lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <56543A13.4040300@nvidia.com>
Date:	Tue, 24 Nov 2015 10:21:07 +0000
From:	Jon Hunter <jonathanh@...dia.com>
To:	Tyler Baker <tyler.baker@...aro.org>
CC:	Peter De Schrijver <pdeschrijver@...dia.com>,
	Prashant Gaikwad <pgaikwad@...dia.com>,
	Michael Turquette <mturquette@...libre.com>,
	"Stephen Boyd" <sboyd@...eaurora.org>,
	Stephen Warren <swarren@...dotorg.org>,
	"Thierry Reding" <thierry.reding@...il.com>,
	Alexandre Courbot <gnurou@...il.com>,
	<linux-clk@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Rhyland Klein <rklein@...dia.com>,
	Kevin's boot bot <khilman@...nel.org>
Subject: Re: [PATCH] clk: tegra: Fix bypassing of PLLs

Hi Tyler,

On 23/11/15 23:18, Tyler Baker wrote:
> Hi Jon,
> 
> On 20 November 2015 at 07:11, Jon Hunter <jonathanh@...dia.com> wrote:
>> The _clk_disable_pll() function will attempt to place a PLL into bypass
>> if the TEGRA_PLL_BYPASS is specified for the PLL and then disable the PLL
>> by clearing the enable bit. To place the PLL into bypass, the bypass bit
>> needs to be set and not cleared. Fix this by setting the bypass bit and
>> not clearing it.
>>
>> Signed-off-by: Jon Hunter <jonathanh@...dia.com>
> 
> The kernelci.org bot recently detected a jetson-tk1 boot failure[1][2]
> in the tegra tree. This boot failure has only been observed when
> booting with a multi_v7_defconfig kernel variant. The bot bisected[3]
> this boot failure to this commit, and I confirmed reverting it on top
> of the tegra for-next branch resolves the issue. The ramdisk[4] used
> for booting is loaded with the modules from the build. It appears to
> me that as the modules are being loaded in userspace by eudev the
> jetson-tk1 locks up. I've sifted through the console logs a bit, and
> found this splat to be most interesting[5].  Can you confirm this
> issue on your end?

Thanks for the report. I have booted the latest next on the jetson-tk1
with the multi_v7_defconfig but I did not see this. However, the test
infrastructure is not loading those modules. I need to look at adding this.

I will see if I can reproduce this today and let you know what I find.

Cheers
Jon
--
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/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ