Known Issues; Very Heavy Traffic Between Solaris 10 8/07 And Red Hat Enterprise Linux (Rhel 4.6) Clients (Cr 6685402) - Sun Microsystems Dual Release Notes

Known Issues

This section describes the known issues and workarounds at the time of this release.
Very Heavy Traffic Between Solaris 10 8/07 and
Red Hat Enterprise Linux (RHEL 4.6) Clients (CR
6685402)
With heavy traffic from Sun Blade X6250 Server Modules with RHEL4.6 (64-bit) to
Sun Blade X6250 Server Modules with Solaris 10 8/07 (64-bit), the blade with Solaris
10 OS could experience high CPU usage rendering the blade unusable.
Workaround:
1. Increase the number of CPUs or the speed of the CPUs.
2. Add tunables to /etc/system file.
The following is an example:
Heavy Traffic Tunables for the /etc/system File
CODE EXAMPLE 1
set ddi_msix_alloc_limit=8
set pcplusmp:apic_multi_msi_max=8
set pcplusmp:apic_msix_max=8
set pcplusmp:apic_intr_policy=1
set nxge:nxge_msi_enable=2
set ip_squeue_soft_ring=1
set ip:ip_soft_rings_cnt=8
set pcplusmp:apic_enable_dynamic_migration=0
set pcplusmp:apic_intr_policy=1
The values may be changed according to your blade's configuration.
Sun Dual 10GbE Fabric Expansion Module Release Notes 3