RN716X LED: "kthread_data+b" and journal.log:"kernel BUG at drivers/md/raid5.c:529!"

[spdr2016]

Hello,

RN716 became unresponsive after the displayed LED message (kthread_data+b). I had to power switch on and off the back of the device to reboot RN716X.

journal.log at the time of error shows:
Dec 21 06:29:08 rn716 kernel: kernel BUG at drivers/md/raid5.c:529!

Did anyone run into the same issue?  If yes, is there a solution?

Thank you!

[spdr2016 · Accepted solution]

Thanks mdgm -- I've just sent you the logs. An update: - The problem had occurred during backup from a server to a RN716X share. The backup file size is ~37.8GB. - Netgear support has reviewed the logs, and said, that the backup file had crossed some kind of a [page] boundary, and thus triggering a kernel error. Also, Netgear support had added "Defrag" and "Balance" to RN716X list of scheduled actions against my RN716X volume, via remote support session. Netgear believes that the problem is unlikely to reoccur.

[mdgm-ntgr]

Can you send in your logs (see the Sending Logs link in my sig)?

[spdr2016 · Accepted solution]

Thanks mdgm -- I've just sent you the logs. An update: - The problem had occurred during backup from a server to a RN716X share. The backup file size is ~37.8GB. - Netgear support has reviewed the logs, and said, that the backup file had crossed some kind of a [page] boundary, and thus triggering a kernel error. Also, Netgear support had added "Defrag" and "Balance" to RN716X list of scheduled actions against my RN716X volume, via remote support session. Netgear believes that the problem is unlikely to reoccur.

[mdgm-ntgr]

Thanks for the update. In the unlikely event the problem reoccurs let us know.