ReadyNAS NV+ V1 very slow, error cause "attempt to access beyond end of device" writing to logs

[whocarez]

Hi,

My ReadyNAS was very slow, today when i take time to analyze i discovered the cause, i had two deamons with high cpu usage (>80%),  klogd and syslogd, both where continually writing the same error for log files:

jumbo:/var/log# tail kern.log

Dec  6 21:25:12 jumbo kernel: dm-0: rw=0, want=71180927040, limit=11707023360
Dec  6 21:25:12 jumbo kernel: attempt to access beyond end of device

jumbo:/var/log# tail syslog

Dec  6 21:25:12 jumbo kernel: attempt to access beyond end of device
Dec  6 21:25:12 jumbo kernel: dm-0: rw=0, want=71180927040, limit=11707023360

After rebooting with volume check the problem wasn't resolved.

Any idea of the origin of this problem?

PS: Workaround for having a more responsive NAS was to reduce priority of deamons process with renice command

Best Regards

Carlos Pereira

[JennC]

Hello whocarez,

Welcome to the community!

You might want to read this article: How to optimize the ReadyNAS performance.

May I also ask for the current firmware version?

Regards,

[whocarez]

Hi Jenn,

Until now i didn't have any problems with my readynas (almost 9 year trouble free 🙂  )

I'm using the last version of firmware, 4.1.14

Best Regards

Carlos Pereira

[JennC]

Hello whocarez,

It must be because the logs are almost getting full, that's why I asked for the FW version.

I'm glad everything's working flawlessly.

Regards,