Subject: Re: [PATCH net-next 0/3] net: ethtool: Track TX pause storm

From: Jakub Kicinski <[email-masked]>
Date: Fri, 23 Jan 2026 12:05:12 -0800

On Fri, 23 Jan 2026 11:36:33 -0800 Florian Fainelli wrote:
> On 1/22/26 11:21, Mohsin Bashir wrote:
> > With TX pause enabled, if a device cannot deliver received frames to
> > the stack (e.g., during a system hang), it may generate excessive pause
> > frames causing a pause storm. This series updates the uAPI to track TX
> > pause storm events as part of the pause stats (p1), adds pause storm
> > protection support for fbnic (p2), and leverages p1 to provide
> > observability into these events for fbnic (p3).  
> 
> Jakub, should I go ahead and re-submit this patch series then:
> 
> https://patchew.org/linux/[email-masked]/

Sounded like Oleksij is also interested so let's go ahead.
Presumably an attr in ethtool -a/-A ?

> Looks like this is exactly what you ran into here.

Kinda, the machines reboot on panic. The problematic cases are those
that crashed in a way that didn't trigger normal reboot cycle. 
Or got wedge somewhere funny.