osTicket v1.10 (stable) and Maintenance Release v1.9.15 are now available! Go get it now
Is xcache supported with osTticket? I've installed php5-xcache on my dev appliance because of Bolt CMS and osTicket have problem with Apache2:
[core:notice] [pid XXXX] AH00052: child pid XXXX exit signal Segmentation fault (11)
osTicket v1.10 (901e5ea)
AFAIK xcache can't be disabled per site, it was my first thought how to solve this problem.