Red Hat Bugzilla – Bug 485970
Installed libperl.so is used during build self-test
Last modified: 2009-12-18 02:56:43 EST
Description of problem:
In the course of building the binary Perl RPMs, a series of self-tests are done. These tests should be using the newly-built libperl.so exclusively (that is the point of the tests, right?). Instead the installed copy of the library is sometimes used during the test run.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. do "lsof | libperl" to verify that the installed library is not in use
2. build the binary RPM (e.g. "rpmbuild --rebuild perl-5.10.0-53.fc10.src.rpm")
3. while the self-test is running do "lsof | libperl" again. you may see the installed lib in use
The installed version of the Perl shared library is used during the self-test of the version being built.
During the self-tests the newly-built (not the installed) copy of the shared library should be used.
I've seen this for many version, but I've just worked up the ambition to write it up now.
Here's another way to see that the installed Perl is used during the self test. Build a set of Perl RPMs with PGO enabled, then install the packages. As the binaries are used profiling data is written to the filesystem. Now build another set of Perl RPMs. During the self test of the 2nd set the installed lib will again have it's profiling data written to disk. This can be considered proof that the self-tests are not always testing the code just compiled.
Or maybe the installed libperl.so can be temporarily be replaced with a lib that just causes a segfault, or something else dramatic. That too would prove that it is not just the library under test that is being used.
The binaries which are shipped are checked with at-the-time built libperl.so because of building in mock. So the tests should be really checking regressions in actual package.
Shouldn't this be fixed in cleaning paths in rawhide? Stepan?
(In reply to comment #1)
> The binaries which are shipped are checked with at-the-time built libperl.so
> because of building in mock.
This argument is not valid, because perl is always installed in the mock root.
Package rpm-build requires /usr/bin/perl, because several of the automated dependency generators are written in perl. Until these are rewritten, perl will always be dragged to the build tree.
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