Re: [RFC net v4 0/4] bnxt_en: Make RING FREE more robust

[Joe Damato]

On Tue, Oct 06, 2026 at 10:22:51PM +0000, anmory wrote:
> 
> Hi Joe,
> one important detail I omitted from my previous mail: the affected eth1 interface is an 802.1Q trunk with multiple VLAN subinterfaces.
> We also use Keepalived VRRP with use_vmac, so virtual MAC interfaces are layered on the VLAN interfaces. Traffic is routed/forwarded through the host and uses conntrack/SNAT before leaving through another physical interface.
> We are not deliberately toggling VLAN offload during the test. The reproduction so far is simply to boot Debian 6.12.111-1 with this normal network configuration and workload. On one host it reproduced after about 20 minutes; on another it reproduced almost immediately. We have also seen a previous occurrence after several hours, so we do not yet have a deterministic packet-level trigger.
> Given the VLAN configuration, Eric's patch looks especially relevant. I'll test 6.12.111 with that patch first as you suggested and report whether the failure still reproduces.

Seems likely you are hitting the bug Eric just fixed, IMHO. If his patch
resolves your issue, please let me know.