April 2003 - Darwin-kernel - lists.apple.com

Darwin source for Mac OS X 10.2.5
by Roger Midmore 18 Apr '03

18 Apr '03

I want to install the new Darwin kernel on a second partition on my PowerBook to play around with and learn Darwin. Is there anyway to download the complete source for darwin 6.5 with all the standard packages. http://www.opensource.apple.com/darwinsource/10.2.5/index.html has everything but they are broken up into different projects. roger _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: Unified Buffer Cache
by Shawn Erickson 18 Apr '03

18 Apr '03

On Wednesday, April 16, 2003, at 12:36 PM, Joey Echeverria wrote: Does anybody on this list know how to increase the size of the unified buffer cache on a Darwin system? Add more physical RAM to your system. :-) -Shawn _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: Debugging question
by Eric Long 17 Apr '03

17 Apr '03

> I'm guessing you mean "Airport > on the target", though. Yeah. I've got a bug that only reproduces with Airport. Beats me why. I'm trying to figure out what's happening from log messages. Thanks to you and Quinn for the feedback. Eric _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: Debugging question
by Justin Walker 17 Apr '03

17 Apr '03

On Thursday, Apr 17, 2003, at 15:09 US/Pacific, Eric Long wrote: I think the answer to this question is no: Is it possible to debug a kernel extension through 2 machines on the same subnet through a wireless connection? It's certainly possible. If you mean "wireless on the debugging system", no problem; if you mean "wireless on the target", this will depend on the device handler. The driver has to have "kdp" support built in in order to support debugging as a target. Since the Airport code is proprietary, we can't check directly, so we'll have to get a Knowledgeable Source (hint, hint) to come clean. If it's for another device (e.g., PCCard), one could check. I'm guessing you mean "Airport on the target", though. Regards, Justin -- Justin C. Walker, Curmudgeon-At-Large * Institute for General Semantics | If you're not confused, | You're not paying attention *--------------------------------------*-------------------------------* _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: Debugging question
by Quinn 17 Apr '03

17 Apr '03

At 15:09 -0700 17/4/03, Eric Long wrote: I think the answer to this question is no: And you'd be right. Is it possible to debug a kernel extension through 2 machines on the same subnet through a wireless connection? Network drivers must include special support for kernel debugging (see the comments associated with attachDebuggerClient in "IONetworkController.h"). The AirPort driver does not have that support. S+E -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Technical Support * Networking, Communications, Hardware _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Debugging question
by Eric Long 17 Apr '03

17 Apr '03

I think the answer to this question is no: Is it possible to debug a kernel extension through 2 machines on the same subnet through a wireless connection? Thanks, Eric Long _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Darwin source for Mac OS X 10.2.5 is available
by Quinn 17 Apr '03

17 Apr '03

Greetings All For those of you who, like me, don't have time to read the main darwin-development mailing list. Date: Tue, 15 Apr 2003 13:47:55 -0700 Subject: Darwin source for Mac OS X 10.2.5 is available From: Ron Dumont <rond(a)apple.com> To: darwin-development(a)lists.apple.com The Darwin team is pleased to announce the immediate availability of the Darwin 6.5 source code corresponding to Mac OS X 10.2.5. Darwin and a number of other projects are available via Web DAV (as well as regular HTTP) at: http://www.opensource.apple.com/darwinsource/10.2.5/ Darwin 6.5 is what we call an 'on-cycle' source-code release, where the corresponding Darwin source is made available soon after a new release of Mac OS X to customers. Several projects (e.g., gcc, gdb, CUPS, Rendezvous) will continue to do 'off-cycle' releases, where the source code is updated more frequently than our commercial releases. These off-cycle projects will be available at our newly renovated CVS servers, and information may be found at: http://developer.apple.com/darwin/tools/cvs/howto.html Please note that the CVS login method has changed. Sincerely yours, The Darwin Team S+E -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Technical Support * Networking, Communications, Hardware _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: Kext on 10.1.5
by Brian Bergstrand 16 Apr '03

16 Apr '03

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Wednesday, April 16, 2003, at 01:03 PM, Godfrey van der Linden wrote: > G'day Eric, > > Sorry mate no good answer. The 10.1.5 kernel is built with the gcc > 2.95. You will never be able to load a gcc 3.1 compiled kext on a > 10.1.x system. > That's only true for C++ (which is what the OP was talking about). You can compile straight C kexts with 3.1 and they will load fine on 10.1.x. Just a slight clarification. > Godfrey > > At 10:24 -0700 03-4-16, Eric Long wrote: >> Hi all, >> >> This list has helped me wrangle with some of the pitfalls with kernel >> extensions. Thanks to those who have provided input at various times. >> >> At present, I have a working kext for Jaguar. I'm now trying to >> create a >> version for 10.1.5. As far as I can tell, we should be able to >> support >> 10.1.5. At this point though, I'm encountering some "resistance". >> >> I found that the 2.9.5 GCC compiler used by PB, shipped with the >> 10.1.5 Dev >> tools, choked on the code. I think it should have been able to handle >> it, >> but it's not happy. For instance, I use a debugging macro with a >> variable >> arguments list, and it doesn't know how to handle it. It would be a >> nightmare for me to rewrite this code to suit that compiler. >> > Brian Bergstrand <http://www.classicalguitar.net/brian/> PGP Key ID: 0xB6C7B6A2 Generally we study too much and think too little. - Henry Latham Doherty -----BEGIN PGP SIGNATURE----- Version: PGP 8.0.2 iQA/AwUBPp3NsXnR2Fu2x7aiEQIyYQCgk+w7dHAhxPQ+yah4cQUUYS/TWX8AoIgs HwPuLtM89WN58c6JtoNaV/mr =CrDZ -----END PGP SIGNATURE----- _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: Kext on 10.1.5
by Eric Long 16 Apr '03

16 Apr '03

>> I found that the 2.9.5 GCC compiler used by PB, shipped with the 10.1.5 Dev >> tools, choked on the code. I think it should have been able to handle it, >> but it's not happy. For instance, I use a debugging macro with a variable >> arguments list, and it doesn't know how to handle it. FWIW, if anyone is curious... GCC 2.9.5 has a different syntax, but it does support macros with a variable number of arguments. Eric _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: Unified Buffer Cache
by Jim Magee 16 Apr '03

16 Apr '03

The unified buffer cache consumes all available memory, and therefore, its size cannot be increased. As its name implies, the buffer cache is unified with the rest of virtual memory on the system. The most recently used pages will be retained[1], whether they be code for a program of cache pages from a read file. --Jim [1]. Calling it LRU is dramatically over-simplifying the real replacement algorithm which uses working sets, memory usage hints from both the filesystem layer and the VM layer, as well as clustering techniques to determine which pages to evict/replace. But the main point holds, its a unified set of page frames for buffer cache and virtual memory use. On Wednesday, April 16, 2003, at 3:36 PM, Joey Echeverria wrote: Does anybody on this list know how to increase the size of the unified buffer cache on a Darwin system? This can be either in the source code or on a running system. -Joey Joseph G. Echeverria Department of Electrical and Computer Engineering Carnegie Mellon University _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored. _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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