linux-kernel - Re: [RFC][PATCH 00/31] implement atomic_fetch

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Message-ID: <874matxzj9.fsf@purkki.adurom.net>
Date:	Fri, 22 Apr 2016 21:35:06 +0300
From:	Kalle Valo <kvalo@...eaurora.org>
To:	Fengguang Wu <fengguang.wu@...el.com>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	torvalds@...ux-foundation.org, mingo@...nel.org,
	tglx@...utronix.de, will.deacon@....com,
	paulmck@...ux.vnet.ibm.com, boqun.feng@...il.com,
	waiman.long@....com, fweisbec@...il.com,
	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	rth@...ddle.net, vgupta@...opsys.com, linux@....linux.org.uk,
	egtvedt@...fundet.no, realmz6@...il.com,
	ysato@...rs.sourceforge.jp, rkuo@...eaurora.org,
	tony.luck@...el.com, geert@...ux-m68k.org, james.hogan@...tec.com,
	ralf@...ux-mips.org, dhowells@...hat.com, jejb@...isc-linux.org,
	mpe@...erman.id.au, schwidefsky@...ibm.com, dalias@...c.org,
	davem@...emloft.net, cmetcalf@...lanox.com, jcmvbkbc@...il.com,
	arnd@...db.de, dbueso@...e.de
Subject: Re: [RFC][PATCH 00/31] implement atomic_fetch_$op

Fengguang Wu <fengguang.wu@...el.com> writes:

>> OK, weirdness. I received the "BUILD SUCCESS" email without any arm64
>> builds listed, but I just received a build bot email telling me the
>> arm64 build was borked (which I know it is).
>
> Sorry, that may happen because even though most errors will be
> detected in the first hour or before the BUILD SUCCESS/DONE
> notification, the build/boot/performance tests for a particular branch
> may continue for days, during the time test coverage keeps growing.
> Which means it's possible to receive a build failure after receiving
> BUILD SUCCESS notification.
>
> In particular, 0-day bot classify 500+ kconfigs into 2 priority lists:
>
> P1: 100+ realtime priority kconfigs which should be finished before sending
>     out BUILD SUCCESS notification
>
> P2: 400+ background priority kconfigs which may take hours to days to finish
>
> That split is a tradeoff between timeliness and completeness. It turns
> out to work well as long as we choose the suitable P1 list.
>
> So the more accurate interpretation of "BUILD SUCCESS/DONE" would be:
> 0day bot is working on your tree (no worry about out-of-service) and
> reached a major milestone.

Thanks, this is very useful information. But would it be also possible
to get a report about the P2 completion (or failure)?

-- 
Kalle Valo