Displaying 4 results from an estimated 4 matches for "virbpfloadprog".
2020 Jan 21
2
Re: USB-hotplugging fails with "failed to load cgroup BPF prog: Operation not permitted" on cgroups v2
...t; on line 30599.
> >
> > Thanks,
>
> Thanks for the logs, but it did not help to figure out where the issue
> is. I was hoping to see some error output from the syscall but the line
> that should contain it is empty:
>
> 2020-01-20 19:47:15.589+0000: 8579: debug : virBPFLoadProg:78 :
>
> Can you please check system logs and output of dmesg?
>
> I've managed to run into this article [1] that explains that even if you
> have all permissions and no SELinux you can still be blocked by
> something called kernel_lockdown and it should appear in dmesg.
>...
2020 Feb 15
0
Re: USB-hotplugging fails with "failed to load cgroup BPF prog: Operation not permitted" on cgroups v2
...rdina (2020-01-21 12:53:49)
> > Thanks for the logs, but it did not help to figure out where the issue
> > is. I was hoping to see some error output from the syscall but the line
> > that should contain it is empty:
> >
> > 2020-01-20 19:47:15.589+0000: 8579: debug : virBPFLoadProg:78 :
> >
> > Can you please check system logs and output of dmesg?
> >
> > I've managed to run into this article [1] that explains that even if you
> > have all permissions and no SELinux you can still be blocked by
> > something called kernel_lockdown and...
2020 Jan 21
0
Re: USB-hotplugging fails with "failed to load cgroup BPF prog: Operation not permitted" on cgroups v2
...where I manually add the USB device,
> on line 30599.
>
> Thanks,
Thanks for the logs, but it did not help to figure out where the issue
is. I was hoping to see some error output from the syscall but the line
that should contain it is empty:
2020-01-20 19:47:15.589+0000: 8579: debug : virBPFLoadProg:78 :
Can you please check system logs and output of dmesg?
I've managed to run into this article [1] that explains that even if you
have all permissions and no SELinux you can still be blocked by
something called kernel_lockdown and it should appear in dmesg.
Pavel
[1] <https://gehrcke.d...
2020 Jan 18
3
USB-hotplugging fails with "failed to load cgroup BPF prog: Operation not permitted" on cgroups v2
Hi all,
I've disabled cgroups v1 on my system with the kernel boot option
"systemd.unified_cgroup_hierarchy=1". Since doing so, USB hotplugging
fails to work, seemingly due to a permissions problem with BPF. Please
note that the technique I'm going to describe worked just fine for
hotplugging USB devices to running domains until this change.
Attaching / detaching USB devices