I'm also having the same problem. It has happened 4 times in the last two months. Camera does not start, feeds do not update, mails do not download, and then after I reboot all messages, feeds and contacts are gone, while to regain mail functionality I have to delete and recreate all the mail accounts.

On "df -i"

/dev/mmcblk0p3 at 131072/131072/0/100% (no inodes available?)
/dev/mmcblkp01 at 0/0/0/0% (no inodes exist?)

df -h gives

/dev/mmcblk0p3 2.0G/1.3G/601.4M/69%
/dev/mmcblk0p1 53.7G/43.1G/10.7G/80%

How can I have space without inodes?

Do I need to fsck the fscking phone?

It really seems to be a space problem. When I start "camera-ui" I get

Timeout when requesting for resources. Going to standby
No space left on device: opening file /home/user/.omap3cam
Setting camera pipeline to running state failed.
Camera pipeline error: "Failed to configure driver module" (etc)


--- Update 1 ---

So I used Drop Cache and QAD Cleaner Free. Drop Cache did not solve anything, but I used QAD cleaner to clean /home/user/.grob/cache and now I have 2215 inodes available on /home/user. And the camera starts.

How do I fix this? How do I get more inodes without repartitioning? Is it safe to clean /home/user/.cache as well?

--- Update 2 ---

The biggest eater of diskspace on /home/user is .thumbnails. What is inside this folder and is it safe to delete its contents? I can't even "ls" or "du" this folder, it throws "permission denied even under "devel-su". - .thumbnails has 105 THOUSAND files!

What else could I delete safely from /home/user?

OK, I also found out why MyDocs has 0 inodes. No inodes on a FAT32 partition...