Description:
since i upgraded today with pacman -Syu i got in /var/cron.log something like this:
Dec 16 21:39:50 soho fcron[25382]: Could not init PAM account management for '/home/solstice/bin/rrd_traffic.pl': Module is unknown
Dec 16 21:39:50 soho fcron[4552]: read_write_pipe(): read/write returned 0: retrying... (size: 4, size_processed: 0, num_retry: 1): Success
Dec 16 21:39:50 soho fcron[4552]: read_write_pipe(): read/write returned 0: retrying... (size: 4, size_processed: 0, num_retry: 2): Success
Dec 16 21:39:51 soho fcron[4552]: read_write_pipe(): read/write returned 0: retrying... (size: 4, size_processed: 0, num_retry: 3): Success
Dec 16 21:39:52 soho fcron[4552]: Could not read job pid because of closed pipe: setting it to -1

i think it's linked to the glibc upgrade but not sure.
here is the list of package upgraded:
glibc (2.8-3 -> 2.9-2)
binutils (2.18-9 -> 2.19-1)
bison (2.3-4 -> 2.4.1-1)
devilspie (0.22-2 -> 0.22-3)
dhcpcd (4.0.4-1 -> 4.0.7-1)
gcc-libs (4.3.2-1 -> 4.3.2-2)
kernel-headers (2.6.26.3-1 -> 2.6.27.6-2)

may be a simple recompile against latest glibc might cure this ?
or it's a problem with pam package ?