SCHED_ULE trouble after ugrade 6.2-RELEASE -> 6.3-RELEASE

[sam]

hi all
my trouble description:

--------------part of dmesg-----------
CPU: Intel(R) Xeon(TM) CPU 2.40GHz (2392.26-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0xf27  Stepping = 7
  
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0x400<CNTX-ID>
  Logical CPUs per core: 2
---------------------------------------

1. using FreeBSD 6.2-RELEASE i386 SMP with SCHED_ULE
description of boot process: system is booting normal

2. using FreeBSD 6.3-RELEASE i386 SMP with SCHED_ULE
description of boot process: system is full stop on boot process
message:
-------------------------------------------------
Timecounters tick every 1.000 msec
Waiting 5 seconds for SCSI devices to settle
-------------------------------------------------

3. using FreeBSD 6.3-STABLE i386 SMP with SCHED_ULE
description of boot process: system is full stop on boot process
message:
-------------------------------------------------
Timecounters tick every 1.000 msec
Waiting 5 seconds for SCSI devices to settle
-------------------------------------------------

4. using FreeBSD 6.3-RELEASE i386 SMP with SCHED_4BSD
description of boot process: system is booting normal

please any solution

/Vladimir Ermakov