From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <libc-locales-return-6942-listarch-libc-locales=sources.redhat.com@sourceware.org>
Received: (qmail 19909 invoked by alias); 20 Dec 2019 16:47:39 -0000
Mailing-List: contact libc-locales-help@sourceware.org; run by ezmlm
Precedence: bulk
List-Id: <libc-locales.sourceware.org>
List-Subscribe: <mailto:libc-locales-subscribe@sourceware.org>
List-Post: <mailto:libc-locales@sourceware.org>
List-Help: <mailto:libc-locales-help@sourceware.org>, <http://sourceware.org/lists.html#faqs>
Sender: libc-locales-owner@sourceware.org
Received: (qmail 19805 invoked by uid 89); 20 Dec 2019 16:47:38 -0000
Authentication-Results: sourceware.org; auth=none
X-Spam-SWARE-Status: No, score=-6.1 required=5.0 tests=AWL,BAYES_00,SPF_PASS autolearn=ham version=3.3.1 spammy=
X-HELO: us-smtp-1.mimecast.com
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;
	s=mimecast20190719; t=1576860455;
	h=from:from:reply-to:subject:subject:date:date:message-id:message-id:
	 to:to:cc:cc:mime-version:mime-version:content-type:content-type:
	 content-transfer-encoding:content-transfer-encoding:
	 in-reply-to:in-reply-to:references:references;
	bh=uKFo+uMPwLzPW+YApWWbYXJdCrsCDA+o4VhgvqONoDc=;
	b=OgYnoN5qaSdoNyEnIR5O+HXjxzX47r8BPU2KRQ2D0pSJxQWODqRFjWMSgRW9UcAph1hgq0
	aI8leztRoW3YYXIcp3TUDioIM9QxpPeBarfg+Vz9uC2crsuuLOkJ2ZT7KRBva8poNlGm21
	04O/R7b496ofQMhq7Gld9tPu3r2MJ2k=
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>
	<87bltiv10t.fsf@oldenburg2.str.redhat.com>
	<CALmqtCWfnPZ=B2=_VM=uqAgMWqh3FbGjxXLcbg466Tgct+dUVw@mail.gmail.com>
	<CALmqtCVBCb2vJ+XNb6WZa1csNZaisLmqoG5nTn-QUU0MO=UbPw@mail.gmail.com>
	<877e42cqfo.fsf@oldenburg2.str.redhat.com>
	<CALmqtCVKqf53j7=SbUA-k8jHu4AydsoFfN6SZVX8Hv=iYVBLuQ@mail.gmail.com>
	<CALmqtCU6KB6qu1c7R4ngZh=0v+jvqOVjUT431zJoVsKhiNQdbw@mail.gmail.com>
	<875ziledsy.fsf@oldenburg2.str.redhat.com>
	<CALmqtCXvsdTWQindGNsgVVtMdsWW0dNW+FAttrogeH4uenk_iw@mail.gmail.com>
	<87mubngh8e.fsf@oldenburg2.str.redhat.com>
	<CALmqtCX5=NBAb_qabTmz-nGYJW8qb8iYG_Obbt9JvN8N6gdm5g@mail.gmail.com>
	<8736dfgfyo.fsf@oldenburg2.str.redhat.com>
	<CALmqtCXKHrTsAChozkHaDbLohswOpkU9qeTmy=v7nkzKXuR=Kg@mail.gmail.com>
	<87r20zf07d.fsf@oldenburg2.str.redhat.com>
	<CALmqtCXEdgkyXy7pQgJhpiHy3dVu45YBHx-Z=-2aSnOHbLbomg@mail.gmail.com>
Date: Fri, 20 Dec 2019 16:47:00 -0000
In-Reply-To: <CALmqtCXEdgkyXy7pQgJhpiHy3dVu45YBHx-Z=-2aSnOHbLbomg@mail.gmail.com>
	(Abhidnya Joshi's message of "Fri, 20 Dec 2019 22:12:30 +0530")
Message-ID: <87lfr7eyg0.fsf@oldenburg2.str.redhat.com>
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux)
MIME-Version: 1.0
X-Mimecast-Spam-Score: 0
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
X-SW-Source: 2019-q4/txt/msg00101.txt.bz2

* Abhidnya Joshi:

> step[0] is a problem. When we tried to reproduce this, during runs, we
> did check counter of step[0] in between. It actually got increased to
> 2^32 and then got set back to 0.
> This is only with first entry of step which is for some INTERNAL thing.

I may have found something.

Would you please check if on the affected system, ther is a
gconv-modules.cache file somewhere under /usr?  Fedora uses
/usr/lib64/gconv/gconv-modules.cache, for example.  Or do you set the
GCONV_PATH environment variable on the affected system?

In my initial tests, the counter was stuck at 1 due to the gconv cache,
but that requires the gconv-modules.cache file being present at the
expected path, and GCONV_PATH must not be set.  In this case, you should
be able to work around this issue by running iconvconfig (or not setting
GCONV_PATH).

I cannot yet reproduce the crash, but I definitely see the counter
wrap-around.

Thanks,
Florian