kern/90890: Problems with netwrok: vr0: tx shutdown timeout

[Maciej Bogdanski]

>Number:         90890
>Category:       kern
>Synopsis:       Problems with netwrok: vr0: tx shutdown timeout
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Dec 24 22:20:02 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Maciej Bogdanski
>Release:        6.0
>Organization:
private person
>Environment:
6.0-RELEASE FreeBSD 6.0-RELEASE #0: Thu Nov  3 09:36:13 UTC 2005     root at x64.samsco.home:/usr/obj/usr/src/sys/GENERIC  i386
>Description:
 When my network is under heavy load (when i donwload something from lan > 800kb/s) i lose my connection, then,when i run tcpdump it works again.. Dmsg shows something like this:

vr0: tx shutdown timeout
vr0: tx shutdown timeout
vr0: tx shutdown timeout
vr0: tx shutdown timeout
..
vr0: tx shutdown timeout
vr0: tx shutdown timeout
vr0: tx shutdown timeout
vr0: tx shutdown timeout
vr0: tx shutdown timeout
vr0: tx shutdown timeout
vr0: restarting

this is my network card is:

vr0: <VIA VT6102 Rhine II 10/100BaseTX> port 0xe000-0xe0ff mem 0xe2000000-0xe20000ff irq 23 at device 18.0 on pci0

Some people told me that i should not let the driver to autoselect connection type, and select it manualy.

media: Ethernet autoselect (10baseT/UTP)

When i set media to 10baseT/UTP and mediaopt to full-duplex my connection strangly slows down. The highest transfer i can get from LAN is around 40kb/s instead of 800.
Im using mac adress emulation.
        
>How-To-Repeat:
Bring card under heavy load (>= 800-900 kb/s)             
>Fix:
              
>Release-Note:
>Audit-Trail:
>Unformatted: