Re: [PATCH v3 4/5] tests/qtest/vhost-user-blk-test: Temporary hack to get tests passing on aarch64

[Eric Auger]

Hi Alex,

On 4/6/22 7:34 PM, Alex Bennée wrote:
> Eric Auger <eric.auger@redhat.com> writes:
>
>> When run on ARM, basic and indirect tests currently fail with the
>> following error:
>>
>> ERROR:../tests/qtest/libqos/virtio.c:224:qvirtio_wait_used_elem:
>> assertion failed (got_desc_idx == desc_idx): (50331648 == 0)
>> Bail out! ERROR:../tests/qtest/libqos/virtio.c:224: qvirtio_wait_used_elem:
>> assertion failed (got_desc_idx == desc_idx): (50331648 == 0)
>>
>> I noticed it worked when I set up MSI and I further reduced the
>> code to a simple guest_alloc() that removes the error. At the moment
>> I am not able to identify where ths issue is and this blocks the
>> whole pci/aarch64 enablement.
>>
>> Signed-off-by: Eric Auger <eric.auger@redhat.com>
> Hi Eric,
>
> I sent a RFC patch which I think avoids the need for this hack:
>
>   Subject: [RFC PATCH] tests/qtest: properly initialise the vring used idx
>   Date: Wed,  6 Apr 2022 18:33:56 +0100
>   Message-Id: <20220406173356.1891500-1-alex.bennee@linaro.org>
>
Indeed this fixes my issue! Many thanks for the debug & fix.

I will respin with your R-b's.

Eric