Lockup happens again. It must be avast related, as this time I can see AvastSvc.exe consumed 25% of CPU (1 of 4 cores).
I made a process dump so I uploaded it to avast ftp.
Filenames:
20151014-NON-KernelDump.7Z
20151015-NON-AvastSvc.7z
First one is from yesterday's lockup (Kernel dump), second one is today's dump of AvastSvc.exe.
Support package id: WNBZ5
Hope this helps.