Latest Rockbox not working on Nano

[danhibiki]

What is the most recent SVN revision you've tried, not compiled yourself but downloaded from our build server?

What bootloader version are you running?

As I said, Rockbox ran fine on my Nano using revisions you said didn't work, and as well you've showed signs that there is some strangeness to your partition. Have you tried reformatting and restoring your iPod and then re-installing Rockbox? Have you tried running a few disk checking utilities?

Just because one revision seems to be working doesn't make it set in stone that your disk isn't bad. Whatever it is, it's very likely something specific to just your iPod, otherwise other people would be having this problem, as I've said.

Have you gone back and tried older revisions to ensure they're all still working?

Just tested r14015 with no luck. Same ".rockbox directory not found" message. It is interesting that r13991 ("Stop the occasional crashes (most often 'undefined instruction') on PP5020 (and PP5022?) targets.") didn't have these disk issues but the newest ones have.

Every time I'm reporting on this thread I try to use official builds, the only time I did not use it was to try r13762 because there is no archived build for it.

I have no idea which bootloader version I'm running right now, I installed it through rbutil and this version doesn't show any messages (past versions did).

I have restored it a few times to test and scanned it with chkdsk, I've talked with linuxstb on IRC and he recommended me to do so. Here is the IRC log if you want to take a look at it: http://www.rockbox.org/irc/reader.pl?date=20070712

Haven't tried many older builds besides the working one, but I can try.

[Llorean]

When he suggested you restored, you said you were using iPodPatcher. Does this mean you never did a full restore (using iTunes to rebuild the partition table)?

[Farpenoodle]

Couple of errors I got after deleting .rockbox and using official r14008.
Interesting to note that when I checked out my .rockbox folder there was some of the same data corruption issues the thread opener was experiencing.

Prefetch abort at 41116908
Data abort at 01F00034
Prefetch abort at 41F0C038
Undefined instruction at 01F000A8

That's what I got before it stopped giving me errors. More data corruption. Back to r14001 until I can try a full restore.

I find it interesting that danhibiki's nano broke on a earlier version than mine did. Although I've been having problems with builds before r14004. I have no idea when exactly this started happening and it really might just be my flash going bad. I'll probably try a build of r13672 and see if that clears up my problems as well.

Anyway I'm going to bed.

[Llorean]

I asked you to re-download the current version of Rockbox. When you posted that it was no longer 14008.

Please, try to follow my instructions exactly.

And give very specific details on what you were doing when the crash happens.

[danhibiki]

That day I was on IRC, I restored my nano with iTunes every time I was testing a different build. So it was like new (as Apple says) each time I tried.

[Llorean]

Well, try random earlier builds, I guess. As I said, I'm using it without any problems on a Nano, so the most likely cause is still some hardware issue with yours. As it is, the changes made have brought the way Rockbox handles the CPU more in line with the original firmware, if I understand correctly, so if the original firmware works, Rockbox should now be *more* likely to work properly.

[Farpenoodle]

In all cases the error occurs when I browse to an mp3 file in the root of my player and try to play it. I seem to be able to navigate the menus just fine. Sorry about not using the current build at the time. Wasn't watching the changelog and didn't see the extra PP fixes.

But for what it's worth, current (r14019) doesn't work either. More error messages. Ocassionally codec failure will flash on the screen a couple of times before showing the error.

Undefined instruction at EDBAE050
Data abort at 01F04D74
Undefined instruction at 006C382C
Undefined instruction at 01F00754
Undefined instruction at 01F000A0
Undefined instruction at 006C3808
Undefined instruction at 40001BBC
Undefined instruction at EDBAE064

[Llorean]

Could you try playing a different format and see if the errors are the same?

[Farpenoodle]

I'll try. But I'm going out soon.

MPC file

Data abort at 01FD9874
Data abort at 01F06188
Data abort at 01F06188
Data abort at 01FD9874
Data abort at 01F07ABC
Undefined instruction at EDBAE068
Undefined instruction at EDBAE058
Undefined instruction at EDBAE04C
Undefined instruction at 00079080
Undefined instruction at EDBAE058


Vorbis file

Prefetch abort at 65646F62
Undefined instruction at EDBAE058
Data abort at 01F000C0
Undefined instruction at 00F00018
Prefetch abort at 65646F62
Undefined instruction at 00070E84
Prefetch abort at 41F119F8 (Metadata loaded to screen and codec failure flashed before giving error)
Undefined instruction at EDBAE054 (Metadata again loaded and flashed codec failure. Did this a couple of times trying to play the other files in the directory before crashing.)
Undefined instruction at EDBAE04C (Same)

Will try a 13672 build and see if it fixes my other problem.

[Llorean]

Could both of you tell me the version of the original firmware currently on your device?

As well, farpenoodle, have you ever installed iPod Linux?

[tvg]

May be this could investigate the situation.
http://forums.rockbox.org/index.php?topic=11817.0
Sorry if I'm not in topic.

[danhibiki]

I have the most updated Apple OS that I know of, version 1.3.1

[Llorean]

So far, everyone experiencing problems has been using 1.3 or 1.3.1, while I'm using 1.2. It's *possible* this is the cause, but I really need to find someone with 1.2 who has access to a Windows machine to upgrade and test.

If all else fails, I'll have access in a week or two and will sacrifice mine to the upgrade.

[bascule]

I could do that. I have a Rockboxed nano on an older Apple firmware version (can't verify which ATM, because I'm just charging it.

I'd happily have a go. I can also compile earlier builds and test them out if required prior to doing the Apple upgrade. I presume you can't then downgrade the Apple firmware?

[Llorean]

It should be possible to downgrade the apple firmware, but downgrading the flash is questionable. As in, it should be doable, but it may not be as easy. The on-disk firmware can just be overwritten with an older apple_os.ipod generated by iPodPatcher, but it *may* not be willing to flash an older flash image (we'd have to write it to the device, and set the flag that says it needs to be written, and of course we need a means to verify the image is good first as we wouldn't want it flashing a bad image).

If you're using a version pre 1.3, what I'd like to ask is that you upgrade to the current build of Rockbox, play around a while, make sure playback seems normal. Then in the Debug menu, dump the ROM contents, and back that file up somewhere. Then upgrade your Apple firmware. It *should* do the flash update (ask that you plug in, and show a progress bar). After that, reinstall the Rockbox bootloader, and see if you're now unable to play any music (the sorts of errors reported in this thread.) Be aware, if this *is* the cause it may be some time before there's a fix (depending on what aspect is the cause.) If your iPod *is* now experiencing the crashes, dump the ROM contents again. Hopefully I can talk someone who knows what they're doing into comparing the two files to see if they handle hardware initialization differently.

If you have any doubts, feel free to back out, as I said, if nobody else gets around to it, I'll sacrifice mine once I get back (assuming my laptop is repaired by then), and if you have any questions, ask them before you start so we can make sure everything gets done.

Edit 1: Compiling two builds I ask those of you having problems to try. Amiconn has some theories as to what might be the problems, these will hopefully illuminate it.

Edit 2: Please try both of these builds and let me know if either (or both) works.

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