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manual abstract
Problems fixed in recent versions
Table 4 HP-UX 11i v3 January/March 2013 fixes — 10GigEthr-02 B.11.31.1301 and B.11.31.1303
SR number
Description
QXCR1001233679
Link status is incorrectly reported for LAN ports connected to a switch or pass-through
When LAN ports are connected to a switch or pass-through, the iexgbe driver might fail to
detect a cable connect or disconnect. As a result, the LAN interface link status on the system
side is incorrectly displayed by nwmgr and lanadmin. For example, after a cable disconnect,
the status is incorrectly reported as UP instead of DOWN.
QXCR1001222146
Port unavailable, queues fail to initialize on Superdome
While doing stress testing with heavy traffic along with periodic port resets, olrad, and
ifconfig plumb/unplumb, the port might be unable to initialize the maximum number of
queues supported. In such cases for drivers with versions AR1209 and earlier, the port
transitions to the DEAD state. To make the port usable, a system reboot is required. The issue
is rarely reproducible; reproducing the issue requires the above-mentioned stress testing
sustained over a long duration.
Table 5 HP-UX 11i v3 September 2012 fixes — 10GigEthr-02 B.11.31.1209
SR number
Description
QXCR1001202586
The host encountered a rare hang situation as the intctl command gets stuck within the
kernel after repeated interrupt migrations are run on the host backing interface. The cause is
the driver failing to perform an appropriate handshake with the kernel module responsible
for completing the interrupt migration event under certain rare circumstances.
Table 6 HP-UX 11i v3 May 2012 Fixes — 10GigEthr-02 B.11.31.1205
SR number
Description
QXCR1001209171
AVIO: High outbound discards on HPVM guest with iexgbe interface. TCP connections (such
as rlogin and telnet) from a remote system to the guest do not work and the guest hangs
intermittently.
QXCR1001182096
When packets with an invalid LLC, IP or TCP header length are sent through the HPVM guest
igssn interface, the iexgbe driver will drop such packets. But the guest is not aware of
such drops and it continues to expect send completion for those packets. This situation results
in a gradual reduction of the number of usable descriptors for igssn, which causes
performance to degrade and, eventually, the igssn interface to hang.
QXCR1001192266
For non-Flex-10 (non-VC) interfaces, when using customized iexgbe configuration file settings
that enable Jumbo Frames (MTU size greater than 1500), problems occur at startup. This
problem surfaced after Tx and Rx flow control support was introduced to the iexgbe driver
(QXCR1001093086). The workaround in the preceding release was to disable flow control
by default. The B.11.31.1205 release sets Tx and Rx flow control to ON by default. Any
request to turn on Jumbo Frames will override the Rx flow control settings and automatically
set Rx flow control to OFF.
Table 7 HP-UX 11i v3 March 2012 Fixes — 10GigEthr-02 B.11.31.1203.01
SR number
Description
QXCR1001192266
Disables flow control by default. This removes the possibility of bringing up issues introduced
with the B.11.31.1201 release (QXCR1001093086). For more information about the issues,
see Section 4 (page 10).
4 Known problems and limitations
The following problems and limitations are known to exist in version B.11.31.1303.01:
•
QXCR1001247823 — iexgbe driver intermittently stops collecting/incrementing link statistics
The iexgbe driver intermittently stops collecting and updating link statistics. This does not
affect data traffic; it only affects statistics. However, this can cause false link failure detection;
10
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