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Date: Fri, 12 May 2000 19:59:01 -0700 (PDT)
From: gryphon@intech.net
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Subject: kern/18522: device ep0 in 4.0-Release unworkably slow
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>Number:         18522
>Category:       kern
>Synopsis:       device ep0 in 4.0-Release unworkably slow
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri May 12 20:00:00 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator:     Coranth Gryphon
>Release:        4.0-Release
>Organization:
>Environment:
FreeBSD 4.0-Release (GENERIC kernel, and any custom-built kernels)
>Description:
Using the 3Com ethernet port on a Dell XPi Latitude docking station.
Sysinstall reads this as using the "ep0" defice, which works fine on
3.x kernels. However, when using the 4.0-Release kernel, the ethernet
driver is unworkably slow. Traceroute and netstat show the interface and
other hosts on the same subnet, but ping usually just hangs (times out).
On the few cases where ping does return a results, the result is always
multi-second, cycling down with a pattern of: 7070ms, 6060ms, 5050ms,
4040ms, 3030ms, 2020ms, 1010ms -- then hangs. However, the same hardware
and network (and config) works consistently and cleanly using either
the 3.2 or 3.4 kernels.
>How-To-Repeat:
The hang (packet time-out) is consistent. The few times the packets
return are sporadic. 
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted:


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