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From: Dinesh Iyer <dsi.maillist@gmail.com>
Date: Wed, 24 May 2017 15:33:33 -0400
Message-ID: <CAHcSuBrRuxN+RPGT9Ow2G-F+yW9EGgz4cc9u-terwj+k_yvPAQ@mail.gmail.com>
To: Bob Friesenhahn <bfriesen@simple.dallas.tx.us>
Cc: TIFF mailing list <tiff@lists.maptools.org>
Subject: Re: [Tiff] Sporadic crash on Windows when appending images to TIFF
	file
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Thanks Bob!

That makes sense ... I will upgrade to the latest version and let you know
if this bug has been fixed as a side effect.

Dinesh

On Wed, May 24, 2017 at 3:19 PM, Bob Friesenhahn <
bfriesen@simple.dallas.tx.us> wrote:

> On Wed, 24 May 2017, Dinesh Iyer wrote:
>
> Hi Bob,
>> Does that mean that this issue has been fixed in 4.0.8? The process of
>> upgrading a library version is non-trivial in our workplace and so if this
>> bug has been indeed fixed, I would be happy to move to the latest version.
>>
>
> I am unable to tell you if the problem is fixed.  What I can tell you is
> that active libtiff developers are not usually using Windows for
> development (although Windows is supported) so it is not getting as much
> developer testing under Windows as it should.  We rely on the larger
> community to help assure that libtiff is working correctly under Windows.
>
> A large number of bugs and security issues have been fixed since 4.0.0.
> The fixes we are aware of are mentioned in the change logs, but some issues
> which were fixed could have unknown side effects.
>
> To look at the change logs, first go to http://www.simplesystems.org/l
> ibtiff/v4.0.8.html, and after reading that page, click on v4.0.7, read
> that page, click on v4.0.6, etc.
>
> Bob
>
>
>
>> Dinesh
>>
>> On Wed, May 24, 2017 at 12:21 PM, Bob Friesenhahn <
>> bfriesen@simple.dallas.tx.us> wrote:
>>
>> On Wed, 24 May 2017, Dinesh Iyer wrote:
>>>
>>> Hi everyone,
>>>
>>>> I am using libTIFF 4.0.0 and I am receiving a sporadic error/crash when
>>>> I
>>>> am trying to write multiple images to a TIFF file only on Windows.
>>>>
>>>>
>>> Your first step should be to update to libtiff 4.0.8, which was released
>>> this past weekend.  It does not make sense to use an old version which
>>> contains many bugs which are already fixed.
>>>
>>> Bob
>>> --
>>> Bob Friesenhahn
>>> bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/u
>>> sers/bfriesen/
>>> GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
>>>
>>>
>>
> --
> Bob Friesenhahn
> bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
> GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
>

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<div dir=3D"ltr">Thanks Bob!<div><br></div><div>That makes sense ... I will=
 upgrade to the latest version and let you know if this bug has been fixed =
as a side effect.</div><div><br></div><div>Dinesh</div></div><div class=3D"=
gmail_extra"><br><div class=3D"gmail_quote">On Wed, May 24, 2017 at 3:19 PM=
, Bob Friesenhahn <span dir=3D"ltr">&lt;<a href=3D"mailto:bfriesen@simple.d=
allas.tx.us" target=3D"_blank">bfriesen@simple.dallas.tx.us</a>&gt;</span> =
wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;bord=
er-left:1px #ccc solid;padding-left:1ex"><span class=3D"">On Wed, 24 May 20=
17, Dinesh Iyer wrote:<br>
<br>
</span><span class=3D""><blockquote class=3D"gmail_quote" style=3D"margin:0=
 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Bob,<br>
Does that mean that this issue has been fixed in 4.0.8? The process of<br>
upgrading a library version is non-trivial in our workplace and so if this<=
br>
bug has been indeed fixed, I would be happy to move to the latest version.<=
br>
</blockquote>
<br></span>
I am unable to tell you if the problem is fixed.=C2=A0 What I can tell you =
is that active libtiff developers are not usually using Windows for develop=
ment (although Windows is supported) so it is not getting as much developer=
 testing under Windows as it should.=C2=A0 We rely on the larger community =
to help assure that libtiff is working correctly under Windows.<br>
<br>
A large number of bugs and security issues have been fixed since 4.0.0.=C2=
=A0 The fixes we are aware of are mentioned in the change logs, but some is=
sues which were fixed could have unknown side effects.<br>
<br>
To look at the change logs, first go to <a href=3D"http://www.simplesystems=
.org/libtiff/v4.0.8.html" rel=3D"noreferrer" target=3D"_blank">http://www.s=
implesystems.org/l<wbr>ibtiff/v4.0.8.html</a>, and after reading that page,=
 click on v4.0.7, read that page, click on v4.0.6, etc.<span class=3D"HOEnZ=
b"><font color=3D"#888888"><br>
<br>
Bob</font></span><div class=3D"HOEnZb"><div class=3D"h5"><br>
<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
<br>
Dinesh<br>
<br>
On Wed, May 24, 2017 at 12:21 PM, Bob Friesenhahn &lt;<br>
<a href=3D"mailto:bfriesen@simple.dallas.tx.us" target=3D"_blank">bfriesen@=
simple.dallas.tx.us</a>&gt; wrote:<br>
<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
On Wed, 24 May 2017, Dinesh Iyer wrote:<br>
<br>
Hi everyone,<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
I am using libTIFF 4.0.0 and I am receiving a sporadic error/crash when I<b=
r>
am trying to write multiple images to a TIFF file only on Windows.<br>
<br>
</blockquote>
<br>
Your first step should be to update to libtiff 4.0.8, which was released<br=
>
this past weekend.=C2=A0 It does not make sense to use an old version which=
<br>
contains many bugs which are already fixed.<br>
<br>
Bob<br>
--<br>
Bob Friesenhahn<br>
<a href=3D"mailto:bfriesen@simple.dallas.tx.us" target=3D"_blank">bfriesen@=
simple.dallas.tx.us</a>, <a href=3D"http://www.simplesystems.org/users/bfri=
esen/" rel=3D"noreferrer" target=3D"_blank">http://www.simplesystems.org/u<=
wbr>sers/bfriesen/</a><br>
GraphicsMagick Maintainer,=C2=A0 =C2=A0 <a href=3D"http://www.GraphicsMagic=
k.org/" rel=3D"noreferrer" target=3D"_blank">http://www.GraphicsMagick.org/=
</a><br>
<br>
</blockquote>
<br>
</blockquote>
<br>
-- <br>
Bob Friesenhahn<br>
<a href=3D"mailto:bfriesen@simple.dallas.tx.us" target=3D"_blank">bfriesen@=
simple.dallas.tx.us</a>, <a href=3D"http://www.simplesystems.org/users/bfri=
esen/" rel=3D"noreferrer" target=3D"_blank">http://www.simplesystems.org/u<=
wbr>sers/bfriesen/</a><br>
GraphicsMagick Maintainer,=C2=A0 =C2=A0 <a href=3D"http://www.GraphicsMagic=
k.org/" rel=3D"noreferrer" target=3D"_blank">http://www.GraphicsMagick.org/=
</a><br>
</div></div></blockquote></div><br></div>

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