
/devices/pci@0,0/pci10de,5d@e/pci15b3,5@0/ibport@2,ffff,ipib:ibd1
/devices/pci@0,0/pci10de,5d@e/pci15b3,5@0:devctl
Workaround 2: If you reboot the system before updating the path_to_inst le and the /dev
directory, the system might hang. In such a case, perform the following steps:
1. Power o the system and remove the HCA from the bus.
2. Reboot the system without the HCA installed.
3. Once the system is back on, follow steps 2 and 3 in Workaround 1.
4. Power o the system.
5. Reinstall the HCA.
6. Reboot the system.
If the system reboots but the ibd interfaces do not automatically plumb, you might have to
manually rename the /etc/hostname.ib<?> les to reect the current device conguration.
The ZFS ARC Allocates Memory Inside the Kernel Cage
Preventing DR (15377173)
ZFS can potentially allocate kernel memory across all system boards on systems with very large
memory congurations. One free system board is required for dynamic memory
reconguration so that the memory from the board to be dynamically recongured can be
copied to the free board. The dynamic memory reconguration means that you cannot
dynamically recongure memory on systems with very large memory congurations that have
ZFS running. High-end Sun Fire servers from Oracle can relocate kernel pages so that this issue
is avoided. These servers must have kernel page relocation (KPR) enabled for domains with
more than 32 cores. No error message is displayed
Workaround: Reduce the amount of kernel memory that ZFS can allocate by setting the
zfs_arc_max parameter in the /etc/system le. The following example sets the maximum size
to 512 Mbytes.
set zfs:zfs_arc_max = 0x20000000
Certain USB 2.0 Controllers Are Disabled
Support for certain USB 2.0 controllers has been disabled because of incompatibilities between
these devices and the EHCI driver. The following message is displayed:
Due to recently discovered incompatibilities with this
USB controller, USB2.x transfer support has been disabled.
This device will continue to function as a USB1.x controller.
If you are interested in enabling USB2.x support please refer
Hardware-Related Issues and Bugs
Chapter 3 • Oracle Solaris Runtime Issues 41
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