Subject: Re: More data shift-report
From: Christopher Orth (corth@budoe.bu.edu)
Date: Thu Sep 23 1999 - 12:29:03 EDT
> (2) Stopmaster
> In some runs (for example, 18294) there are many (30-40) fake hits
> on cross-uVAX (SM2/3 and SM4/5) events
> During run 18303, there was 1 event that SM4 STPM gave no-Qs.
>
I would have a look at signals coming in from the CSPAM on uvax 2. The
CSPAM/HIPT/FMT is the only thing plugged into the Stop Master that crosses
uvax boundaries. Even the Streamer WFD signal on uvax 1/3 are missing the
Streamer modules that span two microvaxes.
Unless you are also seeing the problem on single microvax events, I would
guess something funny is coming from the CSPAM. Of course the Stop Master
flakiness often defies all guessing.
Chris
>
> (4) WFDs
> During run 18303, evt. 280, SM3, CH30 & CH31 gave the "usual" bogus
> disc. bit and timeword problem. During the same run, there was 1
> 5C74 and 1 5C54 (VME/READ and VME/WRITE) errors. Could it be the
> event that also had the no-Qs from the SM4 STPM ??
>
Grrrr.
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