[TECH TOPIC] Reaching consensus on CONFIG_HIGHMEM phaseout
René Herman
rene.herman at gmail.com
Thu Sep 11 07:56:11 AEST 2025
> In the past I saw that programs such as the Java Runtime (JRE) ran
> into address space limitations due to a 2G/2G split on embedded
> systems. Reverting to a 3G/1G split fixed the problems.
Believe you guys are talking specifically ARM so FWIW, but I remember
for x86 that at least initially Wine and things such as VMware were
affected by the more creative PAGE_OFFSET choices.
Both will have been as a matter of plain bugs and are supposedly long
fixed (and I in fact believe I recall such fixing for VMware). Never had
or as far as I recall heard of other issues back then.
Rene.
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