site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=URKRvqgt48FEb9jA65sXGmEZydJ0yCP2KymFq3dfx0hFnJnoMt851phQR/+Ehyab9HC6MT74RnWYmehPZB4v/2o5T5v2hfWoWRYRZKwwcQYCFswhaTUbdlmXeGqVGkd2ZeW5PWiasQo8awI4o5mRt6u8TnDGK+f3pPGP+tDELo8= On 2/15/06, Tor Andre Myrvoll <myrvoll@iet.ntnu.no> wrote:
The problem is that if I let the program use 6-7 GB out of my total of 8 GB, the machine will eventually crash (see an example of a crash- dump below. The cpu causing the panic varies from time to time). Note that the machine is not swapping when these crashes occur.
Now, I would be willing to blame this on bad memory, but the machine runs weeks on end performing other heavy computational tasks (although in 32-bit mode). The same problem also occurs on a separate dual G5 with 8 GB of memory.
panic(cpu 2 caller 0x000A8D80): Uncorrectable machine check: pc = FFFFFFFFFFFF8260, msr = 900000000004F030, dsisr = 00200000, dar = 00000000B0011C00
Your RAM is incompatible with your machine, or you have a bad RAM DIMM. Run the Apple Hardware Test which came with the machine. In 32-bit mode, your application can only access 4GB of RAM. In 64-bit mode, it's accessing previously unused RAM; accessing that RAM is causing the machine check panic. RAM specifications for the PowerMac G5 machines can be found at <http://docs.info.apple.com/article.html?artnum=86414> and <http://developer.apple.com/documentation/Hardware/Developer_Notes/Macintosh_CPUs-G5/PowerMacG5/4Expansion/chapter_5_section_2.html> _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.appl... This email sent to site_archiver@lists.apple.com