[Gems-users] LogTM bug: no reset on overflow bit!

[郭锐 <timmyguo@xxxxxxxxxxxxxxxx>]

I ran into a protocol problem recently, and find that the overflow bit
doesn't get cleared properly at transaction commit. This bug exists in both
of the MOESI and the MESI version of the LogTM protocol. The GEMS version I
use is v1.4.

A possible fix to this bug is just move the overflow bit from the cache
controller to the TransactionManager. Because there is no special cache
request to cache controller whenever a transaction is to be committed.

G.R.