[root@eco ~]# ltrace perl -MCPAN -e shell
__libc_start_main(0x8049278, 4, 0xbfffe644, 0x804a55c, 0x804a5b0 <unfinished ...>
signal(8, 0x1)                                                        = NULL
{ lots of stuff} 

cpan shell -- CPAN exploration and modules installation (v1.7601)
ReadLine support enabled

cpan> q
<... perl_run resumed> )                                              = 0
perl_destruct(0x804bc10, 0x80493b8, 4, 0xbfffe644, 0Lockfile removed.
*** glibc detected *** double free or corruption: 0x08610b28 ***
 <unfinished ...>
--- SIGABRT (Aborted) ---
+++ killed by SIGABRT +++
[root@eco ~]#