Re: TCP stall between 2.4.14-patched and Win XP ?

From: Marc MERLIN (marc_ln@merlins.org)
Date: Thu Dec 20 2001 - 17:29:17 EST


On Thu, Dec 20, 2001 at 01:05:30PM -0800, Marc MERLIN wrote:
> The XP machine connects to the linux box, packets go back and forth, and
> when the linux machine starts pushing a lot of data back, XP lowers the TCP
> window until the connection stalls.

I should have added more details here.
I know this looks like a classic issue of the client app not reading its
data (netscape mail polling mail over imap in this case).
It's just that the same exact app was working fine on the same mail folders
on non XP machines, and the same netscape had no issues polling mail from
other servers, so I started suspecting something on the TCP layer between
the two OSes

Mika Liljeberg sent me a mail confirming that it really looks like the
client app not reading its data. Of course, I can strace the imap server,
but I don't know how to do that with netscape on XP :-)

Either way, although I can't confirm it for now, I'll assume that something
weird is happening with the app, and that it's indeed responsible for the
stall.

Sorry for the noise.
Marc

-- 
Microsoft is to operating systems & security ....
                                      .... what McDonalds is to gourmet cooking
  
Home page: http://marc.merlins.org/   |   Finger marc_f@merlins.org for PGP key
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This archive was generated by hypermail 2b29 : Sun Dec 23 2001 - 21:00:23 EST