Messages in this thread | | | Date | Tue, 10 Jan 2006 08:43:33 -0500 (EST) | From | Byron Stanoszek <> | Subject | Re: 2G memory split |
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On Tue, 10 Jan 2006, Jens Axboe wrote:
>> yes, i made it totally configurable in 2.4 days: 1:3, 2/2 and 3:1 splits >> were possible. It was a larger patch to enable all this across x86, but >> the Kconfig portion was removed a bit later because people _frequently_ >> misconfigured their kernels and then complained about the results. > > How is this different than all other sorts of misconfigurations? As far > as I can tell, the biggest "problem" for some is if they depend on some > binary module that will of course break with a different page offset. > > For simplicity, I didn't add more than the 2/2 split, where we could add > even a 3/1 kernel/user or a 0.5/3.5 (I think sles8 had this).
I prefer setting __PAGE_OFFSET to (0x78000000) on machines with 2GB of RAM. This seems to let the kernel use the full 2GB of memory, rather than just 1920-1984 MB (at least back in 2.4 days).
-Byron
-- Byron Stanoszek Ph: (330) 644-3059 Systems Programmer Fax: (330) 644-8110 Commercial Timesharing Inc. Email: byron@comtime.com - 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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