Messages in this thread | | | Date | Sun, 24 Nov 2002 16:48:08 +0100 | From | Petr Baudis <> | Subject | Re: [PATCH] Updated Documentation/kernel-parameters.txt (resent, v3) |
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Dear diary, on Sat, Nov 23, 2002 at 04:17:08PM CET, I got a letter, where GertJan Spoelman <kl@gjs.cc> told me, that... > Hello Petr,
Hello,
> Nice work. > Can you add/change the comments for the mem and mem=exactmap parameters. > The mem parameter doesn't behave in the same manner as it did before > 2.4.19/20, I think it changed somewhere in the 2.4.19-pre series. > On an old Compaq 2500 with 320Mb memory the following line used to work : > append="mem=320M" > now I have to use: > append="mem=exactmap mem=640K@0 mem=319M@1M" > to get the kernel to see all the memory. > On later kernels if I use mem=320M it only sees 16Mb, this is also true for > 2.5.44 (probably true for all the 2.5.x kernels) which I tried on that box. > I don't know if it's only something specific for that box and maybe not > necessarily true for other systems which have to use the mem parameter. > To me it looks like the mem parameter can now only be used to specify less > memory then the kernel actually recognizes.
Huh.. That could be some bug actually.. try to report this in a separate mail with some attractive subject ;-).
> Also can you add how to use the mem=exactmap parameter, it says now that such > lines can be constructed based on BIOS output or other requirements, that > doesn't tell me how such a line should look like, I only found out how to use > it by searching through posts on lkml, maybe you can add the above append > lines as an example.
Thanks for the idea, done.
--
Petr "Pasky" Baudis . weapon, n.: An index of the lack of development of a culture. . Public PGP key && geekcode && homepage: http://pasky.ji.cz/~pasky/ - 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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