Hi, I'm new to this list, but I've searched the archives (a little bit) to find a solution to my problem and haven't found anything. I've an application running on an amd64 machine. This app crashes while allocating memory of size 300: suffix = malloc(sizeof(char) * 300); When run under GDB, I get the following bt: *** glibc detected *** malloc(): memory corruption: 0x00000000005343f0 *** Program received signal SIGABRT, Aborted. 0x0000002a96214de0 in raise () from /lib/libc.so.6 (gdb) where #0 0x0000002a96214de0 in raise () from /lib/libc.so.6 #1 0x0000002a96216290 in abort () from /lib/libc.so.6 #2 0x0000002a9624b06e in __fsetlocking () from /lib/libc.so.6 #3 0x0000002a962518fa in free () from /lib/libc.so.6 #4 0x0000002a96252d4b in malloc () from /lib/libc.so.6 <snipped> Any ideas as to why this could be happening? How can I debug this problem? And why is malloc() calling free()? Any help or pointers would be of great help. Srinidhi. -- ASCII ribbon campaign ( ) B S Srinidhi - against HTML email X http://srinidhi.deeproot.co.in & vCards / \ DeepRoot Linux - : send the line "unsubscribe linux-c-programming" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html