Problems unmounting/fssyncking extern UFS filesystem

[Kris Kennaway]

On Sat, Nov 25, 2006 at 05:08:03PM +0100, O. Hartmann wrote:
> A while ago since now I receive kernel messages like this in FreeBSD
> 6.2-PRE/AMD64:
> 
> fsync: giving up on dirty
> 0xffffff000362c7c0: tag devfs, type VCHR
>     usecount 1, writecount 0, refcount 325 mountedhere 0xffffff00504d8400
>     flags ()
>     v_object 0xffffff00013c80e0 ref 0 pages 1286
>      lock type devfs: EXCL (count 1) by thread 0xffffff0050287260 (pid
> 14109)
>         dev ufs/BACKUP
> 
> Filesystem is an external USB attached SATA HD, ohci() driven (due to
> ehci() is not working stable and properly on FreeBSD 6.2).
> 
> Filesystem is mounted via amd() and there via the'script' option in
> amd() due to problems of the amd() mounting process recognizing UFS
> filesystems. After 30 seconds of inactivity the filesystems gets
> dismounted. This worked quite well in the past, but now I see this
> kernel error messages.
> 
> Before doing a PR, I would like to serious ask whether this is an issue
> or not.

It's not a serious issue, AFAIK.

Kris
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