ports/130928: Sendmail blocks shmget, affects gstreamer and other applications.

[Brodey Dover]

>Number:         130928
>Category:       ports
>Synopsis:       Sendmail blocks shmget, affects gstreamer and other applications.
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Jan 24 06:00:01 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator:     Brodey Dover
>Release:        7.1 i386, RELEASE
>Organization:
None.
>Environment:
FreeBSD BrodeyBSD.mshome 7.1-RELEASE FreeBSD 7.1-RELEASE #0: Thu Jan  1 14:37:25 UTC 2009     root at logan.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386

>Description:
Without sendmail_enable="NONE" and using gnome 2.24, there is a difficult issue receiving shared memory segments reliably from the available address space. Applications such as gstreamer/totem are affected notably, however, shmget fails on an increased basis (as opposed to never failing) when logged into gnome.


>How-To-Repeat:
keymap="us.iso"
linux_enable="YES"
moused_enable="NO"
sshd_enable="YES"
gnome_enable="YES"
dbus_enable="YES"
hald_enable="YES"
apache_enable="YES"
sendmail_enable="NO"

Install gnome, do not disable sendmail, launch video that requires a particular amount of shared memory...larger/high res videos with totem or gstreamer. Or, a text file that would require a non-trivial amount of memory to write() or fwrite() to a file or other IPC.
>Fix:
Disable Sendmail.

>Release-Note:
>Audit-Trail:
>Unformatted: