[PATCH] sched_getaffinity() fails with -EINVAL

[Ulrich Drepper]

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On 02/18/2010 04:21 AM, Sharyathi Nagesh wrote:
>   	We are observing that ltp test case getcpu01.c is failing in some of
> the machines. In the test case: system call to sched_getaffinity()
> fails. Linux kernel is giving EINVAL on call to sched_getaffinity().

You don't understand the concept of binary compatibility, do you?  You
cannot change the size of a type.

It is unfortunate that the type isn't large enough but it's what it is.
 The size was chosen based on what the kernel people said at that time.
 Regardless, even a larger number doesn't guarantee it'll work in future.

All code will have to use the dynamically sized CPU sets.  Use the *_S
macros to handle them.

- -- 
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖
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