Re: [Qemu-devel] [PATCH RFT 0/3] iscsi: fix NULL dereferences / races between task completion and abort

[Stefan Priebe - Profihost AG]

Hi Ronnie,

Am 20.08.2012 10:08, schrieb Paolo Bonzini:
> That's because the "big QEMU lock" is held by the thread that called
> qemu_aio_cancel.
>
> > and i also see
> > no cancellation message in kernel log.
>
> And that's because the UNMAP actually ultimately succeeds.  You'll
> probably see soft lockup messages though.
>
> The solution here is to bump the timeout of the UNMAP command (either in
> the kernel or in libiscsi, I didn't really understand who's at fault).

What's your suggestion / idea about that?

Greets,
Stefan