control: tag - 1 + patch Hi,
On 2025-08-26 11:18, Graham Inggs wrote: > Source: guestfs-tools > Version: 1.52.3-1 > Severity: serious > Tags: ftbfs > X-Debbugs-Cc: [email protected] > > Hi Maintainer > > Since the recent binNMU for libxml2, guestfs-tools FTBFS on riscv64 > [1], where it built previously. > > I think this is the only test failure: > > FAIL test-virt-alignment-scan-guests.sh (exit status: 1) I initially got difficulties to reproduce the issue locally, but I have finally been able to reproduce the issue on ricci.d.o, the riscv64 porterbox. It is reproducible most of the time (8/10) in a sid chroot, but more rarely (1/10) in a trixie chroot. It appeared to be a timing issue, i.e. things are running a tiny bit slower in sid than in trixie (presumably due to new version of packages, either QEMU or things running inside the VM), causing the failure to happen way more often. Looking at it more in details it appears that the testsuite launches 12 qemu-system processes in parallel, which make things quite slow. It makes sense when KVM acceleration is available (the test is probably IO bound), but not with TCG as used on the build daemons (the test is definitely CPU bound). test-virt-df-guests.sh is also affected by the same issue. Therefore I came up with the following patch to limit the number of VMs to the number of CPUs: --- guestfs-tools-1.52.3.orig/align/test-virt-alignment-scan-guests.sh +++ guestfs-tools-1.52.3/align/test-virt-alignment-scan-guests.sh @@ -21,7 +21,7 @@ skip_if_skipped libvirt_uri="test://$abs_top_builddir/test-data/phony-guests/guests-all-good.xml" -$VG virt-alignment-scan -c "$libvirt_uri" +$VG virt-alignment-scan -P$(nproc) -c "$libvirt_uri" r=$? # 0, 2 and 3 are reasonable non-error exit codes. Others are errors. --- guestfs-tools-1.52.3.orig/df/test-virt-df-guests.sh +++ guestfs-tools-1.52.3/df/test-virt-df-guests.sh @@ -25,4 +25,4 @@ skip_if_skipped libvirt_uri="test://$abs_top_builddir/test-data/phony-guests/guests.xml" -$VG virt-df -c "$libvirt_uri" +$VG virt-df -P $(nproc) -c "$libvirt_uri" In addition to fixing the issue, it also makes the tests around 70% faster on a system where the tests were already passing. Regards Aurelien -- Aurelien Jarno GPG: 4096R/1DDD8C9B [email protected] http://aurel32.net
