qemu boot failures x86 tcg

[nickdesaulniers]

example:
https://github.com/ClangBuiltLinux/continuous-integration2/actions/runs/5639569398/job/15275699620#step:6:460
(Though I don't see the <66> in the splat that we previously saw...

@arndb mentioned that https://lore.kernel.org/qemu-devel/[email protected]/ was the proposed fix.

[nathanchance]

I think this issue might be better suited for continuous-integration2, as I am not really sure there is anything for boot-utils to do here (and even then, there is not much for us to do in continuous-integration2 either...). I have just been rerunning the failed jobs to see if it is that TCG bug or not because it never shows up on the rerun.

[nathanchance]

That series appears to be merged into QEMU master:

https://gitlab.com/qemu-project/qemu/-/commit/cb62bd15e14e304617d250158b77d0deb032f032
https://gitlab.com/qemu-project/qemu/-/commit/deba78709ae8ce103e2248413857747f804cd1ef

As far as I understand it, QEMU has a stable release process similar to Linux but:

• I don't think the stable releases are guaranteed
• I see other accel/tcg patches in the history between those two commits so the backports may not be as simple as just those two patches (although I have not actually verified)
• It is close to the 8.1.0 release (their wiki states it should be released on either August 15th or 22nd)

As a result, I do not think there is much else for us to do here?