misc/119043: twa hang after heavy disk IO

[Huyue Wu]

>Number:         119043
>Category:       misc
>Synopsis:       twa hang after heavy disk IO
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Dec 26 18:00:02 UTC 2007
>Closed-Date:
>Last-Modified:
>Originator:     Huyue Wu
>Release:        7.0-BETA4 AMD64
>Organization:
>Environment:
FreeBSD ultrax 7.0-BETA4 FreeBSD 7.0-BETA4 #1: Mon Dec 10 15:35:31 CST 2007     root at ultrax:/usr/obj/usr/src/sys/ultrax  amd64
>Description:
I am installed 3Ware 9650SE-8LPML with WD 500G*7 SATA II hard disk, raid 6.
If heavy disk IO, twa got error about this,
twa0: INFO: (0x04: 0x0001): Controller reset occurred: resets=1
twa0: INFO: (0x16: 0x1107): Controller reset done!:  
After this message appear many time, the system hang.
I already upgraded the RAID adapter firmware uo lastest 9.4.2 code set, but not help.
>How-To-Repeat:
Heavy disk read/write IO.
>Fix:


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