Date: Tue, 6 Aug 2013 18:00:53 +0000 (UTC) From: Jack F Vogel <jfv@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r254002 - head/sys/dev/e1000 Message-ID: <201308061800.r76I0reo099480@svn.freebsd.org>
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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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