November 2007 - Darwin-dev - lists.apple.com

launchd vs IOKit intialization
by Stéphane Sudre 02 Nov '07

02 Nov '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… Is there supposed to be a defined launch order for launchd and IOKit kexts? >From what I can see on Leopard, launchd can launch daemons before all the IOKit kexts are loaded. I then have one question if the answer is that these 2 processes can run at the same time: If you load a IOKit kext from a launchd script, can it cause trouble when the IOKit startup procedure tries to launch it just before that or just after that? This email sent to site_archiver(a)lists.apple.com

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Re: X11 error on Mac OS X 10.5
by Martin Costabel 02 Nov '07

02 Nov '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Thunderbird 2.0.0.6 (Macintosh/20070728) Greetings, I tried running: gdb AbiWord-2.4 --sync And gdb reports: unrecognized option `--sync' -- Martin Thanks, Jeshua Lacock, Owner <http://OpenOSX.com> phone: 877.240.1364 _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/costabel%40wanadoo.fr _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… Jeshua Lacock wrote: I am getting a strange X11 error on Mac OS X 10.5 with AbiWord that was working great on Mac OS X 10.4 with gtk 2.10.12, glib 2.12.12: The program 'AbiWord-2.4' received an X Window System error. This probably reflects a bug in the program. The error was 'BadMatch (invalid parameter attributes)'. (Details: serial 1487 error_code 8 request_code 2 minor_code 0) (Note to programmers: normally, X errors are reported asynchronously; that is, you will receive the error a while after causing it. To debug your program, run it with the --sync command line option to change this behavior. You can then get a meaningful backtrace from your debugger if you break on the gdk_x_error() function.) So I can't get GDB to report any useful information, and I have no idea where to start looking. Any hints would be greatly appreciated. According to <http://bugs.freedesktop.org/show_bug.cgi?id=12995>, this is a misunderstanding between gtk, cairo, and X11 about the bit depth of "millions of colors", 24 or 32. Please file a bug with Apple's bugreporter so that it gets more weight. A reported workaround seems to be to set the output bit depth in the X11 Preferences to "Thousands of colors". This email sent to costabel(a)wanadoo.fr --------------------------------------------------------------------------------------- Orange vous informe que cet e-mail a ete controle par l'anti-virus mail.Aucun virus connu a ce jour par nos services n'a ete detecte. This email sent to site_archiver(a)lists.apple.com

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X11 error on Mac OS X 10.5
by Jeshua Lacock 02 Nov '07

02 Nov '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Greetings, I tried running: gdb AbiWord-2.4 --sync And gdb reports: unrecognized option `--sync' Thanks, Jeshua Lacock, Owner <http://OpenOSX.com> phone: 877.240.1364 _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… I am getting a strange X11 error on Mac OS X 10.5 with AbiWord that was working great on Mac OS X 10.4 with gtk 2.10.12, glib 2.12.12: The program 'AbiWord-2.4' received an X Window System error. This probably reflects a bug in the program. The error was 'BadMatch (invalid parameter attributes)'. (Details: serial 1487 error_code 8 request_code 2 minor_code 0) (Note to programmers: normally, X errors are reported asynchronously; that is, you will receive the error a while after causing it. To debug your program, run it with the --sync command line option to change this behavior. You can then get a meaningful backtrace from your debugger if you break on the gdk_x_error() function.) So I can't get GDB to report any useful information, and I have no idea where to start looking. Any hints would be greatly appreciated. This email sent to site_archiver(a)lists.apple.com

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Re: libgmalloc problem
by Eric Albert 02 Nov '07

02 Nov '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Nov 1, 2007, at 1:48 PM, Terry Lambert wrote: Hi all. Hopefully this is the right list to report this problem. To debug our SW, we try to use libgmalloc, as described here: http://developer.apple.com/technotes/tn2004/tn2124.html However we encountered troubles with libgmalloc. The following simple program is good enough to demonstrate it. [ ... ] $ gcc -O2 -fomit-frame-pointer problem.c $ DYLD_INSERT_LIBRARIES=/usr/lib/libgmalloc.dylib ./a.out foo bar Allocations will be placed on word (4 byte) boundaries. - Small buffer overruns may not be noticed. - Applications using AltiVec instructions may fail. GuardMalloc-11 Segmentation fault (core dumped) Hope this helps, Eric _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… On Nov 1, 2007, at 5:16 AM, Martin Mitas wrote: GNU Malloc's alignment boundaries are insufficiently stringent for floating pint register spills, which happen when autovectorization happens (which is enable in the compiler by default), or when explicitly using floating point. This isn't GNU malloc; it's Guard Malloc. But if the alignment issue mentioned above is the issue here (which is quite rare with gmalloc in my experience, since data types requiring 16-byte alignment are usually allocated in multiples-of-16-bytes chunks, which results in them being properly aligned), you can work around it by setting the MALLOC_VECTOR_SIZE environment variable to 1. See the libgmalloc man page for details. GCC on Mac OS X doesn't autovectorize by default, by the way. Terry's probably thinking of how we use the XMM registers for floating point operations by default, which means that we use the SSE instructions. But we use scalar versions of those instructions, and the compiler doesn't automatically vectorize code patterns unless you explicitly tell it to. That said, this crash doesn't have anything to do with floating point, and it doesn't appear to have anything to do with misalignment. It doesn't crash on Leopard, but on 10.4.10, it crashes while dereferencing $eax, when $eax is "argv". Debugging it a bit and staring at the gmalloc source code for 10.4.10, I'm guessing that gcc's __builtin_frame_address() doesn't work very well when building with -fomit-frame-pointer. You can avoid this code by setting the undocumented MALLOC_NO_BACKTRACE environment variable to 1. When I do that, your code runs to completion. This email sent to site_archiver(a)lists.apple.com

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Re: Personality?
by Dave Zarzycki 01 Nov '07

01 Nov '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Nov 1, 2007, at 3:41 PM, Dean Reece wrote: davez _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… On Nov 1, 2007, at 3:20 PM, Stéphane Sudre wrote: What's a personality supposed to be for a StartupItem or Kernel Extension? For kexts, it is documented here: (I just went to <http://developer.apple.com > and searched for "Personality") <http://developer.apple.com/documentation/DeviceDrivers/Conceptual/IOKitFund… > Basically, it is a dictionary in your kext's plist that is used to drive IOKit's passive matching. Also, when the driver goes through active matching, the contents of the personality is passed to the driver as its initial property list. Note that any given kext can have several personalities, each offering different matching criteria, and possibly other data left as hints to the driver object that gets run later. This is why they are called "personalities", since one kext can match on several different kinds of devices and can alter its behavior based on the selected personality. Also, your kext only has to contain personalities if it is going to participate in IOKit matching. IOKit families typically don't have personalities since they are loaded as libraries for other kexts, and non-IOKit kexts obviously don't have personalities. I'll let somebody else address StartupItems. StartupItems are deprecated. The replacement technology is called launchd. The closest feature that launchd has that might be considered analogous to IOKit personalities is the conditional keep-alive logic. I'd recommend searching for "KeepAlive" in the launchd.plist man page for more information. This email sent to site_archiver(a)lists.apple.com

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Re: Personality?
by Dean Reece 01 Nov '07

01 Nov '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com I'll let somebody else address StartupItems. - Dean _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… On Nov 1, 2007, at 3:20 PM, Stéphane Sudre wrote: What's a personality supposed to be for a StartupItem or Kernel Extension? For kexts, it is documented here: (I just went to <http://developer.apple.com > and searched for "Personality") <http://developer.apple.com/documentation/DeviceDrivers/Conceptual/IOKitFund… > Basically, it is a dictionary in your kext's plist that is used to drive IOKit's passive matching. Also, when the driver goes through active matching, the contents of the personality is passed to the driver as its initial property list. Note that any given kext can have several personalities, each offering different matching criteria, and possibly other data left as hints to the driver object that gets run later. This is why they are called "personalities", since one kext can match on several different kinds of devices and can alter its behavior based on the selected personality. Also, your kext only has to contain personalities if it is going to participate in IOKit matching. IOKit families typically don't have personalities since they are loaded as libraries for other kexts, and non-IOKit kexts obviously don't have personalities. This email sent to site_archiver(a)lists.apple.com

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Personality?
by Stéphane Sudre 01 Nov '07

01 Nov '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… What's a personality supposed to be for a StartupItem or Kernel Extension? This email sent to site_archiver(a)lists.apple.com

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Re: libgmalloc problem
by Terry Lambert 01 Nov '07

01 Nov '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hi all. Hopefully this is the right list to report this problem. To debug our SW, we try to use libgmalloc, as described here: http://developer.apple.com/technotes/tn2004/tn2124.html However we encountered troubles with libgmalloc. The following simple program is good enough to demonstrate it. [ ... ] $ gcc -O2 -fomit-frame-pointer problem.c $ DYLD_INSERT_LIBRARIES=/usr/lib/libgmalloc.dylib ./a.out foo bar Allocations will be placed on word (4 byte) boundaries. - Small buffer overruns may not be noticed. - Applications using AltiVec instructions may fail. GuardMalloc-11 Segmentation fault (core dumped) -- Terry _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… On Nov 1, 2007, at 5:16 AM, Martin Mitas wrote: GNU Malloc's alignment boundaries are insufficiently stringent for floating pint register spills, which happen when autovectorization happens (which is enable in the compiler by default), or when explicitly using floating point. This email sent to site_archiver(a)lists.apple.com

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Re: Darwin 9.0 Source Code Available
by Jamison Hope 01 Nov '07

01 Nov '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Oct 31, 2007, at 2:40 AM, Kevin Van Vechten wrote: <http://www.opensource.apple.com/darwinsource/10.5/> -- Jamison Hope The PTR Group www.theptrgroup.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… Out of curiosity, whatever happened to Mac OS Forge? The last time you announced a Darwin source code release there was 8.8.1 a year ago. The Darwin team is pleased to announce the availability of the source code for Darwin 9.0. These sources correspond to Mac OS X version 10.5 Leopard for both PowerPC- and Intel-based Macintoshes. The sources are available at: (Note: not all sources currently posted, additional updates will be made as sources become available.) -- Kevin Van Vechten <kvv(a)apple.com> Apple Inc. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/jrh% 40theptrgroup.com This email sent to jrh(a)theptrgroup.com This email sent to site_archiver(a)lists.apple.com

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Re: Darwin 9.0 Source Code Available
by Shawn Erickson 01 Nov '07

01 Nov '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=HZ3eHLZE7dEECJP3D1FjiuQlFKaXFdw08seZprFGAnA=; b=o2K7iBjh3DR4uZEfqkDbKxsfnqEJV72ai/HMDniBL4PDG9Dau3toTsTpSjPbKZjONjyGq8Oy4MKXNotFoL/RLigZKipsmt8Th0GqP0VD7ZZmPSTwZ1sgPRpqDRg7jVNmHvtI51OF4u6UfAQosyoyvOBxGy/IlJQ5BOQMbp1cbAs= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=L5tdvSDk+yYaCgkTlq+lFP9gxvQCc0mPt+2bkzkzsdRJDYGToPeylN/VM8soci4igMD2YLId4a2pZXtvlXk6/7hWcrjVrLjLgJBjK7XhzJqdmlCwD2K4fZn+O4cOEZTdU4x8/mMmqmt/o1MqqFkNNUlrweDnscims+7xSaCLGks= On 11/1/07, Benjamin Huntsman <BHuntsman(a)mail2.cu-portland.edu> wrote: > Any chance we'll see a binary iso like we have in the past? I believe that was answered earlier in this thread by Mr. Hubbard. .to paraphrase: "No, we have no plans to provide ISO images (and haven't in years) but you are free to try do it" -Shawn _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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