PPPoE crash: Fatal signal 4

[Paul D]

See https://github.com/openwrt/openwrt/pull/22286



On 2026-03-05 15:14, Filippo Carletti wrote:
> Are we going to backport the fix?
> https://github.com/ppp-project/ppp/commit/f8d994052e3858848ce11318085e04fe7a1cfb28
> 
> On Sun, Jan 18, 2026 at 4:24 PM Filippo Carletti
> <filippo.carletti at gmail.com> wrote:
>>
>> Hello,
>>
>>> Could you please share the pacp which triggers this problem.
>>
>> The attached "replay.pcap" contains only the packets sent from the ISP
>> captured on the ethernet interface. It's the file I used to "crash"
>> pppd.
>>
>> pppd_log.txt is a connection log with debug enabled in /etc/ppp/options.
>>
>> A clarification: I "manage" many routers and most of the PPPoE
>> connections to this ISP work well. Over time, as of today, I found the
>> error in 4 different sites: two resolved after a few days, but I
>> wasn't able to capture the traffic from the ISP.
>> One site has worked for months, but exhibited the problem after a
>> downtime from the ISP.
>>
>> --
>> Filippo
> 
> 
>