[Bug 1817] Variable _Thread_Heir is not protected against interrupts
bugzilla-daemon at rtems.org
bugzilla-daemon at rtems.org
Thu Sep 22 14:20:04 UTC 2011
https://www.rtems.org/bugzilla/show_bug.cgi?id=1817
--- Comment #9 from Sebastian Huber <sebastian.huber at embedded-brains.de> 2011-09-22 09:20:03 CDT ---
(In reply to comment #8)
> Yes, you are right, if you consider *a=b as atomic instruction, the
> _ISR_Disable
> *a = b;
> _ISR_Enable
> … is unnecessary. Please just keep in mind the final assembly code, which is
> not atomic.
Yes, you are right. We have a read and a write.
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