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I have been a bit suspicious about SELinux myself, the system is running in enforcing mode. So I temporarily changed it to permissive mode, but that had no effect. So this is not an SELinux problem.</div>
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The server is a fairly recent installation and I've deliberately tried to keep it as close as possible to plain RHEL8, with a minimum amount of configuration changes. The only real change made to it is VirtualGL, a package for server-side 3D rendering that
integrates with Thinlinc. But this does not seem like a graphics problem, does it?</div>
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I'll try the new appImage version once it's available.</div>
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Best</div>
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Anders</div>
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<b>Från:</b> Thomas Friedrichsmeier<br>
<b>Skickat:</b> Lördag, 30 juli 2022 17:50<br>
<b>Till:</b> Anders Fridberger<br>
<b>Kopia:</b> rkward-devel@kde.org<br>
<b>Ämne:</b> Re: rkward-devel Digest, Vol 86, Issue 12
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<div class="PlainText">On Sat, 30 Jul 2022 12:27:05 +0000<br>
Anders Fridberger <anders.fridberger@liu.se> wrote:<br>
> The sockets are created OK, with the same permissions as yours<br>
> (srwxrwxr-x. 1 anders anders 0 Jul 30 14:18 rkwardOT1p6oMh). I<br>
> can connect to the rkwardXXXXX socket as well as the rkdXXX one (no<br>
> errors), but the rkdXXX socket is removed fairly soon after it<br>
> appears (presumably when the backend crashes).<br>
<br>
That's an interesting observation, although I am not sure that it would<br>
get us anywhere. Both sockets are actually created by the frontend, and<br>
waiting for the backend to connect. Each would disappear (close), as<br>
soon as the frontend receives a successful connection. Thus, if all<br>
went well, the rkwardXX socket would be expected to disappear within a<br>
fraction of a second, while the rkdXX socket should stay<br>
around until either something is plotted, or the frontend<br>
exits.<br>
<br>
Despite lack of evidence, I still suspect a permission problem. Is<br>
SELinux activated? I have no first hand experience with managing that,<br>
but from my understanding, in this case <br>
<br>
ausearch ausearch -m AVC,USER_AVC,SELINUX_ERR,USER_SELINUX_ERR<br>
-ts recent<br>
<br>
after attempting to start rkward should list a denial, if this is the<br>
problem.<br>
<br>
Are you aware of any other configuration details that might relate?<br>
<br>
Beyond this, I have added a few more lines of debug statements, hoping<br>
to understand better, what's going wrong. Unfortunately, the daily<br>
AppImage build has already started, the addition info would be expected<br>
in build #44 in about 24 hours. (Alternatively, you could build from<br>
git master branch).<br>
<br>
Thanks a lot for your continued help in tracking this down!<br>
<br>
Thomas<br>
<br>
Regards<br>
Thomas<br>
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