On 9/15/06, Gleb Smirnoff <[EMAIL PROTECTED]> wrote:
On Wed, Sep 13, 2006 at 03:09:56PM +0200, Slawek Zak wrote:
S> I'm testing network failover on IBM BladeCenter running FreeBSD 6.1
S> STABLE for Sep 6th.
S>
S> I suspect a problem with link state change detection in bge code. When
S> I disable internal port on chassis built-in ethernet switch, kernel
S> floods syslog with messages about link state changes and coalescing
S> them. Log snippet follows:
S>
S> Sep 13 14:58:28 w3-6 kernel: bge1: link state changed to DOWN
S> Sep 13 14:58:28 w3-6 kernel: bge1: link state changed to UP
S> Sep 13 14:58:29 w3-6 kernel: bge1: link state changed to DOWN
S> Sep 13 14:58:29 w3-6 kernel: bge1: link state changed to UP
S> Sep 13 14:58:29 w3-6 kernel: bge1: link state changed to DOWN
S> Sep 13 14:58:29 w3-6 kernel: bge1: 4 link states coalesced
S> Sep 13 14:58:29 w3-6 kernel: bge1: link state changed to DOWN
S> Sep 13 14:58:29 w3-6 kernel: bge1: 11 link states coalesced
S> Sep 13 14:58:29 w3-6 kernel: bge1: link state changed to UP
S> Sep 13 14:58:30 w3-6 kernel: bge1: link state changed to DOWN
S> Sep 13 14:58:30 w3-6 kernel: bge1: 3 link states coalesced
S> Sep 13 14:58:30 w3-6 kernel: bge1: link state changed to UP
S> Sep 13 14:58:30 w3-6 kernel: bge1: 7 link states coalesced
S> Sep 13 14:58:30 w3-6 kernel: bge1: link state changed to DOWN
S> Sep 13 14:58:30 w3-6 kernel: bge1: 4 link states coalesced
S> Sep 13 14:58:30 w3-6 kernel: bge1: link state changed to DOWN
S> Sep 13 14:58:30 w3-6 kernel: bge1: 2 link states coalesced
S>
S> As you can see, messages are generated in rapid succession and
S> therefore any probing of link state change by ng_one2many for
S> interface failover is meaningless. Ethernet switch doesn't register
S> and log any interface state changes after disabling this port. LS20
S> blades use chipset 8850. My firmware is 3.38, full changelog, if it is
S> of any help, is here:
S>
S>
http://www-307.ibm.com/pc/support/site.wss/license.do?filename=pc_servers/brcm_fw_nic_12021_anyos_anycpu.chg
S>
S> Any ideas what might be wrong?
Please try to add hw.bge.fake_autoneg=1 to /boot/loader.conf. May be
this will help.
I did it, but sysctl doesn't show the value.
w3-6# sysctl hw.bge
sysctl: unknown oid 'hw.bge'
This sysctl seems to be defined in if_bge.c though:
static int bge_fake_autoneg = 0;
TUNABLE_INT("hw.bge.fake_autoneg", &bge_fake_autoneg);
/S
--
Sławek Żak / UNIX Systems Administrator
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