxrwxrwx 1 root root 9 Sep 4 17:36 10:58 -> ../rfkill
lrwxrwxrwx 1 root root 19 Sep 4 17:36 10:59 -> ../memory_bandwidth
lrwxrwxrwx 1 root root 21 Sep 4 17:36 10:60 -> ../network_throughput
lrwxrwxrwx 1 root root 18 Sep 4 17:36 10:61 -> ../network_latency
lrwxrwxrwx 1 root root 18 Sep 4 17:36 10:62 -> ../cpu_dma_latency
lrwxrwxrwx 1 root root 14 Sep 4 17:36 10:63 -> ../vga_arbiter
lrwxrwxrwx 1 root root 16 Sep 4 17:36 116:2 -> ../snd/controlC0
lrwxrwxrwx 1 root root 12 Sep 4 17:36 116:33 -> ../snd/timer
lrwxrwxrwx 1 root root 15 Sep 4 17:36 13:32 -> ../input/mouse0
lrwxrwxrwx 1 root root 13 Sep 4 17:36 13:63 -> ../input/mice
lrwxrwxrwx 1 root root 15 Sep 4 17:36 13:64 -> ../input/event0
lrwxrwxrwx 1 root root 15 Sep 4 17:36 13:65 -> ../input/event1
lrwxrwxrwx 1 root root 15 Sep 4 17:36 13:66 -> ../input/event2
lrwxrwxrwx 1 root root 13 Sep 4 17:36 162:0 -> ../raw/rawctl
lrwxrwxrwx 1 root root 18 Sep 4 17:36 189:0 -> ../bus/usb/001/001
lrwxrwxrwx 1 root root 6 Sep 4 17:36 1:1 -> ../mem
lrwxrwxrwx 1 root root 7 Sep 4 17:36 1:11 -> ../kmsg
lrwxrwxrwx 1 root root 7 Sep 4 17:36 1:3 -> ../null
lrwxrwxrwx 1 root root 7 Sep 4 17:36 1:4 -> ../port
lrwxrwxrwx 1 root root 7 Sep 4 17:36 1:5 -> ../zero
lrwxrwxrwx 1 root root 7 Sep 4 17:36 1:7 -> ../full
lrwxrwxrwx 1 root root 9 Sep 4 17:36 1:8 -> ../random
lrwxrwxrwx 1 root root 10 Sep 4 17:36 1:9 -> ../urandom
lrwxrwxrwx 1 root root 12 Sep 4 17:36 202:0 -> ../cpu/0/msr
lrwxrwxrwx 1 root root 14 Sep 4 17:36 203:0 -> ../cpu/0/cpuid
lrwxrwxrwx 1 root root 6 Sep 4 17:36 21:0 -> ../sg0
lrwxrwxrwx 1 root root 6 Sep 4 17:36 21:1 -> ../sg1
lrwxrwxrwx 1 root root 11 Sep 4 17:36 245:1 -> ../vport1p1
lrwxrwxrwx 1 root root 10 Sep 4 17:36 249:0 -> ../usbmon0
lrwxrwxrwx 1 root root 10 Sep 4 17:36 249:1 -> ../usbmon1
lrwxrwxrwx 1 root root 14 Sep 4 17:36 250:0 -> ../bsg/2:0:0:0
lrwxrwxrwx 1 root root 14 Sep 4 17:36 250:1 -> ../bsg/2:0:1:0
lrwxrwxrwx 1 root root 7 Sep 4 17:36 252:0 -> ../rtc0
lrwxrwxrwx 1 root root 9 Sep 4 17:36 254:0 -> ../ndctl0
lrwxrwxrwx 1 root root 7 Sep 4 17:36 4:0 -> ../tty0
lrwxrwxrwx 1 root root 7 Sep 4 17:36 4:1 -> ../tty1
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:10 -> ../tty10
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:11 -> ../tty11
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:12 -> ../tty12
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:13 -> ../tty13
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:14 -> ../tty14
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:15 -> ../tty15
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:16 -> ../tty16
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:17 -> ../tty17
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:18 -> ../tty18
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:19 -> ../tty19
lrwxrwxrwx 1 root root 7 Sep 4 17:36 4:2 -> ../tty2
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:20 -> ../tty20
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:21 -> ../tty21
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:22 -> ../tty22
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:23 -> ../tty23
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:24 -> ../tty24
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:25 -> ../tty25
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:26 -> ../tty26
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:27 -> ../tty27
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:28 -> ../tty28
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:29 -> ../tty29
lrwxrwxrwx 1 root root 7 Sep 4 17:36 4:3 -> ../tty3
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:30 -> ../tty30
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:31 -> ../tty31
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:32 -> ../tty32
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:33 -> ../tty33
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:34 -> ../tty34
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:35 -> ../tty35
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:36 -> ../tty36
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:37 -> ../tty37
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:38 -> ../tty38
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:39 -> ../tty39
lrwxrwxrwx 1 root root 7 Sep 4 17:36 4:4 -> ../tty4
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:40 -> ../tty40
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:41 -> ../tty41
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:42 -> ../tty42
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:43 -> ../tty43
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:44 -> ../tty44
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:45 -> ../tty45
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:46 -> ../tty46
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:47 -> ../tty47
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:48 -> ../tty48
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:49 -> ../tty49
lrwxrwxrwx 1 root root 7 Sep 4 17:36 4:5 -> ../tty5
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:50 -> ../tty50
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:51 -> ../tty51
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:52 -> ../tty52
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:53 -> ../tty53
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:54 -> ../tty54
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:55 -> ../tty55
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:56 -> ../tty56
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:57 -> ../tty57
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:58 -> ../tty58
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:59 -> ../tty59
lrwxrwxrwx 1 root root 7 Sep 4 17:36 4:6 -> ../tty6
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:60 -> ../tty60
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:61 -> ../tty61
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:62 -> ../tty62
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:63 -> ../tty63
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:64 -> ../ttyS0
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:65 -> ../ttyS1
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:66 -> ../ttyS2
lrwxrwxrwx 1 root root 8 Sep 4 17:36 4:67 -> ../ttyS3
lrwxrwxrwx 1 root root 7 Sep 4 17:36 4:7 -> ../tty7
lrwxrwxrwx 1 root root 7 Sep 4 17:36 4:8 -> ../tty8
lrwxrwxrwx 1 root root 7 Sep 4 17:36 4:9 -> ../tty9
lrwxrwxrwx 1 root root 6 Sep 4 17:36 5:0 -> ../tty
lrwxrwxrwx 1 root root 10 Sep 4 17:36 5:1 -> ../console
lrwxrwxrwx 1 root root 7 Sep 4 17:36 5:2 -> ../ptmx
lrwxrwxrwx 1 root root 6 Sep 4 17:36 7:0 -> ../vcs
lrwxrwxrwx 1 root root 7 Sep 4 17:36 7:1 -> ../vcs1
lrwxrwxrwx 1 root root 7 Sep 4 17:36 7:128 -> ../vcsa
lrwxrwxrwx 1 root root 8 Sep 4 17:36 7:129 -> ../vcsa1
/dev/cpu:
total 0
drwxr-xr-x 2 root root 80 Sep 4 17:35 0
/dev/cpu/0:
total 0
crw------- 1 root root 203, 0 Sep 4 17:36 cpuid
crw------- 1 root root 202, 0 Sep 4 17:36 msr
/dev/disk:
total 0
drwxr-xr-x 2 root root 80 Sep 4 17:36 by-id
drwxr-xr-x 2 root root 80 Sep 4 17:36 by-path
drwxr-xr-x 2 root root 60 Sep 4 17:36 by-uuid
/dev/disk/by-id:
total 0
lrwxrwxrwx 1 root root 9 Sep 4 17:36 scsi-0QEMU_QEMU_HARDDISK_drive-scsi0-0-0-0 -> ../../sda
lrwxrwxrwx 1 root root 9 Sep 4 17:36 scsi-0QEMU_QEMU_HARDDISK_drive-scsi0-0-1-0 -> ../../sdb
/dev/disk/by-path:
total 0
lrwxrwxrwx 1 root root 9 Sep 4 17:36 pci-0000:00:02.0-scsi-0:0:0:0 -> ../../sda
lrwxrwxrwx 1 root root 9 Sep 4 17:36 pci-0000:00:02.0-scsi-0:0:1:0 -> ../../sdb
/dev/disk/by-uuid:
total 0
lrwxrwxrwx 1 root root 9 Sep 4 17:36 15861cf1-098c-4f60-ac48-b84466e458e8 -> ../../sdb
/dev/input:
total 0
drwxr-xr-x 2 root root 120 Sep 4 17:36 by-path
crw------- 1 root root 13, 64 Sep 4 17:36 event0
crw------- 1 root root 13, 65 Sep 4 17:36 event1
crw------- 1 root root 13, 66 Sep 4 17:36 event2
crw------- 1 root root 13, 63 Sep 4 17:36 mice
crw------- 1 root root 13, 32 Sep 4 17:36 mouse0
/dev/input/by-path:
total 0
lrwxrwxrwx 1 root root 9 Sep 4 17:36 platform-i8042-serio-0-event-kbd -> ../event1
lrwxrwxrwx 1 root root 9 Sep 4 17:36 platform-i8042-serio-1-event-mouse -> ../event0
lrwxrwxrwx 1 root root 9 Sep 4 17:36 platform-i8042-serio-1-mouse -> ../mouse0
lrwxrwxrwx 1 root root 9 Sep 4 17:36 platform-pcspkr-event-spkr -> ../event2
/dev/mapper:
total 0
crw------- 1 root root 10, 236 Sep 4 17:36 control
/dev/net:
total 0
crw-rw-rw- 1 root root 10, 200 Sep 4 17:36 tun
/dev/raw:
total 0
crw------- 1 root root 162, 0 Sep 4 17:36 rawctl
/dev/snd:
total 0
drwxr-xr-x 2 root root 60 Sep 4 17:36 by-path
crw-rw---- 1 root audio 116, 2 Sep 4 17:36 controlC0
crw-rw---- 1 root audio 116, 1 Sep 4 17:36 seq
crw-rw---- 1 root audio 116, 33 Sep 4 17:36 timer
/dev/snd/by-path:
total 0
lrwxrwxrwx 1 root root 12 Sep 4 17:36 platform-pcspkr -> ../controlC0
/dev/vfio:
total 0
crw------- 1 root root 10, 196 Sep 4 17:36 vfio
/dev/virtio-ports:
total 0
lrwxrwxrwx 1 root root 11 Sep 4 17:36 org.libguestfs.channel.0 -> ../vport1p1
/dev/root / ext2 rw,noatime 0 0
/proc /proc proc rw,relatime 0 0
/sys /sys sysfs rw,relatime 0 0
tmpfs /run tmpfs rw,nosuid,relatime,size=94060k,mode=755 0 0
/dev /dev devtmpfs rw,relatime,size=231600k,nr_inodes=57900,mode=755 0 0
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 brd 127.255.255.255 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
Module Size Used by
kvm_amd 73728 0
kvm 552960 1 kvm_amd
snd_pcsp 16384 0
snd_pcm 118784 1 snd_pcsp
snd_timer 32768 1 snd_pcm
snd 86016 3 snd_timer,snd_pcm,snd_pcsp
serio_raw 16384 0
soundcore 16384 1 snd
ata_generic 16384 0
pata_acpi 16384 0
libcrc32c 16384 0
crc8 16384 0
crc_itu_t 16384 0
crc_ccitt 16384 0
virtio_pci 24576 0
virtio_mmio 16384 0
virtio_input 16384 0
virtio_balloon 16384 0
virtio_scsi 20480 1
sym53c8xx 81920 0
scsi_transport_spi 32768 1 sym53c8xx
megaraid_sas 110592 0
megaraid_mbox 36864 0
megaraid_mm 20480 1 megaraid_mbox
megaraid 40960 0
ideapad_laptop 24576 0
rfkill 24576 1 ideapad_laptop
sparse_keymap 16384 1 ideapad_laptop
video 40960 1 ideapad_laptop
virtio_net 28672 0
virtio_gpu 45056 0
ttm 94208 1 virtio_gpu
drm_kms_helper 118784 1 virtio_gpu
drm 344064 3 ttm,drm_kms_helper,virtio_gpu
virtio_console 28672 0
virtio_rng 16384 0
virtio_blk 20480 0
virtio_ring 20480 10 virtio_blk,virtio_gpu,virtio_net,virtio_pci,virtio_rng,virtio_balloon,virtio_input,virtio_console,virtio_mmio,virtio_scsi
virtio 16384 10 virtio_blk,virtio_gpu,virtio_net,virtio_pci,virtio_rng,virtio_balloon,virtio_input,virtio_console,virtio_mmio,virtio_scsi
crc32 16384 0
Fri Sep 4 17:36:26 UTC 2015
clocksource: refined-jiffies
uptime: 32.43 0.73
guestfsd --verbose
trying to open virtio-serial channel '/dev/virtio-ports/org.libguestfs.channel.0'
udevadm --debug settle
calling: settle
libguestfs: recv_from_daemon: received GUESTFS_LAUNCH_FLAG
libguestfs: [38006ms] appliance is up
libguestfs: trace: launch = 0
libguestfs: trace: part_disk "/dev/sda" "mbr"
guestfsd: main_loop: new request, len 0x3c
udevadm --debug settle
calling: settle
parted -s -- /dev/sda mklabel msdos mkpart primary 128s -128s
Warning: The resulting partition is not properly aligned for best performance.
udevadm --debug settle
calling: settle
libguestfs: trace: part_disk = 0
libguestfs: trace: pvcreate "/dev/sda1"
guestfsd: main_loop: proc 210 (part_disk) took 3.92 seconds
guestfsd: main_loop: new request, len 0x38
lvm pvcreate --force /dev/sda1
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
udevadm --debug settle
calling: settle
libguestfs: trace: pvcreate = 0
libguestfs: trace: vgcreate "VG" "/dev/sda1"
guestfsd: main_loop: proc 39 (pvcreate) took 1.38 seconds
guestfsd: main_loop: new request, len 0x44
lvm vgcreate VG /dev/sda1
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
udevadm --debug settle
calling: settle
libguestfs: trace: vgcreate = 0
libguestfs: trace: lvcreate "LV1" "VG" 50
guestfsd: main_loop: proc 40 (vgcreate) took 1.41 seconds
guestfsd: main_loop: new request, len 0x3c
lvm lvcreate -L 50 -n LV1 VG
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
udevadm --debug settle
calling: settle
libguestfs: trace: lvcreate = 0
libguestfs: trace: lvcreate "LV2" "VG" 50
guestfsd: main_loop: proc 41 (lvcreate) took 3.10 seconds
guestfsd: main_loop: new request, len 0x3c
lvm lvcreate -L 50 -n LV2 VG
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
udevadm --debug settle
calling: settle
libguestfs: trace: lvcreate = 0
libguestfs: trace: lvremove "/dev/VG/LV1"
guestfsd: main_loop: proc 41 (lvcreate) took 3.19 seconds
guestfsd: main_loop: new request, len 0x38
lvm lvremove -f /dev/VG/LV1
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
[ 47.779951] BUG: unable to handle kernel NULL pointer dereference at 00000000000009d0
[ 47.779951] IP: [<ffffffff8140e820>] __blkg_lookup+0x40/0xe0
[ 47.779951] PGD 0
[ 47.779951] Oops: 0000 [#1] SMP
[ 47.779951] Modules linked in: kvm_amd kvm snd_pcsp snd_pcm snd_timer snd serio_raw soundcore ata_generic pata_acpi libcrc32c crc8 crc_itu_t crc_ccitt virtio_pci virtio_mmio virtio_input virtio_balloon virtio_scsi sym53c8xx scsi_transport_spi megaraid_sas megaraid_mbox megaraid_mm megaraid ideapad_laptop rfkill sparse_keymap video virtio_net virtio_gpu ttm drm_kms_helper drm virtio_console virtio_rng virtio_blk virtio_ring virtio crc32
[ 47.779951] CPU: 0 PID: 194 Comm: lvm Not tainted 4.2.0-1.fc24.x86_64+debug #1
[ 47.779951] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.8.2-20150714_191134- 04/01/2014
[ 47.779951] task: ffff88001bae8000 ti: ffff88001bafc000 task.ti: ffff88001bafc000
[ 47.779951] RIP: 0010:[<ffffffff8140e820>] [<ffffffff8140e820>] __blkg_lookup+0x40/0xe0
[ 47.779951] RSP: 0018:ffff88001baffa28 EFLAGS: 00000046
[ 47.779951] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000001
[ 47.779951] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000046
[ 47.779951] RBP: ffff88001baffa48 R08: 0000000000000000 R09: 0000000000000000
[ 47.779951] R10: ffff88001bae8000 R11: ffffffff81e596c0 R12: 0000000000000000
[ 47.779951] R13: ffffffff8316dda0 R14: 0000000000000000 R15: 0000000000000000
[ 47.779951] FS: 00007ff4591b8840(0000) GS:ffff88001ec00000(0000) knlGS:0000000000000000
[ 47.779951] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 47.779951] CR2: 00000000000009d0 CR3: 000000001bb1f000 CR4: 00000000000006f0
[ 47.779951] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 47.779951] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
[ 47.779951] Stack:
[ 47.779951] ffffffff8316dda0 ffff88001b9e3a00 ffff88001bf2abf8 ffff88001bf2b620
[ 47.779951] ffff88001baffa88 ffffffff81412b94 ffffffff81412b16 ffff88001bf2b620
[ 47.779951] ffff88001baffa88 ffff88001bf2abf8 ffffffff81ec99e0 0000000000000000
[ 47.779951] Call Trace:
[ 47.779951] [<ffffffff81412b94>] blk_throtl_drain+0xb4/0x220
[ 47.779951] [<ffffffff81412b16>] ? blk_throtl_drain+0x36/0x220
[ 47.779951] [<ffffffff8140f9bd>] blkcg_drain_queue+0x2d/0x60
[ 47.779951] [<ffffffff813e9bf9>] __blk_drain_queue+0xc9/0x1a0
[ 47.779951] [<ffffffff813eb5d8>] ? blk_queue_bypass_start+0x68/0xb0
[ 47.779951] [<ffffffff813eb5e2>] blk_queue_bypass_start+0x72/0xb0
[ 47.779951] [<ffffffff8140d8f9>] blkcg_deactivate_policy+0x39/0x100
[ 47.779951] [<ffffffff81412e58>] blk_throtl_exit+0x38/0x50
[ 47.779951] [<ffffffff8140fa29>] blkcg_exit_queue+0x39/0x40
[ 47.779951] [<ffffffff813f1cae>] blk_release_queue+0x1e/0xc0
[ 47.779951] [<ffffffff8142286a>] kobject_release+0x7a/0x190
[ 47.779951] [<ffffffff8142271f>] kobject_put+0x2f/0x60
[ 47.779951] [<ffffffff813ed3cb>] blk_cleanup_queue+0x18b/0x280
[ 47.779951] [<ffffffff816b03a1>] cleanup_mapped_device+0xe1/0x110
[ 47.779951] [<ffffffff816b3278>] __dm_destroy+0x1a8/0x2c0
[ 47.779951] [<ffffffff816b47c3>] dm_destroy+0x13/0x20
[ 47.779951] [<ffffffff816ba24d>] dev_remove+0x10d/0x170
[ 47.779951] [<ffffffff816ba140>] ? dev_suspend+0x280/0x280
[ 47.779951] [<ffffffff816ba952>] ctl_ioctl+0x282/0x550
[ 47.779951] [<ffffffff8138370c>] ? SYSC_semtimedop+0x30c/0x1090
[ 47.779951] [<ffffffff811284cd>] ? debug_lockdep_rcu_enabled+0x1d/0x20
[ 47.779951] [<ffffffff811090e9>] ? __lock_acquire+0xcb9/0x1d00
[ 47.779951] [<ffffffff810de500>] ? cpu_attach_domain+0x670/0x6d0
[ 47.779951] [<ffffffff816bac33>] dm_ctl_ioctl+0x13/0x20
[ 47.779951] [<ffffffff812857fe>] do_vfs_ioctl+0x2ee/0x550
[ 47.779951] [<ffffffff811284cd>] ? debug_lockdep_rcu_enabled+0x1d/0x20
[ 47.779951] [<ffffffff81291eb6>] ? __fget_light+0x66/0x90
[ 47.779951] [<ffffffff81285ad9>] SyS_ioctl+0x79/0x90
[ 47.779951] [<ffffffff8187192e>] entry_SYSCALL_64_fastpath+0x12/0x76
[ 47.779951] Code: f4 41 89 d6 48 8b 9f 38 01 00 00 e8 ab 9c d1 ff 85 c0 74 09 80 3d e3 64 b2 00 00 74 56 48 85 db 74 09 4c 39 23 0f 84 9a 00 00 00 <49> 63 b4 24 d0 09 00 00 49 8d bd 28 01 00 00 e8 0c 74 01 00 48
[ 47.779951] RIP [<ffffffff8140e820>] __blkg_lookup+0x40/0xe0
[ 47.779951] RSP <ffff88001baffa28>
[ 47.779951] CR2: 00000000000009d0
[ 47.779951] ---[ end trace c0fe868cef596fc1 ]---
[ 47.779951] BUG: sleeping function called from invalid context at include/linux/sched.h:2739
[ 47.779951] in_atomic(): 1, irqs_disabled(): 1, pid: 194, name: lvm
[ 47.779951] INFO: lockdep is turned off.
[ 47.779951] irq event stamp: 97304
[ 47.779951] hardirqs last enabled at (97303): [<ffffffff81870eb0>] _raw_spin_unlock_irq+0x30/0x50
[ 47.779951] hardirqs last disabled at (97304): [<ffffffff81870c7f>] _raw_spin_lock_irq+0x1f/0x80
[ 47.779951] softirqs last enabled at (97294): [<ffffffff810b286a>] __do_softirq+0x39a/0x630
[ 47.779951] softirqs last disabled at (97279): [<ffffffff810b2d4a>] irq_exit+0x11a/0x120
[ 47.779951] CPU: 0 PID: 194 Comm: lvm Tainted: G D 4.2.0-1.fc24.x86_64+debug #1
[ 47.779951] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.8.2-20150714_191134- 04/01/2014
[ 47.779951] 0000000000000000 0000000093beda74 ffff88001baff6a8 ffffffff81867e66
[ 47.779951] 0000000000000000 ffff88001bae8000 ffff88001baff6d8 ffffffff810db111
[ 47.779951] ffff88001baff738 ffffffff81c71115 0000000000000ab3 0000000000000000
[ 47.779951] Call Trace:
[ 47.779951] [<ffffffff81867e66>] dump_stack+0x4c/0x65
[ 47.779951] [<ffffffff810db111>] ___might_sleep+0x181/0x240
[ 47.779951] [<ffffffff810db21d>] __might_sleep+0x4d/0x90
[ 47.779951] [<ffffffff810bf983>] exit_signals+0x33/0x150
[ 47.779951] [<ffffffff810af899>] do_exit+0xc9/0xc30
[ 47.779951] [<ffffffff8111f3f1>] ? kmsg_dump+0x151/0x1a0
[ 47.779951] [<ffffffff8111f2d4>] ? kmsg_dump+0x34/0x1a0
[ 47.779951] [<ffffffff810205fe>] oops_end+0x9e/0xd0
[ 47.779951] [<ffffffff810711a5>] no_context+0x135/0x390
[ 47.779951] [<ffffffff81071488>] __bad_area_nosemaphore+0x88/0x200
[ 47.779951] [<ffffffff81026d49>] ? sched_clock+0x9/0x10
[ 47.779951] [<ffffffff81071613>] bad_area_nosemaphore+0x13/0x20
[ 47.779951] [<ffffffff81071915>] __do_page_fault+0xd5/0x470
[ 47.779951] [<ffffffff81108a6d>] ? __lock_acquire+0x63d/0x1d00
[ 47.779951] [<ffffffff81071cdf>] do_page_fault+0x2f/0x80
[ 47.779951] [<ffffffff81872577>] ? native_iret+0x7/0x7
[ 47.779951] [<ffffffff81873b48>] page_fault+0x28/0x30
[ 47.779951] [<ffffffff8140e820>] ? __blkg_lookup+0x40/0xe0
[ 47.779951] [<ffffffff8140e86d>] ? __blkg_lookup+0x8d/0xe0
[ 47.779951] [<ffffffff81412b94>] blk_throtl_drain+0xb4/0x220
[ 47.779951] [<ffffffff81412b16>] ? blk_throtl_drain+0x36/0x220
[ 47.779951] [<ffffffff8140f9bd>] blkcg_drain_queue+0x2d/0x60
[ 47.779951] [<ffffffff813e9bf9>] __blk_drain_queue+0xc9/0x1a0
[ 47.779951] [<ffffffff813eb5d8>] ? blk_queue_bypass_start+0x68/0xb0
[ 47.779951] [<ffffffff813eb5e2>] blk_queue_bypass_start+0x72/0xb0
[ 47.779951] [<ffffffff8140d8f9>] blkcg_deactivate_policy+0x39/0x100
[ 47.779951] [<ffffffff81412e58>] blk_throtl_exit+0x38/0x50
[ 47.779951] [<ffffffff8140fa29>] blkcg_exit_queue+0x39/0x40
[ 47.779951] [<ffffffff813f1cae>] blk_release_queue+0x1e/0xc0
[ 47.779951] [<ffffffff8142286a>] kobject_release+0x7a/0x190
[ 47.779951] [<ffffffff8142271f>] kobject_put+0x2f/0x60
[ 47.779951] [<ffffffff813ed3cb>] blk_cleanup_queue+0x18b/0x280
[ 47.779951] [<ffffffff816b03a1>] cleanup_mapped_device+0xe1/0x110
[ 47.779951] [<ffffffff816b3278>] __dm_destroy+0x1a8/0x2c0
[ 47.779951] [<ffffffff816b47c3>] dm_destroy+0x13/0x20
[ 47.779951] [<ffffffff816ba24d>] dev_remove+0x10d/0x170
[ 47.779951] [<ffffffff816ba140>] ? dev_suspend+0x280/0x280
[ 47.779951] [<ffffffff816ba952>] ctl_ioctl+0x282/0x550
[ 47.779951] [<ffffffff8138370c>] ? SYSC_semtimedop+0x30c/0x1090
[ 47.779951] [<ffffffff811284cd>] ? debug_lockdep_rcu_enabled+0x1d/0x20
[ 47.779951] [<ffffffff811090e9>] ? __lock_acquire+0xcb9/0x1d00
[ 47.779951] [<ffffffff810de500>] ? cpu_attach_domain+0x670/0x6d0
[ 47.779951] [<ffffffff816bac33>] dm_ctl_ioctl+0x13/0x20
[ 47.779951] [<ffffffff812857fe>] do_vfs_ioctl+0x2ee/0x550
[ 47.779951] [<ffffffff811284cd>] ? debug_lockdep_rcu_enabled+0x1d/0x20
[ 47.779951] [<ffffffff81291eb6>] ? __fget_light+0x66/0x90
[ 47.779951] [<ffffffff81285ad9>] SyS_ioctl+0x79/0x90
[ 47.779951] [<ffffffff8187192e>] entry_SYSCALL_64_fastpath+0x12/0x76
[ 47.779951] note: lvm[194] exited with preempt_count 2
guestfsd: error: /run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
libguestfs: trace: lvremove = -1 (error)
*stdin*:9: libguestfs: error: lvremove: /run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
libguestfs: trace: close
libguestfs: closing guestfs handle 0x557415044d60 (state 2)
libguestfs: trace: internal_autosync
guestfsd: main_loop: proc 77 (lvremove) took 1.13 seconds
guestfsd: main_loop: new request, len 0x28
umount-all: /proc/mounts: fsname=/dev/root dir=/ type=ext2 opts=rw,noatime freq=0 passno=0
umount-all: /proc/mounts: fsname=/proc dir=/proc type=proc opts=rw,relatime freq=0 passno=0
umount-all: /proc/mounts: fsname=/sys dir=/sys type=sysfs opts=rw,relatime freq=0 passno=0
umount-all: /proc/mounts: fsname=tmpfs dir=/run type=tmpfs opts=rw,nosuid,relatime,size=94060k,mode=755 freq=0 passno=0
umount-all: /proc/mounts: fsname=/dev dir=/dev type=devtmpfs opts=rw,relatime,size=231600k,nr_inodes=57900,mode=755 freq=0 passno=0
fsync /dev/sda
libguestfs: trace: internal_autosync = 0
libguestfs: calling virDomainDestroy "guestfs-zlr3zvogh5lilmw3" flags=0
libguestfs: command: run: rm
libguestfs: command: run: \ -rf /tmp/libguestfsEfp5po