Red Hat Enterprise 5.4 WS Segmentation faults

[singletrack]

Hi all,

I am running VirtualBox 4.0.8 on an openSUSE 11.4 x86-64 host with guest OS Red Hat Enterprise 5.4 Workstation x86-64. This guest OS is officially supported for the Xilinx ISE 13.1 suite (http://www.xilinx.com/products/design-t ... /index.htm) which is what I am having problems with.

Sometimes the software runs fine but mostly I see problems such as the examples below:

1) ngdbuild[2640]: segfault at 0000000100500018 rip 00002af022548ac0 rsp 00007fff03cfa640 error 4
2) map[2718] general protection rip:2b4a290c5f9c rsp:7ffffba845f0 error:0
3) map[2656]: segfault at 0000000100500000 rip 00002aec99ee50f0 rsp 00007fff12acfba0 error 4
4) Writing output files...
Process "Map" failed
5) xdl[2899] general protection rip:3090479090 rsp:7fffc93d05a8 error:0

Sometimes cleaning the project and rebooting helps but normally not. It is simply too unstable to use reliably and I need this software to work.

The same software running on a supported Linux installation installed natively on another machine works perfectly so I am sure this is a virtualisation issue.

The host machine has 12 GB RAM and the guest has been allocated just over 6 GB RAM.
Host processor: Intel(R) Core(TM)2 Duo CPU T9600 @ 2.80GHz

Here is what I have tried in the VirtualBox settings with no success:

a) Switching off "PAE/NX".
b) Switching off "Enable Nested Paging"
c) Switching off "Enable IO APIC".
d) Switching off "Enable VT-x/AMD-V" (had no effect since is required for 64-bit guests).

Note that the guest was installed using VirtualBox 4.0.4 and I subsequently updated to 4.0.8.

What can I do here to get this to work stably?

Many thanks for your time.