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Linux kernel Oops on boot with GRUB without --no-mem-option flag - here'
From: |
Derrik Pates |
Subject: |
Linux kernel Oops on boot with GRUB without --no-mem-option flag - here's why |
Date: |
Thu, 2 Aug 2001 09:15:52 -0600 (MDT) |
I looked at the 'displaymem' output on the system I've had troubles with
GRUB on - I've discovered why it Oops'es on boot without the
--no-mem-option flag passed to the 'kernel' command. For some reason, the
systems in question (Compaq ProLiant 3000 systems, type P09) think they
have a 0-byte-long usable memory range - starting at the 4 GB mark.
Therefore, GRUB thinks the max address is at - tada! - 4 gigabytes. These
systems, however, have only 512 MB of RAM apiece, so I know that's wrong.
I'll be looking at modifying the code in stage2/common.c that gets a value
for the max_addr variable, to hopefully make it check for a 0-byte-long
usable range, and ignore it.
Derrik Pates | Sysadmin, Douglas School | #linuxOS on EFnet
address@hidden | District (dsdk12.net) | #linuxOS on OPN
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