Hi, List, I have been struggling to bring up 2.6.8-rc2 on an Au1100 processor. I am using gcc 3.4.1 which seems to the be source of most of the issues that I have been having. Here is the last issue: - At boot time, I was encountering a fault in slab.c -- ac_data was returning a NULL pointer. But when I put in lots of printk's the problem disappeared. Hmmm.. sound like an optimization issue. Has anyone else seen this? - So I tried lowering the optimization to -O1 by editting the top- level Makefile. Now, to my surprise, I can no longer link the kernel. I get: "fs/built-in.o(.text+0x3a0c4): In function `parse_extended': : undefined reference to `bad_unaligned_access_length'" This repeats several times. I grep'ped through the kernel. I see that bad_unaligned_access_length() is externed in include/asm-mips/unaligned.h. It is also used in the default: case of several inline functions in that same file. It is not referenced or defined anywhere else in the kernel. My hunch is that at -O2 the calls to bad_unaligned_access_length() were optimized away and all is well. But at -O1 they are not. Greg Nutt -- Gregory Nutt <greg.nutt@xxxxxxxxxxx> Cadenux, LLC
