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SubjectRe: PPP is not SMP safe in 2.2.X, Oops
Hi,

I am running 2.2.14 on a Dual Celeron 400 system, and I too have
experienced a small number of complete system freezes while using ppp. I
usually log into this system over X and the system completely hangs giving
no error message. Could this be the same problem? If so what is the best
way of getting the Oops text?

Thanks

James

On Mon, 7 Feb 100, Oleg Drokin wrote:

> Hello!
>
> > > > another ppp_tty_push - uh, I really hope ppp->tty_pushing isn't the only
> > > > thing serializing access here.. that doesn't look healthy to me.
> > > I think that exactly this happens, we have 2 ppp_tty_push running, one after
> > > one.
> > Yeah, I wouldn't doubt it. Probably the solution will be to convert tty_pushing
> > to an atomic_t.
> > Time for the famous linux-kernel mantra: please try this untested patch
> :)
> Well, I'll do it this evening, and then will wait for warnings in log.
> I hope it will not last long till bug sows itself.
>
> > Anyway, if the patch works you should get some lines logged in the format:
> > ppp device ppp0: tpkt set to NULL at point N
> We'll see.
>
> Thank you.
>
> Bye,
> Oleg
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