Has anyone had experiences running RTLinux on PowerPC 405GP? I need your help.
I was trying to get RTLinux 3.1 running on our IBM "Walnut" machine with the 405GP processor. The Walnut was running Hardhat Linux 2.4.2. I downloaded the source code of RTLinux 3.1, there is patch for the standard Kernel 2.4.4 but since I couldn't apply those patches to customized kernel 2.4.2 from MontaVista(lots of duplicates and conflicts), I just ignored the patches and compiled RTLinux as modules(they compile anyway after minor hack). When I installed the modules I got quite a few kernel seg. faults. The first one is when RTLinux trys to overwrite Kernel at KERNELBASE with a jump to its own handling of "Return From Interrupt". My questions are: first,why would I get such a seg. fault? Isn't the code at KERNELBASE(between offset 0 and offset 0x100) useless once the machine finishes booting? Second, what kind of action does RTLinux trys to intercept at KERNELBASE? Does "ret_from_interrupt" actually gets handled at KERNELBASE offset 0? Your help will be greatly appreciated. Brian -- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED] -- For more information on Real-Time Linux see: http://www.rtlinux.org/
