Your message dated Mon, 11 Aug 2025 11:26:17 +0300
with message-id <[email protected]>
and subject line Re: Bug#888182: qemu-system-arm: qemu-system-arm crashes when
run as part of the nbdkit testsuite
has caused the Debian Bug report #888182,
regarding qemu-system-arm: qemu-system-arm crashes when run as part of the
nbdkit testsuite
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
888182: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=888182
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: qemu-system-arm
Version: 1:2.11+dfsg-1
Severity: grave
Dear Maintainer,
I just got an nbdkit build failure from the armhf autobuilders. The
test-suite uses libguestfs and spawns qemu-system-arm which is killed by
SIGSEGV. Please see
https://buildd.debian.org/status/fetch.php?pkg=nbdkit&arch=armhf&ver=1.1.28-1&stamp=1516723989&raw=0
for the build log.
I re-ran the check in an armhf porterbox chroot (abel) and got the
output below. I don't see any useful output after starting
qemu-system-arm, but at least the command line parameters are visible.
,----
| $ LIBGUESTFS_TRACE=1 LIBGUESTFS_DEBUG=1 make check
| [...]
| guestfish -N fs -m /dev/sda1 write /hello.txt "hello,world"
| libguestfs: trace: set_verbose true
| libguestfs: trace: set_verbose = 0
| libguestfs: create: flags = 0, handle = 0x10e8ee8, program = guestfish
| libguestfs: trace: disk_create "test1.img" "raw" 104857600
"preallocation:sparse"
| libguestfs: trace: disk_create = 0
| libguestfs: trace: set_pgroup true
| libguestfs: trace: set_pgroup = 0
| libguestfs: trace: add_drive "test1.img" "format:raw"
| libguestfs: trace: add_drive = 0
| libguestfs: trace: is_config
| libguestfs: trace: is_config = 1
| libguestfs: trace: launch
| libguestfs: trace: get_tmpdir
| libguestfs: trace: get_tmpdir = "/tmp"
| libguestfs: trace: version
| libguestfs: trace: version = <struct guestfs_version = major: 1, minor: 36,
release: 11, extra: , >
| libguestfs: trace: get_backend
| libguestfs: trace: get_backend = "direct"
| libguestfs: launch: program=guestfish
| libguestfs: launch: version=1.36.11
| 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/libguestfsZiGbYj
| libguestfs: launch: umask=0022
| libguestfs: launch: euid=2596
| libguestfs: is_openable: /dev/kvm: No such file or directory
| libguestfs: trace: get_backend_setting "force_tcg"
| libguestfs: trace: get_backend_setting = NULL (error)
| 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-2596/lock
| libguestfs: command: run: \ --copy-kernel
| libguestfs: command: run: \ -f ext2
| libguestfs: command: run: \ --host-cpu arm
| libguestfs: command: run: \ /usr/lib/arm-linux-gnueabihf/guestfs/supermin.d
| libguestfs: command: run: \ -o /var/tmp/.guestfs-2596/appliance.d
| supermin: version: 5.1.19
| supermin: package handler: debian/dpkg
| supermin: acquiring lock on /var/tmp/.guestfs-2596/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-
| arm, in /var/tmp/.guestfs-2596
| libguestfs: loading previously cached test results
| libguestfs: QMP parse error: parse error: premature EOF\n
\n (right here) ------^\n (ignored)
| libguestfs: qemu version: 2.11
| libguestfs: qemu mandatory locking: yes
| 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: dmesg | grep -Eoh 'lpj=[[:digit:]]+'
| dmesg: read kernel buffer failed: Operation not permitted
| libguestfs: read_lpj_from_dmesg: external command exited with error status 1
| libguestfs: read_lpj_from_files: no boot messages files are readable
| [00050ms] /usr/bin/qemu-system-arm \
| -global virtio-blk-device.scsi=off \
| -enable-fips \
| -nodefaults \
| -display none \
| -machine virt,accel=kvm:tcg \
| -m 500 \
| -no-reboot \
| -rtc driftfix=slew \
| -kernel /var/tmp/.guestfs-2596/appliance.d/kernel \
| -initrd /var/tmp/.guestfs-2596/appliance.d/initrd \
| -object rng-random,filename=/dev/urandom,id=rng0 \
| -device virtio-rng-pci,rng=rng0 \
| -device virtio-scsi-device,id=scsi \
| -drive
file=/home/bengen/nbdkit-1.1.28/tests/test1.img,cache=writeback,format=raw,id=hd0,if=none
\
| -device scsi-hd,drive=hd0 \
| -drive
file=/var/tmp/.guestfs-2596/appliance.d/root,snapshot=on,id=appliance,cache=unsafe,if=none,format=raw
\
| -device scsi-hd,drive=appliance \
| -device virtio-serial-device \
| -serial stdio \
| -chardev socket,path=/tmp/libguestfscc24gw/guestfsd.sock,id=channel0 \
| -device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \
| -append 'panic=1 mem=500M console=ttyAMA0 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=screen'
| Could not access KVM kernel module: No such file or directory
| qemu-system-arm: failed to initialize KVM: No such file or directory
| qemu-system-arm: Back to tcg accelerator
| libguestfs: error: appliance closed the connection unexpectedly, see earlier
error messages
| libguestfs: child_cleanup: 0x10e8ee8: child process died
| libguestfs: sending SIGTERM to process 14693
| libguestfs: error: /usr/bin/qemu-system-arm killed by signal 11 (Segmentation
fault), see debug messages above
| libguestfs: error: guestfs_launch failed, see earlier error messages
| libguestfs: trace: launch = -1 (error)
| libguestfs: trace: close
| libguestfs: closing guestfs handle 0x10e8ee8 (state 0)
| libguestfs: command: run: rm
| libguestfs: command: run: \ -rf /tmp/libguestfsZiGbYj
| libguestfs: command: run: rm
| libguestfs: command: run: \ -rf /tmp/libguestfscc24gw
| Makefile:2396: recipe for target 'disk' failed
| make[2]: *** [disk] Error 1
| [...]
`----
Please let me know what I can do to provide further debugging help.
Cheers,
-Hilko
--- End Message ---
--- Begin Message ---
Version: 1:7.2+dfsg-1
A *lot* has changed in qemu since version 2.11.
In particular, numerous testing/CI is being done in qemu-emulated
virtual machines everywhere. So it looks like this issue has been
fixed long time ago. At the very least, I can't reproduce this
crash anymore with bookworm versions of qemu and nbdkit (but I
didn't try hard).
Let's close this bug report with bookworm version of qemu.
Feel free to reopen it if you think it is incorrect.
Thanks,
/mjt
--- End Message ---
