Hi Daniel, On Sat, Jan 18, 2014 at 04:12:24PM +0100, Daniel Mack wrote: > On 01/17/2014 05:27 PM, Ezequiel Garcia wrote: > > On Sun, Dec 22, 2013 at 02:59:45AM -0300, Ezequiel Garcia wrote: [..] > > Did you try this with a different type of peripheral hardware, a USB > audio device for example? > [..] Finally I found some time to setup the board and do some new tests using an UVC webcam (which might behave better given it should transfer smaller buffers). The result is not encouraging! Device is detected regularly, but then I get some ugly messages on the first command: # yavta /dev/video0 -l [ 21.279722] BUG: spinlock cpu recursion on CPU#0, kworker/0:2/46 [ 21.286041] lock: 0xdf01e010, .magic: dead4ead, .owner: yavta/78, .owner_cpu: 0 [ 21.293800] CPU: 0 PID: 46 Comm: kworker/0:2 Not tainted 3.13.0-rc8-next-20140120-dirty #69 [ 21.302571] Workqueue: events musb_host_finish_resume [ 21.307899] [<c000faa1>] (unwind_backtrace) from [<c000e8db>] (show_stack+0xb/0xc) [ 21.315844] [<c000e8db>] (show_stack) from [<c003f981>] (do_raw_spin_lock+0xc5/0xe8) [ 21.323969] [<c003f981>] (do_raw_spin_lock) from [<c030c949>] (_raw_spin_lock_irqsave+0xd/0x10) [ 21.333094] [<c030c949>] (_raw_spin_lock_irqsave) from [<c021927b>] (musb_host_finish_resume+0xf/0x60) [ 21.342860] [<c021927b>] (musb_host_finish_resume) from [<c0031709>] (process_one_work+0xad/0x224) [ 21.352258] [<c0031709>] (process_one_work) from [<c0031b19>] (worker_thread+0xc9/0x270) [ 21.360750] [<c0031b19>] (worker_thread) from [<c00355c7>] (kthread+0x7b/0x94) [ 21.368325] [<c00355c7>] (kthread) from [<c000cb7d>] (ret_from_fork+0x11/0x34) [ 27.352780] BUG: spinlock lockup suspected on CPU#0, kworker/0:2/46 [ 27.359350] lock: 0xdf01e010, .magic: dead4ead, .owner: yavta/78, .owner_cpu: 0 [ 27.367104] CPU: 0 PID: 46 Comm: kworker/0:2 Not tainted 3.13.0-rc8-next-20140120-dirty #69 [ 27.375860] Workqueue: events musb_host_finish_resume [ 27.381162] [<c000faa1>] (unwind_backtrace) from [<c000e8db>] (show_stack+0xb/0xc) [ 27.389103] [<c000e8db>] (show_stack) from [<c003f971>] (do_raw_spin_lock+0xb5/0xe8) [ 27.397224] [<c003f971>] (do_raw_spin_lock) from [<c030c949>] (_raw_spin_lock_irqsave+0xd/0x10) [ 27.406348] [<c030c949>] (_raw_spin_lock_irqsave) from [<c021927b>] (musb_host_finish_resume+0xf/0x60) [ 27.416109] [<c021927b>] (musb_host_finish_resume) from [<c0031709>] (process_one_work+0xad/0x224) [ 27.425506] [<c0031709>] (process_one_work) from [<c0031b19>] (worker_thread+0xc9/0x270) [ 27.433991] [<c0031b19>] (worker_thread) from [<c00355c7>] (kthread+0x7b/0x94) [ 27.441566] [<c00355c7>] (kthread) from [<c000cb7d>] (ret_from_fork+0x11/0x34) Any ideas from the maintainers? PS: As expected TI's PSP v3.2 driver works just fine :P -- Ezequiel García, Free Electrons Embedded Linux, Kernel and Android Engineering 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
