fix: use enable-patchelf to fix libvirt_iohelper missing shared libra…#180
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hemanthnakkina merged 1 commit intoApr 29, 2026
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…ries libvirt_iohelper is spawned by virFileWrapperFdNew() with a minimal environment containing only LIBVIRT_LOG_OUTPUTS=1:stderr. The parent libvirtd's LD_LIBRARY_PATH is never propagated to the child, so staged shared libraries (libxml2, libyajl, libicuuc, etc.) in usr/lib/x86_64-linux-gnu/ are not found, causing server suspend to fail: operation failed: .../libvirt_iohelper: error while loading shared libraries: libxml2.so.2: cannot open shared object file: No such file or directory Fix by adding build-attributes: [enable-patchelf] to the libvirt part. Snapcraft sets RPATH (old DT_RPATH tag, not RUNPATH) with $ORIGIN on libvirt-built ELF files, enabling the dynamic linker to locate staged libraries transitively — without requiring a build-time patchelf script. Tested: suspend, resume, pause, unpause, snapshot, shelve, unshelve, resize, cold migrate, live-migrate all pass. Fixes: https://bugs.launchpad.net/snap-openstack/+bug/2150555 Assisted-by: Claude:claude-4.6-sonnet Signed-off-by: Hemanth Nakkina <hemanth.nakkina@canonical.com>
gboutry
approved these changes
Apr 29, 2026
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…ries
libvirt_iohelper is spawned by virFileWrapperFdNew() with a minimal environment containing only LIBVIRT_LOG_OUTPUTS=1:stderr. The parent libvirtd's LD_LIBRARY_PATH is never propagated to the child, so staged shared libraries (libxml2, libyajl, libicuuc, etc.) in usr/lib/x86_64-linux-gnu/ are not found, causing server suspend to fail:
operation failed: .../libvirt_iohelper: error while loading shared
libraries: libxml2.so.2: cannot open shared object file: No such
file or directory
Fix by adding build-attributes: [enable-patchelf] to the libvirt part. Snapcraft sets RPATH (old DT_RPATH tag, not RUNPATH) with $ORIGIN on libvirt-built ELF files, enabling the dynamic linker to locate staged libraries transitively — without requiring a build-time patchelf script.
Fixes: https://bugs.launchpad.net/snap-openstack/+bug/2150555
Assisted-by: Claude:claude-4.6-sonnet