Hello,

I am using Archlinux current with:
- kernel 5.10.27-1-lts

When I am trying to build ubuntu 18.04 image with virt-builder I am getting the following error now (with export LIBGUESTFS_DEBUG=1 LIBGUESTFS_TRACE=1):

[   1.3] Downloading: http://builder.libguestfs.org/ubuntu-18.04.xz

libguestfs: trace: set_verbose true

libguestfs: trace: set_verbose = 0

libguestfs: create: flags = 0, handle = 0x563eb1046ad0, program = virt-builder

libguestfs: trace: get_cachedir

libguestfs: trace: get_cachedir = "/var/tmp"

[   1.8] Planning how to build this image

[   1.8] Uncompressing

[  10.4] Resizing (using virt-resize) to expand the disk to 64.0G

libguestfs: trace: set_verbose true

libguestfs: trace: set_verbose = 0

libguestfs: create: flags = 0, handle = 0x563eb1015550, program = virt-builder

libguestfs: trace: disk_create "k8smaster1.qcow2" "qcow2" 68719476736 "preallocation:metadata"

libguestfs: command: run: qemu-img

libguestfs: command: run: \ create

libguestfs: command: run: \ -f qcow2

libguestfs: command: run: \ -o preallocation=metadata

libguestfs: command: run: \ ./k8smaster1.qcow2

libguestfs: command: run: \ 68719476736

Formatting './k8smaster1.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off preallocation=metadata compression_type=zlib size=68719476736 lazy_refcounts=off refcount_bits=16

libguestfs: trace: disk_create = 0

libguestfs: trace: set_verbose true

libguestfs: trace: set_verbose = 0

libguestfs: create: flags = 0, handle = 0x558510868410, program = virt-resize

libguestfs: trace: add_drive "/var/tmp/vb99ac3c.img" "readonly:true" "format:raw" "protocol:file"

libguestfs: creating COW overlay to protect original drive content

libguestfs: trace: get_tmpdir

libguestfs: trace: get_tmpdir = "/tmp"

libguestfs: trace: disk_create "/tmp/libguestfsfW3FUV/overlay1.qcow2" "qcow2" -1 "backingfile:/var/tmp/vb99ac3c.img" "backingformat:raw"

libguestfs: command: run: qemu-img

libguestfs: command: run: \ create

libguestfs: command: run: \ -f qcow2

libguestfs: command: run: \ -o backing_file=/var/tmp/vb99ac3c.img,backing_fmt=raw

libguestfs: command: run: \ /tmp/libguestfsfW3FUV/overlay1.qcow2

Formatting '/tmp/libguestfsfW3FUV/overlay1.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=6442450944 backing_file=/var/tmp/vb99ac3c.img backing_fmt=raw lazy_refcounts=off refcount_bits=16

libguestfs: trace: disk_create = 0

libguestfs: trace: add_drive = 0

libguestfs: trace: add_drive "k8smaster1.qcow2" "readonly:false" "format:qcow2" "protocol:file" "cachemode:unsafe"

libguestfs: trace: add_drive = 0

libguestfs: trace: launch

libguestfs: trace: max_disks

libguestfs: trace: max_disks = 255

libguestfs: trace: version

libguestfs: trace: version = <struct guestfs_version = major: 1, minor: 42, release: 0, extra: , >

libguestfs: trace: get_backend

libguestfs: trace: get_backend = "direct"

libguestfs: launch: program=virt-resize

libguestfs: launch: version=1.42.0

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/libguestfsfW3FUV

libguestfs: launch: umask=0022

libguestfs: launch: euid=0

libguestfs: trace: get_cachedir

libguestfs: trace: get_cachedir = "/var/tmp"

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 /var/tmp/.guestfs-0/lock

libguestfs: command: run: \ --copy-kernel

libguestfs: command: run: \ -f ext2

libguestfs: command: run: \ --host-cpu x86_64

libguestfs: command: run: \ /usr/lib/guestfs/supermin.d

libguestfs: command: run: \ -o /var/tmp/.guestfs-0/appliance.d

supermin: version: 5.2.0

supermin: package handler: arch/pacman

supermin: acquiring lock on /var/tmp/.guestfs-0/lock

supermin: if-newer: output does not need rebuilding

libguestfs: finished building supermin appliance

libguestfs: begin testing qemu features

libguestfs: trace: get_cachedir

libguestfs: trace: get_cachedir = "/var/tmp"

libguestfs: checking for previously cached test results of /usr/bin/qemu-system-x86_64, in /var/tmp/.guestfs-0

libguestfs: loading previously cached test results

libguestfs: qemu version: 5.2

libguestfs: qemu mandatory locking: yes

libguestfs: qemu KVM: enabled

libguestfs: trace: get_backend_setting "force_tcg"

libguestfs: trace: get_backend_setting = NULL (error)

libguestfs: trace: get_sockdir

libguestfs: trace: get_sockdir = "/tmp"

libguestfs: finished testing qemu features

libguestfs: trace: get_backend_setting "gdb"

libguestfs: trace: get_backend_setting = NULL (error)

libguestfs: command: run: file

libguestfs: command: run: \ -- /var/tmp/.guestfs-0/appliance.d/root

/usr/bin/qemu-system-x86_64 \

    -global virtio-blk-pci.scsi=off \

    -no-user-config \

    -enable-fips \

    -nodefaults \

    -display none \

    -machine accel=kvm:tcg \

    -cpu host \

    -m 768 \

    -no-reboot \

    -rtc driftfix=slew \

    -no-hpet \

    -global kvm-pit.lost_tick_policy=discard \

    -kernel /var/tmp/.guestfs-0/appliance.d/kernel \

    -initrd /var/tmp/.guestfs-0/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.file.filename=/tmp/libguestfsfW3FUV/overlay1.qcow2,file.driver=qcow2,file.backing.file.locking=off,cache=unsafe,id=hd0,if=none \

    -device scsi-hd,drive=hd0 \

    -drive file=/tmp/k8smaster1.qcow2,cache=unsafe,format=qcow2,id=hd1,if=none \

    -device scsi-hd,drive=hd1 \

    -drive file=/var/tmp/.guestfs-0/appliance.d/root,snapshot=on,id=appliance,cache=unsafe,if=none,format=raw \

    -device scsi-hd,drive=appliance \

    -device virtio-serial-pci \

    -serial stdio \

    -device sga \

    -chardev socket,path=/tmp/libguestfsxcJzEf/guestfsd.sock,id=channel0 \

    -device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \

    -append "panic=1 console=ttyS0 edd=off udevtimeout=6000 udev.event-timeout=6000 no_timer_check printk.time=1 cgroup_disable=memory usbcore.nousb cryptomgr.notests tsc=reliable 8250.nr_uarts=1 root=UUID=852582a6-3f81-41e9-ffffa900-b62fa2d50325 selinux=0 guestfs_verbose=1 TERM=xterm-256color"

WARNING: Image format was not specified for '/tmp/libguestfsfW3FUV/overlay1.qcow2' and probing guessed raw.

         Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.

         Specify the 'raw' format explicitly to remove the restrictions.

libguestfs: responding to serial console Device Status Report

\x1b[1;256r\x1b[256;256H\x1b[6n

Google, Inc.

Serial Graphics Adapter 04/27/17

SGABIOS $Id$ (pbonzini@donizetti) gio 27 apr 2017, 08.36.57, UTC

Term: 80x24

4 0

SeaBIOS (version ArchLinux 1.14.0-1)

Booting from ROM...

\x1b[2J[    0.094817] usbserial: usb_serial_init - registering generic driver failed

[    0.095591] usbserial: usb_serial_init - returning with error -19

supermin: mounting /proc

supermin: ext2 mini initrd starting up: 5.2.0 glibc

supermin: cmdline: panic=1 console=ttyS0 edd=off udevtimeout=6000 udev.event-timeout=6000 no_timer_check printk.time=1 cgroup_disable=memory usbcore.nousb cryptomgr.notests tsc=reliable 8250.nr_uarts=1 root=UUID=852582a6-3f81-41e9-ffffa900-b62fa2d50325 selinux=0 guestfs_verbose=1 TERM=xterm-256color

supermin: uptime: 0.15 0.02

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_generic.ko

supermin: internal insmod crc32c_generic.ko

supermin: internal insmod nfit.ko

supermin: internal insmod ata_piix.ko

^H^H^Hsupermin: internal insmod virtio_blk.ko

supermin: internal insmod rng-core.ko

supermin: internal insmod virtio-rng.ko

supermin: internal insmod virtio_console.ko

supermin: internal insmod crypto_engine.ko

supermin: internal insmod virtio_crypto.ko

supermin: internal insmod failover.ko

supermin: internal insmod net_failover.ko

supermin: internal insmod virtio_net.ko

supermin: internal insmod nd_btt.ko

supermin: internal insmod nd_pmem.ko

supermin: internal insmod nd_virtio.ko

supermin: internal insmod virtio_pmem.ko

supermin: internal insmod rpmsg_core.ko

supermin: internal insmod virtio_rpmsg_bus.ko

supermin: internal insmod virtio_scsi.ko

supermin: internal insmod virtio_balloon.ko

supermin: internal insmod virtio_dma_buf.ko

supermin: internal insmod virtio_input.ko

supermin: internal insmod virtio_mem.ko

supermin: internal insmod virtio_mmio.ko

supermin: internal insmod virtio_pci.ko

supermin: internal insmod vdpa.ko

supermin: internal insmod virtio_vdpa.ko

supermin: internal insmod jbd2.ko

supermin: internal insmod mbcache.ko

supermin: internal insmod crc16.ko

supermin: internal insmod ext4.ko

supermin: internal insmod fuse.ko

supermin: internal insmod virtiofs.ko

supermin: internal insmod crc-itu-t.ko

supermin: internal insmod crc4.ko

supermin: internal insmod crc64.ko

supermin: internal insmod crc7.ko

supermin: internal insmod crc8.ko

supermin: internal insmod libcrc32c.ko

supermin: root UUID is longer than 16 bytes

[    0.555625] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000100

[    0.556423] CPU: 0 PID: 1 Comm: init Not tainted 5.10.27-1-lts #1

[    0.557065] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ArchLinux 1.14.0-1 04/01/2014

[    0.558070] Call Trace:

[    0.558339]  dump_stack+0x6b/0x83

[    0.558694]  panic+0x10b/0x2e1

[    0.559023]  do_exit.cold+0x57/0xb3

[    0.559396]  ? vfs_write+0x153/0x280

[    0.559781]  do_group_exit+0x33/0xa0

[    0.560165]  __x64_sys_exit_group+0x14/0x20

[    0.560608]  do_syscall_64+0x33/0x40

[    0.560988]  entry_SYSCALL_64_after_hwframe+0x44/0xa9

[    0.561520] RIP: 0033:0x441221

[    0.561845] Code: c0 ff ff ff be e7 00 00 00 ba 3c 00 00 00 eb 16 66 0f 1f 84 00 00 00 00 00 89 d0 0f 05 48 3d 00 f0 ff ff 77 1c f4 89 f0 0f 05 <48> 3d 00 f0 ff ff 76 e7 f7 d8 64 41 89 00 eb df 0f 1f 80 00 00 00

[    0.563775] RSP: 002b:00007ffd98dcca78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7

[    0.564576] RAX: ffffffffffffffda RBX: 00000000004b3230 RCX: 0000000000441221

[    0.565319] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001

[    0.566053] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 0000000000000000

[    0.566785] R10: 0000000000441fb7 R11: 0000000000000246 R12: 00000000004b3230

[    0.567547] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001

[    0.568320] Kernel Offset: 0xec00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)

[    0.569419] Rebooting in 1 seconds..

libguestfs: child_cleanup: 0x558510868410: child process died

libguestfs: sending SIGTERM to process 11801

libguestfs: qemu maxrss 175888K

libguestfs: trace: launch = -1 (error)

virt-resize: error: libguestfs error: guestfs_launch failed, see earlier

error messages

If reporting bugs, run virt-resize with debugging enabled and include the

complete output:

  virt-resize -v -x [...]

libguestfs: trace: close

libguestfs: closing guestfs handle 0x558510868410 (state 0)

libguestfs: command: run: rm

libguestfs: command: run: \ -rf /tmp/libguestfsfW3FUV

libguestfs: command: run: rm

libguestfs: command: run: \ -rf /tmp/libguestfsxcJzEf

libguestfs: trace: close

libguestfs: closing guestfs handle 0x563eb1015550 (state 0)

libguestfs: trace: close

libguestfs: closing guestfs handle 0x563eb1046ad0 (state 0)

Let me know what you think