Haiku x64 (hrev54958) stopped booting after memory upgrade

[fotisk]

I did an official memory upgrade on my Thinkpad T450s. Aside from the on-board 4Gb I just added 8Gb on the single available slot. After that the system does not boot at all. Not even the first icon lights up. (Note: From BIOS configuration video card takes 512M of RAM). Looks like a BIOS boot only thing (see 4 below).

Experiments:

1. Activated "on screen debug output" through boot loader options but nothing is displayed. Again only the logo without not even the fisrt icon light up.

2. Checking the option to ignore memory above 4Gib on boot loader does allow the system to boot but the memory it sees as available is much less than 3,5Gb I would expect.

3. Linux booting from usb sees all available memory (11,5 Gb if we subtract video memory).

4. Gave priority to EFI boot from firmware settings and selected Haiku USB stick to boot (anyboot image). It booted my Haiku disk partition and was able to see whole memory!! The strange thing is that when I tried to select boot partition from (USB) EFI boot loader options it only displays as available ONLY the hard disk Haiku partition; nothing from USB stick itself. But at least this looks like a workaround: EFI boot will probably work but I need to re-partition accordingly my hard disk...

[korli]

Please test with a current nightly.