Re: [PATCH v3] tap, tcp, udp: Use rate-limited logging

On Fri, 10 Apr 2026 16:07:37 +0530 Anshu Kumari wrote:

Now that rate-limited logging macros are available, promote several debug messages to higher severity levels. These messages were previously kept at debug to prevent guests from flooding host logs, but with rate limiting they can safely be made visible in normal operation.

In tap.c, refactor tap4_is_fragment() to use warn_ratelimit() instead of its ad-hoc rate limiting, and promote the guest MAC address change message to info level.

In tcp.c, promote the invalid TCP SYN endpoint message to warn level.

In udp.c, promote dropped datagram messages to warn level, and rate-limit the unrecoverable socket error message.

In udp_flow.c, promote flow allocation failures to err_ratelimit.

Link: https://bugs.passt.top/show_bug.cgi?id=134 Signed-off-by: Anshu Kumari --- v3: - Promote flow allocation failures to err_ratelimit from warn_ratelimit. - Fix remaining alignment issues. - Cc Volker

Applied. -- Stefano