January 2005 - Darwin-kernel

struct proc
by Matt Jaffa 14 Jan '05

14 Jan '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hi, Where is the struct proc defined? Thanks, Matt _______________________________________________ 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 know this is a bad question, but I have spent forever for looking for this again. I already know this but can't find the answer anymore. Searched all the Kernel headers, but looks like not hard enough. There use to be a linux header site that helped on this, but can't find it anymore. This email sent to site_archiver(a)lists.apple.com

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Re: NKE Load problems
by Andrew Pinski 13 Jan '05

13 Jan '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Jan 13, 2005, at 6:39 PM, Dean Reece wrote: Matt, Isn't gcc3.5 the same really as gcc4 (or at least that is what I remember from looking at the CVS for gcc3.5 and 4.0). -- Pinski _______________________________________________ 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 symptom matches one I've seen from loading other kexts build with gcc4. You should try building with gcc3.5 or gcc3.3 and see if that helps. If it does help, it is a known issue and is being looked into. If not, please file a bug. This email sent to site_archiver(a)lists.apple.com

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Re: NKE Load problems
by Dean Reece 13 Jan '05

13 Jan '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Matt, On Jan 13, 2005, at 15:21, Matt Jaffa wrote: Hi, I am receiving the following when trying to load my kext: What does it mean, and how do I fix it? _______________________________________________ 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 symptom matches one I've seen from loading other kexts build with gcc4. You should try building with gcc3.5 or gcc3.3 and see if that helps. If it does help, it is a known issue and is being looked into. If not, please file a bug. - Dean kld(): /System/Library/Extensions/mynke.kext/Contents/MacOS/mynke relocation overflow for relocation entry 0 in section (__TEXT,__text) (displacement too large) .... ... ... kld(): /System/Library/Extensions/mynke.kext/Contents/MacOS/mynke relocation overflow for relocation entry 258 in section (__TEXT,__text) (displacement too large) kld(): /System/Library/Extensions/mynke.kext/Contents/MacOS/mynke relocation overflow for relocation entry 263 in section (__TEXT,__text) (displacement too large) kld(): /System/Library/Extensions/mynke.kext/Contents/MacOS/mynke relocation overflow for relocation entry 264 in section (__TEXT,__text) (displacement too large) kld(): /System/Library/Extensions/mynke.kext/Contents/MacOS/mynke relocation overflow for relocation entry 269 in section (__TEXT,__text) (displacement too large) kld(): /System/Library/Extensions/mynke.kext/Contents/MacOS/mynke relocation overflow for relocation entry 274 in section (__TEXT,__text) (displacement too large) kld(): /System/Library/Extensions/mynke.kext/Contents/MacOS/mynke relocation overflow for relocation entry 275 in section (__TEXT,__text) (displacement too large) kld(): /System/Library/Extensions/mynke.kext/Contents/MacOS/mynke relocation overflow for relocation entry 282 in section (__TEXT,__text) (displacement too large) kextload: kld_load_from_memory() failed for module /System/Library/Extensions/mynke.kext/Contents/MacOS/mynke kextload: a link/load error occured for kernel extension /System/Library/Extensions/mynke.kext load failed for extension /System/Library/Extensions/mynke.kext Thanks, Matt _______________________________________________ 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/dean.reece% 40apple.com This email sent to dean.reece(a)apple.com This email sent to site_archiver(a)lists.apple.com

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NKE Load problems
by Matt Jaffa 13 Jan '05

13 Jan '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hi, I am receiving the following when trying to load my kext: What does it mean, and how do I fix it? Thanks, Matt _______________________________________________ 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.… kld(): /System/Library/Extensions/mynke.kext/Contents/MacOS/mynke relocation overflow for relocation entry 0 in section (__TEXT,__text) (displacement too large) .... ... ... kld(): /System/Library/Extensions/mynke.kext/Contents/MacOS/mynke relocation overflow for relocation entry 258 in section (__TEXT,__text) (displacement too large) kld(): /System/Library/Extensions/mynke.kext/Contents/MacOS/mynke relocation overflow for relocation entry 263 in section (__TEXT,__text) (displacement too large) kld(): /System/Library/Extensions/mynke.kext/Contents/MacOS/mynke relocation overflow for relocation entry 264 in section (__TEXT,__text) (displacement too large) kld(): /System/Library/Extensions/mynke.kext/Contents/MacOS/mynke relocation overflow for relocation entry 269 in section (__TEXT,__text) (displacement too large) kld(): /System/Library/Extensions/mynke.kext/Contents/MacOS/mynke relocation overflow for relocation entry 274 in section (__TEXT,__text) (displacement too large) kld(): /System/Library/Extensions/mynke.kext/Contents/MacOS/mynke relocation overflow for relocation entry 275 in section (__TEXT,__text) (displacement too large) kld(): /System/Library/Extensions/mynke.kext/Contents/MacOS/mynke relocation overflow for relocation entry 282 in section (__TEXT,__text) (displacement too large) kextload: kld_load_from_memory() failed for module /System/Library/Extensions/mynke.kext/Contents/MacOS/mynke kextload: a link/load error occured for kernel extension /System/Library/Extensions/mynke.kext load failed for extension /System/Library/Extensions/mynke.kext This email sent to site_archiver(a)lists.apple.com

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Re: is tiger kernel 64-bit?
by Jonas Maebe 11 Jan '05

11 Jan '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On 11 jan 2005, at 11:20, Parav Pandit wrote: 32 bit Similar as Panther, as I understand it. 8.0? (I don't have a Tiger seed) >From the page above: #ifdef __LP64__ int getattrlist(const char*,void*,void*,size_t, unsigned int); #else /*__LP64__*/ int getattrlist(const char*,void*,void*,size_t, unsigned long); #endif Jonas _______________________________________________ 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.… (1) Is Panther 10.3.3 User space is 32-bit or 64-bit or both? (2) Panther 10.3.3 xnu kernel is 32-bit, am I rigtht? The kernel is mostly 32 bit, but its VM system is 64 bit aware, so the kernel can address more than 4GB of ram. (3) Tiger User space is 64-bit by default, but we can compile and run 32-bit code. right? No, it's still 32 bit. Only certain user space libraries (libSystem/libc and a few others) are available as 64 bit variants. None of the GUI libraries (except possibly X11?) are. See http://developer.apple.com/macosx/tiger/64bit.html (4) Tiger kernel space is 32-bit or 64-bit or both? (5) What is the xnu/ darwin version on Tiger? How can I know whether my user space and kernel space is 32-bit or 64-bit? To conditionally compile 64-bit code or define 64-bit APIs, you can use the __LP64__ and __ppc64__ macros. For example, the following shows a function prototype defined two different ways depending on whether the code is being compiled as a 64-bit executable or not: This email sent to site_archiver(a)lists.apple.com

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Re: Top layering of mass storage driver stack
by Dan Markarian 11 Jan '05

11 Jan '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hi Yogesh, If i want to perform the read/write operations on these partitions,does i need to write partition scheme driver or filter scheme driver??? Dan On 5 Jan 2005, at 1:22 AM, Yogesh P wrote: Hi Folks, Suppose, i created the logical partitions or raid partitions using disk-utility which underneath use AppleRAID for the operations. Any pointers,reply certainly helps. Thanks, YOGESH PAHILWAN (SOFTWARE ENGINNER) S P Software Technologies (I) Pvt. Ltd. (An ISO 9001:2000 Company) Pune, Maharashtra, India - 411 004. Tel : 91-20-4006154, 4006983, 4007503. Fax : 91-20-4006153. Email : pahilwan.yogesh(a)spsoftindia.com Visit us at : www.spsoftindia.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.… No. You can read and write to these partitions through /dev/disk* in BSD. I am working on the AppleRAID kext. I know that the AppleRAID kext is placed at the top layer in the mass storage driver stack means at device service layer.Its layering is above block storage driver and below BSD layer. If i want to perform the read/write operations on these partitions,does i need to write partition scheme driver or filter scheme driver??? And at what layer my driver will be reside???Is it reside above the layer of AppleRAID kext or is it placed at the same layer where AppleRAID is???? _______________________________________________ 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/ markarian%40apple.com This email sent to markarian(a)apple.com This email sent to site_archiver(a)lists.apple.com

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is tiger kernel 64-bit?
by Parav Pandit 11 Jan '05

11 Jan '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hi, Please let me know and correct me if I am wrong. (1) Is Panther 10.3.3 User space is 32-bit or 64-bit or both? (2) Panther 10.3.3 xnu kernel is 32-bit, am I rigtht? (3) Tiger User space is 64-bit by default, but we can compile and run 32-bit code. right? (4) Tiger kernel space is 32-bit or 64-bit or both? (5) What is the xnu/ darwin version on Tiger? How can I know whether my user space and kernel space is 32-bit or 64-bit? One way I know is to take sizeeof(void*). Is there any other way to figure out? Regards, Parav Pandit _______________________________________________ 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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AppleRAID kext layering
by Yogesh P 11 Jan '05

11 Jan '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hi Folks, I am working on the AppleRAID kext.I know that the AppleRAID kext is placed at the top layer in the mass storage driver stack means at device service layer.Its layering is above block storage driver and below BSD layer. Suppose, i created the logical partitions or raid partitions using disk-utility which underneath use AppleRAID for the operations. If i want to perform the read/write operations on these partitions,does i need to write partition scheme driver or filter scheme driver??? And at what layer my driver will be reside??? Is it reside above the layer of AppleRAID kext or is it placed at the same layer where AppleRAID is???? Any pointers,reply certainly helps. Thanks, YOGESH PAHILWAN (SOFTWARE ENGINNER) S P Software Technologies (I) Pvt. Ltd. (An ISO 9001:2000 Company) Pune, Maharashtra, India - 411 004. Tel : 91-20-4006154, 4006983, 4007503. Fax : 91-20-4006153. Email : pahilwan.yogesh(a)spsoftindia.com Visit us at : www.spsoftindia.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: Question on VFS-Lock
by Yogesh P 11 Jan '05

11 Jan '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hi Shawn, I am basically looking for the mechanism of locking the I/O's at file system level (VFS level) for a fraction of time so that i can copy out the specific data block for achieving the block level Snapshot on Mac OS X. And after initializing the Meta data for my module we will release the IO (unlock) the file system. The same patch is available in Linux LVM where they support Snapshot after applying the VFS lock Patch. My basic intension is to see if this lock is supported by Mac OS X VFS layer, if not how should we approach to write this VFS lock Patch in MAC OS X Darwin kernel. I am familiar with some part of VFS layer in Darwin kernel of Mac OS X. Thanks in Advance. YOGESH PAHILWAN (SOFTWARE ENGINNER) S P Software Technologies (I) Pvt. Ltd. (An ISO 9001:2000 Company) Pune, Maharashtra, India - 411 004. Tel : 91-20-4006154, 4006983, 4007503. Fax : 91-20-4006153. Email : pahilwan.yogesh(a)spsoftindia.com Visit us at : www.spsoftindia.com On Mon, 2005-01-10 at 22:59, Shawn Erickson wrote: > > On Jan 9, 2005, at 10:06 PM, Yogesh P wrote: > > > Hi Folks, > > > > I am working on the VFS-Lock patch available for linux which is use to > > get the functionality of locking and unlocking the filesystem. > > > > Is anyone is working on to get the same functionality on MAC OS X which > > makes the filesystem lock unlock???? > > > > Is darwin kernel has some kind of mechanism for locking or unlocking > > the > > filesystem??? > > > > Any pointers,reply certainly helps. > > Can you better online what you mean by lock/unlock. Locks out IO, Locks > out fs changes, etc. What is the main goal for this product, what type > of feature are you trying to allow? > > Note that on Mac OS X the swap space is made of files in the boot file > system (by default) and it is dynamic, files can come and go as swap > needs change. > > -Shawn > > _______________________________________________ > 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/shirke.mekhala%40spsof… > > This email sent to shirke.mekhala(a)spsoftindia.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: strange panic, debugging help wanted..
by Andrew Gallatin 10 Jan '05

10 Jan '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Godfrey van der Linden writes: > I'd like to see the assembly that this kernel is running at 0x2CAE8. > I'd be willing to bet an offset from a NULL pointer is being taken and > that is why you are panicing. > > I think the 'r1' panic is a red herring, the first exception state is > 'PC=0x0002CAE8; MSR=0x00001030; DAR=0x000000D4; DSISR=0x40000000; > LR=0x0002 CAD8; R1=0x0CC33DB0; XCP=0x0000000C (0x300 - Data access)' > Indicates that the r1 is valid at the time that the panic is taken. Do > you have a symbolled kernel for the version that is taking the panic. > If you can find out what routine was passed a NULL pointer you may have > a suspect. Unfortunately, the kernel is long gone, as I upgraded to 10.3.7 (crash was with a 10.3.4 kernel). Are you saying that R1 (0x0CC33DB0) might be the text address of the routine which triggered the panic? > > Finally when you see this sort of crash, that is a crash in the kernel > but none of your code is in the backtrace, then I'd suspect a teardown > race of some sort. You or somebody else may be zero-ing a pointer > early, or perhaps you are using a freed data structure. When this > happens you often trash the data that is being resused by someother > parts of the system. > > Hope this helps. > Yes, it does. But I'm still waiting for the panic to re-occur with better debugging infastructure in place.. Thanks, Drew _______________________________________________ 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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