Magnus,
Thanks very much for looking at this issue as it affected an unpredictable
number of applications after a seemingly innocent
addition of libnettle6.
I don't recall any other packages being removed or upgraded when I removed
libnettl4 (as I had just done an
apt-get upgrade so there were no newer candidates). apt-cache rdepends
libnettle4 shows no packages.
This is a brief snapshot of package changes when I removed libnettle4:
2015-06-16 21:58:18 status installed libarchive12:i386 3.0.4-3+nmu1
2015-06-16 21:58:19 remove libgnutls28:i386 3.2.15-1 <none>
2015-06-16 21:58:19 status installed libgnutls28:i386 3.2.15-1
2015-06-16 21:58:20 status installed libc-bin:i386 2.19-18
2015-06-16 21:58:22 upgrade dnsmasq-base:i386 2.72-3 2.72-3.1+b1
2015-06-16 21:58:24 upgrade librtmp1:i386 2.4+20150115.gita107cef-1
2.4+20150115.gita107cef-1+b2
2015-06-16 21:58:26 upgrade rtmpdump:i386 2.4+20150115.gita107cef-1
2.4+20150115.gita107cef-1+b2
2015-06-16 21:58:29 status installed dbus:i386 1.8.18-1
2015-06-16 21:58:29 status installed man-db:i386 2.7.0.2-5
2015-06-16 21:58:30 status installed libhogweed2:i386 2.7.1-5
2015-06-16 21:58:31 remove libhogweed2:i386 2.7.1-5 <none>
<<<<<<<<<<<<<<<<<<<<<<
2015-06-16 21:58:32 status installed libc-bin:i386 2.19-18
2015-06-16 21:58:33 upgrade wget:i386 1.16.3-2 1.16.3-2+b2
2015-06-16 21:58:36 upgrade gstreamer1.0-plugins-bad:i386 1.4.5-2 1.4.5-2+b1
2015-06-16 21:58:39 upgrade libgstreamer-plugins-bad1.0-0:i386 1.4.5-2
1.4.5-2+b1
2015-06-16 21:58:41 upgrade libarchive13:i386 3.1.2-11 3.1.2-11+b1
2015-06-16 21:58:43 status installed man-db:i386 2.7.0.2-5
2015-06-16 21:58:47 status installed install-info:i386 5.2.0.dfsg.1-6
2015-06-16 21:58:48 status installed libnettle4:i386 2.7.1-5
2015-06-16 21:58:49 remove libnettle4:i386 2.7.1-5 <none>
<<<<<<<<<<<<<<<<
2015-06-16 21:58:50 status installed libc-bin:i386 2.19-18
thanks,
Jack Shaio
--------------------------------------------
On Mon, 6/22/15, Magnus Holmgren <holmg...@debian.org> wrote:
Subject: Re: Bug#789119: libnettle6 install leaves libnettle4, causing
segfaults on many applications
To: "js" <jsh...@yahoo.com>, 789...@bugs.debian.org
Date: Monday, June 22, 2015, 1:26 PM
onsdagen den 17 juni 2015 21.07.40
skrev js:
> I did an apt-get upgrade of my system which brought in
libnettle6 but
> did not remove the existing libnettle4. After this
upgrade, many
> applications including curl, opera-developer,
claws-mail and amarok gave
> segfaults in libnettle.so.4.7, when they had been
working very well
> before the upgrade (set portion of /var/log/messages
below).
Installing a new SOversion of a library normally doesn't
cause the old
SOversion to be deinstalled. libnettle4 merely existing on
the system cannot
cause the segfaults; if it is loaded it's because something
is linked with it.
> After removing libnettle4, all these applications work
perfectly again.
Did removing libnettle4 not cause any other package to be
removed or upgraded?
> I saw that other libnettle bugs that reported this
behavior on specific
> applications, like bugs 788349 and 788572, recommend
updating the
> affected packages. But the applications above that
segfaulted in my
> system were all at their latest version for debian
testing, so this is
> not a practical solution.
Note that it's not enough that the applications that crash
are the latest
version; the problem likely is that one of the intermediate
libraries are not
upgraded and still use libnettle4.
> One solution that would have avoided this issue is if
installing libnettle6
> caused an existing version of libnettle4 to be removed,
for example by
> making libnettle6 replace/conflict with libnettle4.
Removing libnettle4
> worked with all the applications that segfaulted in my
system.
As noted, that shouldn't technically be necessary, but we
may have to do it
anyway to help the users. Now libgnutls-deb0-28, which is
the most common
culprit, has been made to conflict with libnettle4 and
libhogweed2.
--
Magnus Holmgren holmg...@debian.org
Debian Developer
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