Toshiba JMR 3927 working setup?

[Gregor Waltz <gregor.waltz@raritan.com>]

I have been working on a JMR 3927 based system for a number of years. 
For all of that time, we have been running:
binutils 2.11.90.0.1
gcc 2.95.3
glibc 2.2.1
linux 2.4.12


We want to update to a 2.6 kernel, recent build tools, and saner system 
libraries. Although, it seems that the JMR 3927 is still technically 
supported, I have not found any info on whether anybody is still running 
Linux on it and what combination of software they are using. Any idea?
Is there a combination of software versions that are known to work on 
this hardware?


I have used crosstool 0.43 to build:
binutils 2.15
gcc 3.4.5
glibc 2.3.6

I cannot get these kernels to build:
linux-2.6.13
linux-2.6.15
linux-2.6.16.57
linux-2.6.17.14
linux-2.6.9

My colleague and I have built these:
linux-2.6.21.7
linux-2.6.23.9
linux-2.6.23.12

However, they all yield a TLBL exception similar to the following:

Exception! EPC=80056eb4 CAUSE=30000008(TLBL)
80056eb4 8ce4000c lw      a0,12(a3)                         # 0xc

Each build has different exception values. The values are the same each 
attempt with the same build.

Is this a problem in the kernel code or the build tools?
Any ideas on how to make it run?

Using the recently built tools, I am currently trying to build the 
2.4.12 kernel that is known to work, which is proving difficult. If I 
can get it to build, I am hoping to see whether the tools are able to 
build a functioning kernel.

Thanks