On 04/10/2015 03:23 PM, Mark Brown wrote: > 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. FWIW: the mcp2515 driver is accessing the SPI bus during probe(). Seems you have to instrument the SPI stack and/or host driver. Marc -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |
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