I’m having the exact same issue… I see this issue posted a couple of time in these forums with no answers…
Can some one help with the 2.5 to 2.5.1 database crashing issue?
Note: I did get the upgrade wordpress screen after uploading the 2.5.1 and it seemed to have work like it should.
I wish someone would answer this… I have the same problem after upgrading from 2.5 to 2.5.1 after it came out. So I went back to 2.5 and I have no more issues…
I waited three weeks so maybe it would be sorted out in WP and upgraded again… Immediately , I had the same issues…
I cant save posts ( I get failed to connect to database ) , The database constantly keeps getting disconnected…
Note: I did get the upgrade wordpress screen after uploading the 2.5.1 and it seemed to have work like it should.
I believe this is a bug in WP 2.5.1 ,
I guess I’ll wait till 2.5.2 or better comes out.