Thread (11 messages) flat view 11 messages, 4 authors, 2026-01-12

Re: [PATCH net v3 0/3] virtio-net: fix the deadlock when disabling rx NAPI

From: patchwork-bot+netdevbpf@kernel.org
Date: 2026-01-12 21:00:20
Also in: bpf, lkml, virtualization

Hello:

This series was applied to netdev/net.git (main)
by Jakub Kicinski [off-list ref]:

On Tue,  6 Jan 2026 22:04:35 +0700 you wrote:
Calling napi_disable() on an already disabled napi can cause the
deadlock. In commit 4bc12818b363 ("virtio-net: disable delayed refill
when pausing rx"), to avoid the deadlock, when pausing the RX in
virtnet_rx_pause[_all](), we disable and cancel the delayed refill work.
However, in the virtnet_rx_resume_all(), we enable the delayed refill
work too early before enabling all the receive queue napis.

[...]
Here is the summary with links:
  - [net,v3,1/3] virtio-net: don't schedule delayed refill worker
    https://git.kernel.org/netdev/net/c/fcdef3bcbb2c
  - [net,v3,2/3] virtio-net: remove unused delayed refill worker
    https://git.kernel.org/netdev/net/c/1e7b90aa7988
  - [net,v3,3/3] virtio-net: clean up __virtnet_rx_pause/resume
    https://git.kernel.org/netdev/net/c/a0c159647e66

You are awesome, thank you!
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