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466  Linux Stuff / Kernel / Re: 2.6.30-rc4 new release on: April 30, 2009, 07:29:20 PM
ext3 is built as a module, the only thing this precludes is mounting root as ext3.  If you add ext3 to /etc/modules it should mount an ext3 partition just fine.  The device mapper is for multiple-disk setups such as raid (which isn't too important on a sheeva).  I may build it in just to get rid of that warning (I hadn't noticed it on the earlier rc's).
467  Linux Stuff / General Linux questions / Re: Network: writes fast / reads slow? on: April 30, 2009, 05:41:37 PM
rc4 is not a debug build.  So far it seems to work great.  I put debugging in rc3 due to the NULL referernce errors that were popping up ocassionally.
468  Linux Stuff / General Linux questions / Re: Network: writes fast / reads slow? on: April 30, 2009, 04:15:00 PM
My raw iperf rate with sheeva is 624Mbits/sec as client, 576Mbits/sec as server.  So my numbers are a lot more consistent than yours.  I'd probably chock that up to using Linux on both ends.

In the case of my data rate being 100MB to the sheeva and 20MB from the sheeva.  I'm kinda thinking it has to do with using the NFS sync flag on my server.  It seems to me that sync causes the server to block until the write has finished.  I'm not too concerned over it though, since my clients do a lot more reads from the server than writes.
469  Linux Stuff / General Linux questions / Re: Network: writes fast / reads slow? on: April 30, 2009, 02:46:01 PM
Can you run iperf between the machines?  I ran iperf last night on a kernel that had debugging enabled and it was running in the range of 200Mbits/sec.  After installing a kernel with debugging disabled (2.6.30-rc4) it's running at 644Mbits/sec.  An Athlon machine runs at 926 Mbits/sec.

644 is acceptable but 200 just didn't seem like it was enough.  I tweeked a lot of ipv4 settings trying to get my speed up and now I realize the settings weren't a problem.  It was just debugging slowing it down.

I did a timed copy of a 50M file to the sheeva and it did about 100MB sec, copying from the sheeva did about 20MB sec.  This of course is to/from a Linux server.  Scp was wayyy slower, the little sheeva just can't keep up with then encryption.
470  Linux Stuff / Kernel / 2.6.30-rc4 new release on: April 30, 2009, 11:33:22 AM
Release candidate 4 is now available.  I've added support for netfilter/iptables.  With any luck the NULL pointer dereference that affected rc3 is fixed.

Kernel and modules are available from the following locations:

IPV4: http://sheeva.with-linux.com/sheeva/

IPV6: http://sheeva6.with-linux.com/sheeva/

Features IPV6, CIFS, NFS4, EXT3, EXT4, JFS, XFS, FUSE(for ntfs-3g), usb-serial, uvcvideo.
471  Linux Stuff / Kernel / Re: 2.6.30-rc2 and 2.6.30-rc3 new releases on: April 30, 2009, 08:13:57 AM
Thank you both for your comments.  It's nice to know my kernels are being used.  It's also nice to know the installer (README) is working as advertised.
472  Linux Stuff / Kernel / Re: Trying to install 2.6.30-rc2 on: April 27, 2009, 01:17:58 PM
"nandwrite /dev/mtd2 /ubuntu-9.0.5.Release.jffs2" should work just fine it's straight out of Marvell's doc. "-p" is for the kernel image not for the filesystem.

Again, you probably also need to put "rootfstype=jffs2" in your bootargs.
473  Linux Stuff / Kernel / Re: Trying to install 2.6.30-rc2 on: April 27, 2009, 12:58:36 PM
Add rootfstype=jffs2 to your boot args and you should be golden.  Of course I'm assuming you rewrote your rootfs when you changed your partition locations.
474  Linux Stuff / Kernel / Re: Trying to install 2.6.30-rc2 on: April 27, 2009, 12:49:34 PM
Like kilowatt mentioned.

setenv mainlineLinux yes
setenv arcNumber 2097

If you didn't set those it won't boot.
475  Linux Stuff / Kernel / Re: Trying to install 2.6.30-rc2 on: April 27, 2009, 12:23:44 PM
The first time I booted after reflashing the kernel I got hung just like that.  Then I did a hard reset and it worked fine.  Yeah, your getting close....almost there.
476  Linux Stuff / Kernel / Re: Trying to install 2.6.30-rc2 on: April 27, 2009, 08:39:55 AM
"mtdparts=nand_mtd ..." is correct for a 2.6.22.x kernel.
"mtdparts=orion_nand ..." is correct for a 2.6.30 kernel.

So If you are booting the 2.6.30 kernel over tftp, you need to change that.  I noticed that if you boot with an incorrect mtdparts for the 2.6.30 kernel, the 2.6.30 kernel seems to figure out the "old" partitions.  Which sounds like what you're seeing.

You definately need to use "orion_nand" once you're ready to boot the 2.6.30 kernel from nand.
477  General Category / General Discussion / Re: SD root filesystem flies! on: April 25, 2009, 09:46:10 PM
Quote
Well /dev is a udev filesystem so no I don't have a /dev/ttyS0 in the flash itself, but I do have the mount point.

That would be a problem.  It has to have a limited set of device drivers in /dev (including ttyS0) when the kernel boots.  The kernel needs ttyS0 BEFORE udev is started.
478  Hardware and U-Boot firmware / Hardware / Re: Control the Green and Blue LEDs on: April 25, 2009, 10:01:43 AM
Actually the ip args are only applicable if you are mounting root over nfs.  So they shouldn't be important in your case.  The first IP address is the IP you want assigned to the sheeva.  The second and third args are the ip address of the server.
479  Linux Stuff / Linux distributions / Re: Kernel panic - not syncing: No init found on: April 25, 2009, 08:18:29 AM
Based on the "Writing Jaunty Filesystem" doc you don't use "-p" when writing the jffs2 partition.  You do use it to write the kernel image.
480  Hardware and U-Boot firmware / Hardware / Re: Control the Green and Blue LEDs on: April 25, 2009, 07:29:25 AM
To upgrade to 2.6.30 read the readme http://sheeva.with-linux.com/sheeva/README-2.6.30-rc2
Then download the readme to the sheeva.  Then run it (don't forget to set the U-Boot args.  I linked the rc2 rather than the rc3, since rc3 has some minor issues that should be fixed in rc4.


Here's a thread on the topic.

http://openplug.org/plugforum/index.php?topic=145.0
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