linux-kernel - Re: linux-next: Tree for Jan 12 (build failures: m68k, ppc)

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Date:	Mon, 12 Jan 2015 08:24:38 -0800
From:	Guenter Roeck <linux@...ck-us.net>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Rob Clark <robdclark@...il.com>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	linuxppc-dev@...ts.ozlabs.org, linux-m68k@...ts.linux-m68k.org
Subject: Re: linux-next: Tree for Jan 12 (build failures: m68k, ppc)

On Mon, Jan 12, 2015 at 06:03:22PM +1100, Stephen Rothwell wrote:
> Hi all,
> 
> Changes since 20150109:
> 
> The usb-gadget-fixes tree gained a conflict against the usb.current tree.
> 
> The net-next tree gained a build failure for which I reverted a commit.
> 
> The pinctrl tree gained a build failure so I used the version from
> next-20150109.
> 
> The akpm tree lost a few patches that turned up elsewhere.
> 
> Non-merge commits (relative to Linus' tree): 2202
>  2272 files changed, 69868 insertions(+), 38441 deletions(-)
> 

Build failures, seen since next-20150109:
	m68k:allmodconfig
	powerpc:ppc6xx_defconfig

Due to:
	ERROR: "__get_user_bad" [drivers/gpu/drm/drm.ko] undefined!
	make[1]: *** [__modpost] Error 1

Caused by commit d34f20d6e2f (drm: Atomic modeset ioctl).

Bisect results:

# bad: [39b673bba50275b516543d32ef78767a524b9f26] Add linux-next specific files for 20150109
# good: [b1940cd21c0f4abdce101253e860feff547291b0] Linux 3.19-rc3
git bisect start 'HEAD' 'v3.19-rc3'
# good: [d01312ff089667b0b996228ca165d4a9c124b28f] Merge remote-tracking branch 'net-next/master'
git bisect good d01312ff089667b0b996228ca165d4a9c124b28f
# bad: [b90b3ee4f96067f9eb2edf9e61c9f6356b796232] Merge remote-tracking branch 'device-mapper/for-next'
git bisect bad b90b3ee4f96067f9eb2edf9e61c9f6356b796232
# bad: [d4a32441dd063fd10f41826a69dea2b3f410501a] Merge remote-tracking branch 'drm-intel/for-linux-next'
git bisect bad d4a32441dd063fd10f41826a69dea2b3f410501a
# good: [d01203fd1b8c822adbadb0f0e417a7d344456150] Merge remote-tracking branch 'crypto/master'
git bisect good d01203fd1b8c822adbadb0f0e417a7d344456150
# good: [2be57922d46fdec4360ced2eb108832c5a90bc0e] drm/i915: Fix CRC support for DP port D on CHV
git bisect good 2be57922d46fdec4360ced2eb108832c5a90bc0e
# bad: [4baddea51fe5d73a4f2226e9febc6da21e11bac0] Merge remote-tracking branch 'drm/drm-next'
git bisect bad 4baddea51fe5d73a4f2226e9febc6da21e11bac0
# good: [72a3697097b8dc92f5b8362598f5730a9986eb83] Merge branch 'topic/core-stuff' into topic/atomic-core
git bisect good 72a3697097b8dc92f5b8362598f5730a9986eb83
# bad: [a97df1ccd3c30f16385696964767adf854878021] drm/atomic: Hide drm.ko internal interfaces
git bisect bad a97df1ccd3c30f16385696964767adf854878021
# good: [88a48e297b3a3bac6022c03babfb038f1a886cea] drm: add atomic properties
git bisect good 88a48e297b3a3bac6022c03babfb038f1a886cea
# good: [6b4959f43a04e12d39c5700607727f2cbcfeac31] drm/atomic: atomic plane properties
git bisect good 6b4959f43a04e12d39c5700607727f2cbcfeac31
# bad: [d34f20d6e2f21bd3531b969dc40913181a8ae31a] drm: Atomic modeset ioctl
git bisect bad d34f20d6e2f21bd3531b969dc40913181a8ae31a
# good: [ae16c597b61ae4613b13a0c3fac302e8d8827ac7] drm/atomic: atomic connector properties
git bisect good ae16c597b61ae4613b13a0c3fac302e8d8827ac7
# first bad commit: [d34f20d6e2f21bd3531b969dc40913181a8ae31a] drm: Atomic modeset ioctl
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