On Tue, May 14, 2019 at 02:05:05PM +0200, Daniel Vetter wrote: > On Tue, May 14, 2019 at 8:04 AM Brendan Higgins > <brendanhiggins@xxxxxxxxxx> wrote: > > > > On Mon, May 13, 2019 at 04:44:51PM +0200, Daniel Vetter wrote: > > > On Sat, May 11, 2019 at 01:33:44PM -0400, Theodore Ts'o wrote: > > > > On Fri, May 10, 2019 at 02:12:40PM -0700, Frank Rowand wrote: > > > > > However, the reply is incorrect. Kselftest in-kernel tests (which > > > > > is the context here) can be configured as built in instead of as > > > > > a module, and built in a UML kernel. The UML kernel can boot, > > > > > running the in-kernel tests before UML attempts to invoke the > > > > > init process. > > > > > > > > Um, Citation needed? > > > > > > > > I don't see any evidence for this in the kselftest documentation, nor > > > > do I see any evidence of this in the kselftest Makefiles. > > > > > > > > There exists test modules in the kernel that run before the init > > > > scripts run --- but that's not strictly speaking part of kselftests, > > > > and do not have any kind of infrastructure. As noted, the > > > > kselftests_harness header file fundamentally assumes that you are > > > > running test code in userspace. > > > > > > Yeah I really like the "no userspace required at all" design of kunit, > > > while still collecting results in a well-defined way (unless the current > > > self-test that just run when you load the module, with maybe some > > > kselftest ad-hoc wrapper around to collect the results). > > > > > > What I want to do long-term is to run these kernel unit tests as part of > > > the build-testing, most likely in gitlab (sooner or later, for drm.git > > > > Totally! This is part of the reason I have been insisting on a minimum > > of UML compatibility for all unit tests. If you can suffiently constrain > > the environment that is required for tests to run in, it makes it much > > easier not only for a human to run your tests, but it also makes it a > > lot easier for an automated service to be able to run your tests. > > > > I actually have a prototype presubmit already working on my > > "stable/non-upstream" branch. You can checkout what presubmit results > > look like here[1][2]. > > ug gerrit :-) Yeah, yeah, I know, but it is a lot easier for me to get a project set up here using Gerrit, when we already use that for a lot of other projects. Also, Gerrit has gotten a lot better over the last two years or so. Two years ago, I wouldn't touch it with a ten foot pole. It's not so bad anymore, at least if you are used to using a web UI to review code. > > > only ofc). So that people get their pull requests (and patch series, we > > > have some ideas to tie this into patchwork) automatically tested for this > > > > Might that be Snowpatch[3]? I talked to Russell, the creator of Snowpatch, > > and he seemed pretty open to collaboration. > > > > Before I heard about Snowpatch, I had an intern write a translation > > layer that made Prow (the presubmit service that I used in the prototype > > above) work with LKML[4]. > > There's about 3-4 forks/clones of patchwork. snowpatch is one, we have > a different one on freedesktop.org. It's a bit a mess :-/ Oh, I didn't realize that. I found your patchwork instance here[5], but do you have a place where I can see the changes you have added to support presubmit? > > I am not married to either approach, but I think between the two of > > them, most of the initial legwork has been done to make presubmit on > > LKML a reality. > > We do have presubmit CI working already with our freedesktop.org > patchwork. The missing glue is just tying that into gitlab CI somehow > (since we want to unify build testing more and make it easier for > contributors to adjust things). I checked out a couple of your projects on your patchwork instance: AMD X.Org drivers, DRI devel, and Wayland. I saw the tab you added for tests, but none of them actually had any test results. Can you point me at one that does? Cheers! [5] https://patchwork.freedesktop.org/ > > > super basic stuff. > > > > I am really excited to hear back on what you think! > > > > Cheers! > > > > [1] https://kunit-review.googlesource.com/c/linux/+/1509/10#message-7bfa40efb132e15c8388755c273837559911425c > > [2] https://kunit-review.googlesource.com/c/linux/+/1509/10#message-a6784496eafff442ac98fb068bf1a0f36ee73509 > > [3] https://developer.ibm.com/open/projects/snowpatch/ > > [4] https://kunit.googlesource.com/prow-lkml/ > > _______________________________________________ > > dri-devel mailing list > > dri-devel@xxxxxxxxxxxxxxxxxxxxx > > https://lists.freedesktop.org/mailman/listinfo/dri-devel
