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From: Will Deacon <will.deacon@arm.com>
To: "kgene.kim@samsung.com" <kgene.kim@samsung.com>,
	"olof@lixom.net" <olof@lixom.net>,
	"dianders@chromium.org" <dianders@chromium.org>,
	"rahul.sharma@samsung.com" <rahul.sharma@samsung.com>
Cc: "linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	"linux-samsung-soc@vger.kernel.org"
	<linux-samsung-soc@vger.kernel.org>
Subject: Re: Unable to boot mainline on snow chromebook since 3.15
Date: Fri, 5 Sep 2014 13:22:32 +0100	[thread overview]
Message-ID: <20140905122232.GP13515@arm.com> (raw)
In-Reply-To: <20140905115704.GO13515@arm.com>

[Looks like it's not just Rutland that can't spell the address of the
 mailing list today. Fixed here, so please use this post in any replies].

On Fri, Sep 05, 2014 at 12:57:04PM +0100, Will Deacon wrote:
> Hi all,
> 
> I'm one of the few, foolish people to try running mainline on my 5250-based
> Samsung Chromebook (snow). I can live without wireless, usb3 and video
> acceleration, so actually it makes a reasonable development platform for
> doing A15-based (micro)-architectural work.
> 
> However, since 3.15 I've not been able to boot *any* mainline kernels on
> this board. I did mean to report this earlier, but I have other machines
> that can run mainline so this has fallen by the wayside.
> 
> The problems started with 3.16, where simple-fb would fail to initialise
> and I lost my display. Note that I don't have a serial console on this
> machine (I looked at the PCB and there's no way I can solder one of those
> myself :) I bisected the issue at the time, and I could get my display back
> by removing some of the new regulator and hdmi properties from the DT. At
> that point, I could boot, but DMA didn't initialise for the MMC controller
> so I couldn't mount my root filesystem.
> 
> With 3.17-rc3, it seems a lot worse -- I don't get any output after nv-uboot
> (i.e. the nv-uboot screen just remains on the display, with the last line
> reading "Stashed 20 records").
> 
> I'd usually try to debug this a bit further, but without a console it's
> really painful to get anywhere. I've been working with 3.15, but now I'm
> having to backport patches when I want to test them, which is more effort
> than I can be bothered with.
> 
> Is anybody else running mainline on this device and are these known/fixed
> problems?
> 
> Cheers,
> 
> Will

WARNING: multiple messages have this Message-ID (diff)
From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: Unable to boot mainline on snow chromebook since 3.15
Date: Fri, 5 Sep 2014 13:22:32 +0100	[thread overview]
Message-ID: <20140905122232.GP13515@arm.com> (raw)
In-Reply-To: <20140905115704.GO13515@arm.com>

[Looks like it's not just Rutland that can't spell the address of the
 mailing list today. Fixed here, so please use this post in any replies].

On Fri, Sep 05, 2014 at 12:57:04PM +0100, Will Deacon wrote:
> Hi all,
> 
> I'm one of the few, foolish people to try running mainline on my 5250-based
> Samsung Chromebook (snow). I can live without wireless, usb3 and video
> acceleration, so actually it makes a reasonable development platform for
> doing A15-based (micro)-architectural work.
> 
> However, since 3.15 I've not been able to boot *any* mainline kernels on
> this board. I did mean to report this earlier, but I have other machines
> that can run mainline so this has fallen by the wayside.
> 
> The problems started with 3.16, where simple-fb would fail to initialise
> and I lost my display. Note that I don't have a serial console on this
> machine (I looked at the PCB and there's no way I can solder one of those
> myself :) I bisected the issue at the time, and I could get my display back
> by removing some of the new regulator and hdmi properties from the DT. At
> that point, I could boot, but DMA didn't initialise for the MMC controller
> so I couldn't mount my root filesystem.
> 
> With 3.17-rc3, it seems a lot worse -- I don't get any output after nv-uboot
> (i.e. the nv-uboot screen just remains on the display, with the last line
> reading "Stashed 20 records").
> 
> I'd usually try to debug this a bit further, but without a console it's
> really painful to get anywhere. I've been working with 3.15, but now I'm
> having to backport patches when I want to test them, which is more effort
> than I can be bothered with.
> 
> Is anybody else running mainline on this device and are these known/fixed
> problems?
> 
> Cheers,
> 
> Will

  reply	other threads:[~2014-09-05 12:22 UTC|newest]

Thread overview: 106+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-05 11:57 Unable to boot mainline on snow chromebook since 3.15 Will Deacon
2014-09-05 12:22 ` Will Deacon [this message]
2014-09-05 12:22   ` Will Deacon
2014-09-05 13:46   ` Ajay kumar
2014-09-05 13:46     ` Ajay kumar
2014-09-05 13:56     ` Vivek Gautam
2014-09-05 13:56       ` Vivek Gautam
2014-09-08 11:17       ` Will Deacon
2014-09-08 11:17         ` Will Deacon
2014-09-05 14:12     ` Marc Zyngier
2014-09-05 14:12       ` Marc Zyngier
2014-09-05 20:25   ` Doug Anderson
2014-09-05 20:25     ` Doug Anderson
2014-09-07  9:06     ` Javier Martinez Canillas
2014-09-07  9:06       ` Javier Martinez Canillas
2014-09-07 15:01       ` Mark Brown
2014-09-07 15:01         ` Mark Brown
2014-09-07 15:51         ` Javier Martinez Canillas
2014-09-07 15:51           ` Javier Martinez Canillas
2014-09-07 15:52       ` Tomasz Figa
2014-09-07 15:52         ` Tomasz Figa
2014-09-07 16:12         ` Javier Martinez Canillas
2014-09-07 16:12           ` Javier Martinez Canillas
2014-09-07 16:19           ` Tomasz Figa
2014-09-07 16:19             ` Tomasz Figa
2014-09-07 16:40             ` Javier Martinez Canillas
2014-09-07 16:40               ` Javier Martinez Canillas
2014-09-08 11:21             ` Will Deacon
2014-09-08 11:21               ` Will Deacon
2014-09-08 11:55               ` Javier Martinez Canillas
2014-09-08 11:55                 ` Javier Martinez Canillas
2014-09-08 12:46                 ` Will Deacon
2014-09-08 12:46                   ` Will Deacon
2014-09-08 12:20               ` Grant Likely
2014-09-08 12:20                 ` Grant Likely
2014-09-08 13:49                 ` Mark Brown
2014-09-08 13:49                   ` Mark Brown
2014-09-08 14:05                   ` Javier Martinez Canillas
2014-09-08 14:05                     ` Javier Martinez Canillas
2014-09-10 11:17                     ` Will Deacon
2014-09-10 11:17                       ` Will Deacon
2014-09-10 16:03                       ` Doug Anderson
2014-09-10 16:03                         ` Doug Anderson
2014-09-10 16:23                         ` Will Deacon
2014-09-10 16:23                           ` Will Deacon
2014-09-08 15:58                 ` Doug Anderson
2014-09-08 15:58                   ` Doug Anderson
2014-09-08 19:40                   ` Grant Likely
2014-09-08 19:40                     ` Grant Likely
2014-09-10 13:06                     ` Olof Johansson
2014-09-10 13:06                       ` Olof Johansson
2014-09-10 14:31                       ` Mark Brown
2014-09-10 14:31                         ` Mark Brown
2014-09-10 14:56                         ` Grant Likely
2014-09-10 14:56                           ` Grant Likely
2014-09-10 15:39                           ` Mark Brown
2014-09-10 15:39                             ` Mark Brown
2014-09-10 16:29                             ` Grant Likely
2014-09-10 16:29                               ` Grant Likely
2014-09-10 16:45                               ` Doug Anderson
2014-09-10 16:45                                 ` Doug Anderson
2014-09-10 19:45                                 ` Mark Brown
2014-09-10 19:45                                   ` Mark Brown
2014-09-10 19:51                                   ` Doug Anderson
2014-09-10 19:51                                     ` Doug Anderson
2014-09-10 16:57                               ` Mark Brown
2014-09-10 16:57                                 ` Mark Brown
2014-09-11  9:22                                 ` Grant Likely
2014-09-11  9:22                                   ` Grant Likely
2014-09-11 18:03                                   ` Mark Brown
2014-09-11 18:03                                     ` Mark Brown
2014-09-11 22:54                                     ` Doug Anderson
2014-09-11 22:54                                       ` Doug Anderson
2014-09-29 12:57                           ` Thierry Reding
2014-09-29 12:57                             ` Thierry Reding
2014-09-29 13:12                             ` Grant Likely
2014-09-29 13:12                               ` Grant Likely
2014-09-29 16:37                               ` Mark Brown
2014-09-29 16:37                                 ` Mark Brown
2014-09-30  6:12                               ` Thierry Reding
2014-09-30  6:12                                 ` Thierry Reding
2014-09-29 20:46                             ` Maxime Ripard
2014-09-29 20:46                               ` Maxime Ripard
2014-09-10 16:36                         ` Olof Johansson
2014-09-10 16:36                           ` Olof Johansson
2014-09-10 18:17                           ` Mark Brown
2014-09-10 18:17                             ` Mark Brown
2014-09-11  9:06                         ` Grant Likely
2014-09-11  9:06                           ` Grant Likely
2014-09-11 16:16                           ` Mark Brown
2014-09-11 16:16                             ` Mark Brown
2014-09-08  4:36         ` Doug Anderson
2014-09-08  4:36           ` Doug Anderson
2014-09-08  6:09           ` Javier Martinez Canillas
2014-09-08  6:09             ` Javier Martinez Canillas
2014-09-08 15:55             ` Doug Anderson
2014-09-08 15:55               ` Doug Anderson
2014-09-08 16:07               ` Will Deacon
2014-09-08 16:07                 ` Will Deacon
2014-09-08 16:12                 ` Doug Anderson
2014-09-08 16:12                   ` Doug Anderson
2014-09-08 10:20           ` Mark Brown
2014-09-08 10:20             ` Mark Brown
2014-09-08  4:43         ` Doug Anderson
2014-09-08  4:43           ` Doug Anderson
2015-01-30  4:56 bruce m beach

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