Re: [PATCH liburing 0/1] test: add epoll test case

From: Jens Axboe
Date: Mon Jan 27 2020 - 13:07:54 EST


On 1/27/20 11:00 AM, Stefano Garzarella wrote:
> On Mon, Jan 27, 2020 at 09:26:41AM -0700, Jens Axboe wrote:
>> On 1/27/20 9:17 AM, Stefano Garzarella wrote:
>>> Hi Jens,
>>> I wrote the test case for epoll.
>>>
>>> Since it fails also without sqpoll (Linux 5.4.13-201.fc31.x86_64),
>>> can you take a look to understand if the test is wrong?
>>>
>>> Tomorrow I'll travel, but on Wednesday I'll try this test with the patch
>>> that I sent and also with the upstream kernel.
>>
>> I'll take a look, but your patches are coming through garbled and don't
>> apply.
>
> Weird, I'm using git-publish as usual. I tried to download the patch
> received from the ML, and I tried to reapply and it seams to work here.
>
> Which kind of issue do you have? (just to fix my setup)

First I grabbed it from email, and I get the usual =3D (instead of =)
and =20 instead of a space. Longer lines also broken up, with an = at
the end.

Then I grabbed it from the lore io-uring archive, but it was the exact
same thing.

> Anyway I pushed my tree here:
> https://github.com/stefano-garzarella/liburing.git epoll

As per other email, I think you're having some coordination issues
with the reaping and submitting side being separated. If the reaper
isn't keeping up, you'll get the -EBUSY problem I saw. I'm assuming
that's the failure case you are also seeing, you didn't actually
mention how it fails for you?

--
Jens Axboe