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Re: exercising current aarch64 kprobe support with systemtap
On 08/17/2016 09:36 AM, William Cohen wrote:
> Hi,
>
> I was able to locally build uptream_arm64-devel branch of
> https://github.com/pratyushanand/linux.git with the configure
> from fedora rawhide and run the systemtap tests. Pratyush were
> there changes in patches between these versions? The only other
> difference is that the machine above was a fedora 24 machine rather
> than a RHELSA, so there would be differences in the compiler and
> other tools. The results (systemtap.log and systemtap.sum) are at:
>
> http://people.redhat.com/wcohen/aarch64/20160817/
... stuff deleted ...
> There are also some differences in the syscalls used on aarch64 that
> cause some of the tests to fail.
I looked a bit at those syscall failures, and I'm not sure what is going
on. Note that the syscall/nd_syscall test cases pass completely on RHEL7
aarch64. I did see one easy fix - you were getting registration errors
for the sched_[gs]etaffinity syscalls. Commit 619425f makes them fully
optional.
I'd need access to that machine to debug the other syscall failures further.
--
David Smith
dsmith@redhat.com
Red Hat
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