On 02/14/2019 10:37 PM, Alexei Starovoitov wrote:
> On Thu, Feb 14, 2019 at 10:33 AM Eric Leblond <eric@xxxxxxxxx> wrote:
>>
>> Hello,
>>
>> On Wed, 2019-02-13 at 20:46 +0100, Eric Leblond wrote:
>>> Hello,
>>>
>>> I've got a simple socket filter program that seems to interrupt when
>>> calling the load_word construct. I'm seeing the first message but
>>> never
>>> the second one.
>>>
>>> The code is the following
>>>
>>> int SEC("filter") hashfilter(struct __sk_buff *skb) {
>>> __u32 nhoff = BPF_LL_OFF + ETH_HLEN;
>>
>> So it seems the problem was coming from this line. Removing BPF_LL_OFF
>> fixes the problem for kernel starting 4.18.
>>
>> Is this a known issue ?
>>
>> Is there something that would allow a BPF file to work independently of
>> the kernel version ?
>
> Daniel,
> can this be related to removal of ld_abs legacy ?
Hm, strange, I'll take a look.
Thanks,
Daniel
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