Re: [Qemu-devel] Crash: When Host HDD is full

[Andreas Färber]

Am 19.07.2007 um 09:25 schrieb Adam Bolte:

> >From a usability perspective, I also would expect this to be the  
> correct
> behaviour. Non-technical users using, say, Windows (in full-screen  
> mode)
> on a GNU/Linux desktop need to know that their HDD is full and they  
> must
> free up space - not have the guest complain about cryptic HDD  
> errors and
> failed writes (assuming the guest OS can even be trusted to do this).
>
> Pausing the VM and notifying the user of no free host storage space is
> also the same behaviour as other virtualization products, so this  
> might
> already be the expected behaviour from the user's POV.
>
> At the very least, I feel a switch to enable this behaviour would be
> appropriate.

Having developed applications for memory-limited devices I agree that  
an application must handle any cases, whether assumed common or not,  
including out-of-memory situations. So qemu should always detect this  
and handle it in some way.

Regarding the user's point of view described above, I concur that a  
switch would be a good compromise. However given that someone using  
CVS head is likely to read the mailing list and all other users  
upgrading should read the release notes, this option should be the  
default or otherwise exactly those users the feature is targeted at  
will not use the switch! It's also more frontend-friendly not needing  
an additional switch for mainstream users.

Andreas