Hi Alexander, Thanks for your reply. Le 06/03/2013 14:43, Alexander Shishkin a écrit : > On 6 March 2013 12:33, Maxime Ripard > <maxime.ripard@xxxxxxxxxxxxxxxxxx> wrote: >> Just noticed this in 3.9-rc1 on an iMX28 (ARM) board with a config >> based on mxs_defconfig. I'm using the patchset "Add tested id >> switch and vbus connect detect support for Chipidea" from Peter >> Chen in its 10th version [1], rebased on top of 3.9-rc1, but since >> this doesn't modify the locks present in the udc_irq function, I >> think the problem is elsewhere. > > From a quick look at the current chipidea code, I don't see any place > where we might try to take cdev->lock under ci->lock. I should have a > better look at Peter's patchset to see if it can trigger that. And from a quick git blame on top of Peter patches, it seems like udc_irq has been left untouched by his patches. > Peter, have you seen anything like that with your code? Is this easy > to trigger (I would assume it is)? Quite easy yes, just plug a usb cable in gadget mode. > Can you post the contents of "events" debug file in sysfs? http://code.bulix.org/64liql-83101 -- Maxime Ripard, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
