[Bug 624898] [NEW] ssh client hang for prolonged connections

[Jason Kraftcheck]

Public bug reported:

I'm not sure if this is actually an ssh bug or if it is a bug elsewhere
that only appears when I use ssh.  Some suggestions for diagnosing the
problem would be helpful.

ssh client connections initiated from my laptop to almost every serve I
connect to will hang after 30-60 minutes.  This includes both
interactive sessions and scp of large files.  I attached a debugger to a
hung instance of the ssh client and it appears to be stuck in a syscall:

0x00399422 in __kernel_vsyscall ()
(gdb) where
#0  0x00399422 in __kernel_vsyscall ()
#1  0x0078c93d in ___newselect_nocancel ()
    at ../sysdeps/unix/syscall-template.S:82
#2  0x00ef07ab in ?? ()
#3  0x00ef2d6d in ?? ()
#4  0x00eebd40 in main ()

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: ssh (not installed)
ProcVersionSignature: Ubuntu 2.6.32-24.41-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic i686
Architecture: i386
Date: Thu Aug 26 13:38:00 2010
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: openssh

** Affects: openssh (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 lucid

-- 
ssh client hang for prolonged connections
https://bugs.launchpad.net/bugs/624898
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to openssh in ubuntu.