Re: [RFC PATCH 3/3] tests/qtest/vnc-display-test: Disable on Darwin

["Daniel P. Berrangé" <berrange@redhat.com>]

On Thu, Jan 19, 2023 at 01:05:14PM +0100, Philippe Mathieu-Daudé wrote:
> This test is failing in gtk-vnc on Darwin:
> 
>   $ make check-qtest-aarch64
>   ...
>   19/20 qemu:qtest+qtest-aarch64 / qtest-aarch64/vnc-display-test
>   ERROR **: 10:42:35.488: vnc-error: Unsupported auth type 17973672
> 
> While QEMU picks the sigaltstack coroutine backend, gtk-vnc uses
> the ucontext coroutine backend, which might be broken on Darwin.

s/might be/is completely and utterly/

The struct ucontext_t definition on macOS aarch64 is too small,
and so getcontext() smashes past the end of the struct overwriting
whatever follows the ucontext_t struct.



> 
> Disable this test (current problem being investigated in this thread:
> https://lore.kernel.org/qemu-devel/Y8kw6X6keB5l53nl@redhat.com/).
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
>  tests/qtest/vnc-display-test.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>


But keep an eye on this bug:

  https://github.com/Homebrew/homebrew-core/issues/115413

if it gets fixed before you send a PULL request, we can drop
this patch, or failing that, revert it later.

With regards,
Daniel
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