I'm working on porting Linux to a MIPS based processor whose IP is from
Lexra's LX4189 processor.
I started my work from the linux MIPS port of oss.sgi.com. Right now
the kernel can boot and run some user applications well.
But I met a problem that once a process raises any kind of signal,
kernel will send a SIGILL signal to the process which let the process stop.
I traced the kernel source and found SIGILL is sent by the exception
The problem is very weird because when I change to another crosscompiler
or insert some asserting code to functions in signal.c. The kernel
become unbootable. I hope someone can give me directions to solve this
bug or tell me who already done Linux on Lexra?
toolchain: GCC 3.1 from ftp.cotw.com.
use new IRQ and new timer interface.