Description of problem ---------------------- Running `libguestfs-test-tool` with 'direct' backend results in (complete, unedited output in the next comment): [. . .] supermin: waiting another 32768000000 ns for /sys/block/sdb/dev to appear supermin: waiting another 65536000000 ns for /sys/block/sdb/dev to appear supermin: waiting another 131072000000 ns for /sys/block/sdb/dev to appear supermin: waiting another 262144000000 ns for /sys/block/sdb/dev to appear supermin: no ext2 root device found [. . .] Please include FULL verbose output in your bug report. [ 524.581179] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000100 [ 524.581179] [ 524.581869] CPU: 0 PID: 1 Comm: init Not tainted 4.0.0-1.fc22.x86_64 #1 [ 524.582011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.8.1-20150318_183358- 04/01/2014 [ 524.582011] 0000000000000000 00000000653c231d ffff88001ddb7e38 ffffffff81783088 [ 524.582011] 0000000000000000 ffffffff81a4c3d0 ffff88001ddb7eb8 ffffffff81781ebe [ 524.582011] ffffffff00000010 ffff88001ddb7ec8 ffff88001ddb7e68 00000000653c231d [ 524.582011] Call Trace: [ 524.582011] [<ffffffff81783088>] dump_stack+0x45/0x57 [ 524.582011] [<ffffffff81781ebe>] panic+0xd0/0x203 [ 524.582011] [<ffffffff8109f63d>] do_exit+0xb3d/0xb40 [ 524.582011] [<ffffffff8121dcf4>] ? vfs_write+0x184/0x210 [ 524.582011] [<ffffffff8109f6d7>] do_group_exit+0x47/0xb0 [ 524.582011] [<ffffffff8109f754>] SyS_exit_group+0x14/0x20 [ 524.582011] [<ffffffff81789509>] system_call_fastpath+0x12/0x17 [ 524.582011] Kernel Offset: 0x0 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffff9fffffff) [ 524.582011] Rebooting in 1 seconds..libguestfs: error: appliance closed the connection unexpectedly, see earlier error messages Version ------- $ uname -r; rpm -q libguestfs-tools-c supermin 4.0.0-1.fc22.x86_64 libguestfs-tools-c-1.29.43-1.fc23.x86_64 supermin-5.1.12-6.fc23.x86_64 How reproducible: Consistently. Steps to Reproduce ------------------ (1) Use the direct backend: $ export LIBGUESTFS_BACKEND=direct (2) Run the `libguestfs-test-tool`: $ libguestfs-test-tool Actual results -------------- `supermin` appliance fails to build as it can't find the root device, the Kernel panics and throws a call trace. Expected results ---------------- `supermin` appliance should build successfully. Additional info --------------- `qemu-sanity-check --accel=kvm` works just fine.
Complete output of `libguestfs-test-tool`: $ libguestfs-test-tool ************************************************************ * IMPORTANT NOTICE * * When reporting bugs, include the COMPLETE, UNEDITED * output below in your bug report. * ************************************************************ LIBGUESTFS_BACKEND=direct PATH=/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/kashyapc/.local/bin:/home/kashyapc/bin SELinux: Permissive guestfs_get_append: (null) guestfs_get_autosync: 1 guestfs_get_backend: direct guestfs_get_backend_settings: [] guestfs_get_cachedir: /var/tmp guestfs_get_direct: 0 guestfs_get_hv: /usr/bin/qemu-kvm guestfs_get_memsize: 500 guestfs_get_network: 0 guestfs_get_path: /usr/lib64/guestfs 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_tmpdir: /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=1.29.43fedora=23,release=1.fc23,libvirt 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=/tmp/libguestfsEsUlSz libguestfs: launch: umask=0002 libguestfs: launch: euid=1001 libguestfs: [00000ms] begin building supermin appliance libguestfs: [00000ms] 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-1001/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-1001/appliance.d supermin: version: 5.1.12 supermin: rpm: detected RPM version 4.12 supermin: package handler: fedora/rpm supermin: acquiring lock on /var/tmp/.guestfs-1001/lock supermin: build: /usr/lib64/guestfs/supermin.d supermin: reading the supermin appliance supermin: build: visiting /usr/lib64/guestfs/supermin.d/base.tar.gz type gzip base image (tar) supermin: build: visiting /usr/lib64/guestfs/supermin.d/daemon.tar.gz type gzip base image (tar) supermin: build: visiting /usr/lib64/guestfs/supermin.d/excludefiles type uncompressed excludefiles supermin: build: visiting /usr/lib64/guestfs/supermin.d/hostfiles type uncompressed hostfiles supermin: build: visiting /usr/lib64/guestfs/supermin.d/init.tar.gz type gzip base image (tar) supermin: build: visiting /usr/lib64/guestfs/supermin.d/packages type uncompressed packages supermin: build: visiting /usr/lib64/guestfs/supermin.d/udev-rules.tar.gz type gzip base image (tar) supermin: mapping package names to installed packages supermin: resolving full list of package dependencies supermin: build: 200 packages, including dependencies supermin: build: 32064 files supermin: build: 17830 files, after removing unreadable files supermin: build: 8300 files, after matching excludefiles supermin: build: 8311 files, after adding hostfiles supermin: build: 8337 files, after munging supermin: kernel: picked kernel vmlinuz-4.0.0-1.fc22.x86_64 supermin: kernel: picked modules path /lib/modules/4.0.0-1.fc22.x86_64 supermin: kernel: kernel_version 4.0.0-1.fc22.x86_64 supermin: kernel: modules /lib/modules/4.0.0-1.fc22.x86_64 supermin: ext2: creating empty ext2 filesystem '/var/tmp/.guestfs-1001/appliance.d.65kyuq4j/root' supermin: ext2: populating from base image supermin: ext2: copying files from host filesystem supermin: open: /usr/bin/chfn: Permission denied supermin: open: /usr/bin/chsh: Permission denied supermin: open: /usr/libexec/dbus-1/dbus-daemon-launch-helper: Permission denied supermin: open: /usr/libexec/utempter/utempter: Permission denied supermin: open: /usr/sbin/build-locale-archive: Permission denied supermin: open: /usr/sbin/glibc_post_upgrade.x86_64: Permission denied supermin: open: /usr/sbin/groupadd: Permission denied supermin: open: /usr/sbin/groupdel: Permission denied supermin: open: /usr/sbin/groupmems: Permission denied supermin: open: /usr/sbin/groupmod: Permission denied supermin: open: /usr/sbin/unix_update: Permission denied supermin: open: /usr/sbin/useradd: Permission denied supermin: open: /usr/sbin/userdel: Permission denied supermin: open: /usr/sbin/usermod: Permission denied supermin: open: /var/lib/systemd/random-seed: Permission denied supermin: ext2: copying kernel modules supermin: ext2: creating minimal initrd '/var/tmp/.guestfs-1001/appliance.d.65kyuq4j/initrd' supermin: ext2: wrote 28 modules to minimal initrd supermin: renaming /var/tmp/.guestfs-1001/appliance.d.65kyuq4j to /var/tmp/.guestfs-1001/appliance.d libguestfs: [03274ms] finished building supermin appliance libguestfs: [03274ms] begin testing qemu features libguestfs: command: run: /usr/bin/qemu-kvm libguestfs: command: run: \ -display none libguestfs: command: run: \ -help libguestfs: command: run: /usr/bin/qemu-kvm libguestfs: command: run: \ -display none libguestfs: command: run: \ -version libguestfs: qemu version 2.2 libguestfs: command: run: /usr/bin/qemu-kvm libguestfs: command: run: \ -display none libguestfs: command: run: \ -machine accel=kvm:tcg libguestfs: command: run: \ -device ? libguestfs: [03375ms] finished testing qemu features [03376ms] /usr/bin/qemu-kvm \ -global virtio-blk-pci.scsi=off \ -nodefconfig \ -enable-fips \ -nodefaults \ -display none \ -cpu host \ -machine accel=kvm:tcg \ -m 500 \ -no-reboot \ -rtc driftfix=slew \ -no-hpet \ -global kvm-pit.lost_tick_policy=discard \ -kernel /var/tmp/.guestfs-1001/appliance.d/kernel \ -initrd /var/tmp/.guestfs-1001/appliance.d/initrd \ -device virtio-scsi-pci,id=scsi \ -drive file=/tmp/libguestfsEsUlSz/scratch.1,cache=unsafe,format=raw,id=hd0,if=none \ -device scsi-hd,drive=hd0 \ -drive file=/var/tmp/.guestfs-1001/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=/tmp/libguestfsEsUlSz/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=screen' \x1b[1;256r\x1b[256;256H\x1b[6n Google, Inc. Serial Graphics Adapter 06/08/14 SGABIOS $Id: sgabios.S 8 2010-04-22 00:03:40Z nlaredo $ (mockbuild@) Sun Jun 8 11:52:13 UTC 2014 Term: 80x24 4 0 \x1b[2J SeaBIOS (version 1.8.1-20150318_183358-) 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 4.0.0-1.fc22.x86_64 (mockbuild.fedoraproject.org) (gcc version 5.0.0 20150319 (Red Hat 5.0.0-0.21) (GCC) ) #1 SMP Mon Apr 13 10:03:33 UTC 2015 [ 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=screen [ 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] PAT configuration [0-7]: WB WC UC- UC WB WC UC- UC [ 0.000000] found SMP MP-table at [mem 0x000f65a0-0x000f65af] mapped at [ffff8800000f65a0] [ 0.000000] Using GB pages for direct mapping [ 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 0x1f200000-0x1f3dffff] [ 0.000000] RAMDISK: [mem 0x1f2d0000-0x1f3dffff] [ 0.000000] No NUMA configuration found [ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000001f3dffff] [ 0.000000] NODE_DATA(0) allocated [mem 0x1f2bc000-0x1f2cffff] [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 0:1f2ac001, primary cpu clock [ 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] 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 0x1f400000-0xfeffbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] setup_percpu: NR_CPUS:1024 nr_cpumask_bits:1 nr_cpu_ids:1 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 32 pages/cpu @ffff88001f000000 s91608 r8192 d31272 u2097152 [ 0.000000] KVM setup async PF for cpu 0 [ 0.000000] kvm-stealtime: cpu 0, msr 1f00e100 [ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 125849 [ 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=screen [ 0.000000] Disabling memory control group subsystem [ 0.000000] PID hash table entries: 2048 (order: 2, 16384 bytes) [ 0.000000] xsave: enabled xstate_bv 0x7, cntxt size 0x340 using standard form [ 0.000000] Memory: 485076K/511480K available (7737K kernel code, 1149K rwdata, 3340K rodata, 1500K init, 1524K bss, 26404K 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] \tRCU dyntick-idle grace-period acceleration is enabled. [ 0.000000] \tRCU restricting CPUs from NR_CPUS=1024 to nr_cpu_ids=1. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1 [ 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] tsc: Detected 2294.686 MHz processor [ 0.001000] Calibrating delay loop (skipped) preset value.. 4589.37 BogoMIPS (lpj=2294686) [ 0.001000] pid_max: default: 32768 minimum: 301 [ 0.001022] Security Framework initialized [ 0.001267] SELinux: Disabled at boot. [ 0.001491] Yama: becoming mindful. [ 0.001821] Dentry cache hash table entries: 65536 (order: 7, 524288 bytes) [ 0.002075] Inode-cache hash table entries: 32768 (order: 6, 262144 bytes) [ 0.002530] Mount-cache hash table entries: 1024 (order: 1, 8192 bytes) [ 0.003003] Mountpoint-cache hash table entries: 1024 (order: 1, 8192 bytes) [ 0.003524] Initializing cgroup subsys blkio [ 0.004004] Initializing cgroup subsys memory [ 0.004260] Initializing cgroup subsys devices [ 0.004520] Initializing cgroup subsys freezer [ 0.004785] Initializing cgroup subsys net_cls [ 0.005003] Initializing cgroup subsys perf_event [ 0.005280] Initializing cgroup subsys net_prio [ 0.005558] Initializing cgroup subsys hugetlb [ 0.006862] mce: CPU supports 10 MCE banks [ 0.007037] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 0.007389] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 0.015617] Freeing SMP alternatives memory: 28K (ffffffff81e98000 - ffffffff81e9f000) [ 0.018243] ftrace: allocating 27819 entries in 109 pages [ 0.024207] x2apic enabled [ 0.025003] Switched APIC routing to physical x2apic. [ 0.026171] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 0.026536] smpboot: CPU0: Intel(R) Core(TM) i5-4670T CPU @ 2.30GHz (fam: 06, model: 3c, stepping: 03) [ 0.027000] Performance Events: 16-deep LBR, Haswell events, Intel PMU driver. [ 0.031137] ... version: 2 [ 0.031356] ... bit width: 48 [ 0.031578] ... generic registers: 8 [ 0.031797] ... value mask: 0000ffffffffffff [ 0.032002] ... max period: 000000007fffffff [ 0.032365] ... fixed-purpose events: 3 [ 0.032583] ... event mask: 00000007000000ff [ 0.033405] x86: Booted up 1 node, 1 CPUs [ 0.033674] smpboot: Total of 1 processors activated (4589.37 BogoMIPS) [ 0.034171] NMI watchdog: disabled (cpu0): hardware events not enabled [ 0.034621] devtmpfs: initialized [ 0.036168] atomic64_test: passed for x86-64 platform with CX8 and with SSE [ 0.036573] pinctrl core: initialized pinctrl subsystem [ 0.036903] RTC time: 19:18:24, date: 05/21/15 [ 0.037078] NET: Registered protocol family 16 [ 0.037514] cpuidle: using governor menu [ 0.037865] PCI: Using configuration type 1 for base access [ 0.038869] ACPI: Interpreter disabled. [ 0.039056] vgaarb: loaded [ 0.039250] SCSI subsystem initialized [ 0.039503] usbcore: registered new interface driver usbfs [ 0.039806] usbcore: registered new interface driver hub [ 0.040006] usbcore: registered new device driver usb [ 0.040351] PCI: Probing PCI hardware [ 0.040573] PCI host bridge to bus 0000:00 [ 0.040808] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] [ 0.041003] pci_bus 0000:00: root bus resource [mem 0x00000000-0xffffffffff] [ 0.041382] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff] [ 0.045542] pci 0000:00:01.1: legacy IDE quirk: reg 0x10: [io 0x01f0-0x01f7] [ 0.045961] pci 0000:00:01.1: legacy IDE quirk: reg 0x14: [io 0x03f6] [ 0.046002] pci 0000:00:01.1: legacy IDE quirk: reg 0x18: [io 0x0170-0x0177] [ 0.046418] pci 0000:00:01.1: legacy IDE quirk: reg 0x1c: [io 0x0376] [ 0.047083] pci 0000:00:01.3: quirk: [io 0x0600-0x063f] claimed by PIIX4 ACPI [ 0.047528] pci 0000:00:01.3: quirk: [io 0x0700-0x070f] claimed by PIIX4 SMB [ 0.060253] pci 0000:00:01.0: PIIX/ICH IRQ router [8086:7000] [ 0.061189] NetLabel: Initializing [ 0.061467] NetLabel: domain hash size = 128 [ 0.061800] NetLabel: protocols = UNLABELED CIPSOv4 [ 0.062010] NetLabel: unlabeled traffic allowed by default [ 0.062438] Switched to clocksource kvm-clock [ 0.065506] pnp: PnP ACPI: disabled [ 0.066504] NET: Registered protocol family 2 [ 0.066958] TCP established hash table entries: 4096 (order: 3, 32768 bytes) [ 0.067372] TCP bind hash table entries: 4096 (order: 4, 65536 bytes) [ 0.067738] TCP: Hash tables configured (established 4096 bind 4096) [ 0.068297] TCP: reno registered [ 0.068479] UDP hash table entries: 256 (order: 1, 8192 bytes) [ 0.068796] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes) [ 0.069254] NET: Registered protocol family 1 [ 0.069518] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 0.069859] pci 0000:00:01.0: PIIX3: Enabling Passive Release [ 0.070259] pci 0000:00:01.0: Activating ISA DMA hang workarounds [ 0.070673] Unpacking initramfs... [ 0.071351] Freeing initrd memory: 1088K (ffff88001f2d0000 - ffff88001f3e0000) [ 0.071851] platform rtc_cmos: registered platform RTC device (no PNP device found) [ 0.078197] microcode: CPU0 sig=0x306c3, pf=0x1, revision=0x1 [ 0.078607] microcode: Microcode Update Driver: v2.00 <tigran.co.uk>, Peter Oruba [ 0.079229] AVX2 version of gcm_enc/dec engaged. [ 0.079576] AES CTR mode by8 optimization enabled [ 0.080030] alg: No test for __gcm-aes-aesni (__driver-gcm-aes-aesni) [ 0.080594] futex hash table entries: 256 (order: 2, 16384 bytes) [ 0.080991] Initialise system trusted keyring [ 0.081260] audit: initializing netlink subsys (disabled) [ 0.081562] audit: type=2000 audit(1432235905.746:1): initialized [ 0.082195] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 0.083586] zpool: loaded [ 0.083761] zbud: loaded [ 0.084043] VFS: Disk quotas dquot_6.5.2 [ 0.084339] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.085101] Key type big_key registered [ 0.085651] alg: No test for stdrng (krng) [ 0.085951] NET: Registered protocol family 38 [ 0.086255] Key type asymmetric registered [ 0.086492] Asymmetric key parser 'x509' registered [ 0.086796] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252) [ 0.087325] io scheduler noop registered [ 0.087554] io scheduler deadline registered [ 0.087832] io scheduler cfq registered (default) [ 0.088364] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 0.088730] pciehp: PCI Express Hot Plug Controller Driver version: 0.4 [ 0.089242] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 0.112260] serial8250: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 0.112999] Non-volatile memory driver v1.3 [ 0.113291] Linux agpgart interface v0.103 [ 0.114325] scsi host0: ata_piix [ 0.114622] scsi host1: ata_piix [ 0.114840] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc060 irq 14 [ 0.115258] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc068 irq 15 [ 0.115886] libphy: Fixed MDIO Bus: probed [ 0.116173] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 0.116545] ehci-pci: EHCI PCI platform driver [ 0.116872] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 0.117253] ohci-pci: OHCI PCI platform driver [ 0.117516] uhci_hcd: USB Universal Host Controller Interface driver [ 0.117949] usbcore: registered new interface driver usbserial [ 0.118304] usbcore: registered new interface driver usbserial_generic [ 0.118684] usbserial: USB Serial support registered for generic [ 0.119099] i8042: PNP: No PS/2 controller found. Probing ports directly. [ 0.119900] serio: i8042 KBD port at 0x60,0x64 irq 1 [ 0.120288] serio: i8042 AUX port at 0x60,0x64 irq 12 [ 0.120749] mousedev: PS/2 mouse device common for all mice [ 0.121257] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input0 [ 0.122816] rtc_cmos rtc_cmos: rtc core: registered rtc_cmos as rtc0 [ 0.123227] rtc_cmos rtc_cmos: alarms up to one day, 114 bytes nvram [ 0.123626] device-mapper: uevent: version 1.0.3 [ 0.123923] device-mapper: ioctl: 4.30.0-ioctl (2014-12-22) initialised: dm-devel [ 0.124560] hidraw: raw HID events driver (C) Jiri Kosina [ 0.124929] usbcore: registered new interface driver usbhid [ 0.125310] usbhid: USB HID core driver [ 0.125554] drop_monitor: Initializing network drop monitor service [ 0.125953] ip_tables: (C) 2000-2006 Netfilter Core Team [ 0.126337] TCP: cubic registered [ 0.126549] Initializing XFRM netlink socket [ 0.126854] NET: Registered protocol family 10 [ 0.127253] mip6: Mobile IPv6 [ 0.127501] NET: Registered protocol family 17 [ 0.127918] Loading compiled-in X.509 certificates [ 0.128850] Loaded X.509 cert 'Fedora kernel signing key: d0cbee4318c9d255a27f7577c0e6d2f9e5322f4f' [ 0.129375] registered taskstats version 1 [ 0.129727] Magic number: 15:857:344 [ 0.129949] tty tty61: hash matches [ 0.130292] rtc_cmos rtc_cmos: setting system clock to 2015-05-21 19:18:25 UTC (1432235905) [ 0.271491] Freeing unused kernel memory: 1500K (ffffffff81d21000 - ffffffff81e98000) [ 0.272150] Write protecting the kernel read-only data: 12288k [ 0.272750] Freeing unused kernel memory: 444K (ffff880001791000 - ffff880001800000) [ 0.273339] Freeing unused kernel memory: 756K (ffff880001b43000 - ffff880001c00000) supermin: mounting /proc supermin: uptime: 0.27 0.16 supermin: ext2 mini initrd starting up: 5.1.12 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=screen supermin: mounting /sys supermin: internal insmod crc32-pclmul.ko.xz insmod: init_module: crc32-pclmul.ko.xz: Invalid module format supermin: internal insmod crc32c-intel.ko.xz insmod: init_module: crc32c-intel.ko.xz: Invalid module format supermin: internal insmod crct10dif-pclmul.ko.xz insmod: init_module: crct10dif-pclmul.ko.xz: Invalid module format supermin: internal insmod crc32.ko.xz insmod: init_module: crc32.ko.xz: Invalid module format supermin: internal insmod virtio.ko.xz insmod: init_module: virtio.ko.xz: Invalid module format supermin: internal insmod virtio_ring.ko.xz insmod: init_module: virtio_ring.ko.xz: Invalid module format supermin: internal insmod virtio_blk.ko.xz insmod: init_module: virtio_blk.ko.xz: Invalid module format supermin: internal insmod virtio-rng.ko.xz insmod: init_module: virtio-rng.ko.xz: Invalid module format supermin: internal insmod virtio_console.ko.xz insmod: init_module: virtio_console.ko.xz: Invalid module format supermin: internal insmod ideapad_slidebar.ko.xz insmod: init_module: ideapad_slidebar.ko.xz: Invalid module format supermin: internal insmod virtio_net.ko.xz insmod: init_module: virtio_net.ko.xz: Invalid module format supermin: internal insmod sparse-keymap.ko.xz insmod: init_module: sparse-keymap.ko.xz: Invalid module format supermin: internal insmod rfkill.ko.xz insmod: init_module: rfkill.ko.xz: Invalid module format supermin: internal insmod ideapad-laptop.ko.xz insmod: init_module: ideapad-laptop.ko.xz: Invalid module format supermin: internal insmod megaraid.ko.xz insmod: init_module: megaraid.ko.xz: Invalid module format supermin: internal insmod megaraid_mm.ko.xz insmod: init_module: megaraid_mm.ko.xz: Invalid module format supermin: internal insmod megaraid_mbox.ko.xz insmod: init_module: megaraid_mbox.ko.xz: Invalid module format supermin: internal insmod megaraid_sas.ko.xz insmod: init_module: megaraid_sas.ko.xz: Invalid module format supermin: internal insmod scsi_transport_spi.ko.xz insmod: init_module: scsi_transport_spi.ko.xz: Invalid module format supermin: internal insmod sym53c8xx.ko.xz insmod: init_module: sym53c8xx.ko.xz: Invalid module format supermin: internal insmod virtio_scsi.ko.xz insmod: init_module: virtio_scsi.ko.xz: Invalid module format supermin: internal insmod virtio_balloon.ko.xz insmod: init_module: virtio_balloon.ko.xz: Invalid module format supermin: internal insmod virtio_mmio.ko.xz insmod: init_module: virtio_mmio.ko.xz: Invalid module format supermin: internal insmod virtio_pci.ko.xz insmod: init_module: virtio_pci.ko.xz: Invalid module format supermin: internal insmod crc-ccitt.ko.xz insmod: init_module: crc-ccitt.ko.xz: Invalid module format supermin: internal insmod crc-itu-t.ko.xz insmod: init_module: crc-itu-t.ko.xz: Invalid module format supermin: internal insmod crc8.ko.xz insmod: init_module: crc8.ko.xz: Invalid module format supermin: internal insmod libcrc32c.ko.xz insmod: init_module: libcrc32c.ko.xz: Invalid module format [ 0.953895] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input2 supermin: waiting another 1024000000 ns for /sys/block/sdb/dev to appear supermin: waiting another 2048000000 ns for /sys/block/sdb/dev to appear supermin: waiting another 4096000000 ns for /sys/block/sdb/dev to appear supermin: waiting another 8192000000 ns for /sys/block/sdb/dev to appear supermin: waiting another 16384000000 ns for /sys/block/sdb/dev to appear supermin: waiting another 32768000000 ns for /sys/block/sdb/dev to appear supermin: waiting another 65536000000 ns for /sys/block/sdb/dev to appear supermin: waiting another 131072000000 ns for /sys/block/sdb/dev to appear supermin: waiting another 262144000000 ns for /sys/block/sdb/dev to appear supermin: no ext2 root device found Please include FULL verbose output in your bug report. [ 524.581179] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000100 [ 524.581179] [ 524.581869] CPU: 0 PID: 1 Comm: init Not tainted 4.0.0-1.fc22.x86_64 #1 [ 524.582011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.8.1-20150318_183358- 04/01/2014 [ 524.582011] 0000000000000000 00000000653c231d ffff88001ddb7e38 ffffffff81783088 [ 524.582011] 0000000000000000 ffffffff81a4c3d0 ffff88001ddb7eb8 ffffffff81781ebe [ 524.582011] ffffffff00000010 ffff88001ddb7ec8 ffff88001ddb7e68 00000000653c231d [ 524.582011] Call Trace: [ 524.582011] [<ffffffff81783088>] dump_stack+0x45/0x57 [ 524.582011] [<ffffffff81781ebe>] panic+0xd0/0x203 [ 524.582011] [<ffffffff8109f63d>] do_exit+0xb3d/0xb40 [ 524.582011] [<ffffffff8121dcf4>] ? vfs_write+0x184/0x210 [ 524.582011] [<ffffffff8109f6d7>] do_group_exit+0x47/0xb0 [ 524.582011] [<ffffffff8109f754>] SyS_exit_group+0x14/0x20 [ 524.582011] [<ffffffff81789509>] system_call_fastpath+0x12/0x17 [ 524.582011] Kernel Offset: 0x0 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffff9fffffff) [ 524.582011] Rebooting in 1 seconds..libguestfs: error: appliance closed the connection unexpectedly, see earlier error messages libguestfs: child_cleanup: 0x7f8ba3c51360: child process died libguestfs: sending SIGTERM to process 4891 libguestfs: error: guestfs_launch failed, see earlier error messages libguestfs-test-tool: failed to launch appliance libguestfs: closing guestfs handle 0x7f8ba3c51360 (state 0) libguestfs: command: run: rm libguestfs: command: run: \ -rf /tmp/libguestfsEsUlSz
Fixed in: supermin-5.1.12-6.fc23.x86_64 Root cause: `supermin` was unable to load the virtio modules because they were xz compressed. (Thanks, Rich Jones.)