port-arm/53283: RPI earmv6hf earmv7hf: startx system hangs after 2018-03-30 14:00:00 UTC

[jun%soum.co.jp@localhost]

>Number:         53283
>Category:       port-arm
>Synopsis:       RPI earmv6hf earmv7hf: startx system hangs after 2018-03-30 14:00:00 UTC
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    port-arm-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun May 13 05:20:00 +0000 2018
>Originator:     Jun Ebihara
>Release:        2018-03-30 14:00:00 UTC
>Organization:
SOUM Corporation
>Environment:
NetBSD 8.99.17 (RPI2) #0: Thu May 10 01:32:24 UTC 2018
        mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/evbarm/compile/RPI2

>Description:
On Raspberry PI  NetBSD/earmv6hf earmv7hf 8.99.14 or later.

startx makes system hangs.

kernel source code date
2018-03-30 13:35:00 UTC startx works well
2018-03-30 14:00:00 UTC startx hangs


>How-To-Repeat:
http://ftp.netbsd.org/pub/NetBSD/misc/jun/raspberry-pi/2018-04-14-earmv6hf/2018-04-14-netbsd-raspi-earmv6hf.img.gz

1. make micro SDcard
gunzip < 2018-04-14-netbsd-raspi-earmv6hf.img.gz |dd of=/dev/rsd0d

2. boot Rasbperry PI
put microSDcard,HDMI display, USB keyboard,mouse and powersupply

3. startx 

login root with no passwd.

# startx
.. works well 

4. change kernel

cd /boot
cp kernel7.img.org kernel7.img
cp kernel.img.org kernel.img
reboot

5. start may system hang

login root with no passwd

# startx
 .. hangs. X.log are null file.


>Fix:
use 201803211740Z kernel.

        gunzip < 201803211740Z/earmv6hf/netbsd-RPI.img.gz  > ${MNT}/kernel.img
        gunzip < 201803211740Z/earmv6hf/netbsd-RPI2.img.gz > ${MNT}/kernel7.img