On Sat, May 03, 2014 at 08:57:26PM -0700, Grant wrote: > > I can push fine over ssh but pulling via rsync or scp always stalls > > at about the same point which must be between 26MB and 52MB. I can > > pull via netcat just fine. I've tried compiling HPN out of the > > install on both the client and server and I've tried -C on the > > client with the same result. I'm on Gentoo. Any ideas? > > I should have said I'm on openssh-6.6_p1-r1. > > - Grant Hi. First off, the HPN patches will not be supported here so I recommend doing all further debugging on this issue with a pristine OpenSSH. Now, you mentioned you backed out HPN and the problem remains, so I'll assume it's not HPN related. The first thing that comes to mind is you're over-taxing Linux's selective ack's. Try disabling with: # echo 0 > /proc/sys/net/ipv4/tcp_sack If that doesn't help, let's start getting more info, maybe some packet logs around hang time and client-side and server-side logs. --mancha
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