Re: Legacy Linux kernel support

[Mario Rugiero <mrugiero () gmail com>]

El mar., 8 oct. 2019 a las 13:29, Mario Rugiero (<mrugiero () gmail com>) escribió:
> It depends.
> Which distro is it?
> When does it EOL?
> Do we expect a release of libpcap before that?
> What version of libpcap does it ship?
> Do the providers ship it with custom patches?
> For the "official" distro package, is it likely to have a major upgrade?
> Do they currently provide bug-fixes on their own
> Is it simpler to just branch away for critical fixes? Note that
> patches will be backported one way or another if they don't do major
> upgrades.
> Considering it's an LTS, I'm guessing they don't do major upgrades and
> they keep vendor patches already, so that's what they'll keep doing.
Also, I just checked, 2.6.32 supports TPACKET_V2, which should still
be supported because of immediate mode.
So we can make them happy, too.
I still dislike the idea of advertising such support, tho, as it may imply
a compromise to add workarounds and such if they eventually need
them, and that generally is a slippery slope.

El mar., 8 oct. 2019 a las 14:24, Guy Harris (<gharris () sonic net>) escribió:
>         cp /dev/null patch
>
> should suffice. :-)
>
> I.e., we're *already* using TPACKET_V2 if immediate mode is specified.  See prepare_tpacket_socket() - if 
> handle->opt.immediate is set, it doesn't try TPACKET_V3, and skips to TPACKET_V2.
Cool! I must have missed it.
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