InfiniBand Driver Is Unable to Use MSI-X Interrupts
Issue:
The InfiniBand driver mlx4_core in SLES 10 SP3 cannot use MSI-X interrupts on systems with a high number of CPUs.
Affected Operating System:
SUSE Linux Enterprise Server (SLES) 10 SP3
Workaround:
Load the InfiniBand driver with MSI-X interrupts disabled, using one of the following two methods:
Issue the following command to load the driver with MSI-X interrupts disabled:
modprobe mlx4_core msi_x=0
Add the following line to the file /etc/modprobe.conf.local so that mlx4_core will never use MSI(X) when the driver is loaded:
options mlx4_core msi_x=0