port-macppc/39411: ppc oea 750 sysmon_envsys panic

[jmcneill%invisible.ca@localhost]

>Number:         39411
>Category:       port-macppc
>Synopsis:       ppc oea 750 sysmon_envsys panic
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    port-macppc-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Aug 27 02:50:00 +0000 2008
>Originator:     Jared D. McNeill
>Release:        NetBSD 4.99.72
>Organization:
        
>Environment:
        
        
System: NetBSD pismo 4.99.72 NetBSD 4.99.72 (GENERIC) #0: Tue Aug 26 03:58:07 
EDT 2008 jmcneill@pismo:/usr/src/sys/arch/macppc/compile/GENERIC macppc
Architecture: powerpc
Machine: macppc
>Description:
        30 seconds after boot, cpu_tau_refresh causes a panic in sysmon_envsys
        on a PowerBook G3 (Firewire/Pismo) with the GENERIC kernel:

        panic: sme_events_worker: invalid units for ENVSYS_FMONSTCHANGED

>How-To-Repeat:
        Boot NetBSD -current on a PowerBook G3 (Firewire/Pismo).
>Fix:
        Workaround: comment out cpu_tau_setup/cpu_tau_refresh in
        src/sys/arch/powerpc/oea/cpu_subr.c

>Unformatted: