kern/93773: kldloaded hwpmc doesn't see all 4 cpu's...

[Larry Rosenman]

>Number:         93773
>Category:       kern
>Synopsis:       kldloaded hwpmc doesn't see all 4 cpu's...
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Feb 24 00:30:10 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Larry Rosenman
>Release:        FreeBSD 6.1-PRERELEASE amd64
>Organization:
LERCTR Consulting
>Environment:
System: FreeBSD thebighonker.lerctr.org 6.1-PRERELEASE FreeBSD 6.1-PRERELEASE #14: Thu Feb 23 16:01:40 CST 2006 root at thebighonker.lerctr.org:/usr/obj/usr/src/sys/THEBIGHONKER amd64


>Description:
Being the curious type, I tried to play with the hwpmc stuff.  When I issue
a pmccontrol -l, it complains about cpu 1 device not configured.  

I had kldloaded hwpmc.


$ sysctl hw
hw.machine: amd64
hw.model: Intel(R) Xeon(TM) CPU 3.00GHz
hw.ncpu: 4
hw.byteorder: 1234
hw.physmem: 4286386176
hw.usermem: 4071378944
hw.pagesize: 4096
hw.floatingpoint: 1
hw.machine_arch: amd64
hw.realmem: 5368709120
hw.ata.wc: 1
hw.ata.atapi_dma: 1
hw.ata.ata_dma: 1
hw.pci.do_power_resume: 1
hw.pci.do_power_nodriver: 0
hw.pci.enable_io_modes: 1
hw.pci.host_mem_start: 2147483648
hw.intr_storm_threshold: 500
hw.availpages: 1046481
hw.bus.devctl_disable: 0
hw.busdma.total_bpages: 34
hw.busdma.zone0.total_bpages: 1
hw.busdma.zone0.free_bpages: 1
hw.busdma.zone0.reserved_bpages: 0
hw.busdma.zone0.active_bpages: 0
hw.busdma.zone0.total_bounced: 0
hw.busdma.zone0.total_deferred: 0
hw.busdma.zone0.lowaddr: 0xfffffffffffffff
hw.busdma.zone0.alignment: 128
hw.busdma.zone0.boundary: 0
hw.busdma.zone1.total_bpages: 1
hw.busdma.zone1.free_bpages: 1
hw.busdma.zone1.reserved_bpages: 0
hw.busdma.zone1.active_bpages: 0
hw.busdma.zone1.total_bounced: 0
hw.busdma.zone1.total_deferred: 0
hw.busdma.zone1.lowaddr: 0xffffffff
hw.busdma.zone1.alignment: 4096
hw.busdma.zone1.boundary: 0
hw.busdma.zone2.total_bpages: 32
hw.busdma.zone2.free_bpages: 32
hw.busdma.zone2.reserved_bpages: 0
hw.busdma.zone2.active_bpages: 0
hw.busdma.zone2.total_bounced: 0
hw.busdma.zone2.total_deferred: 0
hw.busdma.zone2.lowaddr: 0xffffffff
hw.busdma.zone2.alignment: 2
hw.busdma.zone2.boundary: 65536
hw.clockrate: 2992
hw.instruction_sse: 1
hw.psm.tap_timeout: 125000
hw.psm.tap_threshold: 25
hw.kbd.keymap_restrict_change: 0
hw.syscons.kbd_debug: 1
hw.syscons.kbd_reboot: 1
hw.syscons.bell: 1
hw.syscons.saver.keybonly: 1
hw.syscons.sc_no_suspend_vtswitch: 0
hw.acpi.supported_sleep_state: S1 S4 S5
hw.acpi.power_button_state: S5
hw.acpi.sleep_button_state: S1
hw.acpi.lid_switch_state: NONE
hw.acpi.standby_state: S1
hw.acpi.suspend_state: S3
hw.acpi.sleep_delay: 1
hw.acpi.s4bios: 0
hw.acpi.verbose: 0
hw.acpi.cpu.cx_supported: C1/0
hw.acpi.cpu.cx_lowest: C1
hw.acpi.cpu.cx_usage: 100.00%
hw.dri.0.name: mach64 0x26
hw.dri.0.vm: 
slot	 offset	      size type flags	 address mtrr

hw.dri.0.clients: 
a dev	pid    uid	magic	  ioctls

hw.dri.0.debug: 0
$ kldstat

Id Refs Address            Size     Name
 1    3 0xffffffff80100000 619198   kernel
 2    1 0xffffffff8071a000 1c310    geom_mirror.ko
 3    1 0xffffffffb5f97000 9329     hwpmc.ko
$ 
>How-To-Repeat:
$ pmccontrol -l
#CPU 0:
#N  NAME             CLASS  STATE    ROW-DISP
 0  TSC              TSC    ENABLED  FREE
 1  BPU_COUNTER0     P4     ENABLED  FREE
 2  BPU_COUNTER1     P4     ENABLED  FREE
 3  BPU_COUNTER2     P4     ENABLED  FREE
 4  BPU_COUNTER3     P4     ENABLED  FREE
 5  MS_COUNTER0      P4     ENABLED  FREE
 6  MS_COUNTER1      P4     ENABLED  FREE
 7  MS_COUNTER2      P4     ENABLED  FREE
 8  MS_COUNTER3      P4     ENABLED  FREE
 9  FLAME_COUNTER0   P4     ENABLED  FREE
 10 FLAME_COUNTER1   P4     ENABLED  FREE
 11 FLAME_COUNTER2   P4     ENABLED  FREE
 12 FLAME_COUNTER3   P4     ENABLED  FREE
 13 IQ_COUNTER0      P4     ENABLED  FREE
 14 IQ_COUNTER1      P4     ENABLED  FREE
 15 IQ_COUNTER2      P4     ENABLED  FREE
 16 IQ_COUNTER3      P4     ENABLED  FREE
 17 IQ_COUNTER4      P4     ENABLED  FREE
 18 IQ_COUNTER5      P4     ENABLED  FREE
pmccontrol: Unable to get PMC status for CPU 1: Device not configured
$

I can provide shell and priv'd access if y'all want.....
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted: