On Fri, Jul 01, 2011 at 03:13:17PM -0400, Scott Sipe wrote:
> I'm running 8.2-RELEASE and am having new problems with scp. When scping
> files to a ZFS directory on the FreeBSD server -- most notably large files
> -- the transfer frequently dies after just a few seconds. In my last test, I
> tried to scp an 800mb file to the FreeBSD system and the transfer died after
> 200mb. It completely copied the next 4 times I tried, and then died again on
> the next attempt.
>
> On the client side:
>
> "Connection to home closed by remote host.
> lost connection"
>
> In /var/log/auth.log:
>
> Jul 1 14:54:42 freebsd sshd[18955]: fatal: Write failed: Cannot allocate
> memory
>
> I've never seen this before and have used scp before to transfer large files
> without problems. This computer has been used in production for months and
> has a current uptime of 36 days. I have not been able to notice any problems
> copying files to the server via samba or netatalk, or any problems in
> apache.
>
> Uname:
>
> FreeBSD xeon 8.2-RELEASE FreeBSD 8.2-RELEASE #0: Sat Feb 19 01:02:54 EST
> 2011 root@xeon:/usr/obj/usr/src/sys/GENERIC amd64
>
> I've attached my dmesg and output of vmstat -z.
>
> I have not restarted the sshd daemon or rebooted the computer.
>
> Am glad to provide any other information or test anything else.
>
> {snip vmstat -z and dmesg}
You didn't provide details about your networking setup (rc.conf,
ifconfig -a, etc.). netstat -m would be useful too.
Next, please see this thread circa September 2010, titled "Network
memory allocation failures":
http://lists.freebsd.org/pipermail/freebsd-stable/2010-September/thread.html#58708
The user in that thread is using rsync, which relies on scp by default.
I believe this problem is similar, if not identical, to yours.
--
| Jeremy Chadwick jdc at parodius.com |
| Parodius Networking http://www.parodius.com/ |
| UNIX Systems Administrator Mountain View, CA, US |
| Making life hard for others since 1977. PGP 4BD6C0CB |
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