virtio-serial driver bugfixes#817
Open
Martinits wants to merge 2 commits intointel:mainfrom
Open
Conversation
added 2 commits
April 28, 2026 14:58
recv_control() previously popped only one used entry from the control RX queue per call. When QEMU delivers multiple control events (e.g. DeviceAdd, PortOpen), the remaining events could be left pending and never handled, leading to missing RX prefill / vq empty failures. Change recv_control() to drain all pending control messages after the initial wait, ensuring the full control sequence is processed. Signed-off-by: Wenbo Li <liwenbo.liwenbo@bytedance.com>
VirtioSerialPort::open() may return PortNotAvailable because the PORT_OPEN control event arrives after the initial control setup. On each PortNotAvailable, non-blockingly drain pending control messages for at most 100 times. Signed-off-by: Wenbo Li <liwenbo.liwenbo@bytedance.com>
Contributor
|
could you please fix CI failure? |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Fix 2 migtd virtio-serial driver bugs: