BUG #7545: Unresponsive server with error log reporting: "poll() failed: Invalid argument"

The following bug has been logged on the website:

Bug reference:      7545
Logged by:          Len Tanaka
Email address:      tanakalen@gmail.com
PostgreSQL version: 9.2.0
Operating system:   Mac OS X 10.6.8
Description:        =


Multiple log files with same error repeated:
poll() failed: Invalid argument

Prior to error, in user account in user table doing an insert that has not
failed in past. Unresponsive thereafter. Unable to shutdown postmaster.

configure:
./configure --with-includes=3D/sw/include --with-libraries=3D/sw/lib --with=
-perl
--with-python --with-openssl --with-bonjour --with-pam --with-krb5
--with-ldap --enable-thread-safety --with-libxml --with-libxslt
--enable-dtrace

make check passed all tests.

Thanks for any help, reverted to 9.1.5 and no similar problem.

Len