[参考译文] J784S4XEVM：高流量下的网络连接丢失

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1573324/j784s4xevm-network-connectivity-loss-under-high-traffic

工具/软件：

ti-edgeai-image从 SDK 11 运行的 J784S4XEVM 电路板上存在网络稳定性问题。

这一问题表现在高网络流量下,我们可以在从 AWS S3 存储桶 以大约 100 Mbit/s 的吞吐量下载数据时可靠地重现 此活动会触发许多内核错误消息、我已将其粘贴在下面：

[  394.266696] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.278107] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.289570] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.300994] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.312471] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.323887] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.335336] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.346785] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.358314] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.369755] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.381170] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.392590] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.404039] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.415473] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.426923] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.438387] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.449831] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.461270] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.472714] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.484161] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.564155] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.573735] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.585243] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.596669] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.608069] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.619531] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.630963] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  394.642421] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  398.922649] swiotlb_tbl_map_single: 4200 callbacks suppressed
[  398.928414] am65-cpsw-nuss 46000000.ethernet: swiotlb buffer is full (sz: 4096 bytes), total 32768 (slots), used 32768 (slots)
[  398.939808] am65-cpsw-nuss 46000000.ethernet: swiotlb buffer is full (sz: 4096 bytes), total 32768 (slots), used 32768 (slots)
[  398.951194] am65-cpsw-nuss 46000000.ethernet: swiotlb buffer is full (sz: 4096 bytes), total 32768 (slots), used 32768 (slots)
[  398.962565] am65-cpsw-nuss 46000000.ethernet: swiotlb buffer is full (sz: 4096 bytes), total 32768 (slots), used 32768 (slots)
[  398.979479] am65-cpsw-nuss 46000000.ethernet: swiotlb buffer is full (sz: 4096 bytes), total 32768 (slots), used 32768 (slots)
[  398.991271] am65-cpsw-nuss 46000000.ethernet: swiotlb buffer is full (sz: 4096 bytes), total 32768 (slots), used 32768 (slots)
[  399.008180] am65-cpsw-nuss 46000000.ethernet: swiotlb buffer is full (sz: 4096 bytes), total 32768 (slots), used 32768 (slots)
[  399.025088] am65-cpsw-nuss 46000000.ethernet: swiotlb buffer is full (sz: 4096 bytes), total 32768 (slots), used 32768 (slots)
[  399.036969] am65-cpsw-nuss 46000000.ethernet: swiotlb buffer is full (sz: 4096 bytes), total 32768 (slots), used 32768 (slots)
[  399.053875] am65-cpsw-nuss 46000000.ethernet: swiotlb buffer is full (sz: 4096 bytes), total 32768 (slots), used 32768 (slots)
[  399.071041] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.082344] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.093781] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.105247] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.116697] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.128118] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.139571] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.151026] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.162462] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.173909] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.185390] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.196827] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.208259] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.219703] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.231149] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.242627] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.254063] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.265489] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.276943] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.288412] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.299829] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.311276] am65-cpsw-nuss 46000000.ethernet: page alloc failed
[  399.322727] am65-cpsw-nuss 46000000.ethernet: page alloc failed

出现这些错误后、电路板的网络堆栈最终会完全失败。 我们将失去所有连接—设备不再响应 ping 请求、并且 SSH 访问将丢失。 还原网络功能的唯一方法是执行硬重启。

您能否就如何诊断和解决此问题提供一些指导？

感谢您的支持。