Problems with JFFS2 FS during parallel write operations

[Ostendorf, Rainer]

Hi list,

i'm still working on the problem described in my previous post:

[...]
> During normal operation the system runs perfectly stable, but when i 
> start two processes running parallel, writing huge amounts of data 
> to the flash device, i get error 
> messages from the JFFS2 filesystem:
> 
> ...
> argh. node added in wrong place
> argh. node added in wrong place
> ...
> 
> This message repeats for about 15-20 times while copying parallel 2 
> files of about 6MByte to the flash via Ethernet (SCP). 
[...]

As i can only reproduce the corruption of the JFFS2 FS during parallel access of at leat two processes writing to the flash, i assume that the cause for the corruption is some kind of race-condition. Have there been any known problems/bugs with race conditions, that could lead to an error like this? Would it probably help to upgrade to a newer kernel version? Any hint and help would be greatly appreciated.

best regards,
Rainer


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