Re: Another rsync over ssh hang (repeatable, with 2.4.1 on both ends)

[Russell King <rmk@arm.linux.org.uk>]

On Thu, Mar 01, 2001 at 04:41:01PM -0800, Scott Laird wrote:
> I have a fairly repeatable rsync over ssh stall that I'm seeing between
> two Linux boxes, both running identical 2.4.1 kernels.  The stall is
> fairly easy to repeat in our environment -- it can happen up to several
> times per minute, and usually happens at least once per minute.  It
> doesn't really seem to be data-sensitive.  The stall will last until the
> session times out *unless* I take one of two steps to "unstall" it.  The
> easiest way to do this is to run 'strace -p $PID' against the sending ssh
> process.  As soon as the strace is started, rsync starts working again,
> but will stall again (even with strace still running) after a short period
> of time.
>...
> According to 'ps l', the ssh process is waiting in 'sock_wait_for_wmem'.

I've also reported this recently, and got told that it was because I was
running 2.2.15pre13 on one end.  Thanks for confirming that 2.2.15pre13
is not the cause.

--
Russell King (rmk@arm.linux.org.uk)                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html