What is the Block ID shown by ps/pstat?

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#2597

From: David Brown
Date: Thu, 02 May 1991 20:35

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What is the meaning of the Block ID value, shown for each thread by PS or
PSTAT?  Is it valid for two threads (in separate processes) to have the
same block ID?

We are tracking down a problem where a thread blocks forever on a
semaphore, even though the timeout value is only 200ms.  We have
noticed when this happens, the thread has the same block ID as
another thread in another process.  Is this significant, or mere
co-incidence?

---
David C. Brown		|  uunet!mnetor!motto!dave
Motorola Canada, Ltd.	|  416-499-1441 ext 3708
Communications Division	|  "Of course I'm above average!  Who isn't?"

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!helios.physics.utoronto.ca!ists!yunexus!motto!dave
From: dave@motto.UUCP (David Brown)
Newsgroups: comp.os.os2.programmer
Subject: What is the Block ID shown by ps/pstat?
Message-ID: <111@motto.UUCP>
Date: 2 May 91 20:35:19 GMT
Reply-To: dave@motto.UUCP (David Brown)
Organization: Motorola Canada Ltd., Communications Division
Lines: 14