Hi, I'm quoting here Grant's answer:
***************************************** On 4/11/06, Vincent Winstead <vwinstead at yahoo.com> wrote: > > I'm having a real difficulty trying to get linux onto this board. So I'm > finally turning to the community for help. The only people that have > documented their approach to putting open source linux onto the ML310 board > have used bitkeeper to download the kernel for the project, but bitkeeper > isn't used any more is it? I've been going straight to kernel.org and > getting kernels from there and crosscompiling them on my machine to be > transported to the ppc core on the ML310. Is this wrong? Is there a patch > or some kernel source that I don't know about for PPC? Thanks! Are you using 2.4 or 2.6? Support for the ML300 & ML403 is in the mainline 2.6 git tree. As long as you've got an xparameters.h file for your FPGA bitstream, you should be able to port a 2.6 kernel really easily. If you want to use 2.4, you can pull the linuxppc rsync mirror which has ML300 support in it. http://www.penguinppc.org/kernel/ (Look at the very bottom of the page for the RSYNC mirror) Cheers, g. -- Grant Likely, B.Sc. P.Eng. Secret Lab Technologies Ltd. (403) 399-0195 ***************************************************** After changing the xparameters.h, I was able to boot with the 2.6.16.13 kernel, which I got from kernel.org, but then I'm having a "bad page" problem as shown in the output below: loaded at: 00400000 006011A0 board data at: 005FF124 005FF1A0 relocated to: 004051B4 00405230 zimage at: 0040592D 00495B48 initrd at: 00496000 005FEE44 avail ram: 00602000 04000000 Linux/PPC load: console=ttyS0,9600 Uncompressing Linux...done. Now booting the kernel Linux version 2.6.16.13 (root at rgdev) (gcc version 3.4.1) #19 Fri May 5 13:39:53 PHT 2006 Xilinx Virtex-II Pro port Port by MontaVista Software, Inc. (source at mvista.com) Built 1 zonelists Kernel command line: console=ttyS0,9600 Xilinx INTC #0 at 0x41200000 mapped to 0xFDFFE000 PID hash table entries: 512 (order: 9, 8192 bytes) Console: colour dummy device 80x25 Dentry cache hash table entries: 16384 (order: 4, 65536 bytes) Inode-cache hash table entries: 8192 (order: 3, 32768 bytes) Memory: 62060k available (908k kernel code, 364k data, 64k init, 0k highmem) Bad page state in process 'swapper' page:c01539c0 flags:0x00000080 mapping:00000000 mapcount:0 count:1 Trying to fix it up, but a reboot is needed Backtrace: Call Trace: [C012DDF0] [C00094B4] show_stack+0x58/0x180 (unreliable) [C012DE20] [C00452EC] bad_page+0x5c/0xa0 [C012DE40] [C0045DD0] get_page_from_freelist+0x2cc/0x454 [C012DE90] [C0045FAC] __alloc_pages+0x54/0x278 [C012DED0] [C005869C] cache_alloc_refill+0x2e0/0x53c [C012DF10] [C0058398] kmem_cache_alloc+0x50/0x74 [C012DF30] [C00594A8] kmem_cache_create+0x3a0/0x508 [C012DFA0] [C013846C] kmem_cache_init+0x180/0x3a0 [C012DFD0] [C012E5E4] start_kernel+0x138/0x1a4 [C012DFF0] [C000225C] start_here+0x44/0xb0 Now, I tried to debug the functions in the call trace, and it seems that the prep_new_page function calls the bad_page because the test for page_count(page) != 0 is TRUE (count value is 1). I know that the hardware or the memory is working because I have 2.4.20 running. What could probably cause this problem? Is there a patch for ml300 available to fix this? Many thanks!!! * Richard __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
