Re: [PATCH v2] Re: WAN: new PPP code for generic HDLC

From: Jeff Garzik
Date: Tue Mar 25 2008 - 10:55:35 EST


Krzysztof Halasa wrote:
Hi,

I wrote:

New synchronous PPP implementation for generic HDLC.

So are we leaving the generic-HDLC+PPP in broken state for 2.6.25,
aren't we?

If we do, perhaps a "|| BROKEN" in drivers/net/wan/Kconfig would make
sense? Any attempt to use it will cause kernel panic immediately (PPP
with generic HDLC only; drivers using syncppp.c directly are not
affected). I can make that trivial Kconfig patch of course.

In your original email you said

I guess it should go into 2.6.25, not sure about "stable"
series. I will appreciate any feedback, review and/or test
results.

At the time of the posting 2.6.25-rc6 had already been released, which seems like an inappropriate time for all that new code, which has been given so little exposure to real world testing.

Certainly your original message said PPP panics, but without even minimal testing how do we know that your new code doesn't have equally problematic issues?

So quite honestly a CONFIG_BROKEN patch might indeed be more appropriate since generic HDLC works with Frame Relay at least...

Comments? IMO the current code is a known risk (PPP panic, FR works) whereas the new code is an unknown risk very late in 2.6.25-rc -- but with a good chance to make HDLC+PPP work again.

Jeff



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