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Message-ID: <CAOesGMjzeJYVuNzrtahNxiMk-3Huq76=DVhKixMNC=3vebUc_Q@mail.gmail.com> Date: Mon, 19 Oct 2015 09:52:44 -0700 From: Olof Johansson <olof@...om.net> To: Rob Herring <robh+dt@...nel.org> Cc: Tomeu Vizoso <tomeu.vizoso@...labora.com>, Russell King <linux@....linux.org.uk>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Michael Turquette <mturquette@...libre.com>, Stephen Boyd <sboyd@...eaurora.org>, Vinod Koul <vinod.koul@...el.com>, Dan Williams <dan.j.williams@...el.com>, Linus Walleij <linus.walleij@...aro.org>, Alexandre Courbot <gnurou@...il.com>, Thierry Reding <thierry.reding@...il.com>, David Airlie <airlied@...ux.ie>, Terje Bergström <tbergstrom@...dia.com>, Stephen Warren <swarren@...dotorg.org>, Wolfram Sang <wsa@...-dreams.de>, Frank Rowand <frowand.list@...il.com>, Grant Likely <grant.likely@...aro.org>, Kishon Vijay Abraham I <kishon@...com>, Sebastian Reichel <sre@...nel.org>, Dmitry Eremin-Solenikov <dbaryshkov@...il.com>, David Woodhouse <dwmw2@...radead.org>, Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, Felipe Balbi <balbi@...com>, Jingoo Han <jingoohan1@...il.com>, Lee Jones <lee.jones@...aro.org>, Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>, Tomi Valkeinen <tomi.valkeinen@...com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, linux-clk@...r.kernel.org, "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>, "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>, DRI mailing list <dri-devel@...ts.freedesktop.org>, "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>, "linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>, "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>, "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>, Linux PWM List <linux-pwm@...r.kernel.org>, "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>, "linux-fbdev@...r.kernel.org" <linux-fbdev@...r.kernel.org> Subject: Re: [GIT PULL] On-demand device probing On Sat, Oct 17, 2015 at 8:19 AM, Rob Herring <robh+dt@...nel.org> wrote: > On Fri, Oct 16, 2015 at 4:23 PM, Olof Johansson <olof@...om.net> wrote: >> Hi, >> >> I've bisected boot failures in next-20151016 down to patches in this branch: >> >> On Thu, Oct 15, 2015 at 4:42 AM, Tomeu Vizoso >> <tomeu.vizoso@...labora.com> wrote: >>> Tomeu Vizoso (20): >>> driver core: handle -EPROBE_DEFER from bus_type.match() >> >> The machine it happened on was OMAP5UEVM: >> >> http://arm-soc.lixom.net/bootlogs/next/next-20151016/omap5uevm-arm-omap2plus_defconfig.html > > So this one is because the MMC node numbering changed. I don't know > how to fix that other than with aliases, but that doesn't solve > backwards compatibility. Yep, aliases will take care of it in this case. This is where -next fills a great purpose, we can make sure we get those aliases added in before the patches go in. >> But I've also seen it on tegra2, that one bisected down to: >> >>> regulator: core: Probe regulators on demand >> >> http://arm-soc.lixom.net/bootlogs/next/next-20151016/seaboard-arm-multi_v7_defconfig.html > > This one you need a rootwait I think. The MMC scanning is not > guaranteed to be done before the rootfs mounting AFAIK. There may be > other problems, but we can't see them since it panics. Embarrassing, I almost always do this and I'm surprised this machine has been this stable without it. -Olof -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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