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Re: [Bug-apl] WS FULL


From: Dr . Jürgen Sauermann
Subject: Re: [Bug-apl] WS FULL
Date: Wed, 23 Jan 2019 14:07:38 +0100
User-agent: Mozilla/5.0 (X11; Linux i686; rv:52.0) Gecko/20100101 Thunderbird/52.9.1

Hi,

we have learned recently that exception handling might become unreliable if a process approaches
complete memory starvation.

For that reason I had introduced a 100 MByte safety margin that cases WS FULL to be reported
a little earlier than needed. As a consequence if the MemFree: reported by /proc/meminfo is below
100 MByte then you will get a WS FULL right away.

Chances are that after the fix in SVN 1115 the safety margin is no longer needed or can be reduced
significantly. For that reason I have made the safety margin configurable (down to 1 Megabyte)
via ⎕SYL in SVN 1116.

Best regads,
/// Jürgen


On 01/22/2019 09:08 PM, Hudson Flavio Meneses Lacerda wrote:
Hi.


After closing some other programs (== freeing memory), APL worked.

It seems it requires about 100 MiB of free RAM as minimum?

Here I hardly will have that much (hardware: 450MiB of RAM)





)values generates lines like this:

Value #123:   Flags = COMPLETE, ⍴⊏27⊐ ≡1:
SYNTAX ERROR: → in macro ⍎¨





Attached some runs.





.Hudson


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