misc/164565: kernel crash when kldunload'ing padlock



>Number:         164565
>Category:       misc
>Synopsis:       kernel crash when kldunload'ing padlock
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Jan 28 10:00:20 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator:     Stefan Kr柹er
>Release:        FreeBSD 9.0-REL
>Organization:
>Environment:
FreeBSD 9.0-RELEASE #0: Thu Jan 26 20:23:47 CET 2012
    root@vianano:/usr/obj/usr/src/sys/MYKERNEL amd64
>Description:
Unloading the padlock kernel module makes the kernel crash.

dmesg:
CPU: VIA Nano X2 L4050 @ 1.4 GHz (1400.09-MHz K8-class CPU)
  Origin = "CentaurHauls"  Id = 0x6fc  Family = 6  Model = f  Stepping = 12
  Features=0xbfc9fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,CLFLUSH,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0x8863a9<SSE3,MON,VMX,EST,TM2,SSSE3,CX16,xTPR,SSE4.1,POPCNT>
  AMD Features=0x20100800<SYSCALL,NX,LM>
  AMD Features2=0x1<LAHF>
  VIA Padlock Features=0x1ec33dcc<RNG,AES,AES-CTR,SHA1,SHA256,RSA>
  TSC: P-state invariant

>How-To-Repeat:
kldunload padlock
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted:
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