i386/75441: fxp device timeout

[Peter Trifonov]

>Number:         75441
>Category:       i386
>Synopsis:       fxp device timeout
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Dec 23 18:10:31 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator:     Peter Trifonov
>Release:        5.3
>Organization:
St.Petersburg State Polytechnic University
>Environment:
FreeBSD firewall.xj.dcn 5.3-RELEASE FreeBSD 5.3-RELEASE #0: Sat Dec 18 11:45:40 MSK 2004     bugman at firewall.xj.dcn:/usr/src/sys/i386/compile/FIREWALL  i386
>Description:
      The system is dual processor PentiumPro with both IDE& SCSI hard drives and 3 NICs xl0,fxp0,fxp1
xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=9<RXCSUM,VLAN_MTU>
        inet 10.0.103.3 netmask 0xffffff00 broadcast 10.0.103.255
        inet  xxxxxxxxxx netmask 0xfffffff0 broadcast xxxxxxxxxxx
        ether 00:50:da:39:91:99
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=8<VLAN_MTU>
        inet xxxxxxxxx netmask 0xffffffc0 broadcast xxxxxxxxxxxxxx
        ether 00:60:b0:67:21:6f
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
fxp1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=8<VLAN_MTU>
        inet xxxxxxxxxxxxxxxx netmask 0xfffffffc broadcast xxxxxxxxxxxxxxx
        ether 00:60:b0:67:31:ec
        media: Ethernet autoselect (10baseT/UTP)
        status: active

 From time to time both fxp's SIMULTANEOUSLY stop working and produce messages fxp*: device timeout. 
        After doing ifconfig fxp*  down& up the system said 
        fxp1: SCB timeout: 0x70 0x0 0x50 0x0 
        fxp1: SCB timeout: 0x20 0x0 0x50 0x0  
        fxp0: SCB timeout: 0x70 0x0 0x50 0x0
        fxp1: SCB timeout: 0x20 0x0 0x50 0x0

The system resumes normal operation only after reboot.
xl0 does not experience any problems.



>How-To-Repeat:
      The problem occurs sporadically approximately two times per day. 
>Fix:
      
>Release-Note:
>Audit-Trail:
>Unformatted: