[LLVMdev] HELP! Recent failure on llvm buildbot

Matthew Gardiner mg11 at csr.com
Fri Sep 5 06:22:34 PDT 2014


Hi Renato

Thanks for laying out the strategy.... but yeah, when I said "blame" I 
was just repeating the buildbot's message. I don't take offense too 
easily... ;-)

Matt

Renato Golin wrote:
> On 5 September 2014 13:38, Matthew Gardiner <mg11 at csr.com> wrote:
>> I'm now being blamed by a buildbot for this
> Hi Matt,
>
> Don't worry, no one is "blaming" you. :)
>
> Builds fail for various reasons, sometimes it's your commit, sometimes
> it's a commit on a repository that is not tracked by that bot,
> sometimes it's a bot issue.
>
> In this case, the bot is unstable and I'm working to get us more
> stable ARM bots as we speak, but for the time being, the rule of thumb
> is this:
>
> When you get a mail from a buildbot failure, you:
>
> 1. Click on the link and inspect the error. If it's obviously you,
> please fix it asap or revert the patch. Also, ping the IRC channel and
> reply to the email (which will have arrived to all other committers)
> that you're looking into it, so they don't have to worry.
>
> 2. If it's not obviously you, check:
> 2a. The stdio output of the red bits for timeouts, internal compiler
> error, no space left on disk, lost connection. These are bot problems,
> ignore for now, but keep an eye to make sure the next builds are
> green.
> 2b. Or, the tests failing, and if the test was added or changed by
> another commit on the same build, feel free to reply the email asking
> the developer to look into it.
> 2c. Or, that the failure can be reproduced in your machine and try to
> see if there's anything you did that could come to that.
>
> If it was your commit, sometimes, you'll need help from the
> maintainer, for instance, if this is an ARM specific failure.
>
> Every bot has an owner and, if it's your fault, you should email the
> owner if he hasn't contacted you yet. Not everyone does that, and bot
> owners know that they should wait a bit to spot if any "fixing bots"
> commit is coming through before calling foul. Though, we generally
> mail you anyway, just to make sure you are aware of the problem.
>
> Some of us try to bisect on our own hardware and will pinpoint the
> offending commit and work with the developer to fix it. Some of us may
> even provide you access to a board so you can debug your own code on
> our architecture.
>
> If that takes more than a few days, reverting the commit is probably
> best. You should revert your own commits, or work with whomever is
> reverting it, to make sure nothing is removed by accident (multiple or
> old commits are harder to revert).
>
> If that takes even longer, you should create a bugzilla report,
> copying the owner of the bot, architecture code owner, etc and work
> from there.
>
> If that feature/bugfix is *really* important to you, please make
> everyone aware by marking the bug as so, and display interest and
> pro-activity when dealing with the fixes and investigation. Also, let
> us know if that needs back-porting to the current releases' patch
> release (3.5.1 etc) and contact the point-release manager, which may
> change, so enquire on the list.
>
> Hope that helps,
>
> cheers,
> --renato
>
>
>   To report this email as spam click https://www.mailcontrol.com/sr/MZbqvYs5QwJvpeaetUwhCQ== .



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