[Bug 1893484] Re: Google Chrome 85.0.4183.83 crahses with SIGSEGV

2020-09-13 Thread alex-mobigo
Hmm.., i found the source of the crash. Interesting finding.

My linux box was affected by the bug (!xcb_xlib_threads_sequence_lost),
i have fixed that in Libx11 with the proposed fix. Google-chrome,
pcfman, geany, meld and some other application i can't remember was
affected by this bug. i haad bumped the libx11 version to
1.6.4-3ubuntu0.3. It was all fine, some time later Google-chrome
released version 85.0.4183.83, so the crashes started with this version
and Chromium 84.0.4147.105 was not affected. Google-chrome 84.0.4147.105
was not affected also.

Recently i updated the Ubuntu and a new security fix in libx11 was
installed: libx11 (2:1.6.4-3ubuntu0.3) bionic-security; urgency=medium ,
which has overwritten my own 1.6.4-3ubuntu0.3 with the
"!xcb_xlib_threads_sequence_lost" fix.

After this update i started to having the
"!xcb_xlib_threads_sequence_lost" issue again, went back to libx11,
bumped the version and applied the "!xcb_xlib_threads_sequence_lost"
fix. Now Google-chrome and Chromium crash with SIGSEGV when an input is
in the window.

So, 85.0.4183.83 engine has changed the way it handles input (could be
to mitigate the !xcb_xlib_threads_sequence_lost issue ???).

The odd thing is FireFox is not affected.

Can someone point me to what have changed from 84.0.4147.105 to
85.0.4183.83?

My linux box is unstable with !xcb_xlib_threads_sequence_lost issue,
fixing that makes 85.0.4183.83 crash.


** Summary changed:

- Google Chrome 85.0.4183.83 crahses with SIGSEGV
+ Chromium-browser and Google Chrome 85.0.4183.83 crashes with SIGSEGV

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  Chromium-browser and Google Chrome 85.0.4183.83 crashes with SIGSEGV

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[Bug 1893484] Re: Google Chrome 85.0.4183.83 crahses with SIGSEGV

2020-09-13 Thread alex-mobigo
After working for a while with Chrome and Chromium a similar SIGSEGV is 
happening again.
Both Chrome and Chromium are crashing with SIGSEGV. It crashes right after i 
click the mouse or the input is in the Chromium window if i try to use the 
keyboard only instead of the mouse (navigate).

Firefox 80.0.1 is not affected ( i am writing this with Firefox )


 STRACE CHROMIUM ---
recvmsg(31, {msg_namelen=0}, 0) = -1 EAGAIN (Resource temporarily 
unavailable)
recvmsg(32, {msg_namelen=0}, 0) = -1 EAGAIN (Resource temporarily 
unavailable)
recvmsg(32, {msg_namelen=0}, 0) = -1 EAGAIN (Resource temporarily 
unavailable)
recvmsg(32, {msg_namelen=0}, 0) = -1 EAGAIN (Resource temporarily 
unavailable)
poll([{fd=11, events=POLLIN}, {fd=31, events=POLLIN}, {fd=32, events=POLLIN}, 
{fd=109, events=POLLIN}], 4, 0) = 0 (Timeout)
recvmsg(31, {msg_namelen=0}, 0) = -1 EAGAIN (Resource temporarily 
unavailable)
recvmsg(31, {msg_namelen=0}, 0) = -1 EAGAIN (Resource temporarily 
unavailable)
--- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x28c1d1} ---
+++ killed by SIGSEGV (core dumped) +++
Segmentation fault (core dumped)



** Attachment added: "Chromium  SIGSEGV"
   
https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1893484/+attachment/5410357/+files/chromium.png

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  Google Chrome 85.0.4183.83 crahses with SIGSEGV

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[Bug 1893484] Re: Google Chrome 85.0.4183.83 crahses with SIGSEGV

2020-09-11 Thread David Williams
After reading
https://support.google.com/chrome/thread/67845533?hl=en
I tried, on a whim, 
 chromium-browser --disable-gpu
and all works fine. 

I do not know what that means, but thought I'd post it here for 'data'. 
Perhaps it will help someone understand where to look for debugging, or, even, 
where the bug belongs. 

Thanks,

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  Google Chrome 85.0.4183.83 crahses with SIGSEGV

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[Bug 1893484] Re: Google Chrome 85.0.4183.83 crahses with SIGSEGV

2020-09-11 Thread David Williams
C#8

I tried removing ~/.config/chromium but it did not change the empty
window problem.

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  Google Chrome 85.0.4183.83 crahses with SIGSEGV

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[Bug 1893484] Re: Google Chrome 85.0.4183.83 crahses with SIGSEGV

2020-09-11 Thread alex-mobigo
C#4

Maybe sudo rm -rf ~/.config/chromium/ would fix the empty window too

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  Google Chrome 85.0.4183.83 crahses with SIGSEGV

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[Bug 1893484] Re: Google Chrome 85.0.4183.83 crahses with SIGSEGV

2020-09-11 Thread alex-mobigo
Removing everything from:

sudo rm -rf ~/.config/google-chrome/

fixed the issue, but lost history, password, configurations, etc...

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  Google Chrome 85.0.4183.83 crahses with SIGSEGV

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[Bug 1893484] Re: Google Chrome 85.0.4183.83 crahses with SIGSEGV

2020-09-10 Thread alex-mobigo
I have updated Chromium (Ubuntu 18.04.5 LTS).

Version 85.0.4183.83 (Official Build) Built on Ubuntu , running on
Ubuntu 18.04 (64-bit) is not affected by this bug.

In the case of Google-chrome i tried to remove, purge, clean the
directory /opt and the .cache and it did not help.

It worth noting a few things about my linux box:

1. I upgraded from Ubuntu 16.04 to 18.04 (actually is Ubuntu with LXDE)
2. Ubuntu 16.04 worked stably, quickly, occasional freezes on Google-chrome
3. After the update i was affected by the "!xcb_xlib_threads_sequence_lost" 
bug, some info and fix here: https://github.com/avafinger/libx11_1.6.4 

> It "comes up" but no graphics (or text) are displayed. Just a large empty 
> window (still with a > title) is displayed.
Looks similar to the !xcb_xlib_threads_sequence_lost issue but firing the 
browser a second or third time always worked. Meld, Geany, pcmanfm would crash 
later for the same reason, so in the case of the "Empty window" seems more a 
GPU issue with the browser IMO.


 

3. This

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  Google Chrome 85.0.4183.83 crahses with SIGSEGV

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[Bug 1893484] Re: Google Chrome 85.0.4183.83 crahses with SIGSEGV

2020-09-10 Thread alex-mobigo
oops.

3. I had plugins enabled in Google-chrome, not in Chromium!

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  Google Chrome 85.0.4183.83 crahses with SIGSEGV

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[Bug 1893484] Re: Google Chrome 85.0.4183.83 crahses with SIGSEGV

2020-09-10 Thread David Williams
> I would appreciate if you could comment on this bug when 
> you get the update to let me know whether chromium-browser still works.

For me, chromium-browser stopped working when updated to version 85.0.4183.83 
(on Ubuntu 18.04.5). 
It "comes up" but no graphics (or text) are displayed. Just a large empty 
window (still with a title) is displayed. A right-mouse click will bring up an 
empty window that looks to be a context menu but it is completely blank. 

I have tried "purging" chromium-browser and re-installing, but no
change.

It happened a few days ago, approximately Sept. 8, and I just now
started searching for issues, and found this bug open that might be
related.

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  Google Chrome 85.0.4183.83 crahses with SIGSEGV

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[Bug 1893484] Re: Google Chrome 85.0.4183.83 crahses with SIGSEGV

2020-08-31 Thread Olivier Tilloy
Please note that an update of chromium-browser to version 85.0.4183.83
should be available very soon in the Ubuntu repositories. I would
appreciate if you could comment on this bug when you get the update to
let me know whether chromium-browser still works. Thanks in advance!

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  Google Chrome 85.0.4183.83 crahses with SIGSEGV

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[Bug 1893484] Re: Google Chrome 85.0.4183.83 crahses with SIGSEGV

2020-08-31 Thread alex-mobigo
Chromium 84.0.4147.105 Built on Ubuntu , running on Ubuntu 18.04 not
affected!

As for the google-chrome i thought the update to the latest version came from 
Ubuntu, since i always run the update manually and disable any automatic 
update. Ok, wrong assumption.
I will try to report this crash to them or use chromium-browser.

Please, disregard.

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  Google Chrome 85.0.4183.83 crahses with SIGSEGV

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[Bug 1893484] Re: Google Chrome 85.0.4183.83 crahses with SIGSEGV

2020-08-31 Thread Olivier Tilloy
Chrome is distributed by Google, not Ubuntu, so the crash should be
reported upstream, at https://bugs.chromium.org/p/chromium/issues/entry.

Is chromium-browser (the package distributed and maintained by Ubuntu)
similarly affected?

** Changed in: chromium-browser (Ubuntu)
   Status: New => Incomplete

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