[Troubleshooting] How to get information helpful for debugging problems

[maciek4323]

EDIT: As there are many questions in this matter:

One more thing related to logs (both logcats and dmesg) is that they are volatile, so they are lost after a reboot and there is no point in capturing logs after rebooting the phone. Also it's really important to get the logs as soon as possible after the issue happens, because there are many actions going on in the system constantly and capacities of log buffers are limited, so after some time the important parts might get overwritten.

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Hello. Some of you are testing Nightly CM7 for Spica by tom3q and you have some problems.

If you want to help tom3q to fix it fast (or at all), please, help us by describing your problem and share with us some logs from your phone.

I want to show you how to do this. It's not very complicated and will help tom3q a lot.

Ok, so let's start:

First step: describing problem

Describe your problem, as precisely as you can. If you can, write how to reproduce this problem (list of actions to perform to trigger it).

Second step: share your system logcat and radio logcat

If you have installed Android SDK on your computer, you can do it like this:

a) open Start menu, select Run
b) type "cmd" and press ENTER
c.a) in new window, type "adb logcat -d *:V > Desktoplogcat.txt"
c.b) in the same way, type "adb logcat -b radio -d *:V > Desktoplogcat_radio.txt"
d) go to desktop, find logcat.txt and logcat_radio.txt
e) add these files to attachments of your post

If you don't have Android SDK, you can do it like this:

a) run Terminal Emulator on your phone (if you don't have it, download it for free from Market)
b) type "su" and confirm
c.a) then type "logcat -d *:V > /sdcard/logcat.txt"
c.b) then type "logcat -b radio -d *:V > /sdcard/logcat_radio.txt"
c) copy logcat.txt and logcat_radio.txt files from your SDcard to PC
d) add these files to attachments of your post

Third step: share your dmesg

If you have installed Android SDK on your computer, you can do it like this:

a) open Start menu, select Run
b) type "cmd" and press ENTER
c) in new window, type "adb shell dmesg > Desktopdmesg.txt"
d) go to desktop, find dmesg.txt
e) add this file to attachments of your post

If you don't have Android SDK, you can do it like this:

a) run Terminal Emulator on your phone (if you don't have it, download it for free from Market)
b) type "su", confirm, then type "dmesg > /sdcard/dmesg.txt"
c) copy dmesg.txt file from your SDcard to PC
d) add this file to attachments of your post

For debugging reboots - dump of kernel oops partition (please also include all the standard logs)

If you have installed Android SDK on your computer, you can do it like this:

a) open Start menu, select Run
b) type "cmd" and press ENTER
c) in new window, type:

adb shell
cat /dev/mtd/mtd7 > /sdcard/oops.bin
exit
adb pull /sdcard/oops.bin

d) go to desktop, find oops.bin
e) compress it (for example with zip)
f) add the resulting archive to attachments of your post

If you don't have Android SDK, you can do it like this:

a) run Terminal Emulator on your phone (if you don't have it, download it for free from Market)
b) type "su", confirm, then type "cat /dev/mtd/mtd7 > /sdcard/oops.bin"
c) copy oops.bin file from your SDcard to PC
e) compress it (for example with zip)
f) add the resulting archive to attachments of your post

For debugging battery drains (please also include all the standard logs)

Launch Spare Parts application, go into Battery history and post contents of "Other usage", "CPU usage" and "Partial wake usage" lists. Also post a screenshot of your battery usage graph (preferably after the battery almost completely discharges).

If you have installed Android SDK on your computer, you can do it like this:

a) open Start menu, select Run
b) type "cmd" and press ENTER
c) in new window, type:

adb shell
cat /proc/wakelocks > /sdcard/wakelocks.txt
exit
adb pull /sdcard/wakelocks.txt

d) go to desktop, find wakelocks.txt
e) add this file to attachments of your post

If you don't have Android SDK, you can do it like this:

a) run Terminal Emulator on your phone (if you don't have it, download it for free from Market)
b) type "su", confirm, then type "cat /proc/wakelocks > /sdcard/wakelocks.txt"
c) copy wakelocks.txt file from your SDcard to PC
d) add this file to attachments of your post

Thank you

USB drivers:
http://forum.samdroid.net/f63/discus...tml#post173983
How to install:
http://forum.samdroid.net/f63/discus...tml#post173702

[tomo_git]

Spica can't find SIM card and can't connect with WiFi

Wklejka #595510 | Wklej.org

Wklejka #595514 | Wklej.org

[godot]

hey but there is a bugtracker

Login Required - Samdroid.Net

[andriusst]

Is there an app that would create these logs for us with a single click form a home screen? If not yet maybe it would not be too complicated to create one? Then just include it in the next build and I can pretty much guaranty you will be receiving logcats for every single little glitch. Just a thought.

[KOala888]

Try alogcat or any other from market.

Sent from my GT-I5700 using Tapatalk

[hayes]

Is there an app that would create these logs for us with a single click form a home screen? If not yet maybe it would not be too complicated to create one? Then just include it in the next build and I can pretty much guaranty you will be receiving logcats for every single little glitch. Just a thought.

perhaps you will be interested in this stuff:
Logcat No More Thanks to Log This | xda-developers

[zhmstar0310]

thanks for your sharing , and it sis useful!

[razr1991]

perhaps you will be interested in this stuff:
Logcat No More Thanks to Log This | xda-developers

Wow. This one's even better than Log Collector

[Xi0N]

Maybe this question is stupid but here it goes

When i run the above commands

"logcat -d > sdcard/logcat.txt"
"logcat -b radio -d > sdcard/logcat_radio.txt"
"adb shell dmesg > Desktop\dmesg.txt"

I only get a dump file and i get back to the prompt. What i mean: I was used to play around with the command adb logcat and see lots of lines being otputed to the shell, but now, just what seems to be a dump and that's all.... is this a normal behaviour? Would it help if i upload these logs even if i did not have errors? (Maybe just to check that everything is working as it should?)

Thanks!

EDIT: LogThis seems to be really useful for collecting logs without going through all the procedure of installing android sdk, drivers etc... i think someone should explain how to use it.... in two clicks you can get anyone's logs!!!!! I tried to use it but it complains about some "logtags"... and i don't know how to use this......

[tom3q]

Added dumping of kernel oops partition. Useful for debugging reboots, starting from CM7.1 alpha 6, where it got enabled.