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Date: Sat, 16 Oct 2010 17:48:54 -0700
From: Stephen Hemminger <shemminger@vyatta.com>
To: linux-kernel@vger.kernel.org
Subject: Random compiler errors
Message-ID: <20101016174854.4b8eec07@s6510>
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Not sure why this is happening, but lately when building kernels
I am getting non-reproducible cases of gcc failure. There are no
messages in system log. Cosmic rays? Bad memory?

  CC      arch/x86/kernel/xsave.o
  CC      arch/x86/kernel/ptrace.o
arch/x86/kernel/ptrace.c:1416: internal compiler error: Bus error
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.4/README.Bugs> for instructions.
make[2]: *** [arch/x86/kernel/ptrace.o] Error 1
make[1]: *** [arch/x86/kernel] Error 2
make: *** [arch/x86] Error 2

$ make
  CHK     include/linux/version.h
  CHK     include/generated/utsrelease.h
  CALL    scripts/checksyscalls.sh
  CHK     include/generated/compile.h
  CC      arch/x86/kernel/ptrace.o
  CC      arch/x86/kernel/tls.o
  CC      arch/x86/kernel/step.o
  CC      arch/x86/kernel/tboot.o