G4 mirrordoor fresh 10.5.4 kernel panic

hey folks....

I need a hero who speaks "problem reports".

It would REALLY APPRECIATE if one of you experts could glance over this and tell me what you think might be causing the freezing and forced restarts!

PROBLEM DETAILS:

Sat Jan 14 16:37:48 2012
panic(cpu 1 caller 0x000A0EDC): "mapping_free: mpLists invalid\n"@/SourceCache/xnu/xnu-1228.5.20/osfmk/ppc/mappings.c:908
Latest stack backtrace for cpu 1:
Backtrace:
0x0009B498 0x0009BE3C 0x00029DD8 0x000A0EDC 0x000A1B7C 0x0009ED2C 0x0006445C 0x00066DE0
0x000AF90C 0x000B2A78
Proceeding back via exception chain:
Exception state (sv=0x2c00d780)
PC=0x96C8DA84; MSR=0x0200F030; DAR=0x04601000; DSISR=0x42000000; LR=0x96C8DA60; R1=0xBFFF6960; XCP=0x0000000C (0x300 - Data access)

BSD process name corresponding to current thread: WindowServer

Mac OS version:
9E25

Kernel version:
Darwin Kernel Version 9.4.0: Mon Jun 9 19:36:17 PDT 2008; root:xnu-1228.5.20~1/RELEASE_PPC
System model name: PowerMac3,6

SYSTEM CONFIGURATION

Model: PowerMac3,6, BootROM 4.4.7f1, 2 processors, PowerPC G4 (2.1), 1 GHz, 1.25 GB
Graphics: kHW_ATIrv250Item, ATY,RV250, spdisplays_agp_device, 64 MB
Memory Module: DIMM1/J22, 512 MB, DDR SDRAM, PC2600U-25330
Memory Module: DIMM2/J23, 256 MB, DDR SDRAM, PC2600U-25330
Memory Module: DIMM3/J20, 512 MB, DDR SDRAM, PC2600U-25330
Modem: Dash2, Euro, V.92, 1.0F, APPLE VERSION 2.6.7
Network Service: Ethernet, Ethernet, en0
Parallel ATA Device: PIONEER DVD-RW DVR-115D
Parallel ATA Device: Maxtor 6L300R0, 279.48 GB
USB Device: Hub in Apple Extended USB Keyboard, Alps Electric, full_speed, 500 mA
USB Device: Apple Optical USB Mouse, Mitsumi Electric, low_speed, 100 mA
USB Device: Apple Extended USB Keyboard, Alps Electric, full_speed, 250 mA

and....

IS IT JUST THAT I NEED MORE RAM? I only have 1.25 GB installed...
please help
Alwyn

Sat Jan 14 17:29:38 2012


Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=0x0000000000000000 PC=0x00000000000AADA4
Latest crash info for cpu 0:
Exception state (sv=0x33ef0c80)
PC=0x000AADA4; MSR=0x00009030; DAR=0x00000000; DSISR=0x40000000; LR=0x2A179434; R1=0x33E339B0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x000A0B8C 0x00109B04 0x00109F54 0x000FB5F0 0x0030AC5C 0x000B2C48
0x6F72005F
Kernel loadable modules in backtrace (with dependencies):
com.apple.filesystems.msdosfs(1.5.2)@0x2a16f000->0x2a17dfff
Proceeding back via exception chain:
Exception state (sv=0x33ef0c80)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x3c2c3500)
PC=0x9409889C; MSR=0x0000D030; DAR=0x00DDFE4C; DSISR=0x40000000; LR=0x001C9030; R1=0xF090F610; XCP=0x00000030 (0xC00 - System call)

BSD process name corresponding to current thread: mds

Mac OS version:
9E25

Kernel version:
Darwin Kernel Version 9.4.0: Mon Jun 9 19:36:17 PDT 2008; root:xnu-1228.5.20~1/RELEASE_PPC
System model name: PowerMac3,6
panic(cpu 0 caller 0xFFFF0003): 0x300 - Data access
Latest stack backtrace for cpu 0:
Backtrace:
0x0009B498 0x0009BE3C 0x00029DD8 0x000AF210 0x000B2A78
Proceeding back via exception chain:
Exception state (sv=0x33ef0c80)
PC=0x000AADA4; MSR=0x00009030; DAR=0x00000000; DSISR=0x40000000; LR=0x2A179434; R1=0x33E339B0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x000A0B8C 0x00109B04 0x00109F54 0x000FB5F0 0x0030AC5C 0x000B2C48
0x6F72005F
Kernel loadable modules in backtrace (with dependencies):
com.apple.filesystems.msdosfs(1.5.2)@0x2a16f000->0x2a17dfff
Exception state (sv=0x3c2c3500)
PC=0x9409889C; MSR=0x0000D030; DAR=0x00DDFE4C; DSISR=0x40000000; LR=0x001C9030; R1=0xF090F610; XCP=0x00000030 (0xC00 - System call)

BSD process name corresponding to current thread: mds

Fresh 10.5.4 - can you tell us if it's a new hard drive? Did you format it before installing OS X? Is it a Black retail version install DVD?

I see msdos file system refs there that I wouldn't expect.

Have you tried re-seating your current ram? Ram that is slightly out of place, or just dirty, is the cause for quite a few kernel panics.

Fresh 10.5.4 - can you tell us if it's a new hard drive? Did you format it before installing OS X? Is it a Black retail version install DVD?

No, not a fresh harddrive but I check drives often with disk utility, it seems fine... The installing of the "10.5.8 Combo Update" COMPLETELY crashed the computer, forcing ANOTHER formatting and fresh install of 10.5.4!

I see msdos file system refs there that I wouldn't expect.
OH... NO idea why there would be MS-DOS stuff! The drives are all formatted Mac os extended, journalled, apple partition map.

Have you tried re-seating your current ram? Ram that is slightly out of place, or just dirty, is the cause for quite a few kernel panics.
Yeah, I reseated the RAM and found a dodgy 256MB chip using ramtest. I binned it, leaving me with 2 healthy 512 chips. It is happening a lot less but HAS happened once since removing the 256 chip... Hopefully that was a one-off and could be cured by getting a bit more RAM??

I'll try a brand new hard drive too. THANKS GUYS!!!
I'll help an old lady across the street soon to balance the karma ;-)

Alwyn

I would also try the Leopard combo update, and when its finished do a permissions repair in Disk Utility

Since you have already done the RAM thing - I assume you have also tries disconnecting all unnecessary USB peripherals - then the combo update sometimes gives the system a good refresh, where the incremental updates sometimes dont

Mac OS X 10.5.8 Combo Update

Thanks man but the installing of the "10.5.8 Combo Update" COMPLETELY crashed the computer, forcing ANOTHER formatting and fresh install of 10.5.4!

and yeah, it's not any USB peripherals, i of course removed everything other than standard keyboard and mighty mouse...