[lttng-dev] [BUG] lttng-sessiond

Mathieu Desnoyers mathieu.desnoyers at efficios.com
Sat Apr 25 11:37:25 EDT 2015


----- Original Message -----
> > 
> > Why do you need to load those explicitly ? They should be
> > already loaded by default. I don't get those errors here.
> > Which shell are you using (sh symlink) ? Can you reproduce
> > using bash ?
> Ok.  Found the bug.  In append_list_to_probes() index is used to get
> the current index into the probes array.  However in the loop, index
> is never incremented.  Therefore, the first entry of probes is
> overwritten, but nr_probes is incremented, and later those "empty"
> entries are referenced.
> 
> There is also a memory leak in append_list_to_probes():
>  
> tmp_list = strdup(list); // uses malloc()
> next = strtok(tmp_list, ","); // tmp_list needs to be NULL except in the
> first iteration
> tmp_list = NULL; // so set it NULL
> free(tmp_list); // good intention, does not work.

Thanks for spotting those issues! I'm CCing the
author of this code.

Mathieu

> 
> Best regards,
> Hannes
> 

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com



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