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From: Daniel Vetter <daniel.vetter@ffwll.ch>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: ksummit <ksummit-discuss@lists.linuxfoundation.org>
Subject: Re: [Ksummit-discuss] [MAINTAINERS SUMMIT] Bug-introducing patches
Date: Fri, 7 Sep 2018 10:52:34 +0200	[thread overview]
Message-ID: <CAKMK7uEHTVPBg6SmbXdVPBqfR=KBAPz1pOZZc9qBQ60EtpH-mA@mail.gmail.com> (raw)
In-Reply-To: <CA+55aFx9hKVphfU3+aGONbg_wOx9+Ov6HF3Xkq7ZL_pW5m2CLQ@mail.gmail.com>

On Fri, Sep 7, 2018 at 5:43 AM, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
> (Side note: I think it's improving even on the hardware side. I think
> the i915 people must be running a _lot_ more testing before pushing to
> me, because while GPU issues used to be one of the areas that was one
> of the common causes, and it really hasn't been that lately).

We run a _lot_ more before even pushing to linux-next :-) I think
rule-of-thumb is that pre-merge we burn down one machine-week on every
patch series when it gets posted (every time it gets posted), and
post-merge that goes up to about a machine-month. Of course repeated
plenty of times - I think we do a handful of the one-month runs each
week, and about 20 of the one-week runs per day.

Pretty much all the things that do still slip through are for features
we haven't figured out how to test in a fully automated way (some
obscure display features - we e.g. _do_ have fully automated rigs for
hotplug testing). Everywhere else coverage is pretty awesome, because
we have lots of tests and lots of different machines.

Aside: We also subject linux-next to the same torture, so we know how
many machines will die when we pull in -rc1. It's hard to tell,
because lots of noise in the data, but I think overall system
stability of linux-next has improved. And I think it's been a while
since we last catched someone pushing untested patches to linux-next
that failed on our entire farm :-)
-Daniel
---
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch

  reply	other threads:[~2018-09-07  8:52 UTC|newest]

Thread overview: 138+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-04 20:16 [Ksummit-discuss] [MAINTAINERS SUMMIT] Bug-introducing patches Sasha Levin
2018-09-04 20:53 ` Daniel Vetter
2018-09-05 14:17   ` Steven Rostedt
2018-09-07  0:51     ` Sasha Levin
2018-09-07  1:09       ` Steven Rostedt
2018-09-07 20:12         ` Greg KH
2018-09-07 21:12           ` Greg KH
2018-09-07  1:09       ` Linus Torvalds
2018-09-07  1:49         ` Sasha Levin
2018-09-07  2:31           ` Linus Torvalds
2018-09-07  2:45             ` Steven Rostedt
2018-09-07  3:43               ` Linus Torvalds
2018-09-07  8:52                 ` Daniel Vetter [this message]
2018-09-07  8:40               ` Geert Uytterhoeven
2018-09-07  9:07                 ` Daniel Vetter
2018-09-07  9:28                   ` Geert Uytterhoeven
2018-09-07 17:05                   ` Olof Johansson
2018-09-07 14:54             ` Sasha Levin
2018-09-07 15:52               ` Linus Torvalds
2018-09-07 16:17                 ` Linus Torvalds
2018-09-07 21:39                   ` Mauro Carvalho Chehab
2018-09-09 12:50                   ` Stephen Rothwell
2018-09-10 20:05                     ` Tony Lindgren
2018-09-10 19:43                 ` Sasha Levin
2018-09-10 20:45                   ` Steven Rostedt
2018-09-10 21:20                     ` Guenter Roeck
2018-09-10 21:46                       ` Steven Rostedt
2018-09-10 23:03                         ` Eduardo Valentin
2018-09-10 23:13                           ` Steven Rostedt
2018-09-11 15:42                             ` Steven Rostedt
2018-09-11 17:40                               ` Tony Lindgren
2018-09-11 17:47                                 ` James Bottomley
2018-09-11 18:12                                   ` Eduardo Valentin
2018-09-11 18:17                                     ` Geert Uytterhoeven
2018-09-12 15:15                                       ` Eduardo Valentin
2018-09-11 18:19                                     ` James Bottomley
2018-09-12 15:17                                       ` Eduardo Valentin
2018-09-11 18:39                                   ` Steven Rostedt
2018-09-11 20:09                                     ` James Bottomley
2018-09-11 20:31                                       ` Steven Rostedt
2018-09-11 22:53                                         ` James Bottomley
2018-09-11 23:04                                           ` Sasha Levin
2018-09-11 23:11                                             ` James Bottomley
2018-09-11 23:20                                               ` Sasha Levin
2018-09-12 15:41                                                 ` Eduardo Valentin
2018-09-11 23:22                                           ` Tony Lindgren
2018-09-11 23:29                                             ` James Bottomley
2018-09-12 11:55                                               ` Geert Uytterhoeven
2018-09-12 12:03                                                 ` Laurent Pinchart
2018-09-12 12:29                                                   ` Thomas Gleixner
2018-09-12 12:53                                                     ` Laurent Pinchart
2018-09-12 13:10                                                       ` Alexandre Belloni
2018-09-12 13:30                                                         ` Thomas Gleixner
2018-09-12 23:16                                                         ` Laurent Pinchart
2018-09-12 14:11                                                       ` Thomas Gleixner
2018-09-19  8:26                                                         ` Laurent Pinchart
2018-09-20  9:02                                                           ` Rafael J. Wysocki
2018-09-20 10:10                                                             ` Laurent Pinchart
2018-09-20 11:00                                                               ` Daniel Vetter
2018-09-20 11:08                                                                 ` Laurent Pinchart
2018-09-20 11:49                                                                   ` Daniel Vetter
2018-09-12 12:36                                                 ` James Bottomley
2018-09-12 13:38                                                   ` Guenter Roeck
2018-09-12 13:59                                                     ` Tony Lindgren
2018-09-12 10:04                                             ` Mark Brown
2018-09-12 20:24                                           ` Steven Rostedt
2018-09-12 20:29                                             ` Sasha Levin
2018-09-13  0:19                                             ` Stephen Rothwell
2018-09-13 11:39                                               ` Mark Brown
2018-09-19  6:27                                                 ` Stephen Rothwell
2018-09-19 17:24                                                   ` Mark Brown
2018-09-19 21:42                                                     ` Stephen Rothwell
2018-09-11  0:49                           ` Stephen Rothwell
2018-09-11  1:01                             ` Al Viro
2018-09-11  0:47                         ` Stephen Rothwell
2018-09-11 17:35                           ` Linus Torvalds
2018-09-11  0:43                       ` Stephen Rothwell
2018-09-11 16:49                         ` Guenter Roeck
2018-09-11 17:47                           ` Guenter Roeck
2018-09-11 11:18                       ` Mark Brown
2018-09-11 17:02                         ` Guenter Roeck
2018-09-11 17:12                           ` Jani Nikula
2018-09-11 17:31                             ` Mark Brown
2018-09-11 17:41                               ` Daniel Vetter
2018-09-11 18:54                                 ` Mark Brown
2018-09-11 18:03                             ` Geert Uytterhoeven
2018-09-11 17:22                           ` James Bottomley
2018-09-11 17:56                             ` Mark Brown
2018-09-11 18:00                               ` James Bottomley
2018-09-11 18:16                                 ` Mark Brown
2018-09-11 18:07                             ` Geert Uytterhoeven
2018-09-12  9:09                             ` Dan Carpenter
2018-09-11 17:26                           ` Mark Brown
2018-09-11 18:45                           ` Steven Rostedt
2018-09-11 18:57                             ` Daniel Vetter
2018-09-11 20:15                               ` Thomas Gleixner
2018-09-12  9:03                           ` Dan Carpenter
2018-09-10 23:01                     ` Eduardo Valentin
2018-09-10 23:12                       ` Steven Rostedt
2018-09-10 23:32                         ` Eduardo Valentin
2018-09-10 23:38                           ` Guenter Roeck
2018-09-10 23:38                     ` Sasha Levin
2018-09-07  2:33           ` Steven Rostedt
2018-09-07  2:52           ` Guenter Roeck
2018-09-07 14:37             ` Laura Abbott
2018-09-07 15:06               ` Sasha Levin
2018-09-07 15:54                 ` Laura Abbott
2018-09-07 16:09                   ` Sasha Levin
2018-09-07 20:23                     ` Greg KH
2018-09-07 21:13                       ` Sasha Levin
2018-09-07 22:27                         ` Linus Torvalds
2018-09-07 22:43                           ` Guenter Roeck
2018-09-07 22:53                             ` Linus Torvalds
2018-09-07 22:57                               ` Sasha Levin
2018-09-07 23:52                                 ` Guenter Roeck
2018-09-08 16:33                                 ` Greg Kroah-Hartman
2018-09-08 18:35                                   ` Guenter Roeck
2018-09-10 13:47                                     ` Mark Brown
2018-09-09  4:36                                   ` Sasha Levin
2018-09-10 16:20                             ` Dan Rue
2018-09-07 21:32                 ` Dan Carpenter
2018-09-07 21:43                   ` Sasha Levin
2018-09-08 13:20                     ` Dan Carpenter
2018-09-10  8:23                     ` Jan Kara
2018-09-10  7:53                   ` Jan Kara
2018-09-07  3:38           ` Al Viro
2018-09-07  4:27           ` Theodore Y. Ts'o
2018-09-07  5:45             ` Stephen Rothwell
2018-09-07  9:13             ` Daniel Vetter
2018-09-07 11:32               ` Mark Brown
2018-09-07 21:06               ` Mauro Carvalho Chehab
2018-09-08  9:44                 ` Laurent Pinchart
2018-09-08 11:48                   ` Mauro Carvalho Chehab
2018-09-09 14:26                     ` Laurent Pinchart
2018-09-10 22:14                       ` Eduardo Valentin
2018-09-07 14:56             ` Sasha Levin
2018-09-07 15:07               ` Jens Axboe
2018-09-07 20:58                 ` Mauro Carvalho Chehab

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