site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com On Oct 9, 2004, at 6:57 AM, Parav Pandit wrote: Let me give you more idea about my driver during loading phase: It does the following steps in sequence: David _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.a... It first enables the memory mapped io for PCI card's register file.( I have 256 registers) Enables the PCI bus mastering, disables the Option ROM on the card. ( I have to do that) Some memory mapped read/write operation on the PCI card to reset the card and processor on the Card. All memory allocation goes here. I can see IOLog message printed here. (Up to here- all works fine) After this message I get this kernel panic on pmap_unnest. If you have your driver initialization stop right here, do you still get a panic? This email sent to site_archiver@lists.apple.com