Yes, I did
% apt-get purge chromium-browser chromium-browser-l10n chromium-codecs-ffmpeg-extra
and re-install/re-upgrade to get a clean install.  And many reboots.
Behaviour was consistent.  In fact I re-did the install/upgrade to get the above backtraces,
after I had made sure I could get back to v58 OK using dpkg.

Thanks for filing the issue, rechecked this issue on chrome version 59.0.3071.86 on Ubuntu 14.04 & Ubuntu 16.04

@ atrichoke: Can you please try "sudo apt-get update" . Then try a complete re installation of chrome. Please update us with your observations. Please help us with a crash ID if you able to view from chrome://crashes.

Thanks.!

Hi! - thanks for responding.  OK, I did:

sudo apt-get update            // usual output
sudo apt-get remove chromium-browswer chromium-browser-l10n chromium-codecs-ffmpeg-extra chromium-codecs-ffmpeg
sudo apt-get dist-upgrade      // no changes
sudo apt-get install chromium-browswer chromium-browser-l10n chromium-codecs-ffmpeg-extra chromium-codecs-ffmpeg

which fetched v59 as before.  Which failed as before - does not even start.

I also did the same with

sudo apt-get purge chromium-browswer chromium-browser-l10n chromium-codecs-ffmpeg-extra chromium-codecs-ffmpeg
sudo apt-get clean
sudo apt-get autoclean
sudo apt-get autoremove

before the reinstall.  Same result, it doesn't even start.

If you mean some other way of complete re-installation, please say so - sorry
but apt-get and/or dpkg is the only means I know.

There might be add-ons which I don't know how to reinstall.  Flash, AdBlock and suchlike.
Might they be preventing startup if there's an API inconsistency?  Not my area of expertise
I'm sure you can tell.

Thanks again,

    - Hugo (my real name)

Thank you for providing more feedback. Adding requester "ranjitkan@chromium.org" to the cc list and removing "Needs-Feedback" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Can you please check for all updates on Ubuntu and try updating it. Then reinstall chrome and try again. 

Thanks.!

The ubuntu install was completely uptodate when it failed, and also yesterday when I 
did a clean reinstall of chromium-browser.  It's the xubuntu 16.04 LTE distro:

% cat /proc/version
Linux version 4.4.0-79-generic (buildd@lcy01-35) (gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.4) ) #100-Ubuntu SMP Wed May 17 19:57:27 UTC 2017

% cat /proc/version_signature 
Ubuntu 4.4.0-79.100-generic 4.4.67

% uname -a
Linux nc6320-lap1 4.4.0-79-generic #100-Ubuntu SMP Wed May 17 19:57:27 UTC 2017 i686 i686 i686 GNU/Linux

% lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 16.04.2 LTS
Release:	16.04
Codename:	xenial

Cheers,

           - Hugo

Thank you for providing more feedback. Adding requester "ranjitkan@chromium.org" to the cc list and removing "Needs-Feedback" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Can you please update us on the behavior for the latest stable (59.0.3071.109) available.

Hi, Well, this is embarrassing...

I was unable to test the latest stable (59.0.3071.109) because it seems not to have
been built yet for 32-bit i386 ubuntu 16.04 - I couldn't even find a .deb to install
it by hand.  APT only has 59.0.3071.86 available, the one that failed on Jun 8th.
But as apt-get installed it anyway...

From [tools]->About Chromium
"Version 59.0.3071.86 (Developer Build) Built on Ubuntu , running on Ubuntu 16.04 (32-bit)"
now works fine on my xubuntu installs - there have of course been other updates to the
xubuntu environment since I reported the problem, too many to track.  So I guess one of those
fixed it.  How unfortunate, but OTOH good that it's all well now.

So it looks like it's fine with version 81 of the 4.4.0 kernel?

% cat /proc/version
Linux version 4.4.0-81-generic (buildd@lcy01-26) (gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.4) ) #104-Ubuntu SMP Wed Jun 14 08:15:00 UTC 2017
% cat /proc/version_signature 
Ubuntu 4.4.0-81.104-generic 4.4.67
% uname -a
Linux nc6320-lap1 4.4.0-81-generic #104-Ubuntu SMP Wed Jun 14 08:15:00 UTC 2017 i686 i686 i686 GNU/Linux

Sorry to have bothered you - at least it looks like this won't recur with an uptodate system
now.  You can mark this as fixed by other updates, thanks.

Thanks again for looking into this, Best Regards,

         - Hugo

Thank you for providing more feedback. Adding requester "ranjitkan@chromium.org" to the cc list and removing "Needs-Feedback" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Thanks a lot for the update provide, closing the issue. Please feel free to raise a new issue or reopen if observed again.

Just for complete closure, the new version of chromium

       59.0.3071.109-0ubuntu0.16.04.1289

turned up in the xubuntu channels the following day (today) and 
it works fine.  So all good.

I'd like to add that the new chromium 59.xxx... seems faster and more responsive than 58.xxx... - so thanks for that, love continuous improvement.

Thanks again,

    - HUgo