kernel compile message

[Anatoly Pugachev]

Hello!

Doing kernel testing, occasionally I started to get messages:

mator at ttip:~/linux-2.6$ make -j olddefconfig; nice make -j20 && nice
make -j20 modules
#
# configuration written to .config
#
  SYNC    include/config/auto.conf.cmd
make[1]: /bin/sh: Bad address
  UPD     include/generated/compile.h
  UPD     include/config/kernel.release
  UPD     include/generated/utsrelease.h


It is not always "bad address" is shown, next time i run "make
olddefconfig" it does not shows, but sometimes it shows... How do i
debug this ?

Thanks