Re: [PATCH net-next] net: stmmac: enable RPS and RBU interrupts

Jakub Kicinski
2026-04-13T18:02:36Z

On Fri, 10 Apr 2026 14:07:51 +0100 Russell King (Oracle) wrote:
> Since we are seeing receive buffer exhaustion on several platforms,
> let's enable the interrupts so the statistics we publish via ethtool -S
> actually work to aid diagnosis. I've been in two minds about whether
> to send this patch, but given the problems with stmmac at the moment,
> I think it should be merged.

Sorry for a under-research response but wasn't there are person trying
to fix the OOM starvation issue? Who was supposed to add a timer?
Is your problem also OOM related or do you suspect something else?

Firing interrupts when Rx fill ring runs dry (which IIUC this patches
dies?) is not a good idea.