Unfortunately the gdb backtrace does not show enough informationbecause of optimization, I guess. Can you take a backtrace with
optimization disabled binary?
You can obtain this by editing Makefile around line 147.
I edited configure and change every instance of -O2 to -O for postgres and pgpool and added --enable-debug. Here's the new backtrace:
(gdb) bt
#0 0xb75fc346 in ?? () from /lib/tls/i686/nosegneg/libc.so.6
#1 0x0805f342 in pool_flush (cp=0x3) at pool_stream.c:486
#2 0x08052e7b in pool_do_auth (frontend=0x946b778, cp=0x0) at pool_auth.c:222
#3 0x080509a9 in connect_backend (unix_fd=4, inet_fd=5) at child.c:1143
#4 do_child (unix_fd=4, inet_fd=5) at child.c:293
#5 0x0804bbdf in fork_a_child (unix_fd=4, inet_fd=5, id=<value optimized out>) at main.c:1024
#6 0x0804ddef in main (argc=3, argv=0xbfaad2d4) at main.c:514
