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https://issues.apache.org/jira/browse/GUACAMOLE-1140?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Kruse updated GUACAMOLE-1140:
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Attachment: core.lzma
> guacd segfaults with shared rdp sessions
> ----------------------------------------
>
> Key: GUACAMOLE-1140
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-1140
> Project: Guacamole
> Issue Type: Bug
> Components: guacd, guacd-docker
> Affects Versions: 1.2.0
> Reporter: Thomas Kruse
> Priority: Major
> Attachments: core.lzma
>
>
> I am running guacd from docker on an Ubuntu 20.04 host.
> Connections to guacd are from a custom backend using the official
> guacamole-common 1.1.0 maven artifact with a websocket.
> To demonstrate stuff (teaching) multiple connections (10-12) are opened as
> shared sessions with the read-only property set after a leading session is
> opened and the connection id is propagated.
> The shared connections are all opened simultaneously - and closed (more or
> less) simultaneously, often together with the leading session.
> Most of the time it works flawlessly, until guacd segfaults.
> {code:java}
> [499569.970852] guacd[13354]: segfault at 0 ip 00007f8bbb1d5810 sp
> 00007f8b42483bc0 error 4 in libguac.so.17.1.0[7f8bbb1d0000+a000]
> [504671.630985] guacd[5546]: segfault at 0 ip 00007f8bb957eb1a sp
> 00007f8bb37fdbe0 error 4 in libguac-client-rdp.so.0.0.0[7f8bb9569000+18000]
> [504791.134857] guacd[6317]: segfault at 18 ip 00007f8bbade56c0 sp
> 00007f8b91ffac18 error 4 in libpthread-2.28.so[7f8bbade1000+f000] {code}
>
> After guacd recovers everything works again like a charm.
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