ccollins476ad commented on issue #888: kernel/os: Make sure correct stack aligment
URL: https://github.com/apache/mynewt-core/pull/888#issuecomment-371594036
Good catch. It looks like there is another related issue. `os_malloc()` doesn't always
return 8-byte aligned blocks. Some apps (e.g., slinky) malloc task stacks. If the allocated
stack is only 4-byte aligned, then we'll have this same issue. This happened to me when I
was testing the floating point printf PR with the slinky app.
Just for completeness (n1570, 7.22.3 (Memory management functions)):
> The pointer returned if the allocation succeeds is suitably aligned so that it may
be assigned to a pointer to any type of object with a fundamental alignment requirement
I have filed a separate PR for this: https://github.com/apache/mynewt-core/pull/890
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