Re: kern/50491: unkillable wait in usbd_transfer while using usmsc0 on raspberry pi 2

[Nick Hudson <skrll%netbsd.org@localhost>]

On 12/01/15 06:50, mfpnb%plass-family.net@localhost wrote:
> > Number:         50491
> > Category:       kern
> > Synopsis:       unkillable wait in usbd_transfer while using usmsc0 on raspberry pi 2


> usbd_do_request: not in process context
> usmsc0: warning: Failed to write register 0x10c
> usbd_do_request: not in process context
> usmsc0: warning: Failed to write register 0x110
> usbd_do_request: not in process context
> usmsc0: warning: Failed to write register 0x100


Please run with this patch to help determine why this is happening.

It will drop to debugger where you can get a backtrace.

Thanks,
Nick

Index: sys/dev/usb/usbdi.c
===================================================================
RCS file: /cvsroot/src/sys/dev/usb/usbdi.c,v
retrieving revision 1.161.2.1
diff -u -p -r1.161.2.1 usbdi.c
--- sys/dev/usb/usbdi.c	11 Feb 2015 09:32:19 -0000	1.161.2.1
+++ sys/dev/usb/usbdi.c	1 Dec 2015 14:33:00 -0000
@@ -992,6 +992,8 @@ usbd_do_request_flags_pipe(usbd_device_h
 	usbd_xfer_handle xfer;
 	usbd_status err;
 
+	ASSERT_SLEEPABLE();
+
 #ifdef DIAGNOSTIC
 	if (cpu_intr_p() || cpu_softintr_p()) {
 		printf("usbd_do_request: not in process context\n");