On Thu, 2016-09-22 at 14:46 +0300, Binyamin Sharet wrote:
> On Thu, Sep 22, 2016 at 11:18 AM, Binyamin Sharet <s.binya...@gmail.com> 
> wrote:
> > On Thu, Sep 22, 2016 at 11:02 AM, Oliver Neukum <oneu...@suse.com> wrote:
> >> On Thu, 2016-09-22 at 10:50 +0300, Binyamin Sharet wrote:
> >>> On Thu, Sep 22, 2016 at 10:35 AM, Oliver Neukum <oneu...@suse.com> wrote:
> >>> > On Thu, 2016-09-22 at 09:53 +0300, Binyamin Sharet wrote:
> >>> >> On Wed, Sep 21, 2016 at 11:09 PM, Malcolm Priestley 
> >>> >> <tvbox...@gmail.com> wrote:
> >>> >> >
> >>> >> Malcolm, just to make it clear, this bug was not found with an
> >>> >> actual device, but with emulation.
> >>> >
> >>> > It was quite peculiar a bug, though. Could you prepare a test kernel
> >>> > without BPF?
> >>> >
> >>> >         Regards
> >>> >                 Oliver
> >>> >
> >>> >
> >>>
> >>> Oliver,
> >>>
> >>> If this question was directed to me, I will need some clarification
> >>> of what is needed (and also - what's BPF?)
> >>
> >> BPF = Berkeley Packet Filter (a mechanism to filter packets going over a
> >> socket)
> >>
> >> The oops you reproduced was in the BPF. That is rather generic code
> >> without connection to the driver in question. That raises the question
> >> whether you've accidentally triggered a generic bug.
> >> To rule that out a rerun on a kernel compiled without CONFIG_BPF would
> >> be useful. Or you could build an initrd with the BPF modules
> >> blacklisted, so we are sure the test system does not use BPF.
> >>
> >>         Regards
> >>                 Oliver
> >>
> >>
> >>
> >
> > Thanks Oliver, will do.
> >
> > -- Binyamin
> 
> I compiled the kernel without BPF and still got an issue (attached)
> How can I verify the BPF is not enabled/part of the kernel?

Do you have CONFIG_BPF_JIT enabled?

        Regards
                Oliver


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