On 5/13/19 10:25 AM, Mark Rutland wrote:
> On Mon, May 13, 2019 at 10:20:19AM -0700, 'Eric Dumazet' via syzkaller wrote:
>> On Mon, May 13, 2019 at 10:17 AM Mark Rutland <mark.rutl...@arm.com> wrote:
>>>
>>> On Mon, May 13, 2019 at 09:38:55AM -0700, 'Eric Dumazet' via syzkaller
>>> wrote:
>>>> Various things in eBPF really require us to disable preemption
>>>> before running an eBPF program.
>>>
>>> Is that true for all eBPF uses? I note that we don't disable preemption
>>> in the lib/test_bpf.c module, for example.
>>>
>>> If it's a general requirement, perhaps it's worth an assertion within
>>> BPF_PROG_RUN()?
>>
>> The assertion is already there :)
>>
>> This is how syzbot triggered the report.
>
> Ah! :)
>
> I also see I'm wrong about test_bpf.c, so sorry for the noise on both
> counts!
No worries, thanks for reviewing !
