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Thread: 20.04.1 frequent freezes, hangs, or lockups?

  1. #1
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    Question 20.04.1 frequent freezes, hangs, or lockups?

    A few weeks ago I clean installed 20.04.1 and at the same time I switched to the Brave Browser. As I was frequently experiencing my system freezing, and by freezing I mean I could still move the mouse cursor but nothing would respond, I assumed the issue was the Brave Browser and I found on their git a history of a similar issue. I disabled hardware acceleration in Brave, which is a reported workaround, but when that did not help I switched back to Chrome.

    Unfortunately even using the latest version of Chrome, the issue is ongoing. When the system becomes unresponsive it stays so for approximately 30 seconds to 1 minute, and this will happen perhaps 5 or 6 times throughout a working day. A few times I have had to use REISUB or when that did not work cold reboot, but the majority of the time it just starts responding again. I have tried to completely mirror the same clean install setup and packages on my XPS 13 9360, which does not experience the same issue.

    Please find the log pastebinned here I created after it happened and immediately after it started responding again this morning. I do not think I was doing anything especially heavy, just Chrome open with 4 or 5 tabs. My system is an i5-4690K, GTX 970, 8GB of RAM, Samsung SSD 840 EVO Basic SATA.

    How can I start to resolve this please?

  2. #2
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    Re: 20.04.1 frequent freezes, hangs, or lockups?

    Are you using the Nvidia drivers?

  3. #3
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    Re: 20.04.1 frequent freezes, hangs, or lockups?

    I think the driver actually updated this morning although I have been experiencing the issue for a few weeks.

    Quote Originally Posted by CelticWarrior View Post
    Are you using the Nvidia drivers?
    Code:
    ~$ nvidia-smi
    Sat Oct  3 11:08:58 2020       
    +-----------------------------------------------------------------------------+
    | NVIDIA-SMI 450.66       Driver Version: 450.66       CUDA Version: 11.0     |

    EDIT: It just happened again, I was browsing in Chrome, then I noticed some text in Discord was not loading (first time seeing this) so I exited Discord from the system tray panel (top right), re-opened Discord from my dock and while it was opening I clicked on Chrome and noticed everything had stopped responding, then about 10 seconds later Discord opened. I took this log immediately: https://pastebin.ubuntu.com/p/hKNtVqdkbz/
    Last edited by Dáire Fagan; October 3rd, 2020 at 11:27 AM.

  4. #4
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    Re: 20.04.1 frequent freezes, hangs, or lockups?

    @Mod please delete this post.

  5. #5
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    Re: 20.04.1 frequent freezes, hangs, or lockups?

    4 or 5 lockups in the last 15 minutes with Chrome running and 5 tabs. https://pastebin.ubuntu.com/p/xy8krNKQ22/

    Is there some way I could isolate what might be causing this?

  6. #6
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    Re: 20.04.1 frequent freezes, hangs, or lockups?

    Searching for a similar error to one of those that occurred a lot this morning:
    Code:
    06:13:58 fuser: Cannot stat file /proc/2733/fd/1023: Permission denied
    (the path after /proc/ varies) I found this thread Getting strange errors while downloading mysql and although I was not installing MySQL and I do not have it installed but in case it could help I followed some of the troubleshooting steps: libaio1 was installed but I input

    Code:
    sudo apt-get install libaio1 libaio-dev
    sudo apt install aptitude
    sudo aptitude update
    sudo aptitude upgrade
    and rebooted. Unfortunately the same issue occurs, and as you will see from the latter 4 logs this happened as many times over 34 minutes, and those are just the ones I generated logs for and the count is more like twice that. Since rebooting about 30 minutes ago it has only happened twice so far but I expect it to continue throughout the day.

    https://pastebin.ubuntu.com/p/dCBjJqJRzs/
    https://pastebin.ubuntu.com/p/vM8X6TbCC6/
    https://pastebin.ubuntu.com/p/WnmRmX65c8/
    https://pastebin.ubuntu.com/p/jnhGPFgNpX/

  7. #7
    Join Date
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    Re: 20.04.1 frequent freezes, hangs, or lockups?

    I was able to resolve this by rolling back with Timeshift but the issue keeps recurring.

    Is there anything else I could try here please?

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