http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55341
--- Comment #7 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> 2012-12-10 12:37:00 UTC --- I'm wondering, is asan not supposed to print out a backtrace with file names and line numbers... right now (trunk of today) I get a trace with just addresses, I somehow have the feeling this was different in an earlier version : gfortran -g -fsanitize=address asan_test.f90 ; ./a.out ================================================================= ==19529== ERROR: AddressSanitizer: stack-buffer-underflow on address 0x7fff503d6a98 at pc 0x400922 bp 0x7fff503d6a60 sp 0x7fff503d6a58 WRITE of size 4 at 0x7fff503d6a98 thread T0 #0 0x400921 (/data/vjoost/gnu/bugs/a.out+0x400921) #1 0x400942 (/data/vjoost/gnu/bugs/a.out+0x400942) #2 0x400978 (/data/vjoost/gnu/bugs/a.out+0x400978) #3 0x351661ecdc (/lib64/libc-2.12.so+0x1ecdc) Address 0x7fff503d6a98 is located at offset 24 in frame <test_asan_01> of T0's stack: This frame has 1 object(s): [32, 72) 'a'