From: "Steven Levine" <ecs-isp@2rosenthals.com>
Message-ID: <68e712f7.22.mr2ice.fgrirsq@earthlink.net>
Date: Wed, 08 Oct 2025 17:42:15 -0800
To: "eCS ISP Mailing List" <ecs-isp@2rosenthals.com>
In-Reply-To: <list-14390617@2rosenthals.com>
Subject: Re: [eCS-ISP] Weasel 3.08

In <list-14390617@2rosenthals.com>, on 10/08/25
   at 12:07 PM, "Doug Bissett" <ecs-isp@2rosenthals.com> said:

Hi Doug,

>>Offhand, it looks like weasel ran out of heap memory and weasel did not
>>catch the allocation failure and the resulting null pointer. One
>>interesting feature of the modula-2 runtime is that the heap size is fixed
>>when the binaries are built.  This means that weasel can run out of heap
>>space while there are still large amounts of OS/2 address space available.

>Since I am the only user, I would find that theory to be unlikely.

I understand that you are the only user.  However, threads use address
space, even if they are doing nothing.  A thread that is processing a
message is going to use more, but that's expected.

With the addition of DKIM and TLS support the per thread memory usage has
increased a bit.  A thread count that was OK in older Weasel versions
might be too much under some conditions in 3.08.

IAC, I took another look at the errinfo.$$$ and this changed the results
of my analysis.

Your trap occurred while processing an SMTP AUTH command and it looks like
a defect in the semaphore handling logic.  I'll explain what I think I am
seeing to Peter, when he returns.

>I
>should mention that the client, and server, are connected by a gigabit
>LAN, which may have something to do with it.

Unlikely.  This does not look like a data rate issue.

>The bad part is, that it did not terminate, so it was not restarted
>automatically.

This is another feature of the Modula-2 runtime.  This kind of exception
restarts the failing thread, but this typically is not sufficient get keep
weasel working properly.

Steven

-- 
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"Steven Levine" <steve53@earthlink.net>  Warp/DIY/BlueLion etc.
www.scoug.com www.arcanoae.com www.warpcave.com
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