RN422 weird message on front panel

Question

ReadyNAS RN422 2 bay and weird front panel messageUnit is just over 2 years old and so far I've been happy with performance and reliability.This morning, following usual scheduled start via Power Timer, I have noticed a bizarre message on the front panel as follows:(null)+ffffea0001d29000It's never done this beforeUnit is running firmware 6.10.4 Hotfix 1, and via the Admin page I've confirmed no updates are pendingOverview shows NAS as healthyThere are no untoward events in system logsClient access to file shares seems okI've rebooted and the front panel does not show the message now, and once more, no errors in system logsI've searched but found no other cases where this message is shownCan anyone cast any light on this?Thanks in advance

StephenB · Answer

Numb3r6&nbsp;wrote:
ReadyNAS RN422 2 bay and weird front panel message
&nbsp;I have noticed a bizarre message on the front panel as follows:
(null)+ffffea0001d29000
Can anyone cast any light on this?

The NAS crashed.&nbsp; There could be more information in the full log zip that might give more details on what was running when the crash occured.
&nbsp;
Does the system come up normally when you reboot it?
&nbsp;
&nbsp;

Numb3r6 · Answer

Thanks for the quick reply, much appreciated.

If the NAS had crashed, it seems odd that I could still access the shares from my devices...or is that to be expected?
In terms of startup, yes, all seemed normal and had it not been for the front panel message I would have been none the wiser with no clues in logs and shares seemingly working normally.

I've just had another look at logs from last night into this morning and see nothing unusual, as follows:
Last night's auto shutdown

Apr 30, 2021 12:00:09 AM

System: The system is shutting down.
This morning's auto startup

Apr 30, 2021 08:01:29 AM

System: ReadyNASOS background service started.

Apr 30, 2021 08:01:31 AM

Snapshot: Snapshot prune worker successfully deleted snapshot 2021_04_02__00_00_00 from share or LUN Applications.
(ditto for another x5 shares)

Apr 30, 2021 08:18:21 AM

System: Antivirus scanner definition file was updated to 59.26155.
Then my manual shutdown and reboot...

Apr 30, 2021 11:18:23 AM

System: The system is rebooting.

Apr 30, 2021 11:21:56 AM

System: ReadyNASOS background service started.

I've dumped the logs via ZIP as suggested, but really don't know where to start as there are so many files. If you could possibly suggest where to start looking or if sharing here might be of value, I'd be grateful!

StephenB · Answer

Numb3r6&nbsp;wrote:
If the NAS had crashed, it seems odd that I could still access the shares from my devices...or is that to be expected?I've dumped the logs via ZIP as suggested, but really don't know where to start as there are so many files. If you could possibly suggest where to start looking or if sharing here might be of value, I'd be grateful!

It sounds like a process on the NAS crashed, but it was still partially up.
&nbsp;
Start in kernel.log and search for the error string (ffffea0 is likely enough).

Numb3r6 · Answer

Thanks for that suggestion. As it happens I'd already considered kernel.log as a good starting point but when I first looked into it realised I didn't know what I was looking for really, so that string search made sense. I did try that but got no hits at all. If there are other files from the log dump I should home in on I'd appreciate any pointers, given there are an awful lot of them!I did also come across this thread, which discusses very similar issues (string is not exactly the same) and seems to be related to some IPv6 glitchhttps://community.netgear.com/t5/New-ReadyNAS-Users-General/RN314-Front-Panel-Null-ffffffff880fa4cf/td-p/2041281That said I've checked my router IP tables (the NAS is set to use a constant DHCP address) and it says "This device either does not support or is not configured for IPv6 addressing"System has started normally today BTW

StephenB · Answer

Numb3r6&nbsp;wrote:
&nbsp;
I did also come across this thread, which discusses very similar issues (string is not exactly the same) and seems to be related to some IPv6 glitchhttps://community.netgear.com/t5/New-ReadyNAS-Users-General/RN314-Front-Panel-Null-ffffffff880fa4cf/td-p/2041281

Actually I think the poster concluded it was the plex scanner daemon.&nbsp; But it didn't look definitive.
&nbsp;
Numb3r6&nbsp;wrote:
That said I've checked my router IP tables (the NAS is set to use a constant DHCP address) and it says "This device either does not support or is not configured for IPv6 addressing"

ipv6 is enabled by default in the NAS network settings.&nbsp; I've disabled it on my NAS (since it is also disabled in my router).&nbsp; You might want to check the settings on your own NAS.
&nbsp;
Numb3r6&nbsp;wrote:
If there are other files from the log dump I should home in on I'd appreciate any pointers, given there are an awful lot of them!

System.log and systemd-journal.log.&nbsp; Maybe dmesg.log.
&nbsp;
You could also look for anything odd in the time window of the crash (instead of focusing on the memory address).

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RN422 weird message on front panel

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