Solaris MSI Interrupts Are Depleted (CR 6669984 )
rem_drv intel_nhmex
add_drv -i '"pci8086,3438"' intel_nhmex
3. Reboot your server.
Solaris MSI Interrupts Are Depleted (CR 6669984 )
The Solaris OS might run out of MSI interrupts on 8-socket systems.
The Solaris OS is designed to allocate 32 interrupt vectors at priority level six. Also, each
network device is assigned two interrupts. If the system contains more than 16 network devices,
it will exhaust the supply of interrupts on level six, leaving some devices non-functional.
When this occurs, error messages similar to the following appears:
■
On the console:
Feb 25 15:45:04 mpk12-3214-189-156 pcplusmp: WARNING: No interrupt vector:
pciex8086,10f7 instance 1
Feb 25 15:45:04 mpk12-3214-189-156 pcplusmp: WARNING: Sharing vectors:
pciex8086,10f7 instance 1 and SCI
Feb 25 15:45:06 mpk12-3214-189-156 pcplusmp: WARNING: No interrupt vector:
pciex8086,10f7 instance 5
Feb 25 15:45:06 mpk12-3214-189-156 pcplusmp: WARNING: Sharing vectors:
pciex8086,10f7 instance 1 and pciex8086,10f7 instance 5
■
In /var/adm/messages:
Feb 25 15:44:53 mpk12-3214-189-156 ixgbe: [ID 611667 kern.info]
NOTICE: ixgbe7: Insufficient interrupt handles available: 1
Feb 25 15:44:53 mpk12-3214-189-156 ixgbe: [ID 611667 kern.info]
NOTICE: ixgbe7: Allocate MSI-X failed, trying MSI interrupts...
Feb 25 15:44:53 mpk12-3214-189-156 ixgbe: [ID 611667 kern.info]
NOTICE: ixgbe7: MSI-X not used, force rx and tx queue number to 1
Note - If you have not installed patch 142901–09 or later, the Solaris OS is currently limited to
allocating 31 vectors at priority level six, meaning that it can only support 15 network devices
on level six.
Workaround 1
For Solaris 10 9/10, install patch 146025–03 or higher.
This fixes the problem in most cases.
48 Sun Fire X4800 Server Product Notes • July 2017
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