Hi,
Tom Judge wrote:
Ari Suutari wrote:
Ari Suutari wrote:
I have now tested with real hardware (ethernet is fxp0) and
under VmWare (ethernet is lnc0). Same problem on both.
I'll have to correct this. Carp works with fxp0. Problem is
only under vmware, which makes me more and more suspect
that it is because lnc0 does not support link state reporting
(it seems to be present on only a few drivers).
I do remember seeing this problem when developing some systems in vmware
that the carp interfaces where always in INIT when the system booted. I
added a small rc script to for the interfaces up using 'ifconfig carp0
up' which seemed to make the interfaces come up however if on system is
unplugged from the network it will automatically put itself into the
master state until it can talk to the other servers in the carp group.
I already found the problem, it is in netinet/ip_carp.c.
Since lnc driver doesn't support link state, the state is
always LINK_STATE_UNKNOWN and carp code doesn't understand this.
Following patch fixes it for me:
cvs diff: Diffing .
Index: ip_carp.c
===================================================================
RCS file: /opt/freebsd-cvs/src/sys/netinet/ip_carp.c,v
retrieving revision 1.27.2.8
diff -c -r1.27.2.8 ip_carp.c
*** ip_carp.c 25 Sep 2006 13:01:59 -0000 1.27.2.8
--- ip_carp.c 13 Oct 2006 11:11:08 -0000
***************
*** 2116,2122 ****
{
CARP_SCLOCK_ASSERT(sc);
! if (sc->sc_carpdev->if_link_state != LINK_STATE_UP ||
!(sc->sc_carpdev->if_flags & IFF_UP)) {
sc->sc_flags_backup = SC2IFP(sc)->if_flags;
SC2IFP(sc)->if_flags &= ~IFF_UP;
--- 2116,2122 ----
{
CARP_SCLOCK_ASSERT(sc);
! if (sc->sc_carpdev->if_link_state == LINK_STATE_DOWN ||
!(sc->sc_carpdev->if_flags & IFF_UP)) {
sc->sc_flags_backup = SC2IFP(sc)->if_flags;
SC2IFP(sc)->if_flags &= ~IFF_UP;
Ari S.
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