2.4.5-ac1 won't boot with 4GB bigmem option

[Ben Twijnstra]

Hi,

I compiled and booted the 2.4.5-ac1 kernel with the CONFIG_HIGHMEM4G=y option 
and got an oops in __alloc_pages() (called by alloc_bounce() called by 
schedule()). Everything works fine if I turn the 4GB mode off.

Machine is a Dell Precision with 2 Xeons and 2GB of RAM.

2.4.5 works fine with the 4GB. Any idea what changed between the two?

Grtz,

Ben