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Guillaume Nodet commented on SSHD-738: -------------------------------------- I removed the warning. It's true the client is faulty, however, there's really no harm that can be caused at all, as it happens during disconnect, so I don't think it's worth flooding the log. If there was other know bugs in those OpenSSH old versions, it could make sense to add a warning, but I don't think that's the case. In addition, I don't think most SSH clients use the language tag at all, so this really gives us no benefits to not be lenient in this case. > "BufferException: Underflow" warning is frequently reported > ----------------------------------------------------------- > > Key: SSHD-738 > URL: https://issues.apache.org/jira/browse/SSHD-738 > Project: MINA SSHD > Issue Type: Bug > Affects Versions: 1.2.0 > Environment: Gerrit Code Review > Reporter: David Ostrovsky > Assignee: Guillaume Nodet > Labels: monitor > Fix For: 1.7.0 > > > Since upgrade to 1.2.0 Gerrit users report this warning being frequently > reported: > {noformat} > [2017-04-05 09:21:22,246] [sshd-SshServer[3b6c7bae]-nio2-thread-18] WARN > org.apache.sshd.server.session.ServerSessionImpl : > exceptionCaught(ServerSessionImpl[xxxx@/yyyyy:47277])[state=Opened] > BufferException: Underflow > {noformat} > It worth mention, that other SSHD users reported similar problem: > https://jira.atlassian.com/browse/BAM-17773. -- This message was sent by Atlassian JIRA (v6.4.14#64029)