jffs2_get_inode_nodes() very very slow

[Thomas Gleixner]

On Tue, 2005-02-01 at 16:32 +0100, Rudi Engelbertink wrote:
> Hello,
> 
> On a 64 MiB NAND Flash I created a jffs2 file system. After several tests
> especially power fail tests resulting in a lot off CRC and Data CRC errors.
> This appears not to be a problem except it takes a very long time to check
> the file system.
> The initial check (scanning for erased blocks) is done in aproximatly 10
> seconds, but after that the jffs2_get_inode_nodes check is running. 
> This process takes up to 8 minutes.
> During this time the file-system is inaccessible which in oure case a
> watchdog decides to reboot the system, making it even worse.
> It appears that the check is done with a stepsize of 16 bytes. On an 64MiB
> NAND flash it does this check +/- 4 million times.

Hmm, which kernel version ? 

Can you switch on JFFS2 debugging (debuglevel 1), log the output on a
serial line and send me the log, please ? 

tglx