From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: dev@dpdk.org, yliu@fridaylinux.org, lei.a.yao@intel.com
Cc: jfreiman@redhat.com, thomas@monjalon.net,
Maxime Coquelin <maxime.coquelin@redhat.com>
Subject: [dpdk-dev] [PATCH] vhost: fetch again ring_addrs address after NUMA reallocation
Date: Fri, 13 Oct 2017 11:30:21 +0200 [thread overview]
Message-ID: <20171013093021.3196-1-maxime.coquelin@redhat.com> (raw)
In case of NUMA reallocation, the virtqueue struct is reallocated
on another socket, meaning that its address changes.
In translate_ring_addresses(), addr pointer was not fetched again
after the reallocation, so it pointed to freed memory.
This patch just fetch again addr pointer after the reallocation.
Reported-by: Yao, Lei A <lei.a.yao@intel.com>
Tested-by: Yao, Lei A <lei.a.yao@intel.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
lib/librte_vhost/vhost_user.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index 9acac6125..2416a0061 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -417,6 +417,7 @@ translate_ring_addresses(struct virtio_net *dev, int vq_index)
dev = numa_realloc(dev, vq_index);
vq = dev->virtqueue[vq_index];
+ addr = &vq->ring_addrs;
vq->avail = (struct vring_avail *)(uintptr_t)ring_addr_to_vva(dev,
vq, addr->avail_user_addr, sizeof(struct vring_avail));
--
2.13.6
next reply other threads:[~2017-10-13 9:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-13 9:30 Maxime Coquelin [this message]
2017-10-13 9:43 ` Jens Freimann
2017-10-13 19:31 ` Thomas Monjalon
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