Note: This bug is displayed in read-only format because
the product is no longer active in Red Hat Bugzilla.
RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Please backport the fix from Fedora BZ 1775790:
For kernel builds, /usr/lib/rpm/kmod.prov is fork+execed by rpmbuild in "Processing files:" step about 8000 times, single-threaded, with cumulative run time of ~2 minutes.
Ideally rpmbuild should be changed to parallelize this, but it's not trivial to implement.
The fix in Fedora, meanwhile, speeds up the script, by avoiding additional fork+execing. The new kmod.prov is:
#!/bin/sh +x
# Kernel build can have many thousands of modules.
# kmod.prov is run for every one of them.
# Try to make this script run as fast as we can.
# For example, use shell string ops instead of external programs
# where possible.
IFS=$'\n'
read -r fname || exit
# Only process files from .../lib/modules/... subtree
[ "${fname#*/lib/modules/*}" != "$fname" ] || exit 0
kmod=${fname##*/} # like basename, but faster
if [ "$kmod" = "modules.builtin" ]; then
for j in $(cat -- "$fname"); do
echo "kmod(${j##*/})"
done
exit 0
fi
kmod=${kmod%.gz}
kmod=${kmod%.xz}
if [ "${kmod%.ko}" != "$kmod" ]; then
echo "kmod($kmod)"
fi
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (redhat-rpm-config bug fix and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHEA-2020:4825