Re: [Tracker] ubuntu-gnome/+bug/1653392

[Carlos Garnacho <carlosg gnome org>]

Hi Chris,

On Wed, Feb 22, 2017 at 12:30 AM, Chris <cpollock embarqmail com> wrote:
> I'm sure hoping I'm sending this to the correct list. If not I

It is :)

> sincerely apologize. I've been experiencing this - tracker-store
> crashed with SIGSEGV in g_slice_alloc()  almost daily since 12/31/2016.
> It's listed here - https://bugs.launchpad.net/ubuntu-gnome/+bug/1653392
>  still shown as new and assigned to nobody. Here is some version
> information:

Strange, that link doesn't work here, just says "page not found".
Anyway, SIGSEGV when allocating memory is a pretty good indicator of
memory corruption. Valgrind could be of help there, you can run
tracker-store through valgrind with:

killall -15 tracker-store; valgrind --leak-check=full --num-callers=25
--log-file=~/not-indexed-folder/tracker-store-valgrind.txt
/usr/lib/tracker/tracker-store

This will make tracker-store real slow (and all re-indexing process in
chain effect), but it should catch and log invalid frees/writes into
that log file.

Oh, also make sure you have debug packages for tracker, I forgot what
the ubuntu way is for that.

> Distributor ID: Ubuntu
> Description:    Ubuntu 16.04.2 LTS
> Release:        16.04
> Codename:       xenial
>
> chris@localhost:~$ apt-cache policy tracker
> tracker:
>   Installed: 1.8.3-0ubuntu0~xenial1
>   Candidate: 1.8.3-0ubuntu0~xenial1
>   Version table:
>  *** 1.8.3-0ubuntu0~xenial1 500
>         500 http://ppa.launchpad.net/gnome3-team/gnome3-staging/ubuntu
> xenial/main amd64 Packages

Hmm, however, 1.8.x is slightly old now, you should perhaps try first
with the 1.10.x stable branch which has been out for a few months now.
Although I tbh don't remember recent tracker-store memory corruption
bugs, nor having seen anything like that fixed recently.

If after updating the bug still persists, please file a bug at
https://bugzilla.gnome.org/enter_bug.cgi?product=tracker with the
valgrind info and we'll take it from there.

Cheers,
  Carlos