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[Bug 1001143] Ecos crashes when using "nop" instead of "wfi"


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--- Comment #6 from John Dallaway <john@dallaway.org.uk> 2011-02-07 12:21:18 GMT ---
(In reply to comment #4)

> Hi John, what kind of information do you need?

Hi Cyrill, it looks like you are using a modified version of the STM32 timer
test with a slightly modified HAL. There are quite a number of eCos developers
working with this board and this is the first report we have received in this
area.

Realistically, it's unlikely that anyone will be willing to spend the time to
attempt to reproduce this issue due to the modifications you have made. I
suggest that you work backward towards pristine code from the position you are
in at present to try to isolate the change that is triggering the issue. Some
possible lines of enquiry:

* Does the unmodified timer test work when using "nop" instead of "wfi"?
* Does your code work when executed from RAM?
* Are there other eCos configuration changes you have made which may be
relevant?

Place a breakpoint in the assert handling code to allow you to generate a
backtrace. Post your progress to this bug report in case someone within the
community has an idea based on your findings.

BTW, I am not clear what you mean by "added a busy wait in the isr of the two
timers". Typically, you should not wait for anything within an ISR.

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