Vast numbers of execution regressions on trunk? (i686-pc-linux-gnu)

[Brooks Moses]

I'm getting the following results on a just-updated (as of this morning) 
trunk on i686-pc-linux-gnu:

                 === gfortran Summary ===

# of expected passes            13066
# of unexpected failures        2176
# of expected failures          7
# of unsupported tests          16
/home/brooks/gcc-trunk/build/gcc/testsuite/gfortran/../../gfortran 
version 4.3.0 20061126 (experimental)

So far as I can tell, these are all execution errors, and are occurring 
at all levels of optimization for the tests for which they occur.  The 
particular errors seem to vary:

~/test> more helloworld.f90
program helloworld
   write(*,*) "Hello, world!"
end
~/test> ../bin-trunk/bin/gfortran helloworld.f90 -o helloworld
~/test> ./helloworld
At line 2 of file helloworld.f90
Fortran runtime error: End of record

~/test> ../bin-trunk/bin/gfortran PR19872.f -o PR19872
~/test> ./PR19872
Segmentation fault

Any ideas what's up with this?  I don't see anything similar on 
gcc-testresults....

- Brooks