August 2007 - Darwin-kernel

Re: Kernel Core Dumps on Intel
by Quinn 09 Aug '07

09 Aug '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com This /is/ no firmware prompt on Intel-based Macintosh computers [1]. S+E -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Relations, Developer Technical Support, Core OS/Hardware At 10:33 +0900 9/8/07, Jeremy Pereira wrote: However, the same set of keys don't seem to work on Intel and I can't find any docs on the Apple web site that tell me how to boot to a firmware prompt. Is there a way? Or if not is there another way to retrieve a mistake of this sort? Astonishingly, 'zapping the PRAM' still works and will get you out of this sort of situation. Hold down command-option-P-R at startup time. The same procedure works on your OF-based machine. [1] As shipped by Apple. You can go grab an EFI shell from various places and install it on your system, but it's not there by default. _______________________________________________ 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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Sending the packets to network
by Rakesh Singhal 09 Aug '07

09 Aug '07

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Re: Kernel Core Dumps on Intel
by Jeremy Pereira 09 Aug '07

09 Aug '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On 8 Aug 2007, at 22:31, Allen Briggs wrote: Does Intel Macs now support Kernel Core Dumps ? (If yes, could we use Technical Note TN2118 to configure the same ?) Yes. I use a process that's at least similar to TN2118 to configure them. I think the only difference is that I use a slightly different boot_args debug value gleaned from various tech notes. I'm currently using: $ nvram boot-args boot-args debug=0x1d44 _panicd_ip=10.0.1.90 Thanks for that, I was just going to ask the exact same question. I have a follow up though. -allen This email sent to adc(a)jeremyp.net _______________________________________________ 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 Wed, Aug 08, 2007 at 06:54:05PM +0530, Arvind Dalvi wrote: Yesterday, I configured the nvram boot-args parameter on a PPC G5 but I made a mistake and the computer was kernel panicing very early in the AppleSMU module as a result. I was able to retrieve the situation by booting to Open Firmware (opt cmd O F + power switch) and setting the nvram parameter there. However, the same set of keys don't seem to work on Intel and I can't find any docs on the Apple web site that tell me how to boot to a firmware prompt. Is there a way? Or if not is there another way to retrieve a mistake of this sort? -- Allen Briggs | http://www.ninthwonder.com/~briggs/ | briggs(a)ninthwonder.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/adc%40jeremyp.net This email sent to site_archiver(a)lists.apple.com

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Re: Kernel Core Dumps on Intel
by Brian Bechtel 08 Aug '07

08 Aug '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(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=jHAlb2tFWBeZbcFtDQt0jkskVvptU20ucx5IHVC3gxjE5yrAj7o8L6r6Qu31TzVlg/FGJAo7EP8WFpvKXyp9grhxRQL539MrZQPO3lM1sogtJ18fGAMBdJ7ML+4ogO4xZ+AoF0XBNIhG1Tel0O0DYu6b3fQv8OeKtU07KBqVD3s= 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=btdgbzW4d0RkY4S56oflTkbhfh7y4lpuG94i7u2fZ/z/Aa/loFyozxB8K76ch55AahsqltkI488+pmampBIU0l8vl7hd6s635yhHfUgQtIbK11XTYUVSlb18WfwcHVg/FEpV5OsI+P0I4KTpcPS30EATQo+TJJrHUuihl8n2Jxg= On 8/8/07, Arvind Dalvi <arvind.p.dalvi.mailinglist(a)gmail.com> wrote: > Hello, > > Does Intel Macs now support Kernel Core Dumps ? (If yes, could we use > Technical Note TN2118 to configure the same ? 10.4.7 and later support Intel kernel core dumps, with the same boot-args settings as on PPC. _______________________________________________ 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: Filtering disk vs. partitions
by Kevin Elliott 08 Aug '07

08 Aug '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com true is (generally) a disk, false is a slice/partition. On Aug 8, 2007, at 11:23 AM, Eric Long wrote: Hi, Is there way to achieve what I'm after here? Thanks in advance, Eric _______________________________________________ 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.… Yes. One of the registry properties on IOMedia objects is "Whole" with a boolean value. Possible Exception: I'd have to do some further testing, but some RAID drivers may show the merged of 2 (or more) disks as whole. I am working on an IOMedia filter. The driver is instantiated for every partition on a disk, but what I'd really prefer is to filter on the disk itself, and not the individual partitions. As far as I can tell, I'm not called for the disk itself, just the partitions. _______________________________________________ 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/kelliott% 40mac.com This email sent to kelliott(a)mac.com This email sent to site_archiver(a)lists.apple.com

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Filtering disk vs. partitions
by Eric Long 08 Aug '07

08 Aug '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Thread-index: AcfZ6UfihqaWZEXcEdy6YwAX8si2KA== Thread-topic: Filtering disk vs. partitions User-agent: Microsoft-Entourage/11.3.6.070618 Hi, I am working on an IOMedia filter. The driver is instantiated for every partition on a disk, but what I'd really prefer is to filter on the disk itself, and not the individual partitions. As far as I can tell, I'm not called for the disk itself, just the partitions. Is there way to achieve what I'm after here? Thanks in advance, Eric _______________________________________________ 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: Kernel Panic during startup on iMac
by Al Ciplickas 08 Aug '07

08 Aug '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=hzQGqo/RzWKBsLGok3ctN8k4eYvjuUk5gVuc/4BsjwmzIRThhEcFueTXti55rMAX; h=Received:In-Reply-To:References:Mime-Version:Content-Type:Message-Id:Cc:Content-Transfer-Encoding:From:Subject:Date:To:X-Mailer:X-ELNK-Trace:X-Originating-IP; -Al- On Aug 8, 2007, at 5:06 AM, Michael Cashwell wrote: On Aug 8, 2007, at 12:39 AM, Al Ciplickas wrote: Good catch, but it could be a bad memory socket instead. Good luck! -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.… Thanks, Mike. That's a good idea. I did it this morning and the system still works fine, so it does point to the memory module. I suppose I could put the suspect one back in and verify that the system goes back to panic mode. It's the first time that I had a memory module go out including 3rd party memory. Just lucky I guess... ps- just tried the bad module and it causes the same panic, so it IS bad. -- next, I removed the memory from the front slot (#0?) and now it appears that system and other programs are running well (though a bit slower in response, as expected). -- conclusion so far: I have a bad memory module. It apparently was not found by the startup tests. Before declaring the module that's out as bad (and buying a replacement) you need to verify that the socket it came out of are OK. The easiest way to do that is to move the module that works to that socket (leaving the back socket empty) and exercising the system. If that module works in both places, then indeed the one you've taken out is bad. If not then you likely have two good memory modules and a bad front socket on the motherboard. (Just to be clear, I don't mean here that the physical socket is necessarily bad. I mean the whole of the socket and the circuitry dedicated to driving it.) A friend had the user-accessible memory socket in a Powerbook up and fail. He didn't do these steps and was really frustrated when a new module wouldn't work and had to be returned. This email sent to site_archiver(a)lists.apple.com

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Re: Kernel Core Dumps on Intel
by Allen Briggs 08 Aug '07

08 Aug '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com User-agent: Mutt/1.5.13 (2006-08-11) On Wed, Aug 08, 2007 at 06:54:05PM +0530, Arvind Dalvi wrote: > Does Intel Macs now support Kernel Core Dumps ? (If yes, could we use > Technical Note TN2118 to configure the same ?) Yes. I use a process that's at least similar to TN2118 to configure them. I think the only difference is that I use a slightly different boot_args debug value gleaned from various tech notes. I'm currently using: $ nvram boot-args boot-args debug=0x1d44 _panicd_ip=10.0.1.90 -allen -- Allen Briggs | http://www.ninthwonder.com/~briggs/ | briggs(a)ninthwonder.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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Kernel Core Dumps on Intel
by Arvind Dalvi 08 Aug '07

08 Aug '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(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:mime-version:content-type; b=Mn+weT0mfSo9djqLthXRAbzkg7uPqgRf8wkiFNN0ZJMlmU7d05FYnDLX+sN2zHCLvB63ZF6S8l8rPmgF+4Fb3t3Ngy4AFjkjGpoj8ld8rj7M7v4qMAIMIp0ydFtORG2pcTu6nx5yG6Uv6UYBTadsyMy43HKU5/QJRcPvgEkQhoo= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:mime-version:content-type; b=n+Fy1h7ADr4svLO22Vxof9KhoT7e61yrHxg3h/1YGgjYWm/3RvWCKedL8bxdtyWvHydndVMXvRwa/ZsA6K4ZKrsUBkj9bNnt1qwIrdZv0JlXNFtzRfWy0ITV3yQRWt9fa1Y8KM+GZ47JUUzgehgwLgpvR3oL3KzV1dKdiMcDLbo= _______________________________________________ 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: Kernel Panic during startup on iMac
by Michael Cashwell 08 Aug '07

08 Aug '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Aug 8, 2007, at 12:39 AM, Al Ciplickas wrote: Good catch, but it could be a bad memory socket instead. Good luck! -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.… -- next, I removed the memory from the front slot (#0?) and now it appears that system and other programs are running well (though a bit slower in response, as expected). -- conclusion so far: I have a bad memory module. It apparently was not found by the startup tests. Before declaring the module that's out as bad (and buying a replacement) you need to verify that the socket it came out of are OK. The easiest way to do that is to move the module that works to that socket (leaving the back socket empty) and exercising the system. If that module works in both places, then indeed the one you've taken out is bad. If not then you likely have two good memory modules and a bad front socket on the motherboard. (Just to be clear, I don't mean here that the physical socket is necessarily bad. I mean the whole of the socket and the circuitry dedicated to driving it.) A friend had the user-accessible memory socket in a Powerbook up and fail. He didn't do these steps and was really frustrated when a new module wouldn't work and had to be returned. This email sent to site_archiver(a)lists.apple.com

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