From: bugzilla@dpdk.org
To: dev@dpdk.org
Subject: [DPDK/vhost/virtio Bug 1467] Virtio_user as Exception Path in secondary process report mistakes ( virtio_user_notify_queue(): failed to kick backend: Bad file descriptor)
Date: Thu, 20 Jun 2024 02:46:53 +0000 [thread overview]
Message-ID: <bug-1467-3@http.bugs.dpdk.org/> (raw)
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https://bugs.dpdk.org/show_bug.cgi?id=1467
Bug ID: 1467
Summary: Virtio_user as Exception Path in secondary process
report mistakes ( virtio_user_notify_queue(): failed
to kick backend: Bad file descriptor)
Product: DPDK
Version: 21.11
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: critical
Priority: Normal
Component: vhost/virtio
Assignee: dev@dpdk.org
Reporter: 952983126@qq.com
Target Milestone: ---
when using Virtio_user as Exception Path ,configure the port in the primary
process , virtio_user do rx and tx in the secondary process. it generates a
mistake in tx such as (virtio_user_notify_queue(): failed to kick backend: Bad
file descriptor).
in my opinion ,when initialize the second process , is it properly to copy the
callfd and kickfd which are initialized by primay process to the secondary
process ？ in this situation ，i don't think the secondary process could find
the correct kickfd ,and it make kthread work abnormal.
please see the question ,thank you !!!
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