December 2002 - Darwin-kernel

Re: howto compile kernel for ktrace
by Michael Marti 06 Dec '02

06 Dec '02

Thank you so much Justin. I still get the same error, even if I use xnu-201-42-3 as the tag. Maybe I'm connecting to the wrong server. > Can't say for sure about what server to use; the website should give you > that information, though. What website do you mean? I have been looking in the apple.com webpage, but the Information comes only piecewise and I do not find the list of CVS servers... Thanks again! Michael. -- ---------------------------------------------------------------------------- Michael Marti Centro de Fisica dos Plasmas Instituto Superior Tecnico 1049-001 Lisboa Tel. +351 21 841 93 79 ---------------------------------------------------------------------------- _______________________________________________ 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: Problems with float in a kext
by Sean McBride 06 Dec '02

06 Dec '02

Heiko Panther (heiko.panther(a)web.de) wrote on Fri, 6 Dec 2002 16:08:35 +0100: >What's wrong here? I know that kernel code usually uses float emulation. >I couldn't find out which steps to take to activate the emulation. I >tried -msoft-float for compiling and linking, but that did not help. If you want your kext to use the FPU you must NOT specify the -msoft- float switch. Also note that IOLog does not support %f to print floats. :( _______________________________________________ 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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Problems with float in a kext
by Heiko Panther 06 Dec '02

06 Dec '02

My global or class member floats behave weird since I use 10.2 and gcc 3.1. For example, I define globally: float a=1.5, b=1000; Then, in some random startup function (called from an Init() function) I do: IOLog("%ld, %ld, %ld, %ld\n", (UInt32)(0.5*1000), (UInt32)(a*1000), (UInt32)b, (UInt32)(a*b)); and the result is: Dec 6 16:03:47 Hyp mach_kernel: 500, -1, -1, -2147483648 What's wrong here? I know that kernel code usually uses float emulation. I couldn't find out which steps to take to activate the emulation. I tried -msoft-float for compiling and linking, but that did not help. Note that this worked with my 10.1.5 dev environment! Thanks Heiko Panther _______________________________________________ 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: Interpretation of Kernel panic logs?
by robert＠elastica.com 06 Dec '02

06 Dec '02

Just exactly how thorough is the memory testing on that CD? When I run it memory tests pass ok. My Apple technician says that it's a faulty logic board but he doesn't have any proof other than he cannot find anything else that would be causing this problem. As I'm in Thailand overheating could be an issue. Most panics are Data Access type errors usually with the same backtrace infomration but there's no symbols in the backtrace so I'm lost as to here to start. I had been running my Tibook onm it's AC adaptor a lot recently. I'm told it gets hotter than if you are running on battery. I have seen the problem recently with a clean 10.2 10.2.1 and 10.2.2 installation. On Wed, 4 Dec 2002, William Kucharski wrote: > Robert, > > The wide variety of panics you're seeing (some instruction miss, some data) > make me believe there is memory corruption of some type going on, which makes > me suspect the RAM in your TiBook may be acting up (or is overheating.) > > Specifically the last trap you received - the Unexpected user state trap of > 0x401 - should never occur. > > A reinstall of 10.2.2 couldn't hurt but you may want to run your Hardware Test > CD first just to see if it has any RAM complaints... > > William Kucharski > kucharsk(a)mac.com > _______________________________________________ > 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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Re: howto compile kernel for ktrace
by Justin C. Walker 05 Dec '02

05 Dec '02

On Thursday, December 5, 2002, at 11:47 AM, Michael Marti wrote: I use uname -a to get the xnu name, but when I do: cvs co -r xnu-201.42.3 xnu I get the message: Protocol error: uncounted data discarded The only kernel I can check out is xnu-10. How do I know if this kernel works on my system? Can't say for sure about what server to use; the website should give you that information, though. That's a weird message from CVS, but I believe that CVS (still) doesn't like '.' in CVS tags. Try 'xnu-201-42-3'. Furthermore I would like to know where I have to change the config of the kernel to be able to use ktrace. Each 'component' of xnu (BSD, IOKit, Mach) has a conf subdirectory, and therein lies much of the build magic. For 'ktrace', look in bsd/conf/MASTER.{ppc,i386}. There is a sequence of lines like: # RELEASE = [.....] Add the term 'ktrace' in the list within the brackets, and rebuild the 'bsd' piece (cd bsd; make all; make mach_kernel). Regards, Justin -- Justin C. Walker, Curmudgeon-At-Large * Institute for General Semantics | When LuteFisk is outlawed | Only outlaws will have | LuteFisk *--------------------------------------*-------------------------------* _______________________________________________ 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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howto compile kernel for ktrace
by Michael Marti 05 Dec '02

05 Dec '02

Dear List Members I know that this has been discussed here before, but I don't find the information's. I apologize! I'm trying to compile the os x kernel in order to use ktrace, but I don't understand the several information: I use: setenv CVSROOT :pserver:anonymous@anoncvs.opendarwin.org:/Volumes/src/cvs/Apple There seem to be several CVS servers. Which one is the right one? I use uname -a to get the xnu name, but when I do: cvs co -r xnu-201.42.3 xnu I get the message: Protocol error: uncounted data discarded The only kernel I can check out is xnu-10. How do I know if this kernel works on my system? Furthermore I would like to know where I have to change the config of the kernel to be able to use ktrace. I'm sorry if this is off topic and I'm sorry that I'm bloody such a newbie, but I would really like to use ktrace! Thanks for your Help! Michael. -- ---------------------------------------------------------------------------- Michael Marti Centro de Fisica dos Plasmas Instituto Superior Tecnico 1049-001 Lisboa Tel. +351 21 841 93 79 ---------------------------------------------------------------------------- _______________________________________________ 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: Missing twalk(), tfind(), tsearch() and tdelete() functions
by Peter Montagner 05 Dec '02

05 Dec '02

Yes, The man page is there but the header file search.h isn't (at least on my machine). Also, the man page db(3) is missing but the header file db.h is there. Peter On Thursday, December 5, 2002, at 09:03 AM, Peter Dyballa wrote: Hello! "apropos tsearch" reveals: tsearch(3), tfind(3), tdelete(3), twalk(3) - manipulate binary search trees and "locate tsearch" points to: /usr/share/man/man3/tsearch.3 -- Greetings Pete _______________________________________________ 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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Re: Missing twalk(), tfind(), tsearch() and tdelete() functions
by Peter Dyballa 04 Dec '02

04 Dec '02

Hello! "apropos tsearch" reveals: tsearch(3), tfind(3), tdelete(3), twalk(3) - manipulate binary search trees and "locate tsearch" points to: /usr/share/man/man3/tsearch.3 -- Greetings Pete _______________________________________________ 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: IPSec command line tool on Jaguar?
by Peter Dyballa 04 Dec '02

04 Dec '02

Hello! There are four steps into the IPSec heaven: locate ipsec locate IPSec apropos ipsec man setkey The final fifth one is too complicated to make it count. -- Greetings Pete _______________________________________________ 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: testing for open files or volumes (Alex Reynolds)
by Peter Dyballa 04 Dec '02

04 Dec '02

Hello! Take a look into the sources of lsof -- list open files. At least Jaguar/Mac OS X 10.2.2 has it compiled as /usr/sbin/lsof. lsof also finds open network communication points (but I'm usually off-line). COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME loginwind 344 pete 7r VREG 14,10 528168 33047 /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/Resources/German.lproj/Localized.rsrc loginwind 344 pete 8w VREG 14,10 24716 961708 /private/var/tmp/console.log loginwind 344 pete 9u VCHR 5,0 0t24679 34881284 /dev/ptyp0 loginwind 344 pete 10u VCHR 4,0 0t0 34881412 /dev/ttyp0 loginwind 344 pete 11r VREG 14,10 261 5664 / (/dev/disk0s10) loginwind 344 pete 12r VREG 14,10 33908 655554 / (/dev/disk0s10) loginwind 344 pete 13r 0x0209639c file struct, ty=0x3, op=0x2db174 pbs 362 pete cwd VDIR 14,10 6016 2 / (/dev/disk0s10) pbs 362 pete 0u VCHR 0,0 0t76 34763524 /dev/console pbs 362 pete 1u VCHR 0,0 0t76 34763524 /dev/console pbs 362 pete 2u VCHR 0,0 0t76 34763524 /dev/console Dock 365 pete cwd VDIR 14,10 6016 2 / (/dev/disk0s10) Dock 365 pete 0r VCHR 3,2 0t0 34763012 /dev/null Dock 365 pete 1w VCHR 0,0 0t0 34763524 /dev/console LaunchCFM 21523 pete 9r unix 0x022eeea8 0t0 ->0x022ee10c LaunchCFM 21523 pete 10w unix 0x022ee10c 0t0 ->0x022eeea8 LaunchCFM 21523 pete 11u VREG 14,10 503956 384214 /Applications/Netscape 7e/Netscape.app/Contents/MacOS/Component Registry LaunchCFM 21523 pete 12u unix 0x022eff68 0t0 ->0x022f06bc Some snippets ... -- Greetings Pete _______________________________________________ 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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