On Thu, Apr 28, 2016 at 10:46:31AM +1000, luv-main wrote:
I've got a Linux system running remotely that has
a strange TCP problem, when
it sends (not receives) a large packet the connection hangs. For example if I
ssh in and run commands with small amounts of output everything is fine, but if
I run "ls -l /" then the connection hangs forever.
My first thought was PMTU discovery, but "ping -M want -s 1400 188.8.131.52" works
without any problems and also setting the MTU on the only Ethernet device to
unusually low values (I tried as low as 400 bytes) didn't make any difference.
Any ideas as to what I should try next?
The system in question is a fairly standard AMD64 desktop PC running
Start a tcpdump to a file before issue ls -l.
Suspect you will see packet not being acknowledged, likely due to faulty
Cheers ... Duncan.