Crashing to desktop, no error message, joining one particular server

Have been playing on a DarkRP server recently, but I began experiencing random crashes to desktop frequently, and now I can’t even join the server (I tried joining a couple of other servers and they were fine, although not DarkRP). I have tried verifying, reinstalling, unsubscribing from addons, deleting all but addons and verifying, deleting addons, verifying all other Source games, etc.

Dump file: http://dumps.metastruct.uk.to/dumper.py?dump=hl2_130914_crash_2013_10_31T17_28_30C0.mdmp

“This can’t possibly work, but I’ll restart my computer”
and then it works
okay then