BUG #7670: BUG #7545: Unresponsive server with error log reporting: "poll() failed: Invalid argument"

The following bug has been logged on the website:

Bug reference:      7670
Logged by:          Igor
Email address:      igorya.inscriptio@gmail.com
PostgreSQL version: 9.2.1
Operating system:   FreeBSD 9.0
Description:        =


The same a BUG as 7545.

Pgsql compiled from FreeBSD ports with options:

_OPTIONS_READ=3Dpostgresql-server-9.2.1
_FILE_COMPLETE_OPTIONS_LIST=3D NLS DTRACE PAM LDAP MIT_KRB5 HEIMDAL_KRB5
GSSAPI OPTIMIZED_CFLAGS XML TZDATA DEBUG ICU INTDATE SSL
OPTIONS_FILE_SET+=3DNLS
OPTIONS_FILE_UNSET+=3DDTRACE
OPTIONS_FILE_UNSET+=3DPAM
OPTIONS_FILE_UNSET+=3DLDAP
OPTIONS_FILE_UNSET+=3DMIT_KRB5
OPTIONS_FILE_UNSET+=3DHEIMDAL_KRB5
OPTIONS_FILE_UNSET+=3DGSSAPI
OPTIONS_FILE_UNSET+=3DOPTIMIZED_CFLAGS
OPTIONS_FILE_SET+=3DXML
OPTIONS_FILE_SET+=3DTZDATA
OPTIONS_FILE_UNSET+=3DDEBUG
OPTIONS_FILE_UNSET+=3DICU
OPTIONS_FILE_SET+=3DINTDATE
OPTIONS_FILE_SET+=3DSSL