From: Mark Brown <broonie@kernel.org>
To: Marcel Ziswiler <marcel@ziswiler.com>
Cc: linux-can@vger.kernel.org, linux-spi@vger.kernel.org,
linux@arm.linux.org.uk, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org,
Laxman Dewangan <ldewangan@nvidia.com>,
Oliver Hartkopp <socketcan@hartkopp.net>,
Marc Kleine-Budde <mkl@pengutronix.de>,
Wolfgang Grandegger <wg@grandegger.com>,
Thierry Reding <thierry.reding@gmail.com>,
Stephen Warren <swarren@wwwdotorg.org>,
Alexandre Courbot <gnurou@gmail.com>,
Stefan Agner <stefan@agner.ch>,
Himangi Saraogi <himangi774@gmail.com>,
Julia Lawall <julia.lawall@lip6.fr>,
Stefano Babic <sbabic@denx.de>,
Christian Pellegrin <chripell@fsfe.org>,
"DavidS.Miller" <davem@davemloft.net>,
Marc Zyngier <maz@misterjones.org>,
Sascha Hauer <s.hauer@pengutronix.de>
Subject: Re: [REGRESSION] commit 0461a41 "spi: Pump transfers inside calling context for spi_sync()" breaks Apalis/Colibri T30 with MCP2515 SPI CAN controller
Date: Fri, 10 Apr 2015 14:23:30 +0100 [thread overview]
Message-ID: <20150410132330.GH6023@sirena.org.uk> (raw)
In-Reply-To: <1428670853.7008.87.camel@localhost.localdomain>
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On Fri, Apr 10, 2015 at 03:00:53PM +0200, Marcel Ziswiler wrote:
> Hi there
Please try to use somewhat more targetted CC lists...
> I also have not yet looked further into what exactly is happening and
> whether or not the SPI stack, the Tegra SPI controller driver or the
> MCP2515 SPI CAN driver is to blame but rather decided to ask Mr. Brown
> and the community first for any insights they might have to share.
> Anybody?
I'd ask for trace logs but obviously we can't turn them on until boot
has finished... Adding some trace in the relevant bits of code to try
to see where it's deadlocking is the obvious first step.
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next prev parent reply other threads:[~2015-04-10 13:24 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-10 13:00 [REGRESSION] commit 0461a41 "spi: Pump transfers inside calling context for spi_sync()" breaks Apalis/Colibri T30 with MCP2515 SPI CAN controller Marcel Ziswiler
2015-04-10 13:23 ` Mark Brown [this message]
2015-04-10 15:15 ` Marc Kleine-Budde
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