Messages in this thread | | | Date | Sun, 19 Sep 2004 00:18:38 +1000 (EST) | From | Sergei Haller <> | Subject | Re: lost memory on a 4GB amd64 |
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On Fri, 17 Sep 2004, Sergei Haller (SH) wrote:
SH> AW> No - thats what I use. Do you have MTRR support enabled? SH> SH> yes. SH> SH> AW> I'll send you my .config file; Perhaps you could try that. SH> SH> I just had a look at it. tomorrow morning I'll try out some of the SH> options.
I tried out many configurations of the kernel config, nothing helped.
now I switched off SMP and it runs stable! So what am I to do about it?
that's the summary:
* if the memory is configured in one chunk (0-4gb) then the SMP kernel works, but I only have about 3.4 gb main memory. (I know why)
* if the memory configuration is as follows: the first 3gb ar at the normal address range, the fourth gb is at the address range 4-5gb. then all 4gb are available (not quite -- a few mb ere missing, but thats ok) and - the SMP kernel panics as soon as I start X or allocate about 1.6gb of memory (maybe less would trigger that as well, that was the only test I ran) ahh, kernel compillation runs fine. - the non-SMP kernel runs stable. - memtest86 runs fine
all kernels I mention are 2.6.8.1 vanilla.
What do you think? Is there anything I can do?
Sergei -- -------------------------------------------------------------------- -?) eMail: Sergei.Haller@math.uni-giessen.de /\\ -------------------------------------------------------------------- _\_V Be careful of reading health books, you might die of a misprint. -- Mark Twain - 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/
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