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Posted to dev@mina.apache.org by "Goldstein Lyor (JIRA)" <ji...@apache.org> on 2019/06/02 08:01:00 UTC
[jira] [Resolved] (SSHD-916) Followup of SSHD-912 Review usages of
AbstractCloseable#lock and constrain them only to actually needed ones
[ https://issues.apache.org/jira/browse/SSHD-916?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Goldstein Lyor resolved SSHD-916.
---------------------------------
Resolution: Fixed
Fix Version/s: 2.3.0
> Followup of SSHD-912 Review usages of AbstractCloseable#lock and constrain them only to actually needed ones
> ------------------------------------------------------------------------------------------------------------
>
> Key: SSHD-916
> URL: https://issues.apache.org/jira/browse/SSHD-916
> Project: MINA SSHD
> Issue Type: Bug
> Affects Versions: 2.2.0
> Reporter: Roberto Deandrea
> Assignee: Goldstein Lyor
> Priority: Major
> Fix For: 2.3.0
>
> Attachments: spxp.usrdump.9503290@AIX72.DMZ.20190510114505768.log
>
>
> Hi Lyor,
> Yesterday I said you that no deadlock occurred with the new code changes, but I spoke too early.... :(
> I found a third thread deadlock on SSH client running our long run test always during client/server disconnection.
>
> The deadlock is as follows :
> Thread #22175 name: sshd-SshClient[ad946082]-nio2-thread-2
> — org.apache.sshd.common.session.helpers.AbstractSession.doWritePacket(AbstractSession.java:873) WAITFOR(encodedLock)
> ................
> — org.apache.sshd.common.session.helpers.AbstractSession.handleMessage(AbstractSession.java:362) LOCKED(sessionLock)
>
> Thread #22180 name: sshd-SshClient[ad946082]-nio2-thread-7
> — org.apache.sshd.client.session.ClientSessionImpl.signalAuthFailure(ClientSessionImpl.java:151) WAITFOR(sessionLock)
> .................
> — org.apache.sshd.common.session.helpers.AbstractSession.doWritePacket(AbstractSession.java:876) LOCKED(encodedLock)
>
> Attached you can find a full thread dump regarding the new deadlock. (see file spxp.usrdump.9503290@AIX72.DMZ.20190510114505768.log)
> Let me know if you prefer open a new ticket and troubleshoot this issue.
>
> Kind Regards
> Roberto Deandrea
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