expect memory leak by using -re

Brought to you by: andreas_kupries, hobbs, libes, pyssling

#13 expect memory leak by using -re

Milestone: None

Status: open

Owner: Nils Carlson

Labels: None

Priority: 5

Updated: 2019-10-18

Created: 2011-05-06

Creator: Oleksiy Kebkal

Private: No

subsequent run of the mem-test (see attachment) shows, that the memory consumptions rapidly increases in time:

ps -eo vsize,command|grep mem-test

Discussion

Oleksiy Kebkal - 2011-05-06

Testcase

mem-test.tcl

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Oleksiy Kebkal - 2011-05-06

Solution

gate_patch

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Oleksiy Kebkal - 2011-05-07

assigned_to: nobody --> andreas_kupries
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Nathaniel Filardo - 2018-02-10

Any possibility of getting this issue resolved? I cannot attest that gate_patch is correct, but it solves the immediate problem I have when running a long-running -re-heavy process under expect. As it stands I have to cap the process's memory and restart it when it takes up too much, which is irritating, to say the least.

Thanks.
--nwf;

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Nils Carlson - 2018-02-24

Hi, sorry for the delay. I'm looking into this now.

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Nils Carlson - 2018-02-24

assigned_to: Andreas Kupries --> Nils Carlson

Group: -->
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Nils Carlson - 2018-02-24

Ok, I've managed to sort of reproduce this. expect eats up available memory, but actually seems to manage steady memory use if forced to do so by putting it in a cgroup. I will have a look at the patch tomorrow I hope. I see it involves refcounts which is a tricky area.

Cheers,
Nils

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ramok - 2019-10-15

any news about this issue?

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Nils Carlson - 2019-10-18

I had a look at it, I'm unsure the patch fixes it. I will try to re-verify it again against the latest tcl.

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