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https://issues.apache.org/jira/browse/SSHD-916?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16848877#comment-16848877
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Roberto Deandrea commented on SSHD-916:
---------------------------------------

Hi Lyor, sorry for the delay...

I let you know before the end of this week if the fix works fine.

Kind regards

Roberto

 

> 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
>         Attachments: spxp.usrdump.9503...@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.9503...@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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