3.2.35 problem with M5A97 PRO ram: bad_page free_pages_prepare mem_init

lkml
2013-01-08T00:14:55Z

linux kernel
3.2.0-0.bpo.4-rt-amd64 #1 SMP PREEMPT RT Debian 3.2.35-2~bpo60+1 x86_64
GNU/Linux
running on mainboard M5A97 PRO (Version: "0813" Date: "10/24/2011")
with 16 GB RAM (ECC not used)
with AMD Bulldozer CPU,
reports problems same on each boot:

[ 0.000000] Pid: 0, comm: swapper Not tainted 3.2.0-0.bpo.4-rt-amd64
#1 Debian 3.2.35-2~bpo60+1
[ 0.000000] Call Trace:
[ 0.000000] [<ffffffff810cb43e>] ? bad_page+0xe8/0xfa
[ 0.000000] [<ffffffff810cb83f>] ? free_pages_prepare+0x9a/0xd3
[ 0.000000] [<ffffffff810cc200>] ? __free_pages_ok+0x1b/0x102
[ 0.000000] [<ffffffff8172185e>] ? free_all_memory_core_early+0xe1/0x144
[ 0.000000] [<ffffffff81716664>] ? numa_free_all_bootmem+0x71/0x7a
[ 0.000000] [<ffffffff81385ae2>] ? bad_to_user+0x65c/0x65c
[ 0.000000] [<ffffffff81714d2d>] ? mem_init+0x19/0xe4
[ 0.000000] [<ffffffff81701a8e>] ? start_kernel+0x1c2/0x3c2
[ 0.000000] [<ffffffff817013c8>] ? x86_64_start_kernel+0x102/0x10f

despite this errors machine runs ok and rather stable.

Is this problem already known?
What can be done to debug it so we can fix it?

cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 21
model : 1
model name : AMD FX(tm)-8120 Eight-Core Processor
stepping : 2
microcode : 0x6000613
cpu MHz : 1400.000
cache size : 2048 KB
physical id : 0
siblings : 8
core id : 0
cpu cores : 4
apicid : 16
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt
pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid
aperfmperf pni pclmulqdq monitor ssse3 cx16 sse4_1 sse4_2 popcnt aes
xsave avx lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a
misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 nodeid_msr
topoext perfctr_core arat cpb hw_pstate npt lbrv svm_lock nrip_save
tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold
bogomips : 6221.04
TLB size : 1536 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate [9]

wider log:

[ 0.000000] Kernel command line:
BOOT_IMAGE=/vmlinuz-3.2.0-0.bpo.4-rt-amd64 root=/dev/mapper/md0_crypt ro
quiet
[ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.000000] xsave/xrstor: enabled xstate_bv 0x7, cntxt size 0x340
[ 0.000000] Checking aperture...
[ 0.000000] No AGP bridge found
[ 0.000000] Node 0: aperture @ f8000000 size 64 MB
[ 0.000000] Modules linked in:
[ 0.000000] Pid: 0, comm: swapper Not tainted 3.2.0-0.bpo.4-rt-amd64
#1 Debian 3.2.35-2~bpo60+1
[ 0.000000] Call Trace:
[ 0.000000] [<ffffffff810cb43e>] ? bad_page+0xe8/0xfa
[ 0.000000] [<ffffffff810cb83f>] ? free_pages_prepare+0x9a/0xd3
[ 0.000000] [<ffffffff810cc200>] ? __free_pages_ok+0x1b/0x102
[ 0.000000] [<ffffffff8172185e>] ? free_all_memory_core_early+0xe1/0x144
[ 0.000000] [<ffffffff81716664>] ? numa_free_all_bootmem+0x71/0x7a
[ 0.000000] [<ffffffff81385ae2>] ? bad_to_user+0x65c/0x65c
[ 0.000000] [<ffffffff81714d2d>] ? mem_init+0x19/0xe4
[ 0.000000] [<ffffffff81701a8e>] ? start_kernel+0x1c2/0x3c2
[ 0.000000] [<ffffffff817013c8>] ? x86_64_start_kernel+0x102/0x10f
[ 0.000000] Disabling lock debugging due to kernel taint
[ 0.000000] Modules linked in:
[ 0.000000] Pid: 0, comm: swapper Tainted: G B
3.2.0-0.bpo.4-rt-amd64 #1 Debian 3.2.35-2~bpo60+1
[ 0.000000] Call Trace:
[ 0.000000] [<ffffffff810cb43e>] ? bad_page+0xe8/0xfa
[ 0.000000] [<ffffffff810cb83f>] ? free_pages_prepare+0x9a/0xd3
[ 0.000000] [<ffffffff810cc200>] ? __free_pages_ok+0x1b/0x102
[ 0.000000] [<ffffffff8172185e>] ? free_all_memory_core_early+0xe1/0x144
[ 0.000000] [<ffffffff81716664>] ? numa_free_all_bootmem+0x71/0x7a
[ 0.000000] [<ffffffff81385ae2>] ? bad_to_user+0x65c/0x65c
[ 0.000000] [<ffffffff81714d2d>] ? mem_init+0x19/0xe4
[ 0.000000] [<ffffffff81701a8e>] ? start_kernel+0x1c2/0x3c2
[ 0.000000] [<ffffffff817013c8>] ? x86_64_start_kernel+0x102/0x10f
[ 0.000000] Modules linked in:
[ 0.000000] Pid: 0, comm: swapper Tainted: G B
3.2.0-0.bpo.4-rt-amd64 #1 Debian 3.2.35-2~bpo60+1
[ 0.000000] Call Trace:
[ 0.000000] [<ffffffff810cb43e>] ? bad_page+0xe8/0xfa
[ 0.000000] [<ffffffff810cb83f>] ? free_pages_prepare+0x9a/0xd3
[ 0.000000] [<ffffffff810cc200>] ? __free_pages_ok+0x1b/0x102
[ 0.000000] [<ffffffff8172185e>] ? free_all_memory_core_early+0xe1/0x144
[ 0.000000] [<ffffffff81716664>] ? numa_free_all_bootmem+0x71/0x7a
[ 0.000000] [<ffffffff81385ae2>] ? bad_to_user+0x65c/0x65c
[ 0.000000] [<ffffffff81714d2d>] ? mem_init+0x19/0xe4
[ 0.000000] [<ffffffff81701a8e>] ? start_kernel+0x1c2/0x3c2
[ 0.000000] [<ffffffff817013c8>] ? x86_64_start_kernel+0x102/0x10f

(repeats around 20 times)

[ 0.000000] Memory: 16402260k/17809408k available (3606k kernel code,
1085996k absent, 319616k reserved, 3163k data, 928k init)
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] NR_IRQS:33024 nr_irqs:1288 16
[ 0.000000] Extended CMOS year: 2000
[ 0.000000] Console: colour VGA+ 80x25
[ 0.000000] console [tty0] enabled

form hwinfo

system.board.product = 'M5A97 PRO'
str1: "ASUSTeK COMPUTER INC."
str2: "M5A97 PRO"
str3: "Rev 1.xx"

01: None 00.0: 10105 BIOS
[Created at bios.190]
Unique ID: ........................ removed
Hardware Class: bios
BIOS Keyboard LED Status:
Scroll Lock: off
Num Lock: on
Caps Lock: off
Base Memory: 635 kB
PnP BIOS: @@@0000
SMBIOS Version: 2.7
BIOS Info: #0
Vendor: "American Megatrends Inc."
Version: "0813"
Date: "10/24/2011"
Start Address: 0xf0000
ROM Size: 4096 kB
Features: 0x0d03000000053f8b9880