Red Hat Bugzilla – Bug 197510
internal compiler error: Segmentation fault (with -O3 -fPIC)
Last modified: 2007-11-30 17:07:26 EST
Description of problem: GCC 3.4 segfaults randomly on compiling a large tree of C files. Version-Release number of selected component (if applicable): version gcc 3.4.3 20041212 (Red Hat 3.4.3-9.EL4) How reproducible: fuzzy. (tried about 8 times) fails 90% on random files while building the whole tree with 'make'. fails 0% when compiling single files step by step, by hand. Steps to Reproduce: 1. gcc -m32 -c -g -O3 -ansi -pedantic -Wall -Wpointer-arith -Wundef -I../inc -fPIC foobar.c Actual results: foobar.c:100: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://bugzilla.redhat.com/bugzilla> for instructions. The bug is not reproducible, so it is likely a hardware or OS problem. Expected results: no output, foobar.c compiled into foobar.o Additional info: The line number showed by the error message seems to be always an end of function block. Compiling still fails randomly with -02.
Note: Something completely crazy is that.. if i slow down compilaton by adding sleeps in the Makefile and not redirect stderr/out to a file, GCC works rather good and do not segfault. Maybe it is pure co-incidence.. but that works! 8-]
This is a typical sign of a hardware problem, be it bad memory, CPU cooling problems (overheating) or other issues. If this bug was in gcc, gcc would manage to reproduce it 3 times in a row (as the gcc driver attempts to do), the above message means that it couldn't be reproduced.