scp hogs up CPU and cannot be killed
From: Dodier, Robert (Robert_Dodier_at_csgsystems.com)
Date: Mon, 10 Nov 2003 10:17:30 -0700 To: <email@example.com>
I wonder if anyone has seen this problem. I have searched the
web but although I find a few mentions of it, I haven't found
Scp'ing a large file (multi GB) to a Linux RH 8.0 box (8 cpus,
lots of memory, lots of disk space) causes the Linux box to get
into a tizzy: top shows scp using lots of cpu, cpu states
are 50%--75% system, scp cannot be killed by kill -9, and
although the box is alive, it is just crawling along.
Other jobs run very, very slowly. BTW top says scp is
runnable (status R) so it should be killable, but it's not.
The ssh version is at present a custom recompile (sorry, not
my decision) of the OpenBSD version of ssh, but we had this
problem also with the RH 8.0 version of ssh as well,
which was presumably built sometime in 2002.
Is this a known problem in scp or ssh? Does someone -know for sure-
that it can be fixed by installing a recent release? Unfortunately
I'm not in a position to install stuff willy-nilly; I need to
have some solid information to go on in order to get someone
to act on it. Also if you have any idea about how to kill a
process that doesn't want to die, I'd be interested in that too.
Thanks very much for your help! Have a great day,