port-amd64/37748: panic: fp_save ipi didn't (on resume from S3 sleep)

[jmcneill%invisible.ca@localhost]

>Number:         37748
>Category:       port-amd64
>Synopsis:       panic: fp_save ipi didn't (on resume from S3 sleep)
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    port-amd64-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Jan 13 00:15:00 +0000 2008
>Originator:     Jared D. McNeill
>Release:        NetBSD 4.99.48
>Organization:
        
>Environment:
        
        
System: NetBSD black.invisible.ca 4.99.48 NetBSD 4.99.48 (GENERIC) #71: Tue Jan 
8 19:29:09 EST 2008 
jmcneill%black.invisible.ca@localhost:/export/home/jmcneill/branches/HEAD/src/sys/arch/amd64/compile/GENERIC
 amd64
Architecture: x86_64
Machine: amd64
>Description:
        On resume from S3 sleep, I received the following:

                panic: fp_save ipi didn't
                [...]
                db{0}> tr
                breakpoint[...]
                fpusave_lwp[...]
                fpudna[...]

        CPU1 was running the pckbc resume handler at the time, in a 
        bus_space_* call.
>How-To-Repeat:
        Unknown, only seen once.
>Fix:
        

>Unformatted: