ubifs : corruption after power cut test

[Matthieu CASTET]

Matthieu CASTET a écrit :
> Hi,
> 
> Matthieu CASTET a écrit :
>> Artem Bityutskiy a écrit :
>> Ok thanks, I will run it
>>
>> When checking the code, I saw that switch_gc_head can set c->gc_lnum to -1.
>>
>> In ubifs_put_super, we set c->mst_node->gc_lnum to c->gc_lnum and write 
>> master node.
>> Can't ubifs_put_super run while switch_gc_head set gc_lnum to -1 ?
>>
> I manage to reproduce it with the backtrace [1].
> 
Waiting for a proper fix, I force recovery if gc_lnum to -1.


Matthieu
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