On Thu, Nov 26, 2020 at 04:55:46PM +0000, Graham Perrin wrote: > On 25/11/2020 17:35, Graham Perrin wrote: > > ??? > > > root@momh167-gjp4-8570p:~ # zpool export Transcend > > > cannot unmount '/Volumes/t500': umount failed > > > root@momh167-gjp4-8570p:~ # umount /Volumes/t500 > > > umount: unmount of /Volumes/t500 failed: Device busy > > > root@momh167-gjp4-8570p:~ # lsof /Volumes/t500/ > > > root@momh167-gjp4-8570p:~ # > > > > > > ---- > > > > > > When this last occurred, I could export the pool after signing out > > > from KDE. > > > > > The problem seemed to be consistently reproducible but (fingers crossed) > > no problem yesterday or today. > > > > Previously: most often using OpenZFS in base. > > > > Now using OpenZFS from ports, with r367936. > > > > If the problem recurs: is it _ever_ sane to get nothing listed by lsof > > for a volume that can not be unmounted? > > I spoke too soon, the problem recurred this afternoon: > > root@mowa219-gjp4-8570p:~ # zpool export Transcend > cannot unmount '/Volumes/t500/VirtualBox': umount failed > root@mowa219-gjp4-8570p:~ # lsof /Volumes/t500/VirtualBox > lsof: WARNING: device cache mismatch: /dev/drm/121 > lsof: WARNING: /root/.lsof_mowa219-gjp4-8570p was updated. > root@mowa219-gjp4-8570p:~ # lsof /Volumes/t500/VirtualBox > root@mowa219-gjp4-8570p:~ # zpool export Transcend > cannot unmount '/Volumes/t500/VirtualBox': umount failed > root@mowa219-gjp4-8570p:~ # uname -v > FreeBSD 13.0-CURRENT #72 r367936: Sun Nov 22 21:46:00 GMT 2020 > root@mowa219-gjp4-8570p:/usr/obj/usr/src/amd64.amd64/sys/GENERIC-NODEBUG > root@mowa219-gjp4-8570p:~ # zfs --version > zfs-0.8.0-1 > zfs-kmod-v2020110200-zfs_8583540c6 > root@mowa219-gjp4-8570p:~ #
does "fuser -c" show anything? the -m option may also be interesting (Search through mmapped files too) Regards, Gary _______________________________________________ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
