http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57637
--- Comment #2 from ktkachov at gcc dot gnu.org --- Thanks, Zhenqiang. For me, it's a segfault in function DGETF2. gdb backtrace: Program received signal SIGSEGV, Segmentation fault. 0x0001d964 in dgetf2_ () (gdb) bt #0 0x0001d964 in dgetf2_ () #1 0x000255a4 in dgetrf_ () #2 0x00015856 in sysnsl_ () #3 0x0001194e in MAIN__ () at galgel.f90:9 Looking further into it, the segfault seems to be from the function idamax that is inlined in dgetf2. Hope this helps, Kyrill