Re: Crash using tun device

From: Victor Snezhko (snezhko_at_indorsoft.ru)
Date: 11/12/05

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    To: Pete Carah <pete@altadena.net>
Date: Sat, 12 Nov 2005 17:02:23 +0600

    Pete Carah <pete@altadena.net> writes:

    > I now (cvsup as of a day ago, and also from a week ago) see a
    > spontaneous reboot when using the tun device from userland ppp. This
    > occurs with either umodem or an ssh tunnel on the serial side, and
    > crashes immediately after the IP addresses are set. I don't know if it
    > is in route setting or not; the ssh tunnel script doesn't set the
    > default route via the tunnel (shoot self in foot, anyone?).

    There is a known bug in netinet6 that might cause this behaviour
    (although, I didn't see reboots, only panics). The fix is known but
    has not been committed yet. Here it is:

    --- netinet6/mld6.c Wed Nov 9 08:27:14 2005
    ***************
    *** 640,645 ****
    --- 640,649 ----
                      mld6_stop_listening(in6m);
                      ifma->ifma_protospec = NULL;
                      LIST_REMOVE(in6m, in6m_entry);
    + if (in6m->in6m_timer != IN6M_TIMER_UNDEF)
    + mld_stoptimer(in6m);
                      free(in6m->in6m_timer_ch, M_IP6MADDR);
                      free(in6m, M_IP6MADDR);
              }

    > I didn't see this a month or two ago afaik, though it has been a while
    > since I had to use ppp on either laptop.

    The bug I mentioned was committed on Oct 21.

    If the fix don't help, try to disable INET6 and see if that helps. 

    -- 
WBR, Victor V. Snezhko
EMail: snezhko@indorsoft.ru
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