Re: Various bugs with the new 5.7 kernel on Fedora 32

[George N. White III]

On Sun, 26 Jul 2020 at 12:47, Sreyan Chakravarty  wrote:
> I just upgraded to the new 5.7 kernel and it has a lot of bugs.

If you are using ext4, look for the "swapfile has holes
https://bugzilla.kernel.org/show_bug.cgi?id=207585" message.   There is a
kernel bug, but two proposed fixes, one looks like a quick hack, the other
points to a more basic flaw in the implementation.

One misconfiguration can cause multiple failures.

Other distros are reporting problems and have workarounds:
https://bbs.archlinux.org/viewtopic.php?id=256503
> It can't even initialize my swap file:
>
> Jul 26 21:01:12 localhost.HPNotebook systemd[1]: fedora.swap.swap:
> Failed with result 'exit-code'.
>    6 Jul 26 21:01:12 localhost.HPNotebook systemd[1]: Failed to activate
> swap /fedora.swap.
>    7 Jul 26 21:01:12 localhost.HPNotebook systemd[1]: Dependency failed
> for Swap.
>    8 Jul 26 21:01:12 localhost.HPNotebook systemd[1]: swap.target: Job
> swap.target/start failed with result 'dependency'.
>    9 Jul 26 21:01:12 localhost.HPNotebook swapon[994]: swapon:
> /fedora.swap: swapon failed: Invalid argument
>   10 Jul 26 21:01:26 localhost.HPNotebook swapon[1084]: swapon:
> /fedora.swap: swapon failed: Invalid argument
>   11 Jul 26 21:01:26 localhost.HPNotebook systemd[1]: fedora.swap.swap:
> Failed with result 'exit-code'.
>   12 Jul 26 21:01:26 localhost.HPNotebook systemd[1]: Failed to activate
> swap /fedora.swap.
>   13 Jul 26 21:01:26 localhost.HPNotebook systemd[1]: Dependency failed
> for Swap.
>   14 Jul 26 21:01:26 localhost.HPNotebook systemd[1]: swap.target: Job
> swap.target/start failed with result 'dependency'.
>   15 Jul 26 21:01:26 localhost.HPNotebook swapon[1093]: swapon:
> /fedora.swap: swapon failed: Invalid argument
>   16 Jul 26 21:01:26 localhost.HPNotebook systemd[1]: fedora.swap.swap:
> Failed with result 'exit-code'.
>   17 Jul 26 21:01:26 localhost.HPNotebook systemd[1]: Failed to activate
> swap /fedora.swap.
>   18 Jul 26 21:01:26 localhost.HPNotebook systemd[1]: Dependency failed
> for Swap.
>
> This doesn't happen in 5.6
>
> There are a slew of other problems.
>
> A log file can be found here:
>
> https://pastebin.com/iL9Yd5cj
>
> I really am too tired to file a bug since nothing really gets fixed.

Maybe you shouldn't be using Fedora.   One reason Fedora exists is to catch
problems like this.  Given that there is a simple workaround and more than
one way to "fix" it, it may take some time for a fix to make it into the
kernel.
The bug was reported in May, so "some time" might translate to "real soon
now".
> What I want to do is uninstall the 5.7 kernel. apply

Why not  apply the workaround.
> If I uninstall the kernel will running an older kernel cause problems
> during system upgrade ?
>
> --
> Regards,
> Sreyan
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