Hallo Uli,

Danke for your answer.
I read the StackOverflow thread, but either it is beyond my understanding, either I don't get if I can bypass some checks by setting some parameters. I tried to set some, according to what I read in the thread, but that doesn't change anything.

Maybe you have an additional hint?

Nicolas

Le 22/11/2019 à 16:37, Ulrich Sibiller a écrit :
This is a bug in the Gthumb that gets detected by glibc. You can
suppress this but it would be better to get Gthumb fixed, see
https://stackoverflow.com/questions/18153746/what-is-the-difference-between-glibcs-malloc-check-m-check-action-and-mcheck
.

Uli

On Fri, Nov 22, 2019 at 4:19 PM Nicolas Ecarnot
<nicolas.x...@ecarnot.net> wrote:

Hello,

User since long of x2go, I'm now facing the following issue :

- client host is XUbuntu 19.10, with a 4.1.2.1-2 client
- server host is XUbuntu 19.10, with a 4.1.0.3-4 server

Everything sounds good and I can do basically anything I want (things
are responsive, colours are OK, aso...)

But when running the images viewer "GThumb", the software is not
launching and stops with the following error :



double free or corruption (!prev)
Abandon (core dumped)


Obviously, I made my homeworks and search around for clues. Though I
find many similar cases with people having the same issue, it doesn't
seem specifically related to x2go not gthumb.

BUT...

Yet I send this message here because my target server is also a
workstation I use everyday *not remotely* and on which I can perfectly
run gthumb.

Should I look at some colour depth settings, at missing libraries, or
could anyone lead me to some precise x2go settings I could tweak?

Thank you.

--
Nicolas
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