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From: Florian Weimer <fweimer@redhat.com>
To: Abhidnya Joshi <abhidnyachirmule@gmail.com>
Cc: libc-locales@sourceware.org
Subject: Re: Crash in gconv_db.c
References: <CALmqtCWYWMUm51HhL0VM3YgBJagyC8T3uCGxiUCjXA0KBB-h8w@mail.gmail.com>
Date: Mon, 11 Nov 2019 16:19:00 -0000
In-Reply-To: <CALmqtCWYWMUm51HhL0VM3YgBJagyC8T3uCGxiUCjXA0KBB-h8w@mail.gmail.com>
	(Abhidnya Joshi's message of "Mon, 11 Nov 2019 21:35:22 +0530")
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* Abhidnya Joshi:

> The questions here are:
> 1. why step[0] has counter 1? this means it was 0, got incremented via
> increment_counter and hence getting inside
>
>               DL_CALL_FCT (init_fct, (step));
>
> 2. When step gets initialized, counter is never 0. Under which
> condition this can become 0?
> 3. Please let me know what to debug more to understand this.

First, we should rule out that this isn't the result of unrelated heap
corruption.  Do you have reproducer?  Can you run under valgrind or
built with Address Sanitizer?

Thanks,
Florian