On Fri, Aug 26, 2011 at 09:51:02PM -0700, Kevin Oberman wrote: > I've run into an odd problem with dismounting file systems on a > Seagate Expansion portable > USB drive. Running 8-stable on an amd64 system and with two FAT32 > (msdosfs) file systems > on the drive. > > The drive is "green" and spins down when idle. If an attempt is made > to shutdown the > system while the drive is spun down, the system goes through the usual > shutdown including > flushing all buffer out to disk, but when the final disk access to > mark the file systems as > clean, the drive never spins up and the system hangs until it is > powered down. I've found no > way to avoid this other then to remember to access the disk and cause > it to spin up before > shutting down. > > If I attempt to unmount the file systems when the drive is shut down. > the same thing > happens, but I can recover as the second file system is still mounted > and an ls(1) to that file > system will cause the disk to spin up and everything is fine. > > This looks like a bug, but I don't see why the unmounting of an > msdosfs system does not > spin up the drive. It's clearly hanging on some operation that is not > spinning up the drive, > but does block. > > Any ideas what is going on? Possible fix? > -- > R. Kevin Oberman, Network Engineer - Retired > E-mail: kob6...@gmail.com
Have a script, which gets run at shutdown as one of the first ones, which would do a ls on the filesystem to wake the drive up. -- Regards, Ulf. --------------------------------------------------------------------- Ulf Zimmermann, 1525 Pacific Ave., Alameda, CA-94501, #: 510-865-0204 You can find my resume at: http://www.Alameda.net/~ulf/resume.html _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
