Readynas 104 won't boot. Error 354 out_of_memory. After upgrade to 6.4.1 #26323717

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This problem appears to happen on the 104 in some cases when the filesystem is quite full after updating from 6.2.x.

I guess quite full is quite relative, as ours still has 60% free...

Even if you don't have quotas enabled for any shares we do use quotas still to calculate how much space is used by snapshots for instance.

yeah, I guessed there probably wouldve also been some internal quotas.

There is likely a combination of things using up memory on affected systems.

Now the tricky part is to find out the combination. But seeing that it seems mostly quite basic configs (min services, no apps, no AV etc), and the fact that it boots ok in RO mode and that in normal mode there seems a small window where it seems quite ok, except for the Admin Page which might be another clue, before it breaks down, I guess reduces the # combos.

If there is something we can do, let us know. Already have a looot of logs we could send :smileylol:

Having run into this problem if you boot into read-only mode and backup your data, do a factory default (wipes all data, settings, everything) and restore your data from backup the system should be running fine with quotas enabled.

That wouldve been my ultimate last resort option and was already preparing for it by making a new backup. On ext4 target this time as previous was on NTFS to be able to read under Windows. Just hope the backup is a bit quicker this time, as it took about 2.5 days for backing up 1.5TB :smileyfrustrated:

Is it also ok to backup/restore the configuration, or better to redo the config from scratch after the factory default?

Will the restore also restore the snapshots etc?

And then hope that by restoring the backup the memory combo isnt triggered again. :)

If you run into this if you prefer we can disable quotas from the backend so that the NAS will boot in normal mode.

Think we prefer to start from scratch then, cause who knows what the quota disable might cause in the future :P ;)