Re: [gentoo-user] Gentoo segfaults on virtualbox-4.1.14 when running on AMD bulldozer

[Alan McKinnon]

On Fri, 27 Apr 2012 20:35:47 +0100
Markos Chandras <hwoarang@g.o> wrote:

> Hi all
>
> This is a copy of the thread I recently opened on Gentoo forums[1].
>
> I replaced my Phenom II cpu with a new 6-core AMD bulldozer. However,
> I noticed that all of my Gentoo virtual machines throw (compiler)
> segmentation faults when building or running any application. This
> happens on a Gentoo testing VM, on a Gentoo stable VM and on a brand
> new Gentoo installation. I have no idea where to look for that
> problem.
>
> System:
>
> Motherboard: Asus M5A78L-M/USB3
> CPU: AMD FX(tm)-6100 Six-Core Processor
> Host: Gentoo x86_64 testing (has not problem at all, so I presume HW
> problem is eliminated)
>
> Any ideas?
>

I ran into the same system here: VMs crash soon after being launched
when they first start doing some real work. I only tested Gentoo guests
though.

But, I have Intel i7 cpu.

This is an ~amd64 (unstable)  host, running amd64 (stable) guests.

The only clue is in messages:

May  1 16:25:01 khamul kernel: [73366.634971] VBoxHeadless[2642]:
segfault at 10 ip 00007fa35e40599f sp 00007fa35c5b8b00 error 4 in
VBoxDD.so[7fa35e311000+144000]

I downgraded virtual box from 4.1.14 to 4.1.12 and initial
tests are good. A guest is doing a full emerge world and the first
package is glibc. Previously it wouldn't even manage to download
sources fully.

It's too early to draw any real conclusions though. I'm still rather
suspicious of glibc on the host (just as hunch, as that version seems
to be popping up in many more bug reports than usual)


-- 
Alan McKinnnon
alan.mckinnon@×××××.com