i386/88853: SMP system FreeBSD 6.0-STABLE crashed while transferring file via NFS to server xl0

[Dominique Werner]

>Number:         88853
>Category:       i386
>Synopsis:       SMP system FreeBSD 6.0-STABLE crashed while transferring file via NFS to server xl0
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Nov 11 17:40:15 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Dominique Werner
>Release:        FreeBSD 6.0-STABLE
>Organization:
>Environment:
equus% uname -a
FreeBSD equus.unixhome 6.0-STABLE FreeBSD 6.0-STABLE #0: Tue Nov  8 20:33:42 CET 2005     root at equus.unixhome:/usr/obj/usr/src/sys/EQUUS  i386         
>Description:
I tried to copy an iso file using MacOSX's Finder (drag& drop) via NFS to my FreeBSD 6.0-STABLE server when all of a sudden the system stalled and ad6, the main hd out of my raid1 array on an Adaptec AHA1200 was unresponsive, I had to force shutdown the entire system.

This is what I found in messages
Nov 11 19:16:38 equus kernel: xl0: transmission error: 90
Nov 11 19:16:38 equus kernel: xl0: tx underrun, increasing tx start threshold to 120 bytes
Nov 11 19:24:12 equus syslogd: kernel boot file is /boot/kernel/kernel

This never happened to me under FreeBSD 5.4-STABLE

This is a PIII 2 x 933 MHz system, SMP

equus% dmesg | grep CPU
CPU: Intel Pentium III (933.37-MHz 686-class CPU)
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
SMP: AP CPU #1 Launched!

---

I'm updating to the lastest src as we speak.
>How-To-Repeat:
              
>Fix:
              
>Release-Note:
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