System Might Panic With "Unowned Mutex" Message (Cr 6893274); Hotplugging Pcie Express Modules In Slots 2.0 Or 2.1 Might Not Work; A System With A Combo Gbe/8Gb Fc Express Module Hba Might Get A Bad Trap Panic (Cr 6942158) - Oracle Sun Fire X4800 Product Notes

Note -
Workaround 2
When you encounter a shortage of I/O interrupts on level 6, Oracle recommends that you assign
one of the drivers to interrupt level 5 or 4.
Interrupt level 5 is the first priority
■
Interrupt level 4 is next
■
See Allocating MSI Interrupt Space (Oracle Solaris OS Only) in the Sun Fire X4800 Server
Installation Guide for corrective actions.
System Might Panic With "unowned mutex" Message (CR
6893274)
Under rare conditions, the system might panic and display the message:
turnstile_block: unowned mutex
This is a known Solaris OS issue.
Hotplugging PCIe Express Modules in Slots 2.0 or 2.1 Might
Not Work (CR 6954869)
On an 8–socket system, hotplugging PCIe express modules in slots 2.0 or 2.1 might not work.
This is due to a possible shortage of hotplug interrupts on the system.
Workaround
Insert these modules before booting the system.
A System With a Combo GbE/8Gb FC Express Module HBA
Might Get a BAD TRAP Panic (CR 6942158)
Due to a known issue in the Solaris OS, a system with a Combo GbE/8Gb FC Express Module
HBA might panic during boot with a BAD TRAP message.
This patch requires Solaris 10 9/10 and cannot be used with Solaris 10 10/09.

System Might Panic With "unowned mutex" Message (CR 6893274)

Oracle Solaris 10 Operating System Issues 49