Re: [gentoo-user] Firefox crashes on some www-pages on a newer Gentoo system

[Mick]

On Friday, 27 July 2018 09:16:30 BST gevisz wrote:
> I have two Gentoo systems on the same AMD Athlon 64 X2 computer.
>
> The old one was installed in July 2013 with
> default/linux/amd64/13.0/desktop/gnome (stable)
> profile and was updated till the middle of
> July 2017. Initially it hosted Gnome2
> but later I have switched to XFCE4.
>
> The new one was installed in January-February 2018
> with default/linux/amd64/17.0/desktop (stable)
> profile and was last updated yesterday. From the
> very beginning it hosted no DE, only Awesome WM
> and dbus.
>
> The home directory is the same and still remembers
> Ubuntu 6.04 installation in 2006.
>
> On the old system, I had the problem that chromium
> very often (but not always!) asked me for some
> (keyring?) password when I opened a new www-page.
>
> Recompilation of it with different user flags did not help.

Go to:

chrome://settings/passwords

Then disable "Offer to save passwords".  It should not ask you to save 
passwords thereafter.


> I thought that that was because of the gnome-keyring,
> consolekit or policykit packages but without any proof.

From what I understand Chrome/ium will ask the desktop password manager to 
handle the saving of website passwords.

Policykit/polkit provides a centralised mechanism for non-privileged processes 
to communicate with privileged ones; e.g. when a plain user wants to 
hibernate/shutdown, disable NICs, etc. 

 https://lwn.net/Articles/258592/

Consolekit tracks user sessions and allows switching between users on the same 
PC without logging out.  As far as I know with the switch to systemd and its 
built-in seat/user/session management mechanisms Consolekit is no longer 
maintained.


> So, while installing the new Gentoo system, I decided
> to avoid installing any package that needs gnome-keyring,
> consolekit or policykit packages.

I think you shouldn't have needed to do all this.


> I have also set -pam -consolekit and -policykit in my
> /etc/portage/make.conf

PAM is used to separate applications from the underlying authentication 
mechanisms.  It checks OS user/account/passwd/session authentications when 
required by applications.  This is the backbone of managing Linux 
authentications today, although some applications retain their own application 
level authentication mechanism (e.g. SSH).

I don't think setting USE="-pam" is advisable for most dekstop use cases.


> Chromium indeed never asked me for the mentioned
> above password on the new Gentoo system.
>
> But I get another problem on the new Gentoo system:
> Firefox and Qupzilla both crash on some (login) www-pages.
>
> Namely, Firefox shows the "Gah. Your tab just crashed"
> when I try to log into my Yahoo e-mail account.
>
> This happens only after entering login and password,
> so not good enough to reproduce.
>
> However, it shows the same message just after staying
> about 3-5 seconds on the following internet banking
> login page: https://www.privat24.ua/#login
> No login or password needed. :)
>
> The last error messages sent to terminal by FF while I
> try to open the last www-page are the following:
>
> [Parent 4099] WARNING: pipe error (56): Connection reset by peer:

The server disconnected you.


> file
> /var/tmp/portage/www-client/firefox-52.8.0/work/firefox-52.8.0esr/ipc/chromi
> um/src/chrome/common/ipc_channel_posix.cc, line 322

I'm not sure if your firefox build is the same like shown here, but line 322 
shows a I/O message loop where it checks if a connection is running so that it 
can respond.

The page in question pops up a couple of things, after loading the initial 
page, including geolocation.  It may have something to do with this.


> ###!!! [Parent][MessageChannel] Error:
> (msgtype=0x2C0083,name=PBrowser::Msg_Destroy) Channel error: cannot
> send/recv

It seems the connection has been reset by the server, two processes running on 
your browser using IPC can't go anywhere and are torn down, but I'm no 
developer to know for sure.


> As to the Qupzilla, it crashes on the page https://www.privat24.ua/#login
> completely, with the following messages sent to terminal:
>
> [4376:4387:0727/105105.178569:ERROR:nss_ocsp.cc(591)] No
> URLRequestContext for NSS HTTP handler. host: ocsp.digicert.com
[snip ...]

The browser is trying to check ocsp.digicert.com for the validity of the 
certificate, but there is some error with the URL.  Then (I'm guessing) 
there's some pop up in the browser to inform you of this error, which causes a 
mesa rendering fault with the output shown below:

> r300 FP: Compiler Error:
> /var/tmp/portage/media-libs/mesa-17.3.9/work/mesa-17.3.9/src/gallium/drivers
> /r300/compiler/r300_fragprog_emit.c::translate_rgb_opcode():
> translate_rgb_opcode: Unknown opcode DDY
> Using a dummy shader instead.
> QupZilla: Crashed :( Saving backtrace in
> /home/user/.config/qupzilla/crashlog ...
> Backtrace successfully saved in
> /home/user/.config/qupzilla/crashlog/Crash-2018-07-27T10:51:11.txt
>
> The mentioned above crashlog file contains only the following:
>
> Time: Fri Jul 27 10:51:11 2018
> Qt version: 5.9.6 (compiled with 5.9.4)
> QupZilla version: 2.2.5
> Rendering engine: QtWebEngine
>
> ============== BACKTRACE ==============
> #0: qupzilla(+0x355b) [0x55691e37055b]
> #1: /lib64/libc.so.6(+0x35c60) [0x7f3a568c3c60]
> #2: [0x7f3a3c18d2c9]

I wouldn't know why the rendered content causes a mesa fault with the gallium 
driver, which brings down the browser.  Are you running the browser in a 
container?  Does it have enough memory allocated to it?


> Strange enough, but on the old Gentoo system Firefox does not crash on
> the said www-pages.
>
> I initially thought that all that because
> I have set -consolekit and -policykit use
> flags in my /etc/portage/make.conf on my
> new Gentoo system but unsetting them
> does not lead to any recompilation while running
> # emerge --update --deep --with-bdeps=y --newuse --backtrack=100 --ask world
>
> Any thoughts about this?

-- 
Regards,
Mick