s390 2.6.18.2 debian build failure

[maximilian attems <maks@sternwelten.at>]

hello,

could you guys please look at the build failure:
-- snipp
AS      arch/s390/lib/uaccess.o
  CC      lib/kernel_lock.o
  LD      drivers/s390/scsi/built-in.o
arch/s390/lib/uaccess.S: Assembler messages:
arch/s390/lib/uaccess.S:44: Error: Unrecognized opcode: `lgr'
arch/s390/lib/uaccess.S:47: Error: bad expression
arch/s390/lib/uaccess.S:47: Error: syntax error; missing ')' after base register
arch/s390/lib/uaccess.S:47: Error: syntax error; expected ,
arch/s390/lib/uaccess.S:47: Error: bad expression
arch/s390/lib/uaccess.S:47: Error: syntax error; missing ')' after base register
arch/s390/lib/uaccess.S:47: Error: junk at end of line: `0(%2)'
arch/s390/lib/uaccess.S:48: Error: bad expression
arch/s390/lib/uaccess.S:48: Error: syntax error; missing ')' after base register
arch/s390/lib/uaccess.S:48: Error: syntax error; expected ,
arch/s390/lib/uaccess.S:48: Error: bad expression
arch/s390/lib/uaccess.S:48: Error: syntax error; missing ')' after base register
arch/s390/lib/uaccess.S:48: Error: junk at end of line: `0(%2)'
arch/s390/lib/uaccess.S:50: Error: Unrecognized opcode: `ahji'
make[5]: *** [arch/s390/lib/uaccess.o] Error 1
make[4]: *** [arch/s390/lib] Error 2
--
see full log 
-> http://stats.buildserver.net/fetch.php?&pkg=linux-2.6&ver=2.6.18-4snapshot.7687&arch=s390&stamp=1162597427&file=log&as=raw

is there a fix known for that?
thanks

-- 
maks