Description of problem:

While running KernelTier1 test system panics.

Version-Release number of selected component (if applicable):
2.6.9-89.2.ELsmp

How reproducible:
This panic happens within several reboots.

Steps to Reproduce:
1. Reserve intel-d3c4702-01.rhts.bos.redhat.com in RHTS.
2. Install RHEL4u8 baseline, then install 2.6.9-89.2.ELsmp x86_64
3. Reboot several times
  
Actual results:
agpgart: Detected an Intel 945G Chipset.
agpgart: Maximum main memory to use for agp memory: 933M
Unable to handle kernel paging request at 00000150c90811c8 RIP: 
<ffffffff80125418>{__change_page_attr+123}
PML4 8063 PGD 0 
Oops: 0000 [1] SMP 
CPU 0 
Modules linked in:
Pid: 1, comm: swapper Not tainted 2.6.9-89.2.ELsmp
RIP: 0010:[<ffffffff80125418>] <ffffffff80125418>{__change_page_attr+123}
RSP: 0018:000001003e431d78  EFLAGS: 00010202
RAX: 00000050c90811c8 RBX: 924925a447200000 RCX: 8000000000000163
RDX: 00000150c90811c8 RSI: 000924924a447200 RDI: 0000010000000000
RBP: 000924924a447200 R08: 000ffffffffff000 R09: ffffffff803213e0
R10: ffffffff803213e0 R11: 0000ffff80411ea0 R12: 924925a4c7200000
R13: 924925a447200000 R14: 8000000000000173 R15: 8000000000000163
FS:  0000000000000000(0000) GS:ffffffff80504900(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 00000150c90811c8 CR3: 0000000000101000 CR4: 00000000000006e0
Process swapper (pid: 1, threadinfo 000001003e430000, task 000001003ed9b7f0)
Stack: 0000000000000000 924925a447200000 000924924a447200 924925a4c7200000 
       924924a447200000 0000000000000000 924925a4c7200000 ffffffff80125893 
       0000001000000001 924924a447200000 
Call Trace:<ffffffff80125893>{change_page_attr_addr+169} <ffffffff80242425>{map_page_into_agp+21} 
       <ffffffff8024355c>{agp_generic_alloc_page+29} <ffffffff8024132a>{agp_add_bridge+351} 
       <ffffffff801f9cb4>{pci_device_probe+110} <ffffffff80250615>{bus_match+57} 
       <ffffffff80250713>{driver_attach+68} <ffffffff80250a2f>{bus_add_driver+143} 
       <ffffffff801f9a24>{pci_register_driver+119} <ffffffff8052651c>{agp_intel_init+34} 
       <ffffffff8010c58a>{init+474} <ffffffff80110fd7>{child_rip+8} 
       <ffffffff8010c3b0>{init+0} <ffffffff80110fcf>{child_rip+0} 
       

Code: 48 8b 0a f6 c1 01 0f 84 b8 03 00 00 48 89 c8 49 89 d4 25 81 
RIP <ffffffff80125418>{__change_page_attr+123} RSP <000001003e431d78>
CR2: 00000150c90811c8
 <0>Kernel panic - not syncing: Oops

Expected results:

System should not panic on boot.
Additional info:
none