Package: libguestfs-tools Version: 1:1.40.2-7+b1 Severity: important Hi,
running guestfish on arm64 fails. See for example the result of my genext2fs autopkgtest on arm64: https://ci.debian.net/data/autopkgtest/testing/arm64/g/genext2fs/5128192/log.gz I was able to reproduce the problem on the arm64 porterbox and re-ran guestfish with LIBGUESTFS_DEBUG=1 LIBGUESTFS_TRACE=1. Probably relevant output: /usr/bin/qemu-system-aarch64 \ -global virtio-blk-pci.scsi=off \ -no-user-config \ -enable-fips \ -nodefaults \ -display none \ -machine virt,gic-version=host,accel=kvm:tcg \ -cpu host \ -m 1024 \ -no-reboot \ -rtc driftfix=slew \ -kernel /var/tmp/.guestfs-3341/appliance.d/kernel \ -initrd /var/tmp/.guestfs-3341/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/libguestfs6x5WRv/overlay1.qcow2,file.driver=qcow2,file.backing.file.locking=off,cache=unsafe,id=hd0,if=none \ -device scsi-hd,drive=hd0 \ -drive file=/var/tmp/.guestfs-3341/appliance.d/root,snapshot=on,id=appliance,cache=unsafe,if=none,format=raw \ -device scsi-hd,drive=appliance \ -device virtio-serial-pci \ -serial stdio \ -chardev socket,path=/tmp/libguestfs6AGQyv/guestfsd.sock,id=channel0 \ -device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \ -append "panic=1 console=ttyAMA0 earlyprintk=pl011,,0x9000000 ignore_loglevel efi-rtc=noprobe 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=/dev/sdb selinux=0 guestfs_verbose=1 TERM=linux" WARNING: Image format was not specified for '/tmp/libguestfs6x5WRv/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. Could not access KVM kernel module: No such file or directory qemu-system-aarch64: failed to initialize KVM: No such file or directory qemu-system-aarch64: Back to tcg accelerator qemu-system-aarch64: gic-version=host requires KVM According to this output, the problem seems to be, that guestfish calls qemu with -machine virt,gic-version=host,accel=kvm:tcg but without kvm, the gic-version=host argument seems to be invalid. This seems to be the relevant part in the source code: https://sources.debian.org/src/libguestfs/1:1.40.2-7/lib/launch-direct.c/?hl=509#L509 Accordingly, the problem vanishes if I run guestfish with LIBGUESTFS_BACKEND_SETTINGS=force_tcg. Thanks! cheers, josch
