Comment Apple Nvidia failures! - kernel NVChannel(GL) (Score 1) 310
Note that Apple's MacBooks, MacBook Pros and desktops are all experiencing a high rate of kernel exceptions that cause the machine to halt.
http://discussions.apple.com/thread.jspa?threadID=1065674&tstart=0
Apple denies that a problem exists. If you have problems post to the Apple forum. For the search engines here's what the kernel exception looks like.
7/31/08 3:01:50 PM kernel NVChannel(GL): Graphics channel timeout!
7/31/08 3:01:50 PM kernel NVChannel(GL): Graphics channel exception! status = 0xffff info32 = 0xd = GR: SW Notify Error
7/31/08 3:01:50 PM kernel 0000000c
7/31/08 3:01:50 PM kernel 00200000 00008297 0000047c 00000000
7/31/08 3:01:50 PM kernel 00000486 00001310 00000000 00000003
7/31/08 3:01:50 PM kernel 00000000 00000000 00000002
7/31/08 3:01:50 PM kernel 0000000c
7/31/08 3:01:50 PM kernel 00200000 00008297 0000047c 00000000
7/31/08 3:01:50 PM kernel 00000486 00001310 00000000 00000003
7/31/08 3:01:50 PM kernel 00000000 00000000 00000002
7/31/08 3:02:02 PM kernel NVChannel(GL): Graphics channel timeout!
7/31/08 3:02:09 PM kernel NVChannel(GL): Graphics channel exception! status = 0xffff info32 = 0xd = GR: SW Notify Error
7/31/08 3:02:09 PM kernel 0000000c
7/31/08 3:02:09 PM kernel 00200000 00008297 0000047c 00000000
7/31/08 3:02:09 PM kernel 00000486 00001b0c 1000f010 00000003
7/31/08 3:02:09 PM kernel 00000000 00000000 00000011
7/31/08 3:03:00 PM com.apple.launchctl.System[2] fsck_hfs: Volume is journaled. No checking performed.