[asterisk-dev] [Code Review] 3765: astobj2: debug backtrace and assert on invalid refcount

[Matt Jordan]

> On July 13, 2014, 4:22 p.m., rmudgett wrote:
> > ast_assert() already outputs a backtrace using ao2_bt() even if DO_CRACH is not enabled.
> > 
> > We also seem to have two backtrace generation functions:
> > ao2_bt()
> > ast_log_bactrace()

We could consolidate these two functions easily; ast_log_backtrace should just use ast_verbose instead of ast_debug.

ast_verbose has a bit more functionality in the logger that works hard to get its output seen - if there are no verbosers registered, it will output to stdout.

I don't think printing out a backtrace should live in ao2.


- Matt


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On July 13, 2014, 3:05 p.m., Scott Griepentrog wrote:
> 
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> 
> (Updated July 13, 2014, 3:05 p.m.)
> 
> 
> Review request for Asterisk Developers.
> 
> 
> Repository: Asterisk
> 
> 
> Description
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> 
> On an invalid refcount, rather than just log the message and continue executing normally, provide a backtrace and an assert to stop on DO_CRASH.  This can help to catch the first case of an invalid refcount rather than being distracted from the problem with a flurry additional logs from other threads encountering already mangled data.
> 
> 
> Diffs
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> 
>   /trunk/main/astobj2.c 418447 
> 
> Diff: https://reviewboard.asterisk.org/r/3765/diff/
> 
> 
> Testing
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> 
> 
> Thanks,
> 
> Scott Griepentrog
> 
>

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