kern/148361: Kernel Panic, With Faulty Drives

[Marcel Grandemange]

>Number:         148361
>Category:       kern
>Synopsis:       Kernel Panic, With Faulty Drives
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Jul 04 13:00:08 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Marcel Grandemange
>Release:        FreeBSD AMD64 8.1 RC1
>Organization:
E-Soul Technologies
>Environment:
FreeBSD e-soul.co.za 8.1-RC1 FreeBSD 8.1-RC1 #0: Sat Jul  3 22:22:33 SAST 2010     thavinci at e-soul.co.za:/usr/src/sys/amd64/compile/thavinci  amd64

>Description:
When any drive in the system becomes faulty and results in following errors:

Jul  4 12:42:22 e-soul kernel: ad14: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=483277
Jul  4 12:43:26 e-soul kernel: ad14: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=830925
Jul  4 12:43:51 e-soul kernel: ata7: port is not ready (timeout 10000ms) tfd = 00000080
Jul  4 12:43:51 e-soul kernel: ata7: hardware reset timeout
Jul  4 12:43:51 e-soul kernel: unknown: TIMEOUT - FLUSHCACHE48 retrying (1 retry left)

It will cause kernel panic.
>How-To-Repeat:

>Fix:


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