During network OS installation, some x86 systems with large configurations that include a lot of network cards might generate FMA warnings about running out of MSI-X interrupt vectors. These messages are harmless and are not seen after the installation finishes and the system reboots to the operating system.
The FMA warnings and description appear as:
fault.io.nic.config The network device failed to configure a feature. A(n) unsupported error has been detected during driver's attach context causing a(n) config service impact while involving the device's rx_ring subsystem.
Workaround
To fix this issue, edit the GRUB entry to pass the boot parameter: ddi-msix-alloc-limit=2.
$multiboot /ROOT/solaris/@/$kern $kern -B console=ttya -B $zfs_bootfs -B
ddi-msix-alloc-limit=2
For example:
$multiboot /ROOT/solaris/@/$kern $kern -B console=ttya -B $zfs_bootfs -B ddi-msix-alloc-limit=2