On 26.03.09 14:47:47, Murali Vijayasundaram wrote:
> Here is the output from the syslog:
>
> $ dmesg | grep perfmon
> Command line: ro root=/dev/VolGroup00/LogVol00 perfmon_debug
> Kernel command line: ro root=/dev/VolGroup00/LogVol00 perfmon_debug
> perfmon: debug output enabled
> perfmon: version 2.82
> perfmon: CPU hotplug support enabled
> perfmon: added sampling format default
> perfmon: sys_pfm_create_context.499: CPU0 [4205]: req=00007fffc1f53820 
> fmt=00000
> 0000040d107 fmt_arg=00007fffc1f537e0 size=64
> perfmon: found family=16 IBSCTL=0x0
> perfmon: pfm_amd64_nb_allocate.421: CPU7 [4207]: max_cpus=8
> perfmon: NorthBridge socket-level event access control: enabled
> perfmon: pfm_amd64_setup_eilvt.224: CPU7 [4207]: Failed to setup IBS LVT 
> offset,
>  IBSCTL = 0xffffffff

The access to the pci northbridge device fails that sets up the
interrupt. Please run the following:

 # dmesg | grep PCI:
 PCI: Using configuration type 1 for base access
 PCI: Using configuration type 1 for extended access
 PCI: Using ACPI for IRQ routing
 # cat /proc/bus/pci/00/18.3 | wc -c
 4096
 # ( perl -e 'sysseek(STDIN, 0x1cc, 0)'; hexdump -n 8 -e '2/4 "%08x " "\n"' ) < 
/proc/bus/pci/00/18.3
 00000100 00000000

-Robert

> perfmon: Failed to initialize extended interrupts for IBS
> perfmon: Unable to use IBS
> perfmon: pfm_amd64_check_registers.488: CPU7 [4207]: has_ibs=0
> perfmon: AMD64 PMU installed
> perfmon: pfm_pmu_request_module.436: CPU0 [4205]: mod=perfmon_amd64 ret=0
> perfmon: __pfm_create_context.180: CPU0 [4205]: alloc ctx 
> @0xffff88041a4b8000
> perfmon: pfm_pmu_acquire.547: CPU0 [4205]: pmu_acquired=0
> perfmon: pfm_arch_reserve_regs.595: CPU0 [4205]: nlost=0 info_flags=0x0
> perfmon: pfm_pmu_regdesc_init.176: CPU0 [4205]: intr_pmds=0xf cnt_pmds=0xf 
> rw_pm
> ds=0xf
> perfmon: pfm_pmu_regdesc_init_all.210: CPU0 [4205]: regs_all.pmcs=0xf

-- 
Advanced Micro Devices, Inc.
Operating System Research Center
email: robert.rich...@amd.com


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