Bug 810559
| Summary: | FTBFS: libvirt has parallel make race that can stop build | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Eric Blake <eblake> |
| Component: | libvirt | Assignee: | Eric Blake <eblake> |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 6.3 | CC: | acathrow, ajia, dyasny, dyuan, mzhan, rwu, veillard, ydu |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | libvirt-0.9.10-11.el6 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-06-20 06:52:51 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
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Description
Eric Blake
2012-04-06 17:33:24 UTC
ACK this make rebuilds of the rpm fail randomly and happened a couple of time in brew already, very painful ! Daniel (In reply to comment #0) > How reproducible: > 50% or so - depends on the race condition Eric, I want to know how to easily reproduce this issues? I tried to run many make jobs to increase race condition such as ./configure && make -j20, but everything is okay on libvirt-0.9.10-10 source rpm package, maybe I can easy to reproduce it on some low profile machine, if so, I will change kernel cmdline to limit host cpu/memory resources, or I may increase cpu or memory stress on the host something like that? Thanks, Alex I was hitting the problem about 50% of my time when doing './autobuild.sh' on my dual-core laptop, which invokes 'make -j2', with no special load or kernel tweaking. I have no idea how to force the race. It might be possible to inspect 'make --debug' output with appropriate make targets to see if the dependency chains are correct, but even then, I'm not sure what specifically to look for; maybe you can figure out how to have make tell you what the prerequisites of hvsupport.html and hvsupport.html.in are, then compare those lists pre- and post-patch to see that hvsupport.html has added more dependencies. (In reply to comment #6) > I was hitting the problem about 50% of my time when doing './autobuild.sh' on > my dual-core laptop, which invokes 'make -j2', with no special load or kernel > tweaking. I have no idea how to force the race. It might be possible to > inspect 'make --debug' output with appropriate make targets to see if the > dependency chains are correct, but even then, I'm not sure what specifically to > look for; maybe you can figure out how to have make tell you what the > prerequisites of hvsupport.html and hvsupport.html.in are, then compare those > lists pre- and post-patch to see that hvsupport.html has added more > dependencies. I see, thanks for your nice comment, I will try to reproduce it again according to your advice, thanks a lot. (In reply to comment #6) > I was hitting the problem about 50% of my time when doing './autobuild.sh' on > my dual-core laptop, which invokes 'make -j2', with no special load or kernel I can also reproduce the issues on my dual-core laptop with libvirt-0.9.10-10.el6.src.rpm by run ./autobuild && make -j2: Validating hvsupport.html warning: failed to load external entity "hvsupport.html.tmp" make[2]: *** [hvsupport.html] Error 1 And I can't reproduce it with libvirt-0.9.10-11.el6.src.rpm on the same test environment, so the bug has been verified. 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, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHSA-2012-0748.html |