序
當一個人生病去看醫生，會說出症狀，醫生或做一些檢測來確認引起不良反應的原因。對於一個Android的裝置也一樣。在開發過程中，工程開發人員常會發現一些問題。這時候需要檢測裝置的發生原因。因此可以透過Android的內部紀錄訊息來檢測發生甚麼問題導致不良因素。
從何處下手?
Android 內有提供一個指令，稱為bugreport。可以透過指令adb bugreport adb shell bugreport來取得Bugreport中的資訊。使用這個指令取得Android 4.1的模擬器內的bugreport可得到以下的六十八種紀錄訊息。這些訊息可以用來診斷Android目前的健康情況。
| UPTIME (uptime) |
| MEMORY INFO (/proc/meminfo) |
| CPU INFO (top -n 1 -d 1 -m 30 -t) |
| PROCRANK (procrank) |
| VIRTUAL MEMORY STATS (/proc/vmstat) |
| VMALLOC INFO (/proc/vmallocinfo) |
| SLAB INFO (/proc/slabinfo) |
| ZONEINFO (/proc/zoneinfo) |
| PAGETYPEINFO (/proc/pagetypeinfo) |
| BUDDYINFO (/proc/buddyinfo) |
| KERNEL WAKELOCKS (/proc/wakelocks) |
| KERNEL CPUFREQ (/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state) |
| PROCESSES (ps -P) |
| PROCESSES AND THREADS (ps -t -p -P) |
| LIBRANK (librank) |
| KERNEL LOG (dmesg) |
| LIST OF OPEN FILES (/system/xbin/su root lsof) |
| SMAPS OF ALL PROCESSES |
| SHOW MAP 1 (/init) (/system/xbin/su root showmap 1) |
| BLOCKED PROCESS WAIT-CHANNELS |
| SYSTEM LOG (logcat -v threadtime -d *:v) |
| EVENT LOG (logcat -b events -v threadtime -d *:v) |
| RADIO LOG (logcat -b radio -v threadtime -d *:v) |
| VM TRACES JUST NOW (/data/anr/traces.txt.bugreport: 2012-10-17 08:21:46) |
| VM TRACES AT LAST ANR (/data/anr/traces.txt: 2012-10-17 08:16:11) |
| NETWORK DEV INFO (/proc/net/dev) |
| QTAGUID NETWORK INTERFACES INFO (/proc/net/xt_qtaguid/iface_stat_all) |
| QTAGUID NETWORK INTERFACES INFO (xt) (/proc/net/xt_qtaguid/iface_stat_fmt) |
| QTAGUID CTRL INFO (/proc/net/xt_qtaguid/ctrl) |
| QTAGUID STATS INFO (/proc/net/xt_qtaguid/stats) |
| NETWORK ROUTES (/proc/net/route) |
| NETWORK ROUTES IPV6 (/proc/net/ipv6_route) |
| LAST KMSG (/proc/last_kmsg) |
| LAST PANIC CONSOLE (/data/dontpanic/apanic_console) |
| LAST PANIC THREADS (/data/dontpanic/apanic_threads) |
| SYSTEM SETTINGS (/system/xbin/su root sqlite3 /data/… |
| NETWORK INTERFACES (/system/xbin/su root netcfg) |
| IP RULES (ip rule show) |
| IP RULES v6 (ip -6 rule show) |
| ROUTE TABLE 60 (ip route show table 60) |
| ROUTE TABLE 61 v6 (ip -6 route show table 60) |
| ROUTE TABLE 61 (ip route show table 61) |
| ROUTE TABLE 61 v6 (ip -6 route show table 61) |
| ARP CACHE (/proc/net/arp) |
| IPTABLES (/system/xbin/su root iptables -L -nvx) |
| IP6TABLES (/system/xbin/su root ip6tables -L -nvx) |
| IPTABLE NAT (/system/xbin/su root iptables -t nat -L -nvx) |
| IPTABLE RAW (/system/xbin/su root iptables -t raw -L -nvx) |
| IP6TABLE RAW (/system/xbin/su root ip6tables -t raw -L -nvx) |
| WIFI NETWORKS (/system/xbin/su root wpa_cli list_networks) |
| SYSTEM PROPERTIES |
| VOLD DUMP (vdc dump) |
| SECURE CONTAINERS (vdc asec list) |
| FILESYSTEMS & FREE SPACE (/system/xbin/su root df) |
| PACKAGE SETTINGS (/system/xbin/su root cat /data/system/packages.xml) |
| PACKAGE UID ERRORS (/data/system/uiderrors.txt: 2012-10-15 02:30:29) |
| LAST RADIO LOG (parse_radio_log /proc/last_radio_log) |
| BACKLIGHTS |
| BINDER FAILED TRANSACTION LOG (/sys/kernel/debug/binder/failed_transaction_log) |
| BINDER TRANSACTION LOG (/sys/kernel/debug/binder/transaction_log) |
| BINDER TRANSACTIONS (/sys/kernel/debug/binder/transactions) |
| BINDER STATS (/sys/kernel/debug/binder/stats) |
| BINDER STATE (/sys/kernel/debug/binder/state) |
| DUMP VENDOR RIL LOGS (/system/xbin/su root vril-dump) |
| DUMPSYS (dumpsys) |
| APP ACTIVITIES (dumpsys activity all) |
| APP SERVICES (dumpsys activity service all) |
| APP SERVICES (dumpsys activity provider all) |
在這些訊息中包含Android與Linux層的各種訊息，並能取得各種不同類別的訊息。例如，活動與事件、記憶體使用情形、系統狀態、射頻狀態，與網路狀態等。
值得探討的是，若產品是一個Android的手機或附有通訊功能的平板電腦。有些訊息包含電信通訊技術相關的底層訊息。這些訊息是通訊晶片與電信基定台的交換訊息。而在Bugreport的功能中可能無法傳遞這些訊息。需要特定的軟體或裝置去取得這些電信交換的訊息。
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