SHR Qi booting: alignment trap, broken UBIFS

Alexander Lehner lehner at
Wed Jul 28 21:33:55 CEST 2010

In earlier posts I mentioned that my ubifs filesystem was mounted 
readonly, which shouldn't be the case.

I've trace this down now:
Flashing kernel and rootfs freshly (July-21 version), having Qi installed,
I longer press the Power button to see debug messages.
There are millions of 'alignment trap' messages.
Also, the ubifs driver complains about corrupted filesystem with a defered 

The reparation seems to work after two or three reboots, until then the 
filesystem remains readonly. I also have the effect that I cannot pass the 
'set root password' dialog of the first time configuration wizzard.

The 'alignment traps' disappear (of course) when I boot without debug 
output, but I'm wondering if this is normal and if this doesn't still 
cost some boot time?


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