Re: [Qemu-devel] scsi-hd with discard_granularity and unmap results in Aborted Commands

[Stefan Priebe - Profihost AG]

Am 19.11.2012 11:23, schrieb Paolo Bonzini:
> Il 19/11/2012 11:13, Stefan Priebe - Profihost AG ha scritto:
> > > > >
> > > >
> > > > So you mean this is not a bug in rbd or qemu this is a general bug in
> > > > the linux kernel since they implemented discard?
> > >
> > > Yes.
> >
> > As you're known in the linux dev community ;-) Might you open a thread /
> > discussion in the linux kernel mailinglist CC'ing me regarding this
> > problem? I think when i open one - no one will listen ;-)
>
> Yeah, I'll try making and sending a patch, that's usually a good way to
> convince those guys to listen...
Thanks.

But do you have any idea why it works with an iscsi / libiscsi backend? 
In that case the kernel does not cancel the I/O.

Greets,
Stefan