# Backtrace problem **URL:** \ **Category:** Development tools\ **Created:** [January 11, 2010, 11:51am UTC](https://forum.sierrawireless.com/t/backtrace-problem/4090 "2010-01-11T11:51:13Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![critical](https://avatars.discourse-cdn.com/v4/letter/c/e68b1a/32.png) [@critical](https://forum.sierrawireless.com/u/critical)\ **Post date:** [January 11, 2010, 11:51am UTC](https://forum.sierrawireless.com/t/backtrace-problem/4090/1 "2010-01-11T11:51:13Z")
How can one display the contents of a remote backtrace (.bin) file using M2M (or any available tool)? This was achieved in the old OpenAT IDE by using TMT and the Serial Link Manager. Now this is not possible anymore since M2M studio doesn’t generate the workspace (.wks) file needed by TMT to correctly display the backtrace. What is the use of a remote backtrace (“remote” as in “in the field”) if it can’t be displayed properly? Is there a backtrace file format specification available ? Thank you, Alex ---
**Author:** ![daav](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/daav/32/2767_2.png) [@daav](https://forum.sierrawireless.com/u/daav)\ **Post date:** [January 12, 2010, 8:53am UTC](https://forum.sierrawireless.com/t/backtrace-problem/4090/2 "2010-01-12T08:53:10Z")
Actually, even if M2M Studio doesn’t generate a .wks file, it generates the files which are required for backtraces decoding, and which can be provided to TMT (as M2M Studio is not able to decode backtraces yet…): - the backtraces.axf file - the .symbols file (to be provided as the former “s” file in TMT) Just provide these files in the TMT settings (hit F10 key), and then it shall be able to decode backtraces, coming from the target, or read through selima from a .bin file ---
**Author:** ![awneil](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@awneil](https://forum.sierrawireless.com/u/awneil)\ **Post date:** [January 12, 2010, 9:54am UTC](https://forum.sierrawireless.com/t/backtrace-problem/4090/3 "2010-01-12T09:54:36Z")
> [@daav](#): > > M2M Studio is not able to decode backtraces yet… Any news on when it will gain this ability…? ---
**Author:** ![critical](https://avatars.discourse-cdn.com/v4/letter/c/e68b1a/32.png) [@critical](https://forum.sierrawireless.com/u/critical)\ **Post date:** [January 12, 2010, 1:01pm UTC](https://forum.sierrawireless.com/t/backtrace-problem/4090/4 "2010-01-12T13:01:18Z")
The method described by daav seems to work, although when decoding the backtrace I only get the following message: Trace RTK 1 Except RTK …153 14384 11 Nothing else, no stacktrace, nothing. Is this normal ? And what exactly does except RTK 153 mean? I looked everywhere for a description of it but couldn’t find any. I will post a new topic regarding this exception. ---
**Author:** ![critical](https://avatars.discourse-cdn.com/v4/letter/c/e68b1a/32.png) [@critical](https://forum.sierrawireless.com/u/critical)\ **Post date:** [January 12, 2010, 1:11pm UTC](https://forum.sierrawireless.com/t/backtrace-problem/4090/5 "2010-01-12T13:11:02Z")
Ok, my bad. I managed to decode the backtrace: Trace RTK 1 Except RTK …153 14384 11 ADS Bckt -\> Unresolved symbol : 0x00000FDF ADS Bckt -\> Unresolved symbol : 0x000D223B ADS Bckt -\> Unresolved symbol : 0x000D1F85 ADS Bckt -\> Unresolved symbol : 0x000CFC23 ADS Bckt -\> Unresolved symbol : 0x000CFB55 ADS Bckt -\> Unresolved symbol : 0x000CFACF ADS Bckt -\> Unresolved symbol : 0x00000D89 ADS Bckt -\> Unresolved symbol : 0x000CD907 ADS Bckt -\> Unresolved symbol : 0x0005B2C1 ADS Bckt -\> Unresolved symbol : 0x0005B20F ADS Bckt -\> Unresolved symbol : 0x0005EE04 I will post a link to the ‘except rtk 153’ topic ---
**Author:** ![awneil](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@awneil](https://forum.sierrawireless.com/u/awneil)\ **Post date:** [January 12, 2010, 1:13pm UTC](https://forum.sierrawireless.com/t/backtrace-problem/4090/6 "2010-01-12T13:13:15Z")
The lack of documentation of the Exceptions has been long lamented on this forum: [viewtopic.php?f=47&t=2027&p=17972#p17972](http://www.wavecom.com/modules/movie/scenes/forums/viewtopic.php?f=47&t=2027&p=17972#p17972) 😠 ---
**Author:** ![critical](https://avatars.discourse-cdn.com/v4/letter/c/e68b1a/32.png) [@critical](https://forum.sierrawireless.com/u/critical)\ **Post date:** [January 12, 2010, 1:29pm UTC](https://forum.sierrawireless.com/t/backtrace-problem/4090/7 "2010-01-12T13:29:34Z")
Link to the ‘except RTK 153’ topic: [viewtopic.php?f=3&t=4468&start=0](http://www.wavecom.com/modules/movie/scenes/forums/viewtopic.php?f=3&t=4468&start=0) ---
**Author:** ![critical](https://avatars.discourse-cdn.com/v4/letter/c/e68b1a/32.png) [@critical](https://forum.sierrawireless.com/u/critical)\ **Post date:** [January 12, 2010, 1:34pm UTC](https://forum.sierrawireless.com/t/backtrace-problem/4090/8 "2010-01-12T13:34:15Z")
Yes well, I’ll just add one more complaint maybe ‘somebody’ will do something about it. ---
**Author:** ![awneil](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@awneil](https://forum.sierrawireless.com/u/awneil)\ **Post date:** [January 12, 2010, 2:15pm UTC](https://forum.sierrawireless.com/t/backtrace-problem/4090/9 "2010-01-12T14:15:34Z")
> [@critical](#): > > maybe ‘somebody’ will do something about it. We can but hope… 😕 ---
**Author:** ![daav](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/daav/32/2767_2.png) [@daav](https://forum.sierrawireless.com/u/daav)\ **Post date:** [January 13, 2010, 8:13am UTC](https://forum.sierrawireless.com/t/backtrace-problem/4090/10 "2010-01-13T08:13:40Z")
> [@awneil](#): > > Any news on when it will gain this ability…? It is part of 1.2.0 scope, with Target Management enhancement.