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我目前正在爲安裝了SenseHat的RPi3構建Yocto圖像。RPi3與SenseHat和Yocto
的Yocto圖像由以下層組成：
- 元
- 元狹小
- 元OE
- 元網絡
- 元蟒
- 元樹莓派
- meta-java
- 一個特定於應用程序的層。
的應用程序特定層的主要任務是加載下列內核模塊：
- I2C-dev的
- fb_sys_fops
- syscopyarea
- sysfillrect
- sysimgblt
- rpisense_core
- 個rpisense_js
- rpisense_fb
它還包含OpenSSH的，psplash，GCC，製作，libiio，rtimulib和其他一些雜項。包。
我的形象很好的靴子沒有SenseHat安裝，但是當它被安裝在到達UART前殼的啓動進程停止。它一直保持凍結狀態，直到系統被看門狗復位。
以下是系統凍結前UART輸出的最後部分。
{...}
Populating dev cache
ALSA: Restoring mixer settings...
/usr/sbin/alsactl: load_state:1735: No soundcards found...
Tue Nov 1 10:01:54 UTC 2016
INIT: Entering runlevel: 5
Configuring network interfaces... [ 5.130327] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
udhcpc (v1.24.1) started
Sending discover...
[ 6.662428] smsc95xx 1-1.1:1.0 eth0: link up, 100Mbps, full-duplex, lpa 0x4DE1
[ 6.688217] cfg80211: Calling CRDA to update world regulatory domain
Sending discover...
Sending select for 192.168.0.106...
Lease of 192.168.0.106 obtained, lease time 3600
/etc/udhcpc.d/50default: Adding DNS 192.168.0.20
/etc/udhcpc.d/50default: Adding DNS 192.168.0.40
done.
Starting system message bus: dbus.
Starting OpenBSD Secure Shell server: sshd
[ 9.034713] NET: Registered protocol family 10
done.
Starting rpcbind daemon...done.
Starting advanced power management daemon: No APM support in kernel
(failed.)
Starting bluetooth
bluetoothd
Starting syslogd/klogd: done
* Starting Avahi mDNS/DNS-SD Daemon: avahi-daemon
[ 9.401783] Bluetooth: Core ver 2.20
[ 9.405528] NET: Registered protocol family 31
[ 9.410088] Bluetooth: HCI device and connection manager initialized
[ 9.416576] Bluetooth: HCI socket layer initialized
[ 9.421576] Bluetooth: L2CAP socket layer initialized
[ 9.426747] Bluetooth: SCO socket layer initialized
...done.
Starting Telephony daemon
[ 9.507315] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 9.512765] Bluetooth: BNEP filters: protocol multicast
[ 9.518098] Bluetooth: BNEP socket layer initialized
Starting Linux NFC daemon
[ 9.624816] nfc: nfc_init: NFC Core ver 0.1
[ 9.629241] NET: Registered protocol family 39
我shoould注意，我焊三根線到UART引腳：
當系統被凍結，我仍然可以ping通的設備，但SSH不起作用。
任何想法可能會導致此行爲？