On Thu, Jan 28, 2016 at 02:40:23PM +0000, Michael van Elst wrote:
> bou...@antioche.eu.org (Manuel Bouyer) writes:
>
> >> The driver gets detached in config_detach_all() during a
> >> regular reboot unless you use the RB_NOSYNC flag. Unfortunately
> >> this also prevents unmounting and syncing the filesystems.
>
> >RB_DUMP should probably be handled as RB_NOSYNC then
>
> Maybe. It's probably safer to either exclude the dump device
> or to re-attach it. Re-attaching seems to be cleaner but is
> probably difficult to do in a crash situation.
It's not only the dump device you need to reattach but all the
device chain up to mainbus (the detach code may have shut down a PCI
bridge for example). It doesn't look so easy.
If the dump device is open would this prevent it from being detached ?
If so maybe we could open it before detaching all devices ?
--
Manuel Bouyer <bou...@antioche.eu.org>
NetBSD: 26 ans d'experience feront toujours la difference
--
