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Date:      Tue, 26 Oct 2021 14:03:03 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 259458] iflib_rxeof NULL pointer crash with vmxnet3 driver
Message-ID:  <bug-259458-227-R2hunRwqcN@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-259458-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-259458-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D259458

--- Comment #3 from Andriy Gapon <avg@FreeBSD.org> ---
(kgdb) p *sctx
$16 =3D {isc_magic =3D 3405705229, isc_driver =3D 0xffffffff810f1280
<vmxnet3_iflib_driver>, isc_q_align =3D 512, isc_tx_maxsize =3D 65536,
isc_tx_maxsegsize =3D 16383, isc_tso_maxsize =3D 65550, isc_tso_maxsegsize =
=3D 16383,=20
  isc_rx_maxsize =3D 16383, isc_rx_maxsegsize =3D 16383, isc_rx_nsegments =
=3D 1,
isc_admin_intrcnt =3D 1, isc_vendor_info =3D 0xffffffff810f12b0
<vmxnet3_vendor_info_array>, isc_driver_version =3D 0xffffffff80aead7c "2",=
=20
  isc_parse_devinfo =3D 0x0, isc_nrxd_min =3D {32, 32, 32, 0, 0, 0, 0, 0},
isc_nrxd_default =3D {512, 512, 512, 0, 0, 0, 0, 0}, isc_nrxd_max =3D {2048=
, 2048,
2048, 0, 0, 0, 0, 0}, isc_ntxd_min =3D {32, 32, 0, 0, 0, 0, 0, 0},=20
  isc_ntxd_default =3D {512, 512, 0, 0, 0, 0, 0, 0}, isc_ntxd_max =3D {4096=
, 4096,
0, 0, 0, 0, 0, 0}, isc_nfl =3D 2, isc_ntxqs =3D 2, isc_nrxqs =3D 3,
isc_rx_process_limit =3D 0, isc_tx_reclaim_thresh =3D 0, isc_flags =3D 2621=
53,=20
  isc_name =3D 0x0}


(kgdb) p rxq->ifr_ctx->ifc_softc_ctx
$22 =3D {isc_vectors =3D 9, isc_nrxqsets =3D 8, isc_ntxqsets =3D 8, isc_min=
_tx_latency
=3D 0 '\000', isc_rx_mvec_enable =3D 0 '\000', isc_txrx_budget_bytes_max =
=3D 2097152,
isc_msix_bar =3D 24, isc_tx_nsegments =3D 32, isc_ntxd =3D {512, 512, 0,=20
    0, 0, 0, 0, 0}, isc_nrxd =3D {1024, 512, 512, 0, 0, 0, 0, 0}, isc_txqsi=
zes =3D
{8192, 8192, 0, 0, 0, 0, 0, 0}, isc_rxqsizes =3D {16384, 8192, 8192, 0, 0, =
0, 0,
0}, isc_txd_size =3D "\000\000\000\000\000\000\000",=20
  isc_rxd_size =3D "\000\000\000\000\000\000\000", isc_tx_tso_segments_max =
=3D 32,
isc_tx_tso_size_max =3D 65532, isc_tx_tso_segsize_max =3D 16383, isc_tx_csu=
m_flags
=3D 5654, isc_capabilities =3D 6621115, isc_capenable =3D 6554555,=20
  isc_rss_table_size =3D 128, isc_rss_table_mask =3D 127, isc_nrxqsets_max =
=3D 8,
isc_ntxqsets_max =3D 8, isc_tx_qdepth =3D 2048, isc_intr =3D IFLIB_INTR_MSI=
X,
isc_rxd_buf_size =3D {0, 0, 4096, 0, 0, 0, 0, 0}, isc_max_frame_size =3D 22=
,=20
  isc_min_frame_size =3D 0, isc_pause_frames =3D 0, isc_vendor_info =3D
{pvi_vendor_id =3D 0, pvi_device_id =3D 0, pvi_subvendor_id =3D 0, pvi_subd=
evice_id =3D
0, pvi_rev_id =3D 0, pvi_class_mask =3D 0, pvi_name =3D 0x0}, isc_disable_m=
six =3D 0,=20
  isc_txrx =3D 0xffffffff810f1000 <vmxnet3_txrx>}

--=20
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