I've been digging into this and this appears to be a regression
introduced by the following patch
https://github.com/torvalds/linux/commit/3cd3399dd7a84 which was first
released in Linux 6.0.0.
The bug is not a memory leak but rather a bug in how memory usage is
counted. Excess memory is not
The bug report can be found here:
https://lore.kernel.org/netdev/vi1pr01mb42407d7947b2ea448f1e04efd1...@vi1pr01mb4240.eurprd01.prod.exchangelabs.com/
The subsequently produced patch (not by me!) to fix this can be found
here:
Hello there,
I think this may be the same issue as
https://bugs.launchpad.net/ubuntu/+source/linux-signed-
aws-6.2/+bug/2045560
I believe this might be related to the following kernel bug which
impacts Linux 6.0.0+:
As another "me too" situation, I'm seeing the same phenomenon, though on
Rocky 9 rather than Ubuntu and on older kernels (5.14). Reporting
details here on the off chance this provides some insight.
Hardware: Ampere Altra Max 128 cores (aarch64), ConnectX6-DX NICs (2 x dual
100G port)
Kernel
