|Subject:||[Ltib] RE: JFFS2 crc errors|
|Date:||Wed, 4 Aug 2010 15:41:47 -0500|
No I just made some changes to the rootfs and saved them back. After a power down and reboot, it started reporting this. The product cannot be software shut down and must tolerate abrupt power loss. If that is something we must consider in design then I need to get any appropriate changes made to the hardware/software to correct or tolerate this condition. This is not the first time I have seen this in fact it almost always happens when we change the rootfs in any way. I just wanted to better understand it and make sure it’s not a problem.
This can happen if something is writing to the NAND when the system is abruptly powered off or reset. Only part of the data will have been written to NAND.
Was the board shut down with the ‘reboot’ or ‘poweroff’ commands? This should give you a safe shutdown of JFFS2. An abrupt power cycle or reset can lead to issues with JFFS2 data (similar to any file system).
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