Wow, this is a great catch, Ben! Kudos! 👍 --a
> On 11 Feb 2021, at 20:18, Benoit Ganne (bganne) via lists.fd.io > <bganne=cisco....@lists.fd.io> wrote: > > Hi Dave, > >> There are still 6 ikev2 test failures from this test run that need to be >> resolved. > > I identified the issue: undefined behaviour + aggressive gcc optimization. > The tentative fix is here: https://gerrit.fd.io/r/c/vpp/+/31240 > > Note that for this to happen, you need both: > - compile with gcc > - use gcc memcpy builtin > This is the case for ARM64 but not x86, as we do not use gcc memcpy builtin > on x86. > > It looks like there are other cases where we call memcpy with NULL pointers: > https://gerrit.fd.io/r/c/vpp/+/31241 > I am going to chase them down. > > Best > ben > > > >
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