Re: Disabled LTO on qemu

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On Thu, 2020-07-30 at 11:06 +0100, Richard W.M. Jones wrote:
> I just disabled LTO for qemu.
> 
> It caused what are best described as "weird" assert failures
> in the test suite.
> 
> For comparison here's a good build (without LTO):
> https://koji.fedoraproject.org/koji/taskinfo?taskID=48188577
> 
> And here's a bad build (with LTO):
> https://koji.fedoraproject.org/koji/taskinfo?taskID=48182910
> 
> At some point we'll need to look at what's going on, but right now
> disabling LTO was the easiest way to work around what might be
> toolchain bugs.
Agreed 100%.  qemu was one of the dozen or so things left on my "to review" list
that I couldn't get to with the binutils panic Fri/Sat.  I suspect there's an asm
gone awry, but we won't know for sure until we dig deeply into it.

Jeff
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