lltdio.sys (Link Layer Topology) BAD_POOL_CALLER

Hey Guys,

I've just had a BSOD in Vista Ultimate, with an error message of
BAD_POOL_CALLER. After analyzing the error log, I've found out that it was
caused by a file called lltdio.sys, which is apparently a built in Vista
driver for Link-Layer Topology Mapper I/O.

I was streaming a video to my 360 at the time, using Transcode 360. Does
anyone have any idea why this file may have failed and given me a
BAD_POOL_CALLER error?

Thanks,