July 2005 - Darwin-kernel - lists.apple.com

Re: Finding Blocks occupied by the file on the volume
by Mike Smith 20 Jul '05

20 Jul '05

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Re: Darwin Kernel for OpenSolaris System on X86 System
by Justin C. Walker 20 Jul '05

20 Jul '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Jul 20, 2005, at 09:04 , Andrew Gallatin wrote: Graham J Lee writes: Justin, while this is only at best marginally related to what I think the OP was saying, I can think of a number of reasons to want to glue Slowlaris and Darwin together: To add 2 more: 1) Dtrace I'm starting on a Solaris driver, and dtrace has already saved me hours of development time that would have been wasted on MacOSX (or linux, to be fair). Cheers, Justin -- Justin C. Walker, Curmudgeon-At-Large Institute for General Semantics -------- Some people have a mental horizon of radius zero, and call it their point of view. -- David Hilbert -------- _______________________________________________ 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.… If I recall correctly, dtrace was a lot of work to get right, but I think it would be a better use of time and effort to duplicate dtrace functionality, rather than play 52-pick up with two kernels. How about that for an Open Darwin "Get High on the Learning Curve" project? This email sent to site_archiver(a)lists.apple.com

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Re: Darwin Kernel for OpenSolaris System on X86 System
by Andrew Gallatin 20 Jul '05

20 Jul '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Graham J Lee writes: > Justin, while this is only at best marginally related to what I think > the OP was saying, I can think of a number of reasons to want to glue > Slowlaris and Darwin together: To add 2 more: 1) Dtrace I'm starting on a Solaris driver, and dtrace has already saved me hours of development time that would have been wasted on MacOSX (or linux, to be fair). Let's say you want to find out what kernel function is returning ENOMEM in response to a high level kpi call from your driver. You can either examine the source, looking for all possible reasons for ENOMEM, setup 2 machine debugging, setup breakpoints, and step through it, which could take hours or days. Or you could setup a dtrace probe, looking for functions that return ENOMEM. This took a few minutes, including googling for a script which did close to what I wanted. This is just one possible usage mode, there are plenty of other, likely better, reasons for it. You can read about dtrace at http://www.sun.com/bigadmin/content/dtrace/ 2) Crash dumps to disk enabled as default. There is absolutely no excuse for a production OS like MacOSX Server not to have crashdumps enabled by default. The current strategy of network dumps is quite a bit better than nothing at all, but it prevents you from enabling them by default. See: http://www.unixville.com/?q=node/view/39&PHPSESSID=07050b290cc37ec15da3f8a0… for a far better justification than I could ever give. There is no reason you'd need to take this from Solaris if there are licensing issues. All the BSDs do this as well, and you all have excellent kernel map walking code already in the kdb network crashdump code. 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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Re: Darwin Kernel for OpenSolaris System on X86 System
by Graham J Lee 20 Jul '05

20 Jul '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On 20 Jul 2005, at 16:38, Justin C. Walker wrote: On Jul 20, 2005, at 02:54 , Graham J Lee wrote: This doesn't involve kernels, AFAICT. [...] The rest seems like more non-kernel issues. Hence the only at best marginal relation :-) Cheers, Graham. _______________________________________________ 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.… Justin, while this is only at best marginally related to what I think the OP was saying, I can think of a number of reasons to want to glue Slowlaris and Darwin together: * launchd or asl on Solaris This email sent to site_archiver(a)lists.apple.com

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Re: Darwin Kernel for OpenSolaris System on X86 System
by Justin C. Walker 20 Jul '05

20 Jul '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com This doesn't involve kernels, AFAICT. Gak! Not Open Transport again? Regards, Justin -- Justin C. Walker, Curmudgeon-At-Large Institute for General Semantics -------- When LuteFisk is outlawed, Only outlaws will have LuteFisk -------- _______________________________________________ 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.… On Jul 20, 2005, at 02:54 , Graham J Lee wrote: On 19 Jul 2005, at 20:58, Justin Walker wrote: On Jul 19, 2005, at 12:48, Gottfried Zojer wrote: Just curious if somebody is out there thinking to merge a darwinOS Kernel to a OpenSolaris kernel on x86 system. you might get more enjoyment from poking yourself in the eye with a sharp stick :-} Last I looked, Solaris was System V.4-based, while Darwin is FreeBSD+Mach based. It's all just software of course, but it seems like a lot of work for little reward. Why are you thinking about this? What, in particular, would get "merged"? Do you mean something like shuffling two decks of cards together, or making a marble cake? Justin, while this is only at best marginally related to what I think the OP was saying, I can think of a number of reasons to want to glue Slowlaris and Darwin together: * launchd or asl on Solaris * Solaris TCP/IP for Darwin The rest seems like more non-kernel issues. In any case, the code's there for those that want to work on it, but, as you say, there doesn't seem to be anything compelling here. This email sent to site_archiver(a)lists.apple.com

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Re: Mac OS 10.4 (Tiger) compilation errors ( GCC v3.3 ) with X Code 2.0 tool
by Andrew Gallatin 20 Jul '05

20 Jul '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Karunakar Reddy G writes: > Hello, > I am also facing problem with "ether_header " structure > I define in this way which works fine on Mac 10.1.3 but not on Mac 10.4 > struct ether_header *hdr; > hdr = mtod(m, struct ether_header *); > It doesnt compile gives error , What error message? Its probably the just that you need the mbuf kpi again. > Any body know , how to use 'ether_header' structures on Mac 10.4 > thanx in advance I use struct ether_header *eh; eh = (struct ether_header *) mbuf_data(m); 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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Re: Mac OS 10.4 (Tiger) compilation errors ( GCC v3.3 ) with X Code 2.0 tool
by Andrew Gallatin 20 Jul '05

20 Jul '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Karunakar Reddy G writes: > thanx Quinn, it helps me alot your points... > one more problem I always encountered problems with 'mbuf' structure. > In my code I defined in this way , works fine with Mac 10.1.3 but gives > error with Mac 10.4 > struct mbuf *pkt; > pkt->m_pkthdr.len = 6; > error: invalid use of undefined type 'struct mbuf' > I heard that 'mbuf ' structure is modified but dont know how this structure > is defined. Mbufs are now opaque and you must use the mbuf kpi to access them. See sys/kpi_mbuf.h in the kernel framework on 10.4. For your example, you'd use: mbuf_pkthdr_setlen(pkt, 6) 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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Re: Mac OS 10.4 (Tiger) compilation errors ( GCC v3.3 ) with X Code 2.0 tool
by Stephane Sudre 20 Jul '05

20 Jul '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On 20 juil. 05, at 14:00, Karunakar Reddy G wrote: _______________________________________________ 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.… thanx Quinn, it helps me alot your points... one more problem I always encountered problems with 'mbuf' structure. In my code I defined in this way , works fine with Mac 10.1.3 but gives error with Mac 10.4 struct mbuf *pkt; pkt->m_pkthdr.len = 6; error: invalid use of undefined type 'struct mbuf' I heard that 'mbuf ' structure is modified but dont know how this structure is defined. Can anybody experienced this kind of problem? mbuf has been replaced by an opaque reference in Mac OS X 10.4: mbuf_t defined in kpi_mbuf.h This also probably means that you need to have 2 versions of your code... This email sent to site_archiver(a)lists.apple.com

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Re: Mac OS 10.4 (Tiger) compilation errors ( GCC v3.3 ) with X Code 2.0 tool
by Karunakar Reddy G 20 Jul '05

20 Jul '05

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Re: Mac OS 10.4 (Tiger) compilation errors ( GCC v3.3 ) with X Code 2.0 tool
by Karunakar Reddy G 20 Jul '05

20 Jul '05

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