February 2006 - Darwin-kernel

Re: How to create virtual COM port
by Dean Reece 27 Feb '06

27 Feb '06

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How to create virtual COM port
by Pavan Chebbi 27 Feb '06

27 Feb '06

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RE: getting kernel panic
by Priti Rathi 24 Feb '06

24 Feb '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Thread-index: AcY4lcMHEplyOoKiSuKZXyWpCSufkAAWGKqA > > What's even more interesting is the panic log you posted shows that > someone dereferenced a NULL pointer. > > Are you using anything special in the way of USB hardware with this > machine? [>] Yes I am operating on a USB hardware which has disk connected to it. The application identifies this USB device and configures it..That's it. But I am doing it in succession. Regards, Priti The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: getting kernel panic
by Mike Smith 23 Feb '06

23 Feb '06

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Re: getting kernel panic
by William Kucharski 23 Feb '06

23 Feb '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com What's even more interesting is the panic log you posted shows that someone dereferenced a NULL pointer. Are you using anything special in the way of USB hardware with this machine? William Kucharski kucharsk(a)mac.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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getting kernel panic
by Priti Rathi 23 Feb '06

23 Feb '06

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Re: The mistery of the dlil_filter_detach call
by David Gatwood 22 Feb '06

22 Feb '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Feb 22, 2006, at 13:07 PM, ssudre(a)intego.com wrote: Le 21 févr. 06, à 22:17, Vincent Lubet a écrit : /mach_kernel does not have all the symbols, local and debugging symbols are stripped out. That means that some addresses are incorrectly attributed to the nearest global symbol. Instead you should use the kernel with full symbolic information from the appropriate Kernel Debug Kit found at: http://developer.apple.com/sdk/index.html#Kernel I don't wanna be anywhere but... here is the place where my lock is spinning time_t's beginning to race away. The exceptions it's throwing knock me off my feet. You think this code will fly, but the kernel's crashing by again.... —attributed to H. Duff. Indeed, it's not dlil_detach_filter but the next function. This explains a lot about potential mlock issues I saw in the past too. Thoughts? David _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… Ok, to quote the great philosopher H. Duff: "Suddenly, it's clear" Since this comes up so often, I have to ask.... Is there any way that the fully- symboled kernel could become an optional OS installation package (in /mach_kernel.symboled or similiar) so that it could be updated by software update along with OS releases? This email sent to site_archiver(a)lists.apple.com

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Re: The mistery of the dlil_filter_detach call
by Stephane Sudre 22 Feb '06

22 Feb '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Le 21 févr. 06, à 22:17, Vincent Lubet a écrit : On Feb 21, 2006, at 12:38 PM, Stephane Sudre wrote: I'm getting lost. I'm doing the following things to see the symbols: On the OS X version the panic occurred: gdb /mach_kernel set print asm-demangle on x/i the_address Ok, to quote the great philosopher H. Duff: "Suddenly, it's clear" Thanks! _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… Is this incorrect? /mach_kernel does not have all the symbols, local and debugging symbols are stripped out. That means that some addresses are incorrectly attributed to the nearest global symbol. Instead you should use the kernel with full symbolic information from the appropriate Kernel Debug Kit found at: http://developer.apple.com/sdk/index.html#Kernel Indeed, it's not dlil_detach_filter but the next function. This explains a lot about potential mlock issues I saw in the past too. This email sent to site_archiver(a)lists.apple.com

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Re: The mistery of the dlil_filter_detach call
by Vincent Lubet 21 Feb '06

21 Feb '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Feb 21, 2006, at 12:38 PM, Stephane Sudre wrote: I'm getting lost. I'm doing the following things to see the symbols: On the OS X version the panic occurred: gdb /mach_kernel set print asm-demangle on x/i the_address Vincent _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… Is this incorrect? /mach_kernel does not have all the symbols, local and debugging symbols are stripped out. That means that some addresses are incorrectly attributed to the nearest global symbol. Instead you should use the kernel with full symbolic information from the appropriate Kernel Debug Kit found at: http://developer.apple.com/sdk/index.html#Kernel This email sent to site_archiver(a)lists.apple.com

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Re: The mistery of the dlil_filter_detach call
by Stephane Sudre 21 Feb '06

21 Feb '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On mardi, février 21, 2006, at 08:35 PM, Vincent Lubet wrote: On Feb 21, 2006, at 11:00 AM, Stephane Sudre wrote: I'm getting lost. I'm doing the following things to see the symbols: On the OS X version the panic occurred: gdb /mach_kernel set print asm-demangle on x/i the_address Is this incorrect? _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… My question is more related to the fact that, for any 10.4.x version, it seems that the path of the backtrace makes no sense after the address of dlil_detach_filter. That is if you look at the source code of dlil_detach_filter. My point was the backtrace will most often not make sense if you don't use the correct version of the kernel symbol file. This email sent to site_archiver(a)lists.apple.com

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