Date: Mon, 12 May 2025 11:04:50 -0700 From: Pete Wright <pete@nomadlogic.org> To: freebsd-cloud@FreeBSD.org Subject: ena(4) tx timeout messages in dmesg Message-ID: <fec4cb4f-2a36-4a3d-bf02-539fd1a1273c@nomadlogic.org>
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hey there - i have an ec2 instance that i'm using as a nfs server and have noticed the following messages in my dmesg buffer: ena0: Found a Tx that wasn't completed on time, qid 2, index 593. 10 msecs have passed since last cleanup. Missing Tx timeout value 5000 msecs. ena0: Found a Tx that wasn't completed on time, qid 2, index 220. 1 msecs have passed since last cleanup. Missing Tx timeout value 5000 msecs. ena0: Found a Tx that wasn't completed on time, qid 3, index 240. 1 msecs have passed since last cleanup. Missing Tx timeout value 5000 msecs. ena0: Found a Tx that wasn't completed on time, qid 3, index 974. 1 msecs have passed since last cleanup. Missing Tx timeout value 5000 msecs. ena0: Found a Tx that wasn't completed on time, qid 2, index 730. 1 msecs have passed since last cleanup. Missing Tx timeout value 5000 msecs. ena0: Found a Tx that wasn't completed on time, qid 2, index 864. 10 msecs have passed since last cleanup. Missing Tx timeout value 5000 msecs. ena0: Found a Tx that wasn't completed on time, qid 3, index 998. 1 msecs have passed since last cleanup. Missing Tx timeout value 5000 msecs. the system is not overly loaded, but does have a steady %25 CPU usage and averages around 2MB/sec network throughput (the system serves a python virtual-environment to a cluster of data processing systems). The man page states: "Packet was pushed to the NIC but not sent within given time limit. It may be caused by hang of the IO queue." I was curious if anyone had any idea if these messages indicate a poorly tuned system, or are they just informational. Looking at the basics like mbuf's and other base metrics and the system looks OK from that perspective. thanks! -pete -- Pete Wright pete@nomadlogic.orghome | help
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