netdev - Re: [RFC PATCH 4/4] virtio-net: sleep instead of busy waiting for cvq command

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAJs=3_Akv1zoKy_HARjnqMdNsy_n34TzzGA6a25xrkF2rCnqwg@mail.gmail.com>
Date:   Thu, 22 Dec 2022 17:54:59 +0200
From:   Alvaro Karsz <alvaro.karsz@...id-run.com>
To:     Jason Wang <jasowang@...hat.com>
Cc:     mst@...hat.com, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com,
        virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, maxime.coquelin@...hat.com,
        eperezma@...hat.com
Subject: Re: [RFC PATCH 4/4] virtio-net: sleep instead of busy waiting for cvq command

My point is that the device may complete the control command after the timeout,
so, if I'm not mistaken, next time we send a control command and call
virtqueue_wait_for_used we'll get the previous response.