Author: jfv
Date: Tue Aug 6 18:00:53 2013
New Revision: 254002
URL: http://svnweb.freebsd.org/changeset/base/254002
Log:
When the igb driver is static there are cases when early interrupts occur,
resulting in a panic in refresh_mbufs, to prevent this add a check in the
interrupt handler for DRV_RUNNING.
MFC after: 1 day (critical for 9.2)
Modified:
head/sys/dev/e1000/if_igb.c
Modified: head/sys/dev/e1000/if_igb.c
==============================================================================
--- head/sys/dev/e1000/if_igb.c Tue Aug 6 17:22:06 2013 (r254001)
+++ head/sys/dev/e1000/if_igb.c Tue Aug 6 18:00:53 2013 (r254002)
@@ -1572,6 +1572,10 @@ igb_msix_que(void *arg)
u32 newitr = 0;
bool more_rx;
+ /* Ignore spurious interrupts */
+ if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
+ return;
+
E1000_WRITE_REG(&adapter->hw, E1000_EIMC, que->eims);
++que->irqs;
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