[Bloat] Openwrt stability?

[Stephen Hemminger]

On Tue, 5 Jan 2021 11:49:58 -0500
Daniel Sterling <sterling.daniel at gmail.com> wrote:

> On Tue, Jan 5, 2021 at 11:10 AM Michael Richardson <mcr at sandelman.ca> wrote:
> >
> > Stephen Hemminger <stephen at networkplumber.org> wrote:  
> >     > Any idea how to debug this? Is there a way to get serial console?  
> >
> > It depends upon your device, but in most cases, open the case, find the pins,
> > attach USB/TTL interface.  Some newish devices (Turris MOX, for instance),
> > annoyingly need 1.8V TTL interfaces, which are harder to find and more
> > expensive. ($20 vs $3)  
> 
> Best option may be to just buy better supported hardware :)
> 
> I've been running openwrt on a small mobile-class PC (sandy bridge
> celeron) and then just using stock UBNT SOHO (amplifi HD) access
> points for the wifi itself. This is working rather well. The amplifi
> units have buffers that are too big but that's mitigated on the
> openwrt side with cake

It is Linksys WRT3200ACM which seemed the best at the time.

Did get the problem down to one device on home network is doing something
that causes crash. It happens now about 20sec after startup.
I suspect a kernel bug and magic bad packet (fragmentation?).