Take a alook at the checkcpu() routine in /cpu/mpc8260/cpu.c . Validate that your CPU is correctly being identified, and thus initialized. We had identical symptoms with the 8270. We added the following after the case for the PVR_8260_HIP7: case PVR_8280a_HIP7: case PVR_8280_HIP7: k = 7; printf (CPU_ID_STR " (HiP%d Rev %02x, Mask ", k, rev); break; include/asm-ppc/processor.h #define PVR_8280_HIP7 0x80822013 #define PVR_8280a_HIP7 0x80822014 A.
-----Original Message----- From: [EMAIL PROTECTED] [mailto:linuxppc-embedded-bounces at ozlabs.org] On Behalf Of Nai-Hsien Sent: June 7, 2005 9:11 AM To: linuxppc-embedded at ozlabs.org Subject: MPC8272 runs application with segmentation fault Dear experts, I have two hardware boards, one uses MPC8245 and the other one uses MPC8272. Initially, I use the MPC8245 board to port Linux 2.4.20 and write some applications. I already do a lot of test on the MPC8245 board and all my application programs work fine. After this, I use the same kernel configuration and same file system that are being used by the MPC8245 board to port the whole system to my MPC8272. Now, I can boot the kernel and run busybox well. However, when I run my application programs, I always get segmentation fault. Following is a strace dump. Could anybody give me some idea? Thank you Dennis ==================================================== execve("sbin/console", ["sbin/console"], [/* 6 vars */]) = 0 uname({sys="Linux", node="6200_linux", ...}) = 0 brk(0) = 0x10059134 open("/etc/ld.so.preload", O_RDONLY) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = -1 ENOENT (No such file or directory) open("/lib/libncurses.so.5", O_RDONLY) = 3 read(3, "\177ELF\1\2\1\0\0\0\0\0\0\0\0\0\0\3\0\24\0\0\0\1\0\001"..., 1024) = 1024 fstat64(0x3, 0x7ffff098) = 0 mmap(0xff97000, 362628, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0xff97000 mprotect(0xffd4000, 112772, PROT_NONE) = 0 mmap(0xffd7000, 86016, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0x30000) = 0xffd7000 mmap(0xffec000, 14468, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xffec000 close(3) = 0 open("/lib/libdl.so.2", O_RDONLY) = 3 read(3, "\177ELF\1\2\1\0\0\0\0\0\0\0\0\0\0\3\0\24\0\0\0\1\0\0\34"..., 1024) = 1024 fstat64(0x3, 0x7ffff078) = 0 mmap(0xff74000, 74812, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0xff74000 mprotect(0xff77000, 62524, PROT_NONE) = 0 mmap(0xff84000, 12288, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0xff84000 close(3) = 0 open("/lib/libnsl.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\2\1\0\0\0\0\0\0\0\0\0\0\3\0\24\0\0\0\1\0\0A\274"..., 1024) = 1024 fstat64(0x3, 0x7ffff058) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x30017000 mmap(0xff3e000, 152068, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0xff3e000 mprotect(0xff51000, 74244, PROT_NONE) = 0 mmap(0xff5e000, 12288, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0x10000) = 0xff5e000 mmap(0xff61000, 8708, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xff61000 close(3) = 0 open("/lib/libc.so.6", O_RDONLY) = 3 read(3, "\177ELF\1\2\1\0\0\0\0\0\0\0\0\0\0\3\0\24\0\0\0\1\0\1\322"..., 1024) = 1024 fstat64(0x3, 0x7ffff038) = 0 mmap(0xfddd000, 1379388, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0xfddd000 mprotect(0xff16000, 97340, PROT_NONE) = 0 mmap(0xff1d000, 61440, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0x130000) = 0xff1d000 mmap(0xff2c000, 7228, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xff2c000 close(3) = 0 brk(0) = 0x10059134 brk(0x1005a134) = 0x1005a134 brk(0x1005b000) = 0x1005b000 write(2, "before init_ncurses()\n", 22) = 22 write(2, "before initscr()\n", 17) = 17 access("/usr/share/terminfo/v/vt100", R_OK) = 0 open("/usr/share/terminfo/v/vt100", O_RDONLY) = 3 read(3, "\32\1,\0\25\0\7\0\16\1\3\2", 12) = 12 read(3, "vt100|vt100-am|dec vt100 (w/adva"..., 44) = 44 read(3, "\0\1\0\0\1\0\0\0\0\0\0\0\0\0\1\0\0\0\0\0\1", 21) = 21 read(3, "\0", 1) = 1 read(3, "P\0\10\0\30\0\377\377\377\377\377\377\3\0", 14) = 14 read(3, "\377\377\0\0\2\0\4\0\25\0\32\0&\0.\0\377\377\377\3777\0"..., 540) = 540 read(3, "\7\0\r\0\33[%i%p1%d;%p2%dr\0\33[3g\0\33[H\33[J"..., 515) = 515 read(3, "", 1) = 0 read(3, "", 10) = 0 close(3) = 0 -- SIGSEGV (Segmentation fault) @ 0 (0) --- +++ killed by SIGSEGV +++ Segmentation fault -------------- next part -------------- An HTML attachment was scrubbed... URL: http://ozlabs.org/pipermail/linuxppc-embedded/attachments/20050607/fc5a8c6d/attachment.htm