Hi,
after upgrading a system from 2.6.19.2 to 2.6.21.1 access to that
system via "ssh" has stopped. The ssh-clients accessing the 2.6.21.1
box just hang and cannot even be killed.
The upgraded system has a RHEL4U3 user-space. 2.6.21.1 configuration
was derived from 2.6.19.2. Both configs are attached.
Any ideas would be highly welcome. Please CC me, as I am not
subscribed.
Thanks
Martin
------------------------------------------------------
Martin Knoblauch
email: k n o b i AT knobisoft DOT de
www: http://www.knobisoft.de
> Hi,
>
> after upgrading a system from 2.6.19.2 to 2.6.21.1 access to that
> system via "ssh" has stopped. The ssh-clients accessing the 2.6.21.1
> box just hang and cannot even be killed.
>
> The upgraded system has a RHEL4U3 user-space. 2.6.21.1 configuration
> was derived from 2.6.19.2. Both configs are attached.
>
> Any ideas would be highly welcome. Please CC me, as I am not
> subscribed.
apparently I was not careful in selecting the default answers to make
oldconfig. After some experimenting I have now a working 2.6.21.1
config. Not sure (and not enough time) to find out which parameter
caused the problems with ssh. The new config is attached.
Thanks
Martin
------------------------------------------------------
Martin Knoblauch
email: k n o b i AT knobisoft DOT de
www: http://www.knobisoft.de
On Thu, May 10, 2007 at 11:02:39AM -0700, Martin Knoblauch wrote:
> > after upgrading a system from 2.6.19.2 to 2.6.21.1 access to that
> > system via "ssh" has stopped. The ssh-clients accessing the 2.6.21.1
> > box just hang and cannot even be killed.
> >
> > The upgraded system has a RHEL4U3 user-space. 2.6.21.1 configuration
> > was derived from 2.6.19.2. Both configs are attached.
> >
> > Any ideas would be highly welcome. Please CC me, as I am not
> > subscribed.
>
> apparently I was not careful in selecting the default answers to make
> oldconfig. After some experimenting I have now a working 2.6.21.1
> config. Not sure (and not enough time) to find out which parameter
> caused the problems with ssh. The new config is attached.
CONFIG_SYSFS_DEPRECATED=y
Alexey, who lost half of today fighting exactly same symptoms
sigh...
Alexey Dobriyan wrote:
> On Thu, May 10, 2007 at 11:02:39AM -0700, Martin Knoblauch wrote:
>>> after upgrading a system from 2.6.19.2 to 2.6.21.1 access to that
>>> system via "ssh" has stopped. The ssh-clients accessing the 2.6.21.1
>>> box just hang and cannot even be killed.
[]
> CONFIG_SYSFS_DEPRECATED=y
>
> Alexey, who lost half of today fighting exactly same symptoms
Hmm. I wonder where the problem is. What does sshd do with sysfs?
Here, the kernel has CONFIG_SYSFS_DEPRECATED=n, and I haven't noticied
any problems.
Thanks.
/mjt