i386/108542: Huge network latencies with 6.2-RELEASE / STABLE

Tue Jan 30 08:20:17 UTC 2007

>Number:         108542
>Category:       i386
>Synopsis:       Huge network latencies with 6.2-RELEASE / STABLE
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Jan 30 08:20:16 GMT 2007
>Closed-Date:
>Last-Modified:
>Originator:     Remy de Ruysscher
>Release:        6.2-RELEASE
>Organization:
>Environment:
FreeBSD kirk.pocketinfo.nl 6.2-RELEASE FreeBSD 6.2-RELEASE #13: Tue Jan 30 06:17:02 CET 2007     root at kirk.pocketinfo.nl:/usr/obj/usr/src/sys/KIRK  i386

>Description:
3 servers (same kernel config and release) connected via a gigabit switch are producing terribly latencies which make the web/database servers unusable.

Name    Mtu Network       Address              Ipkts Ierrs    Opkts Oerrs  Coll
bce0   1500 <Link#1>      00:13:72:f9:9f:df   687773     0   823321     0     0
bce0   1500 fe80:1::213:7 fe80:1::213:72ff:        0     -        2     -     -
bce0   1500 194.109.120   kirk                650883     -   823547     -     -
bce1   1500 <Link#2>      00:13:72:f9:9f:dd  3796651     0  2788790     0     0
bce1   1500 fe80:2::213:7 fe80:2::213:72ff:        0     -        2     -     -
bce1   1500 192.168.10    192.168.10.3       3796631     -  2788778     -     -
lo0   16384 <Link#3>                           44989     0    44989     0     0
lo0   16384 localhost.poc ::1                  40874     -    40874     -     -
lo0   16384 fe80:3::1     fe80:3::1                0     -        0     -     -
lo0   16384 your-net      localhost             3873     -     3873     -     -

192.168.10.2 is a DB server but the traceroute shows incredibly latencies:

kirk.pocketinfo.nl (0.0.0.0)                                                                                           Tue Jan 30 09:12:03 2007
Keys:  Help   Display mode   Restart statistics   Order of fields   quit
                                                                                                       Packets               Pings
 Host                                                                                                Loss%   Snt   Last   Avg  Best  Wrst StDev
 1. 192.168.10.2                                                                                      0.0%    80    4.4  95.6   0.6 1003. 194.5

This happened when upgrading from 6.2-Pre release to 6.2-RELEASE. All servers are affected.
>How-To-Repeat:
Reboot the server and do mtr (mytraceroute) to 192.168.10.2, which is 1 hop away.
>Fix:
Rollback to 6.3-PRE RELEASE? This there a CVS tag for this??
>Release-Note:
>Audit-Trail:
>Unformatted: