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

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