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Date: Mon, 6 Jun 2016 18:43:47 -0400 From: Javier Martinez Canillas <javier@....samsung.com> To: Tyler Baker <tyler.baker@...aro.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org> Cc: "kernelci.org bot" <bot@...nelci.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, torvalds@...ux-foundation.org, Andrew Morton <akpm@...ux-foundation.org>, Guenter Roeck <linux@...ck-us.net>, shuah.kh@...sung.com, patches@...nelci.org, stable@...r.kernel.org, Kevin Hilman <khilman@...libre.com>, Matt Hart <matt.hart@...aro.org>, Mark Brown <broonie@...nel.org> Subject: Re: [PATCH 4.6 000/121] 4.6.2-stable review Hello, On 06/06/2016 06:32 PM, Tyler Baker wrote: > On 6 June 2016 at 06:55, Kevin Hilman <khilman@...libre.com> wrote: >> kernelci.org bot <bot@...nelci.org> writes: >> >>> stable-queue boot: 73 boots: 3 failed, 68 passed with 2 offline (v4.6.1-121-g2276ff7d4bf9) >>> >>> Full Boot Summary: https://kernelci.org/boot/all/job/stable-queue/kernel/v4.6.1-121-g2276ff7d4bf9/ >>> Full Build Summary: https://kernelci.org/build/stable-queue/kernel/v4.6.1-121-g2276ff7d4bf9/ >>> >>> Tree: stable-queue >>> Branch: local/linux-4.6.y.queue >>> Git Describe: v4.6.1-121-g2276ff7d4bf9 >>> Git Commit: 2276ff7d4bf9c438832f761ffd525cacf55362cd >>> Git URL: git://server.roeck-us.net/git/linux-stable.git >>> Tested: 28 unique boards, 9 SoC families, 16 builds out of 100 >>> >>> Boot Failures Detected: https://kernelci.org/boot/?v4.6.1-121-g2276ff7d4bf9&fail >>> >>> arm64: >>> >>> defconfig: >>> apq8016-sbc: 1 failed lab >>> >>> defconfig+CONFIG_RANDOMIZE_BASE=y: >>> apq8016-sbc: 1 failed lab >> >> Theses two are real boot regressions, bisections forthcoming. > > I have bisected[1] these two failures down to 5e3ca2b349b1 > ("regulator: Try to resolve regulators supplies on registration") and > confirmed that reverting this patch on top of this stable queue fixes > the boot issue. > > Adding Mark B. and Javier C. to this thread for discussion. > I'm not familiar with the apq8016-sbc board or Qualcomm platforms in general but this patch is known to cause deadlocks when looking up regulators that were not registered via OF. This was an issue on at least some Nvidia boards. So since this patch made it to stable, commit a21513742308 ("regulator: Fix deadlock during regulator registration") [0] should also be included. > Cheers, > > Tyler > > [1] http://hastebin.com/ewudewufaz.vbs > [0]: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a21513742308 Best regards, -- Javier Martinez Canillas Open Source Group Samsung Research America
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