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On Mon, 31 Oct 2016 18:06:07 -0400, |
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Alan McKinnon wrote: |
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> |
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> On 31/10/2016 23:57, John Covici wrote: |
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> > On Mon, 31 Oct 2016 13:37:50 -0400, |
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> > Meino.Cramer@×××.de wrote: |
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> >> |
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> >> Dale <rdalek1967@×××××.com> [16-10-31 18:36]: |
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> >>> Meino.Cramer@×××.de wrote: |
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> >>>> Hi, |
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> >>>> |
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> >>>> from ancient times ;) I remember, that it is not advisable |
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> >>>> to compile a linux kernel with more than one cpu core. |
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> >>>> |
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> >>>> Is that still true, or is it save to compile it with |
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> >>>> "all you can eat" ::)) ? |
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> >>>> |
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> >>>> Cheers |
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> >>>> Meino |
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> >>>> |
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> >>>> |
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> >>> |
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> >>> While I don't upgrade my kernel very often, since I don't reboot often |
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> >>> either, I've used -j 6 for my 4 core CPU for a long time. I'm pretty |
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> >>> sure I've done that ever since I built this rig. So far, no problems |
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> >>> that I have seen. |
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> >>> |
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> >>> Dale |
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> >>> |
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> >>> :-) :-) |
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> >>> |
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> >> |
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> >> Great! Currently rebuilding the kernel with '-j7 ' :) |
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> > |
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> > I wonder, how does it make sure that a dependency is always compiled |
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> > before what depends on it, so the link and all that works? |
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> > |
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> |
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> The kernel is special - it's a completely self-contained body of code |
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> with no external dependencies, so it is internally consistency almost as |
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> a matter of course. |
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> |
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> As for compiling the right things in the right order, the Makefiles take |
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> care of that just like all other software with a build system. How does |
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> the Makefile get made? Well, when you do make <something>config, you see |
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> all those deps like how iwlwifi depends on 80211 which depends on |
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> networking etc. That tells you the order things must be built in. Shove |
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> that into a Makefile maker, and voila, Bob's your auntie. Build issues |
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> tends to get fixed during the dev period so when Linux releases a kernel |
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> there's an excellent chance it will build correctly. |
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> |
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> FWIW, none of this is a specially difficult problem. It's the kind of |
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> thing I'd expect bright CS students to be able to do at the end of the |
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> first year |
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|
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OK, I will maybe try something, but I have had gentoo problems only |
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solved by -j1 due to such things, I guess. |
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|
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-- |
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Your life is like a penny. You're going to lose it. The question is: |
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How do |
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you spend it? |
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|
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John Covici |
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covici@××××××××××.com |
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