[LU-16095] lbuild: sles build should not require kernel-default-devel installed

• Type: Bug
• Resolution: Unresolved
• Priority: Major
• Severity: 3
• Assignee: Minh Diep
• Reporter: Minh Diep

Description

/lib/modules/<version>/build is symlinked to /usr/src/<version>, and since lbuild extracts the rpm to put in 'reused' directory, it has to take care of the symlink too to prevent requiring the rpm to be installed. Otherwise we see some errors like this

error: cannot determine ksym provides of /tmp/rpmbuild-lustre-jenkins-LkKoPYLF/BUILDROOT/lustre-2.15.51_9_g8ab411e-1.x86_64/lib/modules/4.12.14-122.116-default/updates/lustre-client-tests/fs/llog_test.ko - missing ksym-povides tool.

Issue Links

• is related to: LU-16093 kernel update [SLES12 SP5 4.12.14-122.130.1]

Comments

[Jian Yu]

In https://review.whamcloud.com/48974, SLES15 SP3 client build failed:

lbuild: Could not find the Linux tree in /data/lbuild-data/kernelrpm/5.3/sles15/x86_64/kernel-default-devel-5.3.18-150300.59.98.1.x86_64.rpm

[Minh Diep]

self note:

++ readlink /lib/modules/4.12.14-122.116-default/build
+ objdir=
++ readlink /tmp/rpmbuild-lustre-jenkins-vfmwHzbm/BUILDROOT/lustre-2.15.51_1_g2e4ba32-1.x86_64/lib/modules/4.12.14-122.116-default/build
+ objdir_build=/tmp/rpmbuild-lustre-jenkins-vfmwHzbm/BUILDROOT/lustre-2.15.51_1_g2e4ba32-1.x86_64
+ for i in '$objdir_build' '$objdir'
+ ksym_provides=/tmp/rpmbuild-lustre-jenkins-vfmwHzbm/BUILDROOT/lustre-2.15.51_1_g2e4ba32-1.x86_64/scripts/mod/ksym-provides
+ '[' -x /tmp/rpmbuild-lustre-jenkins-vfmwHzbm/BUILDROOT/lustre-2.15.51_1_g2e4ba32-1.x86_64/scripts/mod/ksym-provides ']'
+ '[' -x /tmp/rpmbuild-lustre-jenkins-vfmwHzbm/BUILDROOT/lustre-2.15.51_1_g2e4ba32-1.x86_64/scripts/mod/ksym-provides ']'

/usr/lib/rpm/find-provides.ksyms actually looks for installed /lib/modules/4.12.14-122.116-default/build first then BUILDROOT/lustre.../scripts/mod to find ksym-provides. but we don't have that in lustre!?

here is the snippet

    objdir=$(readlink /lib/modules/$version/build)
    objdir_build=$RPM_BUILD_ROOT$(readlink $RPM_BUILD_ROOT/lib/modules/$version/build)
    for i in $objdir_build $objdir ; do
            ksym_provides=$i/scripts/mod/ksym-provides
            [ -x $ksym_provides ] && break
    done
    if [ -x $ksym_provides ] ; then
            $ksym_provides $flavor $f
    else
            major=${version%%.*}
            sub=${version#*.}
            sub=${sub%%.*}
            if [ "$major" -ge 4 -a "$sub" -ge 10 ] ; then
                    echo "error: cannot determine ksym provides of $f - missing ksym-povides tool." >&2
            else
                    nm "$f" \
                            | sed -r -ne "s/^0*([0-9a-f]+) A __crc_(.+)/ksym($flavor:\\2) = \\1/p"
            fi
    fi

[Gerrit Updater]

"Minh Diep <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/48221
Subject: LU-16095 build: fix lbuild not depending on installed kernel-devel
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 2e4ba32467358af5a5498e49e64b66126d74b6c9