January 2009 - Darwin-kernel

Re:Re: How to contitnule this kind of kernel debug -----Does large memory affects?
by searockcliff 19 Jan '09

19 Jan '09

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Re: How to contitnule this kind of kernel debug -----Does large memory affects?
by Michael Smith 19 Jan '09

19 Jan '09

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Jan 18, 2009, at 7:28 PM, searockcliff wrote: I find the line of code near the panic is memcpy(). But the parameters are fine. So my question is: Can the Mac OS X kernel NOT handle large memory (>2GB) well? Ask yourself this simple question: See above. = Mike _______________________________________________ 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.… One important thing: The kernel panic only occurs on Mac Pro with memory larger than 2GB, like 3GB, 4GB,9GB and so on. If I reduce the memory used to 2GB by boot-args, the kernel panic disappears. Of all the folks writing code for MacOS X, are you *really* the only one that has discovered this mysterious flaw? Or the memcpy() function fails sometime on large memory? This email sent to site_archiver(a)lists.apple.com

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Re:Re: How to contitnule this kind of kernel debug -----Does large memory affects?
by searockcliff 19 Jan '09

19 Jan '09

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Re: KAUTH_FILEOP_EXEC & KAUTH_VNODE_EXECUTE freeze
by Michael Smith 17 Jan '09

17 Jan '09

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KAUTH_FILEOP_EXEC & KAUTH_VNODE_EXECUTE freeze
by Liviu Andron 17 Jan '09

17 Jan '09

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Re: How to contitnule this kind of kernel debug
by Michael Smith 13 Jan '09

13 Jan '09

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com 在2009-01-12，"William Kucharski" <kucharsk(a)mac.com> 写道： > >On Jan 12, 2009, at 8:32 AM, searockcliff wrote: > >> But why the address of the symbol IOUSBBus::IOUSBBus is 0? >> Address 0 seems unaccessible to the CPU. > >Anything from a bug to improper address resolution. > >Remember also that when debugging modules using GDB you have to specify >an address at which the module was loaded using kextload. > > William Kucharski > > _______________________________________________ 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: Notification about a shutdown
by Michael Smith 13 Jan '09

13 Jan '09

site_archiver(a)lists.apple.com Delivered-To: Darwin-kernel(a)lists.apple.com On Jan 12, 2009, at 8:35 AM, Alexander Obuschenko wrote: This is just another reason why you should not do this. = Mike _______________________________________________ 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.… I'm developing an IOKit kext (my kext's class is derived directly from the IOService) that opens some files (vnode_open(...)) on the root filesystem. These files must be closed (vnode_close(...)) before the system tries to unmount the root volume (if these files are not closed an unmount will fail). If you want to participate in the lifecycle of things like applications, you should be an application. This email sent to site_archiver(a)lists.apple.com

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Re:Re: How to contitnule this kind of kernel debug
by searockcliff 13 Jan '09

13 Jan '09

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Notification about a shutdown
by Alexander Obuschenko 12 Jan '09

12 Jan '09

site_archiver(a)lists.apple.com Delivered-To: Darwin-kernel(a)lists.apple.com Thanks in advance. _______________________________________________ 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.… Hi, I'm developing an IOKit kext (my kext's class is derived directly from the IOService) that opens some files (vnode_open(...)) on the root filesystem. These files must be closed (vnode_close(...)) before the system tries to unmount the root volume (if these files are not closed an unmount will fail). Is there any way to receive notification about an impending shutdown or restart before an unmount of the root volume? This email sent to site_archiver(a)lists.apple.com

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Re: How to contitnule this kind of kernel debug
by William Kucharski 12 Jan '09

12 Jan '09

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Jan 12, 2009, at 8:32 AM, searockcliff wrote: But why the address of the symbol IOUSBBus::IOUSBBus is 0? Address 0 seems unaccessible to the CPU. Anything from a bug to improper address resolution. Remember also that when debugging modules using GDB you have to specify an address at which the module was loaded using kextload. William Kucharski _______________________________________________ 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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