#3978 BLOC Update.: Journal getting blank

[Zarro Boogs per Child]

#3978: Journal getting blank
------------------------+---------------------------------------------------
  Reporter:  amitgogna  |       Owner:  AlexL                            
      Type:  defect     |      Status:  new                              
  Priority:  blocker    |   Milestone:  Update.1                         
 Component:  datastore  |     Version:  Development build as of this date
Resolution:             |    Keywords:  Journal Blank Out                
  Verified:  0          |  
------------------------+---------------------------------------------------

Comment(by AlexL):

 Replying to [comment:44 marco]:
 > The datastore is now being a lot nicer with the filesystem, so we think
 it should not trigger the jffs2 problem anymore. Also I think Dave jffs2
 patch landed in the kernel. Finally if the problem had to appear again it
 would not cause a blank journal but just slow down sugar startup a lot.
 >
 > So yeah, we think this is fixed. It would be good to get some testing
 but I'm not sure how to try to reproduce it. This was reproduced
 consistently in the field, with kids apparently using the machine and the
 journal intensively (they had ~200 items in the journal after a couple
 days of use).
 >
 > Alex, you could try to something like this:
 >
 >  * Get the latest joyride build and flash it with no backups.
 >  * Time sugar startup (from X startup to when the journal icon stop
 blinking)
 >  * Open a bunch of activities.
 >  * Take a lot of photos in Record.
 >  * When you have at least 200-300 entries in the journal (you can count
 files in the DS dir) do a reboot.
 >  * See if sugar startup has slowed down consistently (it was ~25 seconds
 slower when the problem has been reproduced in the field).

 Unfortunately, Record does not currently work in Joyride (currently 184),
 so this test will need to wait for that bug (4422) to be fixed. Also,
 rebooting just X, using ctrl alt bs doesn't work right now (4561), so
 timing it is sort of hard. What should I use as a marker to begin timeing?

-- 
Ticket URL: <https://dev.laptop.org/ticket/3978#comment:46>
One Laptop Per Child <https://dev.laptop.org>
OLPC bug tracking system