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Some more info on the pppd hang
Authored by: hamarkus on Sep 01, '04 06:23:03PM

Interesting, while I was still using a modem (now on cable), my connection would drop on average every 30 minutes, sometimes getting stuck in disconnecting mode (in the menu bar) during that. Also sending faxes (via FaxCenter, i.e. using efax) to unreliable destinations could cause hangs of the modem with the process efax getting stuck.

The 20 second delay you mentioned is similar to the delay I observed after waking up from sleep (the computer not me) during which trying to start a dial-up connection via the menu bar would simply be ignored.

I figured out that if I killed the modemd, AppleModem and pppd processes in that order I could almost always recover everything and reconnect to the internet without having to restart the OS (pppd sometimes needed several kill -9 attempts).

But the one time I used kill -9 on pppd without first killing modemd and AppleModem I got a kernel panic. I guess if you kill a process which other processes rely on (modemD and AppleModem relying on pppd) you can seriously screw up your system.



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