Sudden kernel panic epidemic on 09 pro

IainH · Jul 1, 2011

Recently Ive started to get a rather worrying amount of kernel panics. I figure one or two a year isnt bad...but one every few weeks (and now days) is just plain scary.

Ive included a few of the crash logs below (purged the bottom crap that I believe to be pointless). Id love it if someone who understands these could take a look and tell me whats probably wrong?

From my attempted understanding of them something has gone bad in the RAM. For some reason I thought removing and reseating all the sticks in different slots (6 of them) might help. Not sure why. Another panic just happened with an error log that looked the same. RAM is installed as per manual recommendation (if that helps?)

During these ive either been playing WoW, web browsing with random crap open or watching tv via an elgato eyetv.

Onto the logs!

Code:

Interval Since Last Panic Report:  112110 sec
Panics Since Last Report:          1

Mon Jun 27 23:17:15 2011
Machine-check capabilities (cpu 0) 0x0000000000001c09:
 family: 6 model: 26 stepping: 5 microcode: 17
 Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz
 9 error-reporting banks
 threshold-based error status present
 extended corrected memory error handling present
Machine-check status 0x0000000000000004:
 machine-check in progress
MCA error-reporting registers:
 IA32_MC0_STATUS(0x401): 0x0000000000000800 invalid
 IA32_MC1_STATUS(0x405): 0x0000000000000800 invalid
 IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
 IA32_MC3_STATUS(0x40d): 0x0000000000000000 invalid
 IA32_MC4_STATUS(0x411): 0x0000000000000000 invalid
 IA32_MC5_STATUS(0x415): 0x0000000000000000 invalid
 IA32_MC6_STATUS(0x419): 0x0000000000000000 invalid
 IA32_MC7_STATUS(0x41d): 0x0000000000000000 invalid
 Package 0 logged:
 IA32_MC8_STATUS(0x421): 0x0000000000000000 invalid
 Package 1 logged:
 IA32_MC8_STATUS(0x421): 0xbe0000000001009f valid
  Channel number:         15 (unknown)
  Memory Operation:       read
  Machine-specific error: Read ECC
  COR_ERR_CNT:            0
  Status bits:
   Processor context corrupt
   ADDR register valid
   MISC register valid
   Error enabled
   Uncorrected error
 IA32_MC8_ADDR(0x422): 0x000000000a79eac0
 IA32_MC8_MISC(0x423): 0x5494762900081280
  DIMM:     0
  Channel:  2
  Syndrome: 0x54947629
panic(cpu 13 caller 0xffffff80002d0238): Machine Check thread:0xffffff801cd31588 at 0xffffff7f811dd58a, registers:
CR0: 0x000000008001003b, CR2: 0x00007fff5fbff298, CR3: 0x0000000000100000, CR4: 0x0000000000000660
RAX: 0x0000000000000001, RBX: 0xffffff801cc9f000, RCX: 0x0000000000000001, RDX: 0xffffff7f811ef4c0
RSP: 0xffffff80faf2bd60, RBP: 0xffffff80faf2bda0, RSI: 0xffffff801cc9f000, RDI: 0xffffff801cbbce00
R8:  0x0000000000000000, R9:  0x0000000000480000, R10: 0x0000000000080000, R11: 0xffffff80002d648b
R12: 0xffffff7f811efc68, R13: 0xffffff801cbbcac0, R14: 0x0000000000000001, R15: 0xffffff7f811edd18
RFL: 0x0000000000000082, RIP: 0xffffff7f811dd58a, CS:  0x0000000000000008, SS:  0x0000000000000010
Error code: 0x0000000000000000

Backtrace (CPU 13), Frame : Return Address
0xffffff80fb287eb0 : 0xffffff8000204d15 
0xffffff80fb287fb0 : 0xffffff80002d0238 
0xffffff80fb2880a0 : 0xffffff80002e48ff 
0xffffff80faf2bda0 : 0xffffff7f811d5567 
0xffffff80faf2be80 : 0xffffff7f811d68a7 
0xffffff80faf2bf20 : 0xffffff800022e409 
0xffffff80faf2bf40 : 0xffffff80002083a4 
0xffffff80faf2bf80 : 0xffffff800027f532 
0xffffff80faf2bfa0 : 0xffffff80002c8527 
      Kernel Extensions in backtrace (with dependencies):
         com.apple.driver.AppleIntelCPUPowerManagement(142.6.0)@0xffffff7f811d4000->0xffffff7f811f7fff

BSD process name corresponding to current thread: kernel_task

Mac OS version:
10K540

Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun  7 16:32:41 PDT 2011; root:xnu-1504.15.3~1/RELEASE_X86_64
System model name: MacPro4,1 (Mac-F221BEC8)

Code:

Interval Since Last Panic Report:  6505 sec
Panics Since Last Report:          1

Tue Jun 28 20:03:57 2011
Machine-check capabilities (cpu 8) 0x0000000000001c09:
 family: 6 model: 26 stepping: 5 microcode: 17
 Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz
 9 error-reporting banks
 threshold-based error status present
 extended corrected memory error handling present
Machine-check status 0x0000000000000004:
 machine-check in progress
MCA error-reporting registers:
 IA32_MC0_STATUS(0x401): 0x0000000000000800 invalid
 IA32_MC1_STATUS(0x405): 0x0000000000000800 invalid
 IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
 IA32_MC3_STATUS(0x40d): 0x0000000000000000 invalid
 IA32_MC4_STATUS(0x411): 0x0000000000000000 invalid
 IA32_MC5_STATUS(0x415): 0x0000000000000000 invalid
 IA32_MC6_STATUS(0x419): 0x0000000000000000 invalid
 IA32_MC7_STATUS(0x41d): 0x0000000000000000 invalid
 Package 1 logged:
 IA32_MC8_STATUS(0x421): 0xbe0000000001009f valid
  Channel number:         15 (unknown)
  Memory Operation:       read
  Machine-specific error: Read ECC
  COR_ERR_CNT:            0
  Status bits:
   Processor context corrupt
   ADDR register valid
   MISC register valid
   Error enabled
   Uncorrected error
 IA32_MC8_ADDR(0x422): 0x000000000a79e7c0
 IA32_MC8_MISC(0x423): 0x72a3453200085840
  DIMM:     0
  Channel:  2
  Syndrome: 0x72a34532
 Package 0 logged:
 IA32_MC8_STATUS(0x421): 0x0000000000000000 invalid
panic(cpu 8 caller 0xffffff80002d0238): Machine Check thread:0xffffff8021c54260 at 0xffffff80002c5530, registers:
CR0: 0x0000000080010033, CR2: 0x0000000113da5000, CR3: 0x00000001da64a000, CR4: 0x0000000000000660
RAX: 0xffffff8021c54260, RBX: 0xffffff80266fff80, RCX: 0x0000000002000000, RDX: 0xffffff80266fff88
RSP: 0xffffff8102093e10, RBP: 0xffffff8102093e10, RSI: 0x000000000001dc03, RDI: 0xffffff80266fff88
R8:  0x0000000000010000, R9:  0x0000000000000000, R10: 0x0000000000000000, R11: 0xffffff7f811d5bf7
R12: 0x0000000000000000, R13: 0xffffff801ddb9f00, R14: 0xffffff8102093e68, R15: 0xffffff8000281be1
RFL: 0x0000000000000246, RIP: 0xffffff80002c5530, CS:  0x0000000000000008, SS:  0x0000000000000010
Error code: 0x0000000000000000

Backtrace (CPU 8), Frame : Return Address
0xffffff80fb0eceb0 : 0xffffff8000204d15 
0xffffff80fb0ecfb0 : 0xffffff80002d0238 
0xffffff80fb0ed0a0 : 0xffffff80002e48ff 
0xffffff8102093e10 : 0xffffff800026fb8d 
0xffffff8102093e50 : 0xffffff8000279d6f 
0xffffff8102093e90 : 0xffffff8000281ba3 
0xffffff8102093ed0 : 0xffffff80002c2daa 
0xffffff8102093fa0 : 0xffffff80002e4536 

BSD process name corresponding to current thread: EyeTV

Mac OS version:
10K540

Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun  7 16:32:41 PDT 2011; root:xnu-1504.15.3~1/RELEASE_X86_64
System model name: MacPro4,1 (Mac-F221BEC8)

Code:

Interval Since Last Panic Report:  15513 sec
Panics Since Last Report:          1

Wed Jun 29 13:06:11 2011
Machine-check capabilities (cpu 9) 0x0000000000001c09:
 family: 6 model: 26 stepping: 5 microcode: 17
 Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz
 9 error-reporting banks
 threshold-based error status present
 extended corrected memory error handling present
Machine-check status 0x0000000000000004:
 machine-check in progress
MCA error-reporting registers:
 IA32_MC0_STATUS(0x401): 0x0000000000000800 invalid
 IA32_MC1_STATUS(0x405): 0x0000000000000800 invalid
 IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
 IA32_MC3_STATUS(0x40d): 0x0000000000000000 invalid
 IA32_MC4_STATUS(0x411): 0x0000000000000000 invalid
 IA32_MC5_STATUS(0x415): 0x0000000000000000 invalid
 IA32_MC6_STATUS(0x419): 0x0000000000000000 invalid
 IA32_MC7_STATUS(0x41d): 0x0000000000000000 invalid
 Package 1 logged:
 IA32_MC8_STATUS(0x421): 0xbe0000000001009f valid
  Channel number:         15 (unknown)
  Memory Operation:       read
  Machine-specific error: Read ECC
  COR_ERR_CNT:            0
  Status bits:
   Processor context corrupt
   ADDR register valid
   MISC register valid
   Error enabled
   Uncorrected error
 IA32_MC8_ADDR(0x422): 0x000000000a79e7c0
 IA32_MC8_MISC(0x423): 0xe62e671200080280
  DIMM:     0
  Channel:  2
  Syndrome: 0xe62e6712
 Package 0 logged:
 IA32_MC8_STATUS(0x421): 0x0000000000000000 invalid
panic(cpu 9 caller 0xffffff80002d0238): Machine Check thread:0xffffff801cd32ba8 at 0xffffff7f811dd58a, registers:
CR0: 0x000000008001003b, CR2: 0x000000010046a000, CR3: 0x0000000000100000, CR4: 0x0000000000000660
RAX: 0x0000000000000001, RBX: 0xffffff801cc9f000, RCX: 0x0000000000000001, RDX: 0xffffff7f811ef4c0
RSP: 0xffffff8104c33d60, RBP: 0xffffff8104c33da0, RSI: 0xffffff801cc9f000, RDI: 0xffffff801cbbcd00
R8:  0x0000000000000000, R9:  0x0000000000480000, R10: 0x0000000000000000, R11: 0xffffff80002d648b
R12: 0xffffff7f811efc68, R13: 0xffffff801cbbc940, R14: 0x0000000000000001, R15: 0xffffff7f811edd18
RFL: 0x0000000000000082, RIP: 0xffffff7f811dd58a, CS:  0x0000000000000008, SS:  0x0000000000000010
Error code: 0x0000000000000000

Backtrace (CPU 9), Frame : Return Address
0xffffff80fb22beb0 : 0xffffff8000204d15 
0xffffff80fb22bfb0 : 0xffffff80002d0238 
0xffffff80fb22c0a0 : 0xffffff80002e48ff 
0xffffff8104c33da0 : 0xffffff7f811d5567 
0xffffff8104c33e80 : 0xffffff7f811d68a7 
0xffffff8104c33f20 : 0xffffff800022e409 
0xffffff8104c33f40 : 0xffffff80002083a4 
0xffffff8104c33f80 : 0xffffff800027f532 
0xffffff8104c33fa0 : 0xffffff80002c8527 
      Kernel Extensions in backtrace (with dependencies):
         com.apple.driver.AppleIntelCPUPowerManagement(142.6.0)@0xffffff7f811d4000->0xffffff7f811f7fff

BSD process name corresponding to current thread: kernel_task

Mac OS version:
10K540

Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun  7 16:32:41 PDT 2011; root:xnu-1504.15.3~1/RELEASE_X86_64
System model name: MacPro4,1 (Mac-F221BEC8)

Code:

Interval Since Last Panic Report:  72161 sec
Panics Since Last Report:          2

Fri Jul  1 21:42:06 2011
Machine-check capabilities (cpu 0) 0x0000000000001c09:
 family: 6 model: 26 stepping: 5 microcode: 17
 Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz
 9 error-reporting banks
 threshold-based error status present
 extended corrected memory error handling present
Machine-check status 0x0000000000000004:
 machine-check in progress
MCA error-reporting registers:
 IA32_MC0_STATUS(0x401): 0x0000000000000800 invalid
 IA32_MC1_STATUS(0x405): 0x0000000000000800 invalid
 IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
 IA32_MC3_STATUS(0x40d): 0x0000000000000000 invalid
 IA32_MC4_STATUS(0x411): 0x0000000000000000 invalid
 IA32_MC5_STATUS(0x415): 0x0000000000000000 invalid
 IA32_MC6_STATUS(0x419): 0x0000000000000000 invalid
 IA32_MC7_STATUS(0x41d): 0x0000000000000000 invalid
 Package 0 logged:
 IA32_MC8_STATUS(0x421): 0xbe0000000001009f valid
  Channel number:         15 (unknown)
  Memory Operation:       read
  Machine-specific error: Read ECC
  COR_ERR_CNT:            0
  Status bits:
   Processor context corrupt
   ADDR register valid
   MISC register valid
   Error enabled
   Uncorrected error
 IA32_MC8_ADDR(0x422): 0x000000000a79eb80
 IA32_MC8_MISC(0x423): 0xff44967100085840
  DIMM:     0
  Channel:  2
  Syndrome: 0xff449671
 Package 1 logged:
 IA32_MC8_STATUS(0x421): 0x0000000000000000 invalid
panic(cpu 0 caller 0xffffff80002d0238): Machine Check thread:0xffffff8020871588 at 0x000000010004e3ed, registers:
CR0: 0x0000000080010033, CR2: 0x0000000103f7e868, CR3: 0x0000000114fca000, CR4: 0x0000000000000660
RAX: 0x0000000101275f58, RBX: 0x0000000100086e20, RCX: 0x000000010028084e, RDX: 0x000000000002d410
RSP: 0x0000000100280718, RBP: 0x00000001002809d0, RSI: 0x000000000000000c, RDI: 0x0000000000000002
R8:  0x000000009ef5d718, R9:  0x000000000000fffc, R10: 0x00000000ffffffff, R11: 0x0000000000000002
R12: 0x000000010007a100, R13: 0x0000000000000000, R14: 0x000000000000bb3d, R15: 0x00000000000005a0
RFL: 0x0000000000000202, RIP: 0x000000010004e3ed, CS:  0x000000000000002b, SS:  0x0000000000000023
Error code: 0x0000000000000000

Backtrace (CPU 0), Frame : Return Address
0xffffff800083cd10 : 0xffffff8000204d15 
0xffffff800083ce10 : 0xffffff80002d0238 
0xffffff800083cf00 : 0xffffff80002e48ff 

BSD process name corresponding to current thread: Elgato MPEG-2 De

Mac OS version:
10K540

Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun  7 16:32:41 PDT 2011; root:xnu-1504.15.3~1/RELEASE_X86_64
System model name: MacPro4,1 (Mac-F221BEC8)

FrankHahn · Jul 1, 2011

IainH said:

Recently Ive started to get a rather worrying amount of kernel panics. I figure one or two a year isnt bad...but one every few weeks (and now days) is just plain scary.

Ive included a few of the crash logs below (purged the bottom crap that I believe to be pointless). Id love it if someone who understands these could take a look and tell me whats probably wrong?

From my attempted understanding of them something has gone bad in the RAM. For some reason I thought removing and reseating all the sticks in different slots (6 of them) might help. Not sure why. Another panic just happened with an error log that looked the same. RAM is installed as per manual recommendation (if that helps?)

During these ive either been playing WoW, web browsing with random crap open or watching tv via an elgato eyetv.

Onto the logs!

Code:

Interval Since Last Panic Report:  112110 sec
Panics Since Last Report:          1

Mon Jun 27 23:17:15 2011
Machine-check capabilities (cpu 0) 0x0000000000001c09:
 family: 6 model: 26 stepping: 5 microcode: 17
 Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz
 9 error-reporting banks
 threshold-based error status present
 extended corrected memory error handling present
Machine-check status 0x0000000000000004:
 machine-check in progress
MCA error-reporting registers:
 IA32_MC0_STATUS(0x401): 0x0000000000000800 invalid
 IA32_MC1_STATUS(0x405): 0x0000000000000800 invalid
 IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
 IA32_MC3_STATUS(0x40d): 0x0000000000000000 invalid
 IA32_MC4_STATUS(0x411): 0x0000000000000000 invalid
 IA32_MC5_STATUS(0x415): 0x0000000000000000 invalid
 IA32_MC6_STATUS(0x419): 0x0000000000000000 invalid
 IA32_MC7_STATUS(0x41d): 0x0000000000000000 invalid
 Package 0 logged:
 IA32_MC8_STATUS(0x421): 0x0000000000000000 invalid
 Package 1 logged:
 IA32_MC8_STATUS(0x421): 0xbe0000000001009f valid
  Channel number:         15 (unknown)
  Memory Operation:       read
  Machine-specific error: Read ECC
  COR_ERR_CNT:            0
  Status bits:
   Processor context corrupt
   ADDR register valid
   MISC register valid
   Error enabled
   Uncorrected error
 IA32_MC8_ADDR(0x422): 0x000000000a79eac0
 IA32_MC8_MISC(0x423): 0x5494762900081280
  DIMM:     0
  Channel:  2
  Syndrome: 0x54947629
panic(cpu 13 caller 0xffffff80002d0238): Machine Check thread:0xffffff801cd31588 at 0xffffff7f811dd58a, registers:
CR0: 0x000000008001003b, CR2: 0x00007fff5fbff298, CR3: 0x0000000000100000, CR4: 0x0000000000000660
RAX: 0x0000000000000001, RBX: 0xffffff801cc9f000, RCX: 0x0000000000000001, RDX: 0xffffff7f811ef4c0
RSP: 0xffffff80faf2bd60, RBP: 0xffffff80faf2bda0, RSI: 0xffffff801cc9f000, RDI: 0xffffff801cbbce00
R8:  0x0000000000000000, R9:  0x0000000000480000, R10: 0x0000000000080000, R11: 0xffffff80002d648b
R12: 0xffffff7f811efc68, R13: 0xffffff801cbbcac0, R14: 0x0000000000000001, R15: 0xffffff7f811edd18
RFL: 0x0000000000000082, RIP: 0xffffff7f811dd58a, CS:  0x0000000000000008, SS:  0x0000000000000010
Error code: 0x0000000000000000

Backtrace (CPU 13), Frame : Return Address
0xffffff80fb287eb0 : 0xffffff8000204d15 
0xffffff80fb287fb0 : 0xffffff80002d0238 
0xffffff80fb2880a0 : 0xffffff80002e48ff 
0xffffff80faf2bda0 : 0xffffff7f811d5567 
0xffffff80faf2be80 : 0xffffff7f811d68a7 
0xffffff80faf2bf20 : 0xffffff800022e409 
0xffffff80faf2bf40 : 0xffffff80002083a4 
0xffffff80faf2bf80 : 0xffffff800027f532 
0xffffff80faf2bfa0 : 0xffffff80002c8527 
      Kernel Extensions in backtrace (with dependencies):
         com.apple.driver.AppleIntelCPUPowerManagement(142.6.0)@0xffffff7f811d4000->0xffffff7f811f7fff

BSD process name corresponding to current thread: kernel_task

Mac OS version:
10K540

Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun  7 16:32:41 PDT 2011; root:xnu-1504.15.3~1/RELEASE_X86_64
System model name: MacPro4,1 (Mac-F221BEC8)

Code:

Interval Since Last Panic Report:  6505 sec
Panics Since Last Report:          1

Tue Jun 28 20:03:57 2011
Machine-check capabilities (cpu 8) 0x0000000000001c09:
 family: 6 model: 26 stepping: 5 microcode: 17
 Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz
 9 error-reporting banks
 threshold-based error status present
 extended corrected memory error handling present
Machine-check status 0x0000000000000004:
 machine-check in progress
MCA error-reporting registers:
 IA32_MC0_STATUS(0x401): 0x0000000000000800 invalid
 IA32_MC1_STATUS(0x405): 0x0000000000000800 invalid
 IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
 IA32_MC3_STATUS(0x40d): 0x0000000000000000 invalid
 IA32_MC4_STATUS(0x411): 0x0000000000000000 invalid
 IA32_MC5_STATUS(0x415): 0x0000000000000000 invalid
 IA32_MC6_STATUS(0x419): 0x0000000000000000 invalid
 IA32_MC7_STATUS(0x41d): 0x0000000000000000 invalid
 Package 1 logged:
 IA32_MC8_STATUS(0x421): 0xbe0000000001009f valid
  Channel number:         15 (unknown)
  Memory Operation:       read
  Machine-specific error: Read ECC
  COR_ERR_CNT:            0
  Status bits:
   Processor context corrupt
   ADDR register valid
   MISC register valid
   Error enabled
   Uncorrected error
 IA32_MC8_ADDR(0x422): 0x000000000a79e7c0
 IA32_MC8_MISC(0x423): 0x72a3453200085840
  DIMM:     0
  Channel:  2
  Syndrome: 0x72a34532
 Package 0 logged:
 IA32_MC8_STATUS(0x421): 0x0000000000000000 invalid
panic(cpu 8 caller 0xffffff80002d0238): Machine Check thread:0xffffff8021c54260 at 0xffffff80002c5530, registers:
CR0: 0x0000000080010033, CR2: 0x0000000113da5000, CR3: 0x00000001da64a000, CR4: 0x0000000000000660
RAX: 0xffffff8021c54260, RBX: 0xffffff80266fff80, RCX: 0x0000000002000000, RDX: 0xffffff80266fff88
RSP: 0xffffff8102093e10, RBP: 0xffffff8102093e10, RSI: 0x000000000001dc03, RDI: 0xffffff80266fff88
R8:  0x0000000000010000, R9:  0x0000000000000000, R10: 0x0000000000000000, R11: 0xffffff7f811d5bf7
R12: 0x0000000000000000, R13: 0xffffff801ddb9f00, R14: 0xffffff8102093e68, R15: 0xffffff8000281be1
RFL: 0x0000000000000246, RIP: 0xffffff80002c5530, CS:  0x0000000000000008, SS:  0x0000000000000010
Error code: 0x0000000000000000

Backtrace (CPU 8), Frame : Return Address
0xffffff80fb0eceb0 : 0xffffff8000204d15 
0xffffff80fb0ecfb0 : 0xffffff80002d0238 
0xffffff80fb0ed0a0 : 0xffffff80002e48ff 
0xffffff8102093e10 : 0xffffff800026fb8d 
0xffffff8102093e50 : 0xffffff8000279d6f 
0xffffff8102093e90 : 0xffffff8000281ba3 
0xffffff8102093ed0 : 0xffffff80002c2daa 
0xffffff8102093fa0 : 0xffffff80002e4536 

BSD process name corresponding to current thread: EyeTV

Mac OS version:
10K540

Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun  7 16:32:41 PDT 2011; root:xnu-1504.15.3~1/RELEASE_X86_64
System model name: MacPro4,1 (Mac-F221BEC8)

Code:

Interval Since Last Panic Report:  15513 sec
Panics Since Last Report:          1

Wed Jun 29 13:06:11 2011
Machine-check capabilities (cpu 9) 0x0000000000001c09:
 family: 6 model: 26 stepping: 5 microcode: 17
 Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz
 9 error-reporting banks
 threshold-based error status present
 extended corrected memory error handling present
Machine-check status 0x0000000000000004:
 machine-check in progress
MCA error-reporting registers:
 IA32_MC0_STATUS(0x401): 0x0000000000000800 invalid
 IA32_MC1_STATUS(0x405): 0x0000000000000800 invalid
 IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
 IA32_MC3_STATUS(0x40d): 0x0000000000000000 invalid
 IA32_MC4_STATUS(0x411): 0x0000000000000000 invalid
 IA32_MC5_STATUS(0x415): 0x0000000000000000 invalid
 IA32_MC6_STATUS(0x419): 0x0000000000000000 invalid
 IA32_MC7_STATUS(0x41d): 0x0000000000000000 invalid
 Package 1 logged:
 IA32_MC8_STATUS(0x421): 0xbe0000000001009f valid
  Channel number:         15 (unknown)
  Memory Operation:       read
  Machine-specific error: Read ECC
  COR_ERR_CNT:            0
  Status bits:
   Processor context corrupt
   ADDR register valid
   MISC register valid
   Error enabled
   Uncorrected error
 IA32_MC8_ADDR(0x422): 0x000000000a79e7c0
 IA32_MC8_MISC(0x423): 0xe62e671200080280
  DIMM:     0
  Channel:  2
  Syndrome: 0xe62e6712
 Package 0 logged:
 IA32_MC8_STATUS(0x421): 0x0000000000000000 invalid
panic(cpu 9 caller 0xffffff80002d0238): Machine Check thread:0xffffff801cd32ba8 at 0xffffff7f811dd58a, registers:
CR0: 0x000000008001003b, CR2: 0x000000010046a000, CR3: 0x0000000000100000, CR4: 0x0000000000000660
RAX: 0x0000000000000001, RBX: 0xffffff801cc9f000, RCX: 0x0000000000000001, RDX: 0xffffff7f811ef4c0
RSP: 0xffffff8104c33d60, RBP: 0xffffff8104c33da0, RSI: 0xffffff801cc9f000, RDI: 0xffffff801cbbcd00
R8:  0x0000000000000000, R9:  0x0000000000480000, R10: 0x0000000000000000, R11: 0xffffff80002d648b
R12: 0xffffff7f811efc68, R13: 0xffffff801cbbc940, R14: 0x0000000000000001, R15: 0xffffff7f811edd18
RFL: 0x0000000000000082, RIP: 0xffffff7f811dd58a, CS:  0x0000000000000008, SS:  0x0000000000000010
Error code: 0x0000000000000000

Backtrace (CPU 9), Frame : Return Address
0xffffff80fb22beb0 : 0xffffff8000204d15 
0xffffff80fb22bfb0 : 0xffffff80002d0238 
0xffffff80fb22c0a0 : 0xffffff80002e48ff 
0xffffff8104c33da0 : 0xffffff7f811d5567 
0xffffff8104c33e80 : 0xffffff7f811d68a7 
0xffffff8104c33f20 : 0xffffff800022e409 
0xffffff8104c33f40 : 0xffffff80002083a4 
0xffffff8104c33f80 : 0xffffff800027f532 
0xffffff8104c33fa0 : 0xffffff80002c8527 
      Kernel Extensions in backtrace (with dependencies):
         com.apple.driver.AppleIntelCPUPowerManagement(142.6.0)@0xffffff7f811d4000->0xffffff7f811f7fff

BSD process name corresponding to current thread: kernel_task

Mac OS version:
10K540

Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun  7 16:32:41 PDT 2011; root:xnu-1504.15.3~1/RELEASE_X86_64
System model name: MacPro4,1 (Mac-F221BEC8)

Code:

Interval Since Last Panic Report:  72161 sec
Panics Since Last Report:          2

Fri Jul  1 21:42:06 2011
Machine-check capabilities (cpu 0) 0x0000000000001c09:
 family: 6 model: 26 stepping: 5 microcode: 17
 Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz
 9 error-reporting banks
 threshold-based error status present
 extended corrected memory error handling present
Machine-check status 0x0000000000000004:
 machine-check in progress
MCA error-reporting registers:
 IA32_MC0_STATUS(0x401): 0x0000000000000800 invalid
 IA32_MC1_STATUS(0x405): 0x0000000000000800 invalid
 IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
 IA32_MC3_STATUS(0x40d): 0x0000000000000000 invalid
 IA32_MC4_STATUS(0x411): 0x0000000000000000 invalid
 IA32_MC5_STATUS(0x415): 0x0000000000000000 invalid
 IA32_MC6_STATUS(0x419): 0x0000000000000000 invalid
 IA32_MC7_STATUS(0x41d): 0x0000000000000000 invalid
 Package 0 logged:
 IA32_MC8_STATUS(0x421): 0xbe0000000001009f valid
  Channel number:         15 (unknown)
  Memory Operation:       read
  Machine-specific error: Read ECC
  COR_ERR_CNT:            0
  Status bits:
   Processor context corrupt
   ADDR register valid
   MISC register valid
   Error enabled
   Uncorrected error
 IA32_MC8_ADDR(0x422): 0x000000000a79eb80
 IA32_MC8_MISC(0x423): 0xff44967100085840
  DIMM:     0
  Channel:  2
  Syndrome: 0xff449671
 Package 1 logged:
 IA32_MC8_STATUS(0x421): 0x0000000000000000 invalid
panic(cpu 0 caller 0xffffff80002d0238): Machine Check thread:0xffffff8020871588 at 0x000000010004e3ed, registers:
CR0: 0x0000000080010033, CR2: 0x0000000103f7e868, CR3: 0x0000000114fca000, CR4: 0x0000000000000660
RAX: 0x0000000101275f58, RBX: 0x0000000100086e20, RCX: 0x000000010028084e, RDX: 0x000000000002d410
RSP: 0x0000000100280718, RBP: 0x00000001002809d0, RSI: 0x000000000000000c, RDI: 0x0000000000000002
R8:  0x000000009ef5d718, R9:  0x000000000000fffc, R10: 0x00000000ffffffff, R11: 0x0000000000000002
R12: 0x000000010007a100, R13: 0x0000000000000000, R14: 0x000000000000bb3d, R15: 0x00000000000005a0
RFL: 0x0000000000000202, RIP: 0x000000010004e3ed, CS:  0x000000000000002b, SS:  0x0000000000000023
Error code: 0x0000000000000000

Backtrace (CPU 0), Frame : Return Address
0xffffff800083cd10 : 0xffffff8000204d15 
0xffffff800083ce10 : 0xffffff80002d0238 
0xffffff800083cf00 : 0xffffff80002e48ff 

BSD process name corresponding to current thread: Elgato MPEG-2 De

Mac OS version:
10K540

Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun  7 16:32:41 PDT 2011; root:xnu-1504.15.3~1/RELEASE_X86_64
System model name: MacPro4,1 (Mac-F221BEC8)

I looked through your KP reports. I can definitely say that it was the memory that caused all the KPs.
You can see clearly that the reports said that "Machine-specific error: Read ECC".

Cynicalone · Jul 1, 2011

It looks like the RAM.

You can use the system disks that came with the Mac Pro to test the RAM. If you have Applecare and call them they will walk you threw testing the RAM.

Basically boot the Mac Pro with two sticks installed and test them. Then shutdown install another pair keep testing them until you find the bad stick(s). Just using a process of elimination and the disk's that came with the computer you can troubleshoot it.

IainH · Jul 1, 2011

Is there a way to narrow down which stick it is? I ran the TechTool software on the RAM but it reported no errors however I suspect the RAM needs to be pushed harder to find out which stick.

Is it possible that its the actual memory controller thats messing up? They all seem to mention a "DIMM 0 Channel 2". Wonder if its possible I just managed to put the same stick into another DIMM in channel 2. Front 3 were put in the back, back 3 in the front.

Edit: Seems this was answered in the post above, cheers =D You posted while I was writing my reply lol

Can I use a standard snow leopard disc? Or does it have to be the system discs? From memory boot into diagnostics is hold D on boot with disc in isnt it?

Cynicalone · Jul 1, 2011

It'll take some time but I can tell you what Apple would tell you to do.

Find the grey system disks that came with the Mac Pro
Insert the disk that has the hardware test on it
Shut down the Mac Pro
Remove all the RAM sticks
Insert two stick into slots 1 & 2
Reboot holding down "D"
Run the quick test

You can keep testing in pairs until you get an error.

IainH · Jul 1, 2011

What happens if none of them generate an error? DIMM0 suggests to me the first slot is the bad one but the stick that WAS in slot 1 on the 28th was moved into slot 7 on the 29th. Though I suppose its possible I have multiple faulties.

Just worried nothing is going to show up =\

I'll start testing in the morning.

Whats the chance its the daughterboard itself that has the faults? Id love to think its an apple hardware fault (ram is 3rd party) and that they dont have the parts to fix it so I can get a replacement with a 2011...but I know that wont happen

Cynicalone · Jul 1, 2011

Well if you test all the pairs and they pass you'll have to move on to testing the slots.

The quick test takes about 3 minutes to run and it was able to catch the bad stick in my system.

One of my 8 sticks died and kept causing kernel panics. Threw a process of elimination I was able to figure out which stick it was and remove it.

DanielCoffey · Jul 1, 2011

If you do manage to narrow it down to one pair, you can then test each of that pair with one from a pair that passed.

Cynicalone · Jul 1, 2011

DanielCoffey said:
If you do manage to narrow it down to one pair, you can then test each of that pair with one from a pair that passed.

That was what I was able to do on my system. And of course it turned out to be the eight and final stick I tested.

IainH · Jul 1, 2011

Heh at least Im only running 6 instead of 8 so slight advantage there =P

IainH · Jul 1, 2011

So out of interest I decided to run the hardware test with all 6 sticks in the machine (the quick test) but no errors came up.

Does this mean when I get to doing it 2 at a time and rotate them through the slots its possible no errors will shoot up?

Cynicalone · Jul 1, 2011

Try running the extended testing option. It will take a long time so best to do it over night.

IainH · Jul 1, 2011

Ive temporarily thrown in the factory 6x1gb sticks just incase its an issue with the daughterboard and not the ram itself.

Out of interest is there a better memory testing tool? From what Ive read the AHT tool is pretty poor and something like memtest86 would be far better however in trying to find and get running an apple version of it Ive so far been unsucessful.

philipma1957 · Jul 1, 2011

USE REMBER !

http://www.macupdate.com/app/mac/15837/rember/

THIS WORKS!

I use it on my 2010 mac pro.

FREE!

Cynicalone · Jul 1, 2011

philipma1957 said:
USE REMBER !

http://www.macupdate.com/app/mac/15837/rember/

THIS WORKS!

I use it on my 2010 mac pro.

FREE!

I've used that as well.

IainH · Jul 1, 2011

Ive heard of it except apparently it wont test the RAM already in use by the OS since you run it while fully booted. Was hoping to get more a memtest style thing that can test all system ram, not just whats available.

Ill check it out anyway, thanks.

fr4c · Jul 2, 2011

Getting memtest and running it in single user mode is probably the best thing to do.

IainH · Jul 2, 2011

fr4c said:
Getting memtest and running it in single user mode is probably the best thing to do.

Ive so far failed in trying to find and get working a mac version of memtest. I read it was meant to just be incorporated into it now but the boot discs arent loading it as they should.

chrfr · Jul 2, 2011

Here's a long shot: look in System Profiler at the memory configuration. I've had ECC memory actually show as faulty there before. You'd see something other than "OK" under the status header.

IainH · Jul 2, 2011

chrfr said:
Here's a long shot: look in System Profiler at the memory configuration. I've had ECC memory actually show as faulty there before. You'd see something other than "OK" under the status header.

Checked that. All showed OK

Washac · Jul 3, 2011

Hi

Do not know if this will be any help at all but I was getting regular Panics on my 09 Mac Pro, It did not matter what I did they just continued.

I ran all checks on the sticks which were three 1GB sticks with Rember and got no errors.

I then decided to take a chance and buy two 2GB sticks, I took note from the KP to which Channel and DIMM the error was pointing towards and put a sticker on that stick.

I then put the two 2GB sticks into DIMM slots 1&2 and placed the two of the 1GB sticks including the one the error pointed towards into DIMM slots 3&4.

From that day, no more panics

No idea what the cause was, memory of some sort I believe.

Sudden kernel panic epidemic on 09 pro

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