The new SCC Linux source is now posted on our public SVN, I also made tags for linuxkernel and rckos and called them 1.4.0 because this is the SCC Linux that came with sccKit 1.4.0. http://marcbug.scc-dc.com/svn/repository/trunk/
The CustomLinux project on the public SVN contains some newly built Linux objs. Both are eMac and POP-SHM enabled. BuildSCCLinux417_001.obj does not allocate any intial POP-SHM pages. BuildSCCLinux417_002.obj allocates one initial POP-SHM page.
Both have the shared cacheable memory driver. The default linux object has a segmentation fault when you call the flush routine from within RCCE. So if you want to try out the flush routine with 1.4.0, please use these pre-built objs or build your own. See Bug 199 for a discussion of this segmentation fault.
These linux objs were built with the mk_all_minimal script. I got errors when I tried to build with mk_all. (I think this has to do with MCPC configuration and not the new Linux source). This issue is discussed in http://marcbug.scc-dc.com/bugzilla3/show_bug.cgi?id=202