Re: port-evbarm/53503: dwctwo(4) panic triggered by usmsc(4) only in aarch64 mode

[Rin Okuyama <rokuyama%rk.phys.keio.ac.jp@localhost>]

The following reply was made to PR port-evbarm/53503; it has been noted by GNATS.

From: Rin Okuyama <rokuyama%rk.phys.keio.ac.jp@localhost>
To: Nick Hudson <nick.hudson%gmx.co.uk@localhost>, gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: port-evbarm/53503: dwctwo(4) panic triggered by usmsc(4) only in
 aarch64 mode
Date: Thu, 9 Aug 2018 02:26:14 +0900

 On 2018/08/08 19:32, Nick Hudson wrote:
 > Can you provide DWC2_DEBUG for the problem please?
 
 Here's dmesg from kernel with DWC2_DEBUG and USB_DEBUG enabled:
 
 http://www.netbsd.org/~rin/dmesg-aarch64-20180809
 
 The procedure is as follows:
 
 (1) Boot RPI3B into single user mode.
 (2) sysctl -w ddb.onpanic=0
 (3) Entering ddb from USB keyboard, then
      > w/l smsc_debug 1
      > w/l dwc2debug 10
      > c
 (4) ifconfig usmsc0 up
 
 Thus, first few debug output is due to input from USB keyboard.
 I need (2) because recursive panic occurs on entering ddb...
 
 Thanks,
 rin