[pptp-server] PoPToP and SMP?

[Kenneth E. Lussier]

It depends on your kernel version. The 2.2.14 and below had SMP spin
lock problems in the ppp/tty code.Your best bet is to try the 2.2.17
kernel and hope for the best. 

FYI,
Kenny
Jamin Collins wrote:
> 
> Has anyone succeeded in getting PoPToP to run on a dual processor system?  I
> ask because I've got two systems that I need to have VPN access to (from
> Linux and Windows machines).  I've installed PoPToP on a single processor
> system and it's running perfectly.  However, following the same steps on the
> dual processor system I get the following in my logs when trying to connect.
> 
> Oct 26 19:35:41 Forseti pptpd[21607]: CTRL: Client 192.168.0.108 control
> connection started
> Oct 26 19:35:41 Forseti pptpd[21607]: CTRL: Starting call (launching pppd,
> opening GRE)
> Oct 26 19:35:42 Forseti kernel: CSLIP: code copyright 1989 Regents of the
> University of California
> Oct 26 19:35:42 Forseti kernel: PPP: version 2.3.11 (demand dialling)
> Oct 26 19:35:42 Forseti kernel: PPP line discipline registered.
> Oct 26 19:35:42 Forseti kernel: registered device ppp0
> Oct 26 19:35:42 Forseti pppd[21608]: pppd 2.3.11 started by root, uid 0
> Oct 26 19:35:42 Forseti pppd[21608]: Using interface ppp0
> Oct 26 19:35:42 Forseti pppd[21608]: Connect: ppp0 <--> /dev/pts/2
> Oct 26 19:35:42 Forseti pptpd[21607]: Buffering out-of-order packet; got 1
> after 4294967295
> Oct 26 19:35:42 Forseti pptpd[21607]: Packet reorder timeout waiting for 0
> Oct 26 19:35:42 Forseti pptpd[21607]: Buffering out-of-order packet; got 2
> after 0
> Oct 26 19:35:42 Forseti kernel: PPP BSD Compression module registered
> Oct 26 19:35:42 Forseti kernel: PPP MPPE compression module registered
> Oct 26 19:35:42 Forseti kernel: PPP Deflate Compression module registered
> Oct 26 19:35:42 Forseti pppd[21608]: MSCHAP-v2 peer authentication succeeded
> 
> for billy
> Oct 26 19:35:42 Forseti pppd[21608]: LCP terminated by peer
> Oct 26 19:35:42 Forseti pppd[21608]: Modem hangup
> Oct 26 19:35:42 Forseti pppd[21608]: Connection terminated.
> Oct 26 19:35:42 Forseti pppd[21608]: Connect time 0.0 minutes.
> Oct 26 19:35:42 Forseti pppd[21608]: Sent 406 bytes, received 415 bytes.
> Oct 26 19:35:42 Forseti pppd[21608]: Exit.
> Oct 26 19:35:47 Forseti pptpd[21607]: GRE: read error: Bad file descriptor
> Oct 26 19:35:47 Forseti pptpd[21607]: CTRL: PTY read or GRE write failed
> (pty,gre)=(-1,-1)
> Oct 26 19:35:47 Forseti pptpd[21607]: CTRL: Client 192.168.0.108 control
> connection finished
> 
> Any ideas?
> 
> Jamin W. Collins
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