Pierre Neidhardt <mail@ambrevar.xyz> writes:

> So I never got around reproducing the issue with Gentoo, and soon after
> I dropped Gentoo and moved to Guix, with which I've never been able to
> re-experience this issue, even on massive Eshell buffers (couple of 10M...).
>
> As far as I'm concerned, this could be closed, but maybe another Gentoo
> user out there would be able to tell us more.

Oh yeah, I still have a possible fix sitting in my local repo.
Attaching here for posterity, but I wouldn't want to apply it unless we
actually know that it would help (because it might break legitimate
matches).