Re: libgcc double-free, backend won't die

Craig James <craig_james@emolecules.com> writes:
> This is driving me crazy.  I have some Postgres C function extensions in a shared library.  They've been working
fine. I upgraded to Fedora Core 6 and gcc4, and now every time psql(1) disconnects from the server, the serverlog gets
thismessage: 
>    *** glibc detected *** postgres: mydb mydb [local] idle: double free or corruption! (!prev): 0x08bfcde8

Have you tried attaching to one of these processes with gdb to see where
it ends up?  Have you checked to see if the processes are becoming
multi-threaded?

            regards, tom lane