Hi,

Roger Quadros <rogerq@ti.com> writes:
> I'm on v5.4-rc5 on TI's dra7 platform
>
> root@dra7xx-evm:~# modprobe g_audio
> [   79.951077] g_audio gadget: Linux USB Audio Gadget, version: Feb 2, 2012
> [   79.957849] g_audio gadget: g_audio ready
>
> Now I plug the EVM's USB to PC host.
>
> root@dra7xx-evm:~# [   85.359410] g_audio gadget: high-speed config #1: Linux USB Audio Gadget
> [   85.450574] 8<--- cut here ---
> [   85.453645] Unable to handle kernel paging request at virtual address ecb769dc
> [   85.460900] pgd = 08bb55ef
> [   85.463618] [ecb769dc] *pgd=aca1141e(bad)
> [   85.467651] Internal error: Oops: 8000000d [#1] SMP ARM
> [   85.472897] Modules linked in: usb_f_uac2 u_audio g_audio libcomposite xhci_plat_hcd xhci_hcd usbcore dwc3 evdev udc_core usb_common spi_nor snd_soc_simple_card snd_soc_simple_card_utils leds_gpio led_class 4
> [   85.523128] CPU: 0 PID: 1240 Comm: irq/170-dwc3 Not tainted 5.4.0-rc5 #50
> [   85.529945] Hardware name: Generic DRA74X (Flattened Device Tree)
> [   85.536066] PC is at 0xecb769dc
> [   85.539240] LR is at dwc3_gadget_giveback+0x44/0x50 [dwc3]

what's in dwc3_gadget_giveback + 0x44? GDB can tell you that.

> dwc3 trace dump is below
>

[...]

> irq/170-dwc3-1240  [000] d...    85.450567: dwc3_gadget_giveback: : req d4301893 length 0/0 zsI ==> 0

What the hell??? Where's the endpoint name?

-- 
balbi