Messages in this thread Patch in this message | | | Subject | Re: [PATCH v2] Re: WAN: new PPP code for generic HDLC | From | Krzysztof Halasa <> | Date | Tue, 25 Mar 2008 16:50:27 +0100 |
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Jeff Garzik <jeff@garzik.org> writes:
> I guess it should go into 2.6.25, not sure about "stable" > series. I will appreciate any feedback, review and/or test > results.
Right. Perhaps I should care a bit more about the stable series...
> 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.
Sure.
> 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?
Well, there was something like "minimal testing", and it doesn't panic 100% like the old code does. But the probability that it won't work correctly is quite high.
IOW: the new version is certainly better than the old one, though it's not the normal quality (in terms of testing) I'd like to see.
> So quite honestly a CONFIG_BROKEN patch might indeed be more > appropriate since generic HDLC works with Frame Relay at least...
Actually Frame Relay and other protocols are not affected, the PPP patch doesn't change them a bit, it's a different module. The new code only affect PPP protocol.
I'm fine with the Kconfig patch, actually I'm not sure what is better at this time - a known broken module marked as such or a new module with some small chances that it will crash the machine and with much bigger chances that it won't work with a certain PPP implementation on the other end.
Something like that? Untested :-)
Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
--- a/drivers/net/wan/Kconfig +++ b/drivers/net/wan/Kconfig @@ -150,9 +150,13 @@ config HDLC_FR config HDLC_PPP tristate "Synchronous Point-to-Point Protocol (PPP) support" - depends on HDLC + depends on HDLC && BROKEN help Generic HDLC driver supporting PPP over WAN connections. + This module is currently broken and will cause a kernel panic + when a device configured in PPP mode is activated. + + It will be replaced by new PPP implementation in Linux 2.6.26. If unsure, say N.
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