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

Re: Bluetooth State
by Garth Cummings 09 Jul '07

09 Jul '07

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Re: Problem while trying to Debug Kernel Panic with GDB using Two Mac's
by JanakiRam 09 Jul '07

09 Jul '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: a=rsa-sha1; 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; b=ul5Nvwb1PIgi7g/sBgv3HDKdWNw4hIPeSEzq8vnrNhIDsylAa27/gzhrCX0vyS+MD1T8Ex1BZZcmg6YCXyArmZiOfStiT+7LbPwwitAfu2AtvLyIeqBZrSkJLcHUMKf4AAqEwtlPiZVBGpX+hfY+jqq52SK/I+SfJzsPUBHZkF0= 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=CKlgaKI1gr+c0ofUvaGTW/ZChQlIuG/d3DE9UgHz3iLuVzJZtDefrPG7nGNAz+fXbbp70Qb2Bpp7WoyLkdx/pwbvuaKUFijC+LfltL36Zqx0g9jN1ctPYjGcMgXsd4M8djAiAUrGr0ZkjyCSkEcx1NgwXzmulVMYQotaZMespok= Hi ALL, Thanks for the quick response. I feel there is a problem with Mac OS X settings . I've reinstalled the OSX 10.4.9 then console mode is able to respond to the NMI sent by breif press of power button. The machines configurations are : Target Machiine : PPC Mac G5 Deployment Machine : PPC Mac G5 OS : Mac OS X 10.4.9 Are there any settings in the Machine which is masking the power button press. One more question is I'm having problems with Simple Kext ( not a IOKit one ). The Apple documentation -- debugging tutorial talks about the IOKit Kext which has start,init ,stop,free methods out of which some them gets called while loading and some of them gets called while running.But for Simple Kext it will have only start and stop. How to add the Break points for this simple kext. Please help me to solve this.Thanks in Advance. Hi, Thanks for the initial response. Here the machines configuration. Target Machiine : PowerBook G4 Deployment Machine : Intel Mac G5 OS : Mac OS X 10.4.9 I've tried by setting the boot-args to "0x14e" and also with "0x144-v" but no use. I've tried to press the Power button along with Apple/Cmd Key. Still unable to break the Target Machine Kernel Debug Mode. Will there be any problem with Two Different Architechture based Mac ( PPC & Intel ). Please help me to solve this. Thanks in Advance. -JanakiRam. _______________________________________________ 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 7/6/07, JanakiRam <johnyatforums(a)gmail.com> wrote: This email sent to site_archiver(a)lists.apple.com

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Re: RS: basic sound tool
by Stuart Smith 09 Jul '07

09 Jul '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Microsoft-Entourage/10.1.4.030702.0 On 7/8/07 12:03 PM, "darwin-dev-request(a)lists.apple.com" <darwin-dev-request(a)lists.apple.com> wrote: > Message: 2 > Date: Sat, 7 Jul 2007 17:28:25 -0600 > From: Roland Silver <rollos(a)kitcarson.net> > Subject: RS: basic sound tool > To: darwin-dev(a)lists.apple.com > Message-ID: <4DAB1DE5-198D-4111-B095-2304D663893A(a)kitcarson.net> > Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed > > Is there a basic sound tool, in the form of a C-function or Objective- > C method, that causes sound to be emitted from the Mac loudspeaker > (for example, for definiteness, a 440 Hz sine wave, for 1 sec)? > not Darwin, but in Mac OS X: AlertSoundPlay AlertSoundPlayCustomSound if you search for ancient Sound Manager documention, you'll find that you can use the built-in synthesizer to play a 440Hz sine wave. start with this (or google "mac sound manager synthesizer"): <http://www.mactech.com/articles/mactech/Vol.09/09.03/Sound101/index.html> again, not Darwin. for "pure" Darwin, start by reading this: <http://lists.apple.com/archives/Darwinos-users/2002/Mar/msg00190.html> hth, Stuart _______________________________________________ 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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Re: Understanding Kernel Panics - line number
by Alexander v. Below 08 Jul '07

08 Jul '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com This was just covered on darwin-drivers: http://lists.apple.com/archives/darwin-drivers/2007/Jun/msg00054.html On 08.07.2007, at 12:22, Steve Checkoway wrote: On Jul 7, 2007, at 9:37 PM, Erez Kaplan wrote: (gdb) x/i 0x44595faf 0x44595faf <SA_AddAllDomainIPsFoundInMask+97>: cmp $0x1,%al -- Steve Checkoway _______________________________________________ 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/below%40mac.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… The< 97> does not match a line number within the function or within the source. I may be mistaken, but I've always thought that the number corresponded to the address of the instruction. In this case, that cmp instruction is 97 bytes past the address of the SA_AddAllDomainIPsFoundInMask. I don't believe it has any (immediate) correspondence to a line number of the source. This email sent to below(a)mac.com This email sent to site_archiver(a)lists.apple.com

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Re: Understanding Kernel Panics - line number
by Steve Checkoway 08 Jul '07

08 Jul '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Jul 7, 2007, at 9:37 PM, Erez Kaplan wrote: (gdb) x/i 0x44595faf 0x44595faf <SA_AddAllDomainIPsFoundInMask+97>: cmp $0x1,%al -- Steve Checkoway _______________________________________________ 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 The< 97> does not match a line number within the function or within the source. I may be mistaken, but I've always thought that the number corresponded to the address of the instruction. In this case, that cmp instruction is 97 bytes past the address of the SA_AddAllDomainIPsFoundInMask. I don't believe it has any (immediate) correspondence to a line number of the source. smime.p7s

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Bluetooth State
by Andrew James 08 Jul '07

08 Jul '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:mime-version:content-transfer-encoding:message-id:content-type:to:from:subject:date:x-mailer; b=n5zw2h+ORXHdgcQNi3Gv0TQWbD90HenUTBwdZXHznhUHP/OXGuqKNPzPLYKvTVxBPvOJPgk/GXXGb6wxCqpKnHwgOzvPx+p6/vUUw+N3gJ50HoOqXB2qODmsS5q85cSfcpvTaqkxlsYzvkOcVtn+wwFVoiYj3dVdDGQAlHOyAp4= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:mime-version:content-transfer-encoding:message-id:content-type:to:from:subject:date:x-mailer; b=Jsu5qIK88qzMxDTUnzMQmzNYLC6mf9BqVgAeZTr7UiRfoXtA0lbQWDAoZR+OpPJPumfW04Whn+BAjM9BNSH5U4qY2rVeWE6T8dwyjLArw9EcspeZVYt1+VvfLUMGtIQab6DMJYlC7A2SDCci7iY8uGwkXDRRSP37u+UdO06OZaw= Is there a way to control the state of the bluetooth receiver on a machine programatically? I am aiming to make my automated program conserve power by controlling the state of the device when its needed, but i can not find any references to controlling the state of it _______________________________________________ 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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Understanding Kernel Panics - line number
by Erez Kaplan 08 Jul '07

08 Jul '07

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RS: basic sound tool
by Roland Silver 07 Jul '07

07 Jul '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 a basic sound tool, in the form of a C-function or Objective- C method, that causes sound to be emitted from the Mac loudspeaker (for example, for definiteness, a 440 Hz sine wave, for 1 sec)? This email sent to site_archiver(a)lists.apple.com

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Network browser and custom network
by Andre-John Mas 07 Jul '07

07 Jul '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hi, In the Finder you can browse networks, including SMB and AFP. If I wanted to add the ability to list SSH shares discovered via Bonjour, what API should I be looking at to do this? The idea is to list SSH shares discovered via Bonjour and then then have MacFuse handle the actual connection. This could of course extend to other network file systems, such as FTP. Andre _______________________________________________ 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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Re: dup2() Problem
by Mark Rhoads 07 Jul '07

07 Jul '07

site_archiver(a)lists.apple.com Delivered-To: Darwin-dev(a)lists.apple.com Organization: WiredRoads User-agent: Thunderbird 2.0.0.0 (Macintosh/20070326) Hi Norm, int logfd = open(logName, O_WRONLY|O_APPEND|O_CREAT, 0644); dup2(logfd, STDOUT_FILENO); Or are we talking about some shell code passed to system()? What string is being passed to system()? Whether this is a fork/open/dup as explicit code or via a call to system() doesn't matter much. If this is about system(), then I'd even more strongly suspect that memory corruption in the parent process is indirectly causing the dup2 to fail (that is, the parent process memory is corrupted before the 'fork', so the child process has a 'copy' of the parent process memory, warts and all. That dup2() gives an EBADF instead of crashing or succeeding is just a side effect of how things are corrupted (e.g. Justin's "good garbage"). Stop looking at system() and dup2(). Suspect all code in all threads that lead up to the moment of the failed system() or dup2() call. Use a memory debugger. ... So, it looks like you have a good fd to pass to dup2 (0x5), and I know that 0x1 (stdout) is normally a valid fd to use as the 2nd parameter to dup2(). Yet dup2 fails with EBADF. This smells like memory corruption to me. A small test case works fine. There's gotta be some side-effect mucking things up for you before the dup2 call. Does the program test that the 'fork' actually succeeded? Does the problem happen at the first run-thru of this bit of code, or does it work for one or more iterations before dup2 fails? Does this program end up using fork() or vfork()? In this snippet or elsewhere? What is happening between the 'fork' and the dup2()? Try "xx = dup( logfd )". If it fails, then you've either hit some odd limit or there are corrupted in-memory structures in the program's process space (I'm favoring the latter). If it succeeds, well, you'll at least know that your problem is not an fd limit -- still could be process memory corruption. The program's memory could have become corrupted at some 'distance' from where you are actually seeing a symptom, and even long before the call to 'fork'. That dup2() happens to fail is probably something of a red herring, though EBADF for no other good reason can be an indication of corrupted memory. I'd also try a memory debugger. Probably a good thing to do anyway when porting (or developing, or testing, ...) Again, I'm favoring that something in the parent process is corrupting memory in such a way that most things seem to work, but dup2() just happens to fail -- It's probably not a problem with system(), dup2() or their semantics, but more likely that some bit of code has ever so subtly corrupted its own process memory, perhaps quite distant (in time and space) from where the system() or dup2() actually occurs/fails. Best Regards, --Mark Rhoads Thanks Mark. Yes the code below is short snipet. 5738 sh CALL open(0x303f50,0x601,0x1b6) 5738 sh NAMI "testfile" 5738 sh RET open 5 5738 sh CALL dup2(0x5,0x1) 5738 sh RET dup2 -1 errno 9 Bad file descriptor 5738 sh CALL write(0x2,0x1800400,0x28) 5738 sh GIO fd 2 wrote 40 bytes "/bin/sh: line 1: 1: Bad file descriptor " 5738 sh RET write 40/0x28 5738 sh CALL exit(0x1) fstat(fileno(stdout), &sb) _______________________________________________ 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… Wait a second, are we talking about this code snippet: Norm Green wrote: I ran the program under ktrace and see that the system() call causes a call to dup2(), which is failing with errno EBADF: This seems to indicate that all is well with the new file I opened since it returned fd 5. So does that mean something's wrong with stdout? I have put traces in to check the value of fileno(stdout) and it's always 1. Is it worth calling: This email sent to site_archiver(a)lists.apple.com

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