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Subject: [Bug 219428] em network driver broken in current
Date: Fri, 25 Aug 2017 02:51:33 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D219428

Kaho Toshikazu <kaho@elam.kais.kyoto-u.ac.jp> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kaho@elam.kais.kyoto-u.ac.j
                   |                            |p

--- Comment #8 from Kaho Toshikazu <kaho@elam.kais.kyoto-u.ac.jp> ---
(In reply to gitdev from comment #7)

The panic you met is unrelated to the original report.
Please try this patch.

Index: sys/dev/e1000/if_em.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
--- sys/dev/e1000/if_em.c       (revision 322833)
+++ sys/dev/e1000/if_em.c       (working copy)
@@ -797,6 +797,8 @@
                scctx->isc_txrx =3D &em_txrx;
                scctx->isc_capenable =3D EM_CAPS;
                scctx->isc_tx_csum_flags =3D CSUM_TCP | CSUM_UDP | CSUM_IP_=
TSO;
+               if (adapter->hw.mac.type !=3D e1000_82574)
+                       scctx->isc_msix_bar =3D 0;
        } else {
                scctx->isc_txqsizes[0] =3D roundup2((scctx->isc_ntxd[0] + 1=
) *
sizeof(struct e1000_tx_desc), EM_DBA_ALIGN);
                scctx->isc_rxqsizes[0] =3D roundup2((scctx->isc_nrxd[0] + 1=
) *
sizeof(struct e1000_rx_desc), EM_DBA_ALIGN);

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