From: "Eugenio Pérez" <eperezma@redhat.com>
To: qemu-devel@nongnu.org
Cc: Laurent Vivier <lvivier@redhat.com>,
Jason Wang <jasowang@redhat.com>,
qemu-stable@nongnu.org, Cindy Lu <lulu@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>
Subject: [PATCH 0/3] vdpa: Fix SIGSEGV on failed vdpa devices
Date: Fri, 19 Nov 2021 11:20:30 +0100 [thread overview]
Message-ID: <20211119102033.36149-1-eperezma@redhat.com> (raw)
Qemu falls back on userland handlers even if vhost-user and vhost-vdpa
cases. These assumes a tap device can handle the packets.
If a vdpa device fail to start, it can trigger a sigsegv because of
that. Add dummy receivers that return no progress so it can keep
running.
Tested with a modified version of vp_vdpa to fail negotiation.
This is another bersion of the patch proposed in [1], but the subject
didn't match the patch anymore.
[1] https://lists.nongnu.org/archive/html/qemu-devel/2021-11/msg03719.html
Eugenio Pérez (3):
virtio-net: Fix indentation
vdpa: Add dummy receive callbacks
virtio-net: Fix log message
hw/net/virtio-net.c | 13 +++++++------
net/vhost-vdpa.c | 16 ++++++++++++++++
2 files changed, 23 insertions(+), 6 deletions(-)
--
2.27.0
next reply other threads:[~2021-11-19 10:22 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-19 10:20 Eugenio Pérez [this message]
2021-11-19 10:20 ` [PATCH 1/3] virtio-net: Fix indentation Eugenio Pérez
2021-11-19 10:20 ` [PATCH 2/3] vdpa: Add dummy receive callbacks Eugenio Pérez
2021-11-22 3:55 ` Jason Wang
2021-11-22 6:41 ` Eugenio Perez Martin
2021-11-19 10:20 ` [PATCH 3/3] virtio-net: Fix log message Eugenio Pérez
2021-11-22 3:56 ` [PATCH 0/3] vdpa: Fix SIGSEGV on failed vdpa devices Jason Wang
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