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Tsirkin" To: "Jason A. Donenfeld" Cc: Daniel =?iso-8859-1?Q?P=2E_Berrang=E9?= , Laszlo Ersek , LKML , Linux Crypto Mailing List , QEMU Developers , KVM list , linux-s390@vger.kernel.org, adrian@parity.io, "Woodhouse, David" , "Catangiu, Adrian Costin" , graf@amazon.com, Colm MacCarthaigh , "Singh, Balbir" , "Weiss, Radu" , Jann Horn , Greg Kroah-Hartman , Theodore Ts'o , Igor Mammedov , ehabkost@redhat.com, ben@skyportsystems.com, "Richard W.M. Jones" Subject: Re: [PATCH RFC v1 0/2] VM fork detection for RNG Message-ID: <20220225053937-mutt-send-email-mst@kernel.org> References: <20220223131231.403386-1-Jason@zx2c4.com> <2653b6c7-a851-7a48-f1f8-3bde742a0c9f@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-s390@vger.kernel.org On Thu, Feb 24, 2022 at 11:57:34AM +0100, Jason A. Donenfeld wrote: > On Thu, Feb 24, 2022 at 11:56 AM Daniel P. Berrangé wrote: > > IIRC this part of the QEMU doc was making an implicit assumption > > about the way QEMU is to be used by mgmt apps doing snapshots. > > > > Instead of using the 'loadvm' command on the existing running QEMU > > process, the doc seems to tacitly expect the management app will > > throwaway the existing QEMU process and spawn a brand new QEMU > > process to load the snapshot into, thus getting the new GUID on > > the QEMU command line. > > Right, exactly. The "there are no known use cases" bit I think just > forgot about one very common use case that perhaps just wasn't in use > by the original author. So I'm pretty sure this remains a QEMU bug. > > Jason Quite possibly yes. -- MST