[SOLVED] Lazarus crash after installing LNet
lazarus / 38-Networking and Web Programming

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lennit · 2015-12-04 17:20

Hello,

I just had a very interesting occurance while installing the LNet
package. First I put it on one machine, running Win 7, without any
problems, I even ran some tests there.
Next, I installed on another Win 7 machine and that led to a total
crash of Lazarus. It couldn't load at all and kept 4 lazarus.exe
processes open in Task Manager after a restart of the computer - and I
don't have Lazarus in the start up list. Even uninstalling didn't
help, neither endless pressing of End Process/ End Process Tree.
Finally I went in Safe mode and removed it the cruel way.
After that I downloaded Lazarus again and installed it. This time I
installed the LNet first, just to be sure it won't interfere with
something else (stupid I know, but better be safe than sorry). Exactly
the same problem happened. Before I do back to Safe mode, what could
have caused that failure, taking the fact that both machines run Win 7
32bit, with similar Intel processors, same RAM and so on...

P.S. By the way at the moment my RAM usage is unbelievably high, 46%,
with no applications running, apart from and antivirus and those 3
lazarus.exe.

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lennit · 2015-12-04 18:14

UPDATE: After removing Lazarus once more, I tried the compiled version
of one simple application using LNet on that second computer. It was
working on computer #1, but at attempting to start it on computer #2 I
got the same problem - 3 processes project1.exe in Task Manager and no
actual application running. I have the Client.connect and so on
functions at button.onClick so it crashed without even getting to
them.
I guess it's a Windows problem and my system needs to be
reinstalled... Though, I am not sure where exactly is the problem.

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Marq01 · 2015-12-07 21:25

I have the some problem but I am unable to pinpoint the culprit.
Suddenly Lazarus doens not start anymore. I rolled back the last
system update and installed Lazarus again and it worked (6/12).
Today (7/12) no go again no Lazarus.
What to do?

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marcov · 2015-12-07 21:59

Quote from: lennit on December 04, 2015, 06:20:30 pm
P.S. By the way at the moment my RAM usage is unbelievably high, 46%,
with no applications running, apart from and antivirus and those 3
lazarus.exe.

Well, there is your hint. Put Lazarus + its projects directories in
the excludes of your antivirus.

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Deepaak · 2015-12-08 02:50

which antivirus solution are you using.

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linnemann · 2015-12-08 06:25

THIS -> Quotewhich antivirus solution are you using.
I've been using Avast and it has become increasingly more strict about
running files.

I see the same 3 processes running and nothing ever happens.

This is not only for Lazarus or FPC compiled programs, but also from
other sources.

The fix is to go under "file protection" in Avast and under the
exclude list add the dir to where you want to run your program from.
You can also add the specific exe file to the exclude list to make it
a little more secure.

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lennit · 2015-12-08 09:37

Thank you all!
Yes, the culprit computer #2 has Avast, while computer #1 doesn't...
A simple deactivation of the shields now let everything run smoothly.
I'll have to check with different systems now to see if I'll have
problems with clients' settings. Thank you again!

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Marq01 · 2015-12-08 18:55

Thank you for pointing out.
Avast was too strict and with an exclusing rull, Lazarus worked again.