Hi Stefan, On Thu, Jun 27, 2013 at 9:12 PM, Stefan Roese <s...@denx.de> wrote:
> Hi Simon, > > On 06/28/2013 04:14 AM, Simon Glass wrote: > > I can create something with or without compression and I cannot see the > > failure. Tom is seeing it though. I will see if I can get another board > > to try. If you have any ideas please let me know. > > Sorry, but I don't have any ideas. I also checked the parameters of the > gunzip call. And they were identical in the working (before this patch) > and non-working version (with this patch). gunzip() just didn't return. > > One idea: It might have something to do with the interrupt disabling, as > powerpc compresses to 0. And thats the location of the interrupt vectors > (timer?). Just an idea. Do you remember shuffling the > disable_interrupts() call around? > Hmmm yes I did shuffle them around, figuring that the interrupts needed to be disabled before booting the OS but not before loading it. It seems like I made a bad assumption here. I have been through the code multiple times and I cannot see a difference in operation. Also it does work correctly on the ARM platforms I have tried. It is broken on Tom's ARM platform, but perhaps that could be an interrupt issue also. I am going to post a patch to restore the interrupt code to where it was, hoping that this shows some difference for your error. I will also post a couple of revert patches for those who are blocked on this. We will have to apply reverts fairly soon if the solution doesn't present itself. > I'll check myself in a few hours. > OK please let me know if you find anything else. Thanks for your help. Refactoring code is a tricky business...I much prefer the new bootm code, if it can work on all platforms. Regards, Simon
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