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Subj:	Re: Ingres & VPA clash -> System hangs ??

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Date: 9 Oct 90 17:15:34 GMT
From: network.ucsd.edu!calmasd!kjb@ucsd.edu  (Ken Brucker)
Organization: Calma - A Division of Prime Computers
Subject: Re: Ingres & VPA clash -> System hangs ??
Message-Id: <1854@calmasd.Prime.COM>
References: <901006153455.000009EA@MARVIN.CTSS.CO.UK>
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In article <901006153455.000009EA@MARVIN.CTSS.CO.UK> VERKADE@CTSS.CO.UK (Herman Verkade) writes:
>
>Is anybody aware of any bugs in VPA that causes it to hold a lock indefinitely?
>
>Is anybody aware of Ingres causing VPA to do this?
>
>Anybody has a patch?
>

There is a bug in VMS 5.2 - 5.3-x when running a cluster environment that could
be causing this problem.  Some changes in 5.2 that were made for dynamic
remastering caused a problem in RMS.  A blocking AST would not get triggered
resulting in a locking user to not dequeue the lock.  And you would then end
up with the chain reaction you describe.

I got the patch as CSCPAT_0158011 from Colorado.

Ken
-- 
** Ken Brucker -- VMS Systems Programmer/Mangler 
** Calma   9805 Scranton Road, San Diego CA 92121-1765  (619)587-3000
** Internet: kjb@calmasd.Prime.COM  UUCP: {decvax,ucbvax}!sdcsvax!calmasd!kjb