Red Hat Bugzilla – Bug 431892
x86-64 kernel doesnt works with more than 6 gb of ram, with mem=4G machine works fine.
Last modified: 2009-01-09 00:56:38 EST
Description of problem:
I have a x2 machine (4400+), asus m2v motherboard with 6 gb of ram, I am using
fedora 8 x86-64, the kernel only boots fine with mem=4G parameter any value
lower than 4GB works.
I have tested with all 64 bits kernels (from fc6 to fc9) including pxe images
and only works with mem=4G or less
Version-Release number of selected component (if applicable):
I have see some messages on screen about
(In reply to comment #0)
> Description of problem:
> I have a x2 machine (4400+), asus m2v motherboard with 6 gb of ram, I am using
> fedora 8 x86-64, the kernel only boots fine with mem=4G parameter any value
> lower than 4GB works.
What does that mean exactly?
a) Doesn't boot at all with >4GB of memory.
b) Boots but runs very slowly.
a) yes, only boot with mem=4G, with mem=5G or 6G or without mem kernel crash
b) with mem=4G or less boot and works fast, with 5 or 6G doesn't boot.
(In reply to comment #3)
> a) yes, only boot with mem=4G, with mem=5G or 6G or without mem kernel crash
> b) with mem=4G or less boot and works fast, with 5 or 6G doesn't boot.
Can we get a copy of the crash messages?
I have removed 2 gigs of memory from this machine and now is working fine.
I don't have a serial cable to get the complete crash message.
you can close this ticket.
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