Messages in this thread | | | Date | Mon, 8 Aug 2011 19:00:46 +0200 | From | Jean-Christophe PLAGNIOL-VILLARD <> | Subject | Re: AT91SAM9261EK kit is broken, commit bd60299 has broken it |
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Hi.
I'm taking a look on it
Best Regads, J. On 23:27 Sat 06 Aug , Remy Bohmer wrote: > Hi Jean-Christophe, > > Currently the Atmel AT91SAM9261-EK kit is broken within Linux 3.0, > 3.01 and latest git. > > These are the symptoms: > * Booting stops if LCD driver is enabled in the kernel. It stops > within the probe of the LCD driver. (at a msleep(10)) > * schedule_timeout is broken. > * The jiffies based sched_clock does not run properly and stalls > during boot, before the LCD driver is being initialised. (You can see > this with printk-timestamps enabled) > * When LCD driver disabled, boards boots up to a prompt, but every > tool (e.g. 'top') that does a nanosleep syscall stays blocked in the > kernel. > > After bisecting the tree searching for the offending commit, I came to > the following patch, after reverting it in mainline, everything works > again as normal. I do not see immediately what is wrong with this > commit, do you have an idea? Otherwise I will dig deeper in this > commit... > > bd60299594fb1d28ae66563c9e76a0b89b0412cf is the first bad commit > commit bd60299594fb1d28ae66563c9e76a0b89b0412cf > Author: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> > Date: Wed Feb 2 07:27:07 2011 +0100 > > at91: switch to CLKDEV_LOOKUP > > we do not change the clock naming convention so does not need to switch > the AVR32 yet > > Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> > Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> > Cc: Patrice Vilchez <patrice.vilchez@atmel.com> > > Kind regards, > > Remy
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