Q-Logic IB6054601-00 D Manuel D’Utilisation

C – Troubleshooting
Kernel and Initialization Issues

C-10

IB6054601-00 D

Q

A zero count in all CPU columns means that no interrupts have been delivered to 
the processor.

Possible causes are:

■

Booting the linux kernel with ACPI (Advanced Configuration and Power Interface) 
disabled on the boot command line, or in the BIOS configuration

■

Other infinipath initialization failures 

To check if the kernel was booted with the 

"noacpi"

 or 

"pci=noacpi"

 options, use 

this command:

$ grep -i acpi /proc/cmdline

If output is displayed, fix your kernel boot command line so that ACPI is enabled. 
This can be set in various ways, depending on your distribution. If no output is 
displayed, check to be sure that ACPI is enabled in your BIOS settings.

To track down other initialization failures, see 

. 

The program 

ipath_checkout

 can also help flag these kinds of problems. See 

 for more information.

When the ib_ipath driver fails to load for any reason, all of the OpenFabrics 
drivers/modules loaded by /etc/init.d/infinipath fail with "Unknown symbol" errors:

ib_mad: Unknown symbol ib_unregister_client

ib_mad: Unknown symbol ib_query_ah

.

ib_sa: Unknown symbol ib_unregister_client

ib_sa: Unknown symbol ib_unpack

.

ib_ipath: Unknown symbol ib_modify_qp_is_ok

ib_ipath: Unknown symbol ib_unregister_device

.

ipath_ether: Unknown symbol ipath_layer_get_mac

ipath_ether: Unknown symbol ipath_layer_get_lid

.

Not all the error messages are shown here.