Comment 15 for bug 1017972

libunwind upstream expects a certain number of know failures for each of the primary archs it supports.

Some of these are documented in the README provided by upstream

x86_64 has the least test failures; I've been able to either cherry pick fixes or provider workarounds in most of the tests. Two are testing unsupported features - so can be disabled.

Upstream's recommendation was to enable the amd64 test suite.