The following reply was made to PR kern/172113; it has been noted by GNATS.
From: John Baldwin <j...@freebsd.org>
To: bug-follo...@freebsd.org,
egrosb...@rdtc.ru
Cc:
Subject: Re: kern/172113: [panic] [e1000] [patch] 9.1-RC1/amd64 panices in
igb(4): m_getjcl: invalid cluster type
Date: Thu, 21 Feb 2013 17:12:55 -0500
An update on this. I think we should just use a workaround as this seems to
be specific to a certain set of motherboards. This is the fix I'm using
locally:
Index: if_igb.c
===================================================================
--- if_igb.c (revision 243732)
+++ if_igb.c (working copy)
@@ -1522,6 +1522,15 @@
u32 newitr = 0;
bool more_rx;
+ /*
+ * The onboard adapters on certain SuperMicro X8* boards
+ * trigger a spurious interrupt during boot. Since it
+ * occurs before the interface is fully configured it
+ * triggers a panic. Ignore the interrupt instead.
+ */
+ if (!(adapter->ifp->if_drv_flags & IFF_DRV_RUNNING))
+ return;
+
E1000_WRITE_REG(&adapter->hw, E1000_EIMC, que->eims);
++que->irqs;
--
John Baldwin
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