kern/73375: panic: vinvalbuf: dirty bufs

[Claudio Destro]

>Number:         73375
>Category:       kern
>Synopsis:       panic: vinvalbuf: dirty bufs
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Nov 01 09:50:21 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator:     Claudio Destro
>Release:        5.3-STABLE
>Organization:
>Environment:
FreeBSD vulcan 5.3-STABLE FreeBSD 5.3-STABLE #15: Wed Oct 27 17:31:14 CEST 2004     root@:/mnt/AC26400R/usr.obj/usr/src/sys/VULCAN  i386
>Description:
I get a panic detaching my USB mass storage during final sync,
without previously unmounting it.

I don't know if this is a real problem (since I did not unmount the
USB mass storage), but it leaves my root filesystem unclean.

That's my logs:

(umass detaching logs...)
(...) 1 1 0 0 0 done
No buffers busy after final sync
(da1:umass-sim0:0:0:0): Synchronize cache failed, status == 0x39, scsi status == 0x0
(da1:umass-sim0:0:0:0): removing device entry
panic: vinvalbuf: dirty bufs
Uptime: 1h23m45s
(...)

>How-To-Repeat:
Attach an USB mass storage, mount it, and then reboot or shutdown,
when final syncing detach umass.
>Fix:
      
>Release-Note:
>Audit-Trail:
>Unformatted: