Bug 2149

Summary:	ssh client shows connection closed by remote host
Product:	Portable OpenSSH	Reporter:	fanzhiqiang <zq_fan>
Component:	sshd	Assignee:	Assigned to nobody <unassigned-bugs>
Status:	CLOSED WORKSFORME
Severity:	major	CC:	djm
Priority:	P5
Version:	6.0p1
Hardware:	PPC
OS:	Linux

Description fanzhiqiang 2013-09-09 04:00:52 AEST

sshd server environment: montavista linux with openssh 6.0(openssl 0.9.8)
when i connect the sshd server, it prints "connection closed by remote host". When i login the system from com port, there are many "sshd -R" processes which process state is D state(means blocked in the kernel state).
when i read the code: when client prints "connection closed by remote host", it means client can not read the version string from the remote server. The read function returns an EPIPE errorcode.
Is this a known problem? how can i fix it?

Comment 1 Damien Miller 2013-09-19 10:45:22 AEST

processes stuck in 'D' state are often the result of waiting for an unreachable NFS server or kernel bugs. If you are not using NFS then check dmesg for signs of problems.

Comment 2 Damien Miller 2013-10-24 10:33:59 AEDT

In any case, we'll need a full debug trace from both the client and the server to debug this.

Comment 3 Damien Miller 2014-07-03 16:21:05 AEST

8 months with no followup == no bug

Comment 4 Damien Miller 2015-08-11 23:03:10 AEST

Set all RESOLVED bugs to CLOSED with release of OpenSSH 7.1