xen-users
[Xen-users] 4GB on HP DL380 G4 on FC5 test1
Hi,
We are running FC5 test1 on some HP DL380 G4 servers with the stock xen
and xen kernels supplied in FC5 release.
We have 2 servers, one has 6GB of RAM the other 4GB. Both machines
crash (lock up) on boot, I would have hoped to see 4GB of RAM and
functional Xen in either case. Last message I see is related to PCI
devices, I can try to capture the exact point of crash if it's necessary
but I'm hoping this is a known issue.
We can get the servers to boot if we limit the amount of memory that Xen
sees (mem=3583M on the Xen command line). The machine will crash if we
set mem=3584M (or leave Xen to it's own devices) so it seems that 3583M
is the absolute RAM limit.
Does anyone know why Xen will not boot with >3583M of RAM and if there
is a workaround so that we can use 4096M in non-PAE mode?
The Xen provided by Fedora appears to be the Xen 3.0.0 release from
December 6, 2005. xen_caps shows xen-3.0-x86_32 so I assume PAE support
is not enabled.
This is my grub config in case description was not clear:
title Fedora Core (2.6.14-1.21_FC5hypervisor)
root (hd0,0)
kernel /xen.gz-2.6.14-1.21_FC5 mem=3583M
module /vmlinuz-2.6.14-1.21_FC5hypervisor ro \
root=/dev/VolGroup00/LogVol00 maxcpus=1
module /initrd-2.6.14-1.21_FC5hypervisor.img
Thanks,
Fraser
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