Re: debugnet_any_ifnet_update: Bad dn_init result

From: Franco Fichtner <franco_at_opnsense.org>
Date: Mon, 28 Feb 2022 15:00:15 UTC 
Hi Mark,

> On 28. Feb 2022, at 15:51, Mark Johnston <markj@freebsd.org> wrote:
> 
> Do you have any idea what triggers the message in the first place?  I
> haven't seen it on my igb-using systems.

No but I have hardware here that does this. Short dmesg scan:

# dmesg | grep igb2
igb2: <Intel(R) I210 Flashless (Copper)> port 0x4000-0x401f mem 0xf7d00000-0xf7d1ffff,0xf7d20000-0xf7d23fff irq 36 at device 0.0 on pci3
igb2: NVM V0.6 imgtype6
igb2: Using 1024 TX descriptors and 1024 RX descriptors
igb2: Using 4 RX queues 4 TX queues
igb2: Using MSI-X interrupts with 5 vectors
igb2: Ethernet address: f4:90:ea:00:2d:9d
igb2: netmap queues/slots: TX 4/1024, RX 4/1024
debugnet_any_ifnet_update: Bad dn_init result from igb2 (ifp 0xfffff800035ea000), ignoring.

Context for dn_init messages:

# dmesg | grep -C1 dn_init
igb0: link state changed to UP
debugnet_any_ifnet_update: Bad dn_init result from igb0 (ifp 0xfffff80003752800), ignoring.
igb1: link state changed to UP
debugnet_any_ifnet_update: Bad dn_init result from igb1 (ifp 0xfffff800035e8800), ignoring.
intsmb0: <AMD FCH SMBus Controller> at device 20.0 on pci0
--
amdtemp0: <AMD CPU On-Die Thermal Sensors> on hostb5
debugnet_any_ifnet_update: Bad dn_init result from igb2 (ifp 0xfffff800035ea000), ignoring.
lagg0: link state changed to DOWN

It appears this happens on all interfaces that get configured during init.

The device has a fourth device that doesn't appear to have this issue:

# dmesg | grep igb3
igb3: <Intel(R) I210 Flashless (Copper)> port 0x6000-0x601f mem 0xf7e00000-0xf7e1ffff,0xf7e20000-0xf7e23fff irq 40 at device 0.0 on pci4
igb3: NVM V0.6 imgtype6
igb3: Using 1024 TX descriptors and 1024 RX descriptors
igb3: Using 4 RX queues 4 TX queues
igb3: Using MSI-X interrupts with 5 vectors
igb3: Ethernet address: f4:90:ea:00:2d:9e
igb3: netmap queues/slots: TX 4/1024, RX 4/1024
vlan1: changing name to 'igb3_vlan43'
igb3: promiscuous mode enabled

Can also share full dmesg if you want or deliver other info.


Cheers,
Franco