quoted

I am seeing userland corruption and application crashes on multiple 
32-bit machines with 4.19-rc1+git. The machines vary: PII, PIII, P4. 
They are all Intel. AMD Duron/Athlon/AthlonMP have been fine in my tests 
so far (may be configuration dependent).

Thanks for the report! I'll try to reproduce the problem tomorrow and
investigate it. Can you please check if any of the kernel configurations
that show the bug has CONFIG_X86_PAE set? If not, can you please test
if enabling this option still triggers the problem?

PAE was not visible itself, but when I changed HIGHMEM_4G to 
HIGHMEM_64G, X86_PAE was also selected and the resutling kernel works.

Also, I verified that the olid proliants with 6G RAM already have 
HIGHMEM_64G set and they do not exhibit the problem either.

-- 
Meelis Roos (mroos@linux.ee)