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  • Lockups

    From tg30@21:1/5 to All on Tue Jul 22 17:00:02 2025
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  • From Alain D D Williams@21:1/5 to All on Tue Jul 22 17:10:01 2025
    On Tue, Jul 22, 2025 at 02:49:29PM +0000, tg30 wrote:
    I am new to this list
    I am experiencing system lockups when using firefox and chromium browsers. When the system freezes I can only recover by rebooting and reloading the browsers

    How can I fix this problem?

    Is there any way to escape the lockup other than rebooting?

    Try pressing: Ctrl-Alt-F1 -- that should show you a login prompt. Login and run some diagnostics.

    You can even press Ctrl-Alt-F1 before you run firefox, start some diagnostics then return to graphical mode with Ctrl-Alt-F7. Then when the system locks up press Ctrl-Alt-F1 to see the diagnostics running.

    This will not work if the system is truely borked, but often it is not but you cannot get to run a new command.

    Another way of doing this is to ssh into the machine from elsewhere and run diagnostics from there.

    What diagnostics ... I would start with the top (or atop) programs.

    Tom George

    --
    Alain Williams
    Linux/GNU Consultant - Mail systems, Web sites, Networking, Programmer, IT Lecturer.
    +44 (0) 787 668 0256 https://www.phcomp.co.uk/
    Parliament Hill Computers. Registration Information: https://www.phcomp.co.uk/Contact.html
    #include <std_disclaimer.h>

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  • From Hans@21:1/5 to All on Tue Jul 22 17:10:01 2025
    Am Dienstag, 22. Juli 2025, 16:49:29 CEST schrieb tg30:
    I am new to this list
    I am experiencing system lockups when using firefox and chromium browsers. When the system freezes I can only recover by rebooting and reloading the browsers

    How can I fix this problem?

    Is there any way to escape the lockup other than rebooting?

    Tom George

    Maybd you can just restart X by pressing "CTRL + ALT + BACKSPACE". This is a hardkill of X. However, it must be activated in the windowmanager, as this combination is disabled by default.

    More important is, to find out, why the browsers let the windowmanager freeze.

    Hint: Starting the browser from console like konsole or xterm might give some clue.

    Best

    Hans

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  • From Marco Moock@21:1/5 to All on Tue Jul 22 17:30:02 2025
    On 22.07.2025 17:00 Uhr tg30 wrote:

    I am experiencing system lockups when using firefox and chromium
    browsers. When the system freezes I can only recover by rebooting and reloading the browsers

    How can I fix this problem?

    Is there any way to escape the lockup other than rebooting?

    Install an ssh server and log in from a remote machine and try if login
    from the outside is possible. Then check htop for system load.

    Also check CPU/GPU temperature with Psensor.

    --
    kind regards
    Marco

    Send spam to [email protected]

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  • From John Hasler@21:1/5 to All on Tue Jul 22 21:40:01 2025
    I had the same or a similar problem occasionally last year (I haven't
    seen it for at least six months). Killing Firefox cured it when I could
    get to it before the load factor got too high. It seemed to only show
    up when Firefox had been running for a long time.

    I run Unstable.
    --
    John Hasler
    [email protected]
    Elmwood, WI USA

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  • From Stefan Monnier@21:1/5 to All on Tue Jul 22 21:40:01 2025
    I am new to this list I am experiencing system lockups when using
    firefox and chromium browsers. When the system freezes I can only
    recover by rebooting and reloading the browsers
    How can I fix this problem?

    It depends on the origin of the problem, which is not always easy to
    figure out. My crystal ball says it's likely a problem of thrashing
    because the Javascript in the page(s) you're visiting end up using way
    too much memory, such that the Linux kernel starts spending all its time
    moving data back&forth between the RAM and the storage.

    If you add more RAM to your system, this can help, tho if the Javascript
    code is bad enough it will just delay the inevitable a little bit.

    On one of my desktop, I added a file

    % cat /etc/security/limits.d/10-bound-rss.conf
    * hard rss 4096000
    %

    so that any given process cannot have more than 4GB of the RAM for
    itself, which tends to confine the problem: maybe one process will
    thrash but the rest of the system is still responsive; instead of
    thrashing it can also cause the process to run out of memory, giving
    a "clean" failure.

    Of course, with 16GB of RAM, there's still a risk that 4 faulty
    processes bring the machine down to its knees but it's much less likely.


    Stefan

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  • From John Hasler@21:1/5 to All on Tue Jul 22 21:50:01 2025
    If Firefox is the culprit it can help to install one of the addons that
    unload idle tabs and also set the relevant limits in Firefox.
    --
    John Hasler
    [email protected]
    Elmwood, WI USA

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  • From Titus Newswanger@21:1/5 to All on Tue Jul 22 23:20:02 2025
    This is a multi-part message in MIME format.
    On 7/22/25 09:49, tg30 wrote:
    I am new to this list
    I am experiencing system lockups when using firefox and chromium
    browsers. When the system freezes I can only recover by rebooting and reloading the browsers

    A bit ago I had random system freezes going on. I was not using firefox
    or chromium. There seemed to be no pattern or reason to the lockups.

    One day I swapped out the PSU (power supply) because I was experimenting
    on another project. The random freeze-ups vanished and it has been
    stable since.

    --
    Thank You!

    Titus Newswanger
    Curtiss WI

    <!DOCTYPE html>
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    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    </head>
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    <p><br>
    </p>
    <div class="moz-cite-prefix">On 7/22/25 09:49, tg30 wrote:<br>
    </div>
    <blockquote type="cite" cite="mid:nFkp-L5FWfwNCey1INw4CIilr_43GmV_GdEzuaJMHNKFHUZN3Qms61Uj7x34OcwNi-XXVBbn97Wtx3jJslhuXcY4ME4qniz2cjJIrKunMHo=@pm.me">
    <meta http-equiv="content-type" content="text/html; charset=UTF-8">
    <div style="font-family: Arial, sans-serif; font-size: 14px;">I am
    new to this list</div>
    <div style="font-family: Arial, sans-serif; font-size: 14px;">I am
    experiencing system lockups when using firefox and chromium
    browsers. When the system freezes I can only recover by
    rebooting and reloading the browsers</div>
    </blockquote>
    <p>A bit ago I had random system freezes going on. I was not using
    firefox or chromium. There seemed to be no pattern or reason to
    the lockups.</p>
    <p>One day I swapped out the PSU (power supply) because I was
    experimenting on another project. The random freeze-ups vanished
    and it has been stable since.<br>
    </p>
    <pre class="moz-signature" cols="72">--
    Thank You!

    Titus Newswanger
    Curtiss WI</pre>
    </body>
    </html>

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