[maemo-users] [maemo-users] bug #978: metalayer-crawler

[From: Gary Mulder]

Eero,

> > Here's the output from your script:
> >
> > ./numfiles.sh: ./numfiles.sh: 24: cannot create : Directory nonexistent
> > ..
> > ./numfiles.sh: ./numfiles.sh: 24: cannot create : Directory nonexistent
> >      1 24
> >      7 MP3
> >   1325 _notype
>
> This is interesting, there are over thousand files without any
> filename extension (or I botched my script).  What files those
> are?  :-)

Nokia-N800-51:/media/mmc2# find . -type f | wc -l
    418
Nokia-N800-51:/media/mmc2# find . -type d | wc -l
     42

> > I reconfirmed last night that Media Player is taking 5+ minutes to
> > start up. The GUI kept on telling me it was not responding and did I
> > want to kill it. I didn't, and eventually the Player behaved as
> > expected.
>
> This was with or without nicing the crawler (in its init script)?

This was prior to nicing the crawler.

> > 2. Powered on the unit, immediately run Media Player while the crawler
> > was running. Unit reset.
>
> Device rebooted?

Yes.

> Could you check how much RAM crawler takes at most while it indexes
> that card?  Just start Xterm, run "top" in it and then take the card
> out and and put it back again and see what's the largest RSS value for
> the crawler process (if you press 'M' in keyboard, top sorts by memory
> usage)...

I assume it is fine to remove and insert the internal SD card while
the unit is on? I did so, but didn't see the crawler kick in. I
therefore did a "/etc/init.d/metalayer-crawler0 restart", but this
didn't seem to do much either. In any event:

  PID USER     STATUS   RSS  PPID %CPU %MEM COMMAND
...
  2094 user     S N     2896   329  0.0  2.2 metalayer-crawl
  2096 user     R N     2896  2094  0.0  2.2 metalayer-crawl

Hmm, it looks like the SD card did not remount:

Nokia-N800-51:~# umount /media/mmc2
Nokia-N800-51:~# mount /media/mmc2
mount: Can't find /media/mmc2 in /etc/fstab
Nokia-N800-51:~# mount /dev/mmcblk0p1 /media/mmc2
mount: Mounting /dev/mmcblk0p1 on /media/mmc2 failed: No such file or directory
Nokia-N800-51:~# ls -l /dev/mmcblk0p1
ls: /dev/mmcblk0p1: No such file or directory

Where did my SD card go? :-)

> > Is there a file that the crawler generates that I can look at?
>
> Do:
>    strings /home/user/.meta_storage > meta.txt
>
> and read the meta.txt.  I don't know whether the player uses that
> database directly or communicates with the crawler instead though.

I don't have strings. Grrr.

> > I'll install fsck on the unit.
>
> You can do fsck the card FAT on the you Linux PC (or on Windows).

Done under XP, no errors.

Thanks for all your help!
Gary