Messages in this thread | | | Subject | Re: memtest86 on the opteron | From | (Eric W. Biederman) | Date | 09 Jun 2003 10:04:16 -0600 |
| |
Warren Togami <warren@togami.com> writes:
> On Sat, 2003-06-07 at 20:27, Andi Kleen wrote: > > Bryan O'Sullivan <bos@serpentine.com> writes: > > > > > On Sat, 2003-06-07 at 14:43, Pavel Machek wrote: > > > > > > > Well, as opteron is i386-compatible, you should be able to simply use > > > > i386 memtest... > > > > > > It doesn't work. Crashes and reboots the system shortly after it > > > starts. The serial console support appears to have bit-rotted, too, so > > > I've not been able to capture an output screen to diagnose the problem. > > > > The problem is the CPUID handling in memtest86. It does not expect > > the 15 model number on AMD systems. Someone did a patch for it, but > > I don't remember where they put it. Anyways should be easy to fix again > > given the source. > > > > If you find the patch I am interested in it. Please CC me. > > I am guessing that a normal 32bit compiled memtest86 wont be able to > test beyond 4GB of RAM on AMD64?
memtest86 has PAE support so it should be able to test everything. I have tested with 6GB of RAM on an old PIII.
Beyond the cpuid thing. There is a bug in the probing of how much memory is cached. Last time I was playing with it I just disabled that section of code.
If nothing else ping me a few times because I will need this shortly. If it really does not work. And I am familiar with the code so I will certainly get it fixed.
Eric - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |