Four short stories about preempt_count()

Posted Sep 25, 2020 13:01 UTC (Fri) by flussence (guest, #85566)
Parent article: Four short stories about preempt_count()

I do wish 32-bit systems with a quantity of memory appropriate for running Windows XP through 7 weren't considered a weird niche that requires highmem voodoo until the end of time. Is that really the best option?

Four short stories about preempt_count()

Posted Oct 7, 2020 16:26 UTC (Wed) by zlynx (guest, #2285) [Link]

As I remember things from the Old Days, Linux is limited to about 1 GB of RAM in 32 bit modes. Unless you use that voodoo.

I remember needing to do kernel rebuilds or picking the correct Redhat kernels to get 3 GB userspace.

Four short stories about preempt_count()

Posted Oct 11, 2020 15:34 UTC (Sun) by mcortese (guest, #52099) [Link] (1 responses)

32-bit systems suitable for old Windows versions are also suitable for old Linux versions. Newer Linux versions may well assume they are a weird niche.

Four short stories about preempt_count()

Posted Oct 14, 2020 9:49 UTC (Wed) by flussence (guest, #85566) [Link]

The problem is those old versions did too. Memory between 896MB-4GB has always been a kludge under x86 Linux.