[SunHELP] module ppm not loading after Solaris 9 4/03 upgrade

[sunhelp at sunhelp.org]

I'm not sure what module ppm is for.  I'm getting:
Aug 14 16:11:03 apps2 krtld: [ID 819705 kern.notice]
/platform/sun4u/kernel/drv/sparcv9/ppm: undefined symbol
Aug 14 16:11:03 apps2 krtld: [ID 826211 kern.notice]  'pm_is_cfb'
Aug 14 16:11:03 apps2 krtld: [ID 819705 kern.notice]
/platform/sun4u/kernel/drv/sparcv9/ppm: undefined symbol
Aug 14 16:11:03 apps2 krtld: [ID 826211 kern.notice]  'pm_noinvol_detached'
Aug 14 16:11:03 apps2 krtld: [ID 472681 kern.notice] WARNING: mod_load:
cannot load module 'ppm'

Thanks for any information relative to this module.