Using a host system of Linux 2.6.8.1, binutils version 2.16 and the aforementioned GCC, I have observed the following gcc segmentation faults:
util-linux-2.12q: -pipe -O2 -mtune=i486 -fomit-frame-pointer (defaults) fdiskbsdlabel.c: In function 'bselect' (void): fdiskbsdlabel.c: 164: internal compiler error: Segmentation fault sfdisk.c: In function 'do_fdisk (static void)': sfdisk.c:3006: internal compiler error: Segmentation fault I have also found that many variations of '-march=pentium4 -OX' segfault when compiling different instantiations of quotearg. For example: patch-2.5.9: quotearg.c: In function 'quotearg_char' quotearg.c:619: internal compiler error: Segmentation fault when -O3 was used, but worked fine with a -O2 optimization. (I realize that optimizations greater than -O2 are risky but I didn't expect the compiler to choke with a segmentation fault). I marked this as critical because it causes a seg fault and thought that someone might want to know. Sean McLinden Allegheny County Health Department -- Summary: gcc 4.1.0 20050522 segfaults (internal compiler error) on various GNU/Linux builds Product: gcc Version: 4.1.0 Status: UNCONFIRMED Severity: critical Priority: P2 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: mclinden at informed dot net CC: gcc-bugs at gcc dot gnu dot org GCC build triplet: i686-pc-linux GCC host triplet: i686-pc-linux GCC target triplet: i696-pc-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21807