Segmentation faults in Mike's test suite when running qemu-arm on x86_64

[agentzh]

I'm always seeing the following 2 test failures due to crashes in qemu-arm when running Mike's test suite in the openresty/luajit2-test-suite github repo with a cross-compiled build of LuaJIT (both the official v2.1 branch and our v2.1-agentzh branch):

Failed test when running /home/agentzh/git/luajit2-test-suite/arm-luajit wbarrier_jit.lua 1: 139
...
Failed test when running /home/agentzh/git/luajit2-test-suite/arm-luajit parse_andor.lua 1: 139
...
2 tests failed.

Not sure if they are reproducible on real ARMv7hf hardware.

[siddhesh]

I didn't see this with my fork, I'll check with openresty and report back.

[siddhesh]

OK, so I don't see this because the misc/* tests are not run by default by the test.lua setup. I need to fix that.

Meanwhile, I ran the tests individually with qemu-arm and saw the segfault. I also ran wbarrier_jit.lua undner qemu-system-arm and it worked just fine. It looks like a bug in qemu-arm, I'll dig in a bit more and report back.