From: Felipe Balbi <balbi@kernel.org>
To: Roger Quadros <rogerq@ti.com>,
"linux-usb\@vger.kernel.org" <linux-usb@vger.kernel.org>
Cc: "Bin Liu \[EP\]" <b-liu@ti.com>
Subject: Re: g_audio breaks with dwc3
Date: Tue, 29 Oct 2019 14:25:14 +0200 [thread overview]
Message-ID: <87r22vhh79.fsf@gmail.com> (raw)
In-Reply-To: <c97b96cf-65f6-5143-838f-a3e9d1a5c5b2@ti.com>
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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
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next prev parent reply other threads:[~2019-10-29 12:25 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-29 11:30 g_audio breaks with dwc3 Roger Quadros
2019-10-29 12:25 ` Felipe Balbi [this message]
2019-10-29 12:33 ` Roger Quadros
2019-10-30 8:17 ` Jack Pham
2019-10-30 8:57 ` Felipe Balbi
2019-10-30 10:00 ` Roger Quadros
2019-10-30 11:26 ` Felipe Balbi
2019-10-30 12:39 ` Roger Quadros
2019-10-31 8:56 ` Felipe Balbi
2019-10-30 10:08 ` Roger Quadros
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