Problems with pppd and SMP

[Ivo Sbalzarini]

I have a problem with pppd on a SMP (dual Pentium III-450, ASUS P2B-D) Linux box. I used pppd 2.3.5 on my Linux (kernel 2.2.5) together with chap/pap to connect to my ISP. Now, I had to upgrade my system with a second processor in order to get enough power for some computational fluid dynamics simulations. Everything works fine, except pppd. As soon as I enabled SMP in my kernel (I only set SMP=1, enabled enhanced RTC-support and MTRR and made sure that APM is disabled and changed no other options), pppd failed to establish a connection. My syslog looks as follows:   pppd[419]: Serial connection established. pppd[419]: ioctl(PPPIOCGUNIT): Operation not permitted(1) pppd[419]: Hangup (SIGHUP) pppd[419]: Exit.   Since I was not able to solve the problem by myself (read man-pages, tried different kernel configurations and tried (in vain) to understand the problem), you are my last chance.   Is this a known problem? Do you have any idea why this happenes and how to solve it? What operation is not permitted and why?   I would be very thankful if you could help me.   best regards,   Ivo   ------------------------------------- Ivo Sbalzarini Computational Fluid Dynamics Institute of Fluid Dynamics Swiss Federal Institute of Technology ETH Zurich 8092 Zurich, Switzerland [EMAIL PROTECTED]