[llvm-dev] buildbot failure in LLVM on clang-cmake-thumbv7-a15-full-sh

[David Blaikie via llvm-dev]

On Tue, Sep 29, 2015 at 10:41 AM, David Blaikie <dblaikie at gmail.com> wrote:

>
>
> On Tue, Sep 29, 2015 at 10:38 AM, Renato Golin <renato.golin at linaro.org>
> wrote:
>
>> On 29 September 2015 at 18:22, David Blaikie <dblaikie at gmail.com> wrote:
>> > This buildbot looks like it's been failing since Friday - does anyone
>> > know/own/care about it?
>>
>> Yes, we're looking into it.
>>
>> As you probably noticed, debugging ARM buildbots are not easy, not
>> fast. Reverting commits at random also don't help with the problem,
>> and bisecting can take days, if not weeks.
>
>
Also - if the blame list isn't short enough to provide effective/actionable
blame for the actual developer who caused the regression, sending email
seems noisy and unhelpful. This seems like a buildbot that should just be
emailing you (and anyone else tasked with/interested in investigating these
failures), not a long list project contributors?


> So the one week rule to
>> disable bots is too harsh on those bots.
>>
>
> Is it? While it's failing, the buildbot doesn't seem to be any use to the
> community at large - it's essentially the buildbot owners problem at that
> point and probably shouldn't be engaging with the community until it's
> green again, I think?
>
> Is the buildbot useful to you during this time? Or are you debugging
> elsewhere/privately?
>
> If the buildbot is useful to you, but not the community at large - perhaps
> we could get in the habit of moving it into a "no email" pool whenever a
> failure occurs, until it can be cleared up. (hopefully this pool is clearly
> distinguished from the rest of the buildbots in the waterfall/grid view -
> because it'd be helpful to be able to look at an easily distinguished
> subset of the waterfall/grid and see the bots that are expected to be green
> for any developer there)
>
>
>> Also, please know that I do care a lot about *all* ARM bots (including
>> AArch64) and I do check them multiple times a day, so if they're red,
>> I'm definitely aware and trying to fix it.
>>
>> cheers,
>> --renato
>>
>
>
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