amd64/111337: The system freezes when large file is transferred over the network

[Kris Kennaway]

The following reply was made to PR amd64/111337; it has been noted by GNATS.

From: Kris Kennaway <kris at obsecurity.org>
To: Victor <victor at nett.ca>
Cc: freebsd-gnats-submit at FreeBSD.org
Subject: Re: amd64/111337: The system freezes when large file is transferred over the network
Date: Sat, 7 Apr 2007 06:08:12 -0400

 On Fri, Apr 06, 2007 at 11:22:35PM +0000, Victor wrote:
 
 > When copying ~>10MB files over the network, the system freezes occasionally; for files >100MB freezes almost always; no warning messages; 
 > observed with scp, samba, and postgres connection requiring transfer of >2M records; systems on the other side were WinXP, Win2003, and Linux;
 > 
 > Hardware used is Asus M2V motherboard with amd64 dual core processor; Attansic 1GB network card working in ndis mode and 3Com 3c905B-TX network cards.
 > This behavior occurs for both interfaces; also with Attansic disabled and other 3Com interface used instead;
 > The motherboard is new, Adaptec RAID controller was moved from an older system working with freebsd 6; did not have any problems before;
 
 Please configure the debugger, then when the hang occurs, break to it
 and obtain a crashdump.  This is all explained in the chapter on
 kernel debugging in the developers handbook.
 
 Kris