Re: JFFS2: strange output

[Kenneth Johansson <kenneth.johansson@etx.ericsson.se>]

I think you used up all free blocks and now you basically is in a state where
you have to wait for one to get free before anything can happen. If you just
wait a while when things start to get slow then repeat the test do you get a
few runs that are fast again?

Alex Zeffertt wrote:
> 
> Hi all,
> 
> I'm using a linux-2.4.4-2001-11-24 kernel on an MPC862 based board.
> 
> I've been playing with JFFS2 and getting some strange results.
> 
> First I erase /dev/mtd2 (a 6 MB FLASH partition).  Then I mount the same partition
> 
> > mount -t jffs2 /dev/mtdblock2 /mnt
> 
> Then I copy file1 (a 500K file) to /mnt and repeat the following over and over:
> 
> > cp /mnt/file1 /mnt/file2; rm /mnt/file1; mv /mnt/file2 /mnt/file1
> 
> After 10 of the above I get the following message in /var/log/messages:
> 
> Dec 24 00:04:58 gonzo kernel: Waiting for chip to read, status = 4
> Dec 24 00:05:40 gonzo last message repeated 2 times
> 
> After 11 of the above I get the following message in /var/log/messages:
> 
> Dec 24 00:05:55 gonzo kernel: Waiting for chip to read, status = 4
> Dec 24 00:05:55 gonzo kernel: Waiting for chip to read, status = 7
> Dec 24 00:06:26 gonzo last message repeated 2841 times
> 
> By this point the copies are progressing painfully slowly.
> 
> I repeated the same test with JFFS1 and had no problems.  I repeated the above command 100 times,
> with no strange output in /var/log/messages, and with no slowing down.
> 
> Has anybody had similar problems with JFFS2?
> 
> Alex
> 
> ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

-- 
Kenneth Johansson	
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