Sorry I didn't tell the whole story...

close chromium
$ sudo apt-get purge chromium
rename ~/.config/chromium (which remained after purge, not sure if it should?)
reboot
$ sudo apt-get install chromium
copy old Bookmarks to new ~/.config/chromium/Default/

Before this, I tried upgrading a VM with 16.04.1 to the latest version
of chromium, which worked perfectly, and still worked after dist-upgrade
to 16.04.2 - but the VM (and certainly its version of chromium) was
pretty much otherwise unused, so I wondered aloud about potential
causes.

I don't see why a reboot should make a difference but I hope that works
for you - mine is now working normally again.  I should have explained
more fully before.

Gareth


On Wed, 5 Jul 2017, at 14:05, Giuseppe_M wrote:
> @Gareth Evans
> 
> Your suggestion, and without copying back the old Bookmarks, works only
> the first time, when you close and reopen the browser it crashes again,
> with:
> 
> Received signal 11 SEGV_MAPERR 000000000008
> #0 0x0000b762af0a base::debug::StackTrace::StackTrace()
> #1 0x0000b762a83a base::debug::StackTrace::StackTrace()
> #2 0x0000b762b388 <unknown>
> #3 0x0000b77bec20 ([vdso]+0xc1f)
> #4 0x00008055948a <unknown>
> #5 0x00008055c01b <unknown>
> #6 0x00008055c7d4 <unknown>
> #7 0x00008055cb1b <unknown>
> #8 0x000080555586 <unknown>
> #9 0x0000b76afe2e <unknown>
> #10 0x0000b76afdb3 <unknown>
> #11 0x0000b762c80b base::debug::TaskAnnotator::RunTask()
> #12 0x0000b7658f3b base::MessageLoop::RunTask()
> #13 0x0000b765a292 base::MessageLoop::DeferOrRunPendingTask()
> #14 0x0000b765b399 base::MessageLoop::DoWork()
> #15 0x0000b765bfbd base::MessagePumpLibevent::Run()
> #16 0x0000b7658304 base::MessageLoop::RunHandler()
> #17 0x0000b76855dd base::RunLoop::Run()
> #18 0x0000b76b5c61 base::Thread::ThreadMain()
> #19 0x0000b76afcdf <unknown>
> #20 0x0000b7786295 start_thread
> #21 0x0000afd6705e clone
>   gs: 00000033  fs: 00000000  es: 0000007b  ds: 0000007b
>  edi: 00000000 esi: a824bd60 ebp: 8f1507f8 esp: 8f150780
>  ebx: 835cb528 edx: 8f150714 ecx: a824bcb0 eax: 00000000
>  trp: 0000000e err: 00000004  ip: 8055948a  cs: 00000073
>  efl: 00210282 usp: 8f150780  ss: 0000007b
> [end of stack trace]
> 
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1702407
> 
> Title:
>   Update breaks chromium-browser on Ubuntu Mate 16.04.2
> 
> Status in chromium-browser package in Ubuntu:
>   Confirmed
> 
> Bug description:
>   $ apt-cache policy chromium-browser
>   chromium-browser:
>     Installed: 59.0.3071.109-0ubuntu0.16.04.1289
>     Candidate: 59.0.3071.109-0ubuntu0.16.04.1289
>     Version table:
>    *** 59.0.3071.109-0ubuntu0.16.04.1289 500
>           500 http://archive.ubuntu.com/ubuntu xenial-updates/universe amd64 
> Packages
>           500 http://archive.ubuntu.com/ubuntu xenial-security/universe amd64 
> Packages
>           100 /var/lib/dpkg/status
>        49.0.2623.108-0ubuntu1.1233 500
>           500 http://archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
> 
>   $ chromium-browser
>   Using PPAPI flash.
>    --ppapi-flash-path=/usr/lib/adobe-flashplugin/libpepflashplayer.so 
> --ppapi-flash-version=
>   Received signal 11 SEGV_MAPERR 000000000010
>   #0 0x7f8cc1af5425 base::debug::StackTrace::StackTrace()
>   #1 0x7f8cc1af580b <unknown>
>   #2 0x7f8cc1e20390 <unknown>
>   #3 0x5619ce286dc8 <unknown>
>   #4 0x5619ce289656 <unknown>
>   #5 0x5619ce289df9 <unknown>
>   #6 0x5619ce28a143 <unknown>
>   #7 0x7f8cc1b70821 <unknown>
>   #8 0x7f8cc1af6eea base::debug::TaskAnnotator::RunTask()
>   #9 0x7f8cc1b1fe90 base::MessageLoop::RunTask()
>   #10 0x7f8cc1b2197d base::MessageLoop::DeferOrRunPendingTask()
>   #11 0x7f8cc1b2283d <unknown>
>   #12 0x7f8cc1b23300 base::MessagePumpLibevent::Run()
>   #13 0x7f8cc1b1ef15 base::MessageLoop::RunHandler()
>   #14 0x7f8cc1b49628 base::RunLoop::Run()
>   #15 0x7f8cc1b75e36 base::Thread::ThreadMain()
>   #16 0x7f8cc1b70726 <unknown>
>   #17 0x7f8cc1e166ba start_thread
>   #18 0x7f8cab4c53dd clone
>     r8: 000000000000002e  r9: 00005619cfcdd6ec r10: 0000000000000000 r11: 
> 00007f8cab552f50
>    r12: 00007f8c1b0d1ff0 r13: 0000000000000008 r14: 0000000000000008 r15: 
> 00007f8c1b0d1eb0
>     di: 0000000000000000  si: 00007f8c1b0d1eb0  bp: 00007f8c1b0d1f00  bx: 
> 00007f8c1b0d1eb0
>     dx: 0000000000000061  ax: 0000000000000000  cx: 00007f8bf0047070  sp: 
> 00007f8c1b0d1e60
>     ip: 00005619ce286dc8 efl: 0000000000010206 cgf: 0000000000000033 erf: 
> 0000000000000004
>    trp: 000000000000000e msk: 0000000000000000 cr2: 0000000000000010
>   [end of stack trace]
> 
>   Quits <1s after starting on desktop.  Output from terminal-based launch is 
> above.
>   Worked earlier today before updating.
> 
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1702407/+subscriptions

-- 
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1702407

Title:
  Update breaks chromium-browser on Ubuntu Mate 16.04.2

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1702407/+subscriptions

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