https://bugzilla.kernel.org/show_bug.cgi?id=13170

Francisco flopezluro@gmail.com changed:

What |Removed |Added ---------------------------------------------------------------------------- CC| |flopezluro@gmail.com

--- Comment #63 from Francisco flopezluro@gmail.com 2011-08-17 00:51:30 --- Hi, I've been following this bug for a while since I've a macbook 5,2. I've been able to use linux (ubuntu) with refit+grub-efi+nvidia driver for a while. Last week I reinstalled everything, Snow Leopard, Win7 and Ubuntu natty, everything works PERFECT using the same approach.

Today, I've upgraded the RAM, from 2 to 4 Gigs (removed 2x1Gb and put 2x2Gb). Linux doesn't boot anymore with refit+grub-efi, only using maxcpus=1 or acpi=off (still with Nvidia). The ram is OK, passes memtest86+, and win and snow leopard work without any problem. If I remove ANY one of the memory chips (1x2Gb 800Mhz) linux can boot again with grub-efi.

I guess this is probably a problem of grub-efi, but as it is related I wanted to post it here, sorry if it's the wrong place.

Here you can see the boot error from grub-efi when booting with 4Gb. http://picturepush.com/public/6333905

Please let me know if you want me to test anything in particular. I have Natty with Nvidia 270.41.06, with uname -r: 2.6.38-10-generic

Sadly now I have to give up one CORE for 2gb of extra RAM :(

Thanks! Francisco