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Bug 1205236
| Summary: | kernel FTBFS on ppc64le | |||
|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Jakub Čajka <jcajka> | |
| Component: | gcc | Assignee: | Jakub Jelinek <jakub> | |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | |
| Severity: | unspecified | Docs Contact: | ||
| Priority: | unspecified | |||
| Version: | 22 | CC: | dan, davejohansen, gansalmon, itamar, jakub, jonathan, kernel-maint, law, madhu.chinakonda, mchehab, menantea, mpolacek, pbrobinson | |
| Target Milestone: | --- | |||
| Target Release: | --- | |||
| Hardware: | ppc64le | |||
| OS: | Linux | |||
| Whiteboard: | ||||
| Fixed In Version: | gcc-5.0.1-0.1.fc22 | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 1237363 (view as bug list) | Environment: | ||
| Last Closed: | 2015-04-21 18:40:13 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: | ||||
| Bug Depends On: | ||||
| Bug Blocks: | 1051573, 1206039, 1206040, 1237363 | |||
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Description
Jakub Čajka
2015-03-24 13:45:09 UTC
both the failed and successful builds used binutils-2.25-5.fc22.ppc64le Is that reproducible? Can you try compiling just the arch/powerpc/kernel/vdso32/gettimeofday.S file? The problem is that powerpc64le is not a multilib target, we don't really support -m32 on ppc64le. So, it is a kernel bug (or kernel configuration bug) to attempt to compile 32-bit ppc64le code with it. Only ppc64 big endian supports multilib (though in Fedora in a very limited way, as no 32-bit packages are built these days). Also you can have a look to https://bugs.launchpad.net/ubuntu/trusty/+source/linux/+bug/1433809 to find a bypass So not only kernel is affected by the gcc change, but also grub2 (http://ppc.koji.fedoraproject.org/koji/taskinfo?taskID=2449339). And we will need some solution ... Jakub, seems that without the 32-bit support on LE we are stuck :-( Can you add it back in the next gcc build? We have no mean to workaround the problems for F-22, not sure about F-23. As fixing the kernel will take time and the grub2 situation is completely unclear, I propose to add the necessary options from https://bugs.launchpad.net/ubuntu/trusty/+source/linux/+bug/1433809/comments/2 to our gcc5 Could we enable just the 32 bit code generator without the multilibs? Would that address the problem? (In reply to Jeff Law from comment #8) > Could we enable just the 32 bit code generator without the multilibs? Would > that address the problem? Yes, I believe so, we don't need multilib. the options recommended by Alan Modra are --enable-targets=powerpcle-linux --disable-multilib kernel now builds again (http://ppc.koji.fedoraproject.org/koji/buildinfo?buildID=302160) gcc-5.0.1-0.1.fc22 has been submitted as an update for Fedora 22. https://admin.fedoraproject.org/updates/gcc-5.0.1-0.1.fc22 gcc-5.0.1-0.1.fc22, libtool-2.4.2-33.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report. |