I'm also experiencing run away memory usage with xorg. It slowly creeps up over days. I hadn't noticed any correlation with java apps but it makes sense as I usually keep one java app (xmind) open all the time.
Today, I ran a new java app (nevernote), which drove xorg mem usage from its usual ~500MB to 2.1GB, and yes, that's in the RES column in top and also in gnome-system-monitor. After, I quit nevernote, xorg memory usage crept up to 2.3GB. VIRT reads 2804m, for what it's worth. This install is less than a week old and I haven't done much to it. I use compiz for compositing and haven't reconfigured X, as mentioned above, but will do that now before I reboot. Please let me know what else I can provide. ubuntu 10.10 xorg 1:7.5+6ubuntu3 nvidia 260.19.06 compiz 0.8.6-0ubuntu9.1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/657437 Title: XORG memory usage grows and not reduce -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs