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Bug 1625825
| Summary: | L1TF and i686 PAE kernel builds | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Matt Fagnani <matt.fagnani> |
| Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> |
| Status: | CLOSED WONTFIX | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 28 | CC: | airlied, bskeggs, ewk, hdegoede, ichavero, itamar, jarodwilson, jglisse, john.j5live, jonathan, josef, kernel-maint, labbott, linville, mchehab, mjg59, steved |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2018-09-06 14:41:58 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: | 1489998 | ||
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Description
Matt Fagnani
2018-09-06 04:25:25 UTC
We intentionally dropped PAE support because there just wasn't demand for it. I don't think there is any interest in bringing it back. You are welcome to discuss this with the x86 SIG (https://fedoraproject.org/wiki/Architectures/x86) I didn't know why the kernel-PAE packages were removed in F28 until I read your message. I used the kernel-PAE packages from F24 to F27. When I upgraded to F28 in early May, I was surprised to find that no F28 kernel packages had been installed. I ran sudo dnf install kernel* from VT2 after that happened which resolved the problem. If F28 kernel packages obsoleted the kernel-PAE packages, the problems above might've been avoided. In the current F28 kernel.spec I see Obsoletes: kernel-PAE-debug but not Obsoletes: kernel-PAE https://src.fedoraproject.org/rpms/kernel/blob/f28/f/kernel.spec I'm not sure if or how that would be need to be specified for i686 alone. The issue above was reported by at least four others. https://lists.fedoraproject.org/archives/list/users@lists.fedoraproject.org/thread/N6YZEA7JBYMIDZL4OB7XTYI74WIUXZDZ/ https://ask.fedoraproject.org/en/question/124527/system-upgrade-27-28-dosent-install-kernel-in-grub/ https://ask.fedoraproject.org/en/question/122127/kernal-update-problem/ https://starlightcascade.ca/blog/2018/05/more-linux-fedora-28-upgrades/ I read the F29 i686 packages are being compiled with SSE2 support https://fedoraproject.org/wiki/Changes/Update_i686_architectural_baseline_to_include_SSE2 I don't know what proportion of CPUs with SSE2 support also have PAE support, but since PAE was introduced in 1995 and SSE2 in 2000, I'm guessing that proportion would be high. Since the L1TF vulnerabilities were made public after the removal of i686 PAE builds from F28, the x86 SIG may wish to reexamine the issue. Would posting issues like this on the x86 mailing list be an appropriate way to discuss this? I've been trying learn more about kernel, network, security, and other related topics in the last two years, and Fedora has helped me a lot in this way. Thanks to you and the other Fedora maintainers and developers. |