Sono disperato!!! kernel panic!!!

[drmarius87]

salve a tutti. mi chiamo dario e possiedo un imac G4 700 Mhz con 512 Mb di RAM (256 di partenza più altri 256 aggiunti da un apple store). il mio problema riguarda il kernel panic: infatti da qualke giorno, anche con nessuna appplicazione aperta (addirittura col solo finder in azione), il computer mi si blocca improvvisamente e dopo riavvii forzati (col tasto di accensione posteriore) non sempre riesce ad avviarsi completamente e si blocca molte volte durante il caricamento del desktop e del finder. quindi sono costretto ogni volta a riavviare nuovamente. anzi in questo momento mi posso ritenere fortunato a potere scrivere questo topic sul vostro forum!!!

ho inserito la discussione nell'area "schede grafiche" perchè penso ke il problema sia relativo proprio all'acceleratore grafico (quello ke ho io è una NVIDIA G-Force 2 MX). infatti nel panic log risulta questo scritto:

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Fri Jan 5 21:26:40 2007
panic(cpu 0 caller 0x0081CC9C): Apparent UniNorth Hang: AGP STATUS = 0x00000004

Latest stack backtrace for cpu 0:
Backtrace:
0x00095718 0x00095C30 0x0002683C 0x0081CC9C 0x0081D1B0 0x00807808 0x002EB7AC 0x0008CB88
0x000291C0 0x000233AC 0x000AC0AC 0x2667743B
Kernel loadable modules in backtrace (with dependencies):
com.apple.GeForce(4.1.8)@0x7fa000
dependency: com.apple.iokit.IOPCIFamily(1.7)@0x484000
dependency: com.apple.iokit.IOGraphicsFamily(1.4.1)@0x5f7000
dependency: com.apple.iokit.IONDRVSupport(1.4.1)@0x61b000
dependency: com.apple.NVDAResman(4.1.8)@0x631000
Proceeding back via exception chain:
Exception state (sv=0x20DB2C80)
PC=0x9000B268; MSR=0x0000F030; DAR=0xE026A000; DSISR=0x42000000; LR=0x9000B1BC; R1=0xBFFED4A0; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 8.7.0: Fri May 26 15:20:53 PDT 2006; root:xnu-792.6.76.obj~1/RELEASE_PPC

*********

Sat Jan 6 09:06:01 2007
panic(cpu 0 caller 0x0081CC9C): Apparent UniNorth Hang: AGP STATUS = 0x00000004

Latest stack backtrace for cpu 0:
Backtrace:
0x00095718 0x00095C30 0x0002683C 0x0081CC9C 0x0081D1B0 0x00807808 0x002EB7AC 0x0008CB88
0x000291C0 0x000233AC 0x000AC0AC 0x2667743B
Kernel loadable modules in backtrace (with dependencies):
com.apple.GeForce(4.1.8)@0x7fa000
dependency: com.apple.iokit.IOPCIFamily(1.7)@0x484000
dependency: com.apple.iokit.IOGraphicsFamily(1.4.1)@0x5f7000
dependency: com.apple.iokit.IONDRVSupport(1.4.1)@0x61b000
dependency: com.apple.NVDAResman(4.1.8)@0x631000
Proceeding back via exception chain:
Exception state (sv=0x20DB2C80)
PC=0x9000B268; MSR=0x0000F030; DAR=0xE026A000; DSISR=0x42000000; LR=0x9000B1BC; R1=0xBFFED4A0; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 8.7.0: Fri May 26 15:20:53 PDT 2006; root:xnu-792.6.76.obj~1/RELEASE_PPC

*********

Sat Jan 6 13:21:58 2007
panic(cpu 0 caller 0x0081CC9C): Apparent UniNorth Hang: AGP STATUS = 0x00000004

Latest stack backtrace for cpu 0:
Backtrace:
0x00095718 0x00095C30 0x0002683C 0x0081CC9C 0x0081D1B0 0x00807808 0x002EB7AC 0x0008CB88
0x000291C0 0x000233AC 0x000AC0AC 0x0197B9C0
Kernel loadable modules in backtrace (with dependencies):
com.apple.GeForce(4.1.8)@0x7fa000
dependency: com.apple.iokit.IOPCIFamily(1.7)@0x484000
dependency: com.apple.iokit.IOGraphicsFamily(1.4.1)@0x5f7000
dependency: com.apple.iokit.IONDRVSupport(1.4.1)@0x61b000
dependency: com.apple.NVDAResman(4.1.8)@0x631000
Proceeding back via exception chain:
Exception state (sv=0x2ECE9000)
PC=0x9000B268; MSR=0x0200F030; DAR=0xE0274000; DSISR=0x42000000; LR=0x9000B1BC; R1=0xBFFED4A0; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 8.7.0: Fri May 26 15:20:53 PDT 2006; root:xnu-792.6.76.obj~1/RELEASE_PPC

*********

Sat Jan 6 13:23:13 2007
panic(cpu 0 caller 0x0081CC9C): Apparent UniNorth Hang: AGP STATUS = 0x00000004

Latest stack backtrace for cpu 0:
Backtrace:
0x00095718 0x00095C30 0x0002683C 0x0081CC9C 0x0081D1B0 0x00807808 0x002EB7AC 0x0008CB88
0x000291C0 0x000233AC 0x000AC0AC 0x0197B9C0
Kernel loadable modules in backtrace (with dependencies):
com.apple.GeForce(4.1.8)@0x7fa000
dependency: com.apple.iokit.IOPCIFamily(1.7)@0x484000
dependency: com.apple.iokit.IOGraphicsFamily(1.4.1)@0x5f7000
dependency: com.apple.iokit.IONDRVSupport(1.4.1)@0x61b000
dependency: com.apple.NVDAResman(4.1.8)@0x631000
Proceeding back via exception chain:
Exception state (sv=0x2ECE9000)
PC=0x9000B268; MSR=0x0200F030; DAR=0xE0274000; DSISR=0x42000000; LR=0x9000B1BC; R1=0xBFFED4A0; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 8.7.0: Fri May 26 15:20:53 PDT 2006; root:xnu-792.6.76.obj~1/RELEASE_PPC

*********

Sat Jan 6 13:24:38 2007
panic(cpu 0 caller 0x0081CC9C): Apparent UniNorth Hang: AGP STATUS = 0x00000004

Latest stack backtrace for cpu 0:
Backtrace:
0x00095718 0x00095C30 0x0002683C 0x0081CC9C 0x0081D1B0 0x00807808 0x002EB7AC 0x0008CB88
0x000291C0 0x000233AC 0x000AC0AC 0x0197B9C0
Kernel loadable modules in backtrace (with dependencies):
com.apple.GeForce(4.1.8)@0x7fa000
dependency: com.apple.iokit.IOPCIFamily(1.7)@0x484000
dependency: com.apple.iokit.IOGraphicsFamily(1.4.1)@0x5f7000
dependency: com.apple.iokit.IONDRVSupport(1.4.1)@0x61b000
dependency: com.apple.NVDAResman(4.1.8)@0x631000
Proceeding back via exception chain:
Exception state (sv=0x2ECE9000)
PC=0x9000B268; MSR=0x0200F030; DAR=0xE0274000; DSISR=0x42000000; LR=0x9000B1BC; R1=0xBFFED4A0; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 8.7.0: Fri May 26 15:20:53 PDT 2006; root:xnu-792.6.76.obj~1/RELEASE_PPC

*********

Sat Jan 6 13:26:54 2007
panic(cpu 0 caller 0x0081CC9C): Apparent UniNorth Hang: AGP STATUS = 0x00000004

Latest stack backtrace for cpu 0:
Backtrace:
0x00095718 0x00095C30 0x0002683C 0x0081CC9C 0x0081D1B0 0x00807808 0x002EB7AC 0x0008CB88
0x000291C0 0x000233AC 0x000AC0AC 0x0197B9C0
Kernel loadable modules in backtrace (with dependencies):
com.apple.GeForce(4.1.8)@0x7fa000
dependency: com.apple.iokit.IOPCIFamily(1.7)@0x484000
dependency: com.apple.iokit.IOGraphicsFamily(1.4.1)@0x5f7000
dependency: com.apple.iokit.IONDRVSupport(1.4.1)@0x61b000
dependency: com.apple.NVDAResman(4.1.8)@0x631000
Proceeding back via exception chain:
Exception state (sv=0x2ECE9000)
PC=0x9000B268; MSR=0x0200F030; DAR=0xE0274000; DSISR=0x42000000; LR=0x9000B1BC; R1=0xBFFED4A0; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 8.7.0: Fri May 26 15:20:53 PDT 2006; root:xnu-792.6.76.obj~1/RELEASE_PPC

*********

Sat Jan 6 13:28:31 2007
panic(cpu 0 caller 0x0081CC9C): Apparent UniNorth Hang: AGP STATUS = 0x00000004

Latest stack backtrace for cpu 0:
Backtrace:
0x00095718 0x00095C30 0x0002683C 0x0081CC9C 0x0081D1B0 0x00807808 0x002EB7AC 0x0008CB88
0x000291C0 0x000233AC 0x000AC0AC 0x0197B9C0
Kernel loadable modules in backtrace (with dependencies):
com.apple.GeForce(4.1.8)@0x7fa000
dependency: com.apple.iokit.IOPCIFamily(1.7)@0x484000
dependency: com.apple.iokit.IOGraphicsFamily(1.4.1)@0x5f7000
dependency: com.apple.iokit.IONDRVSupport(1.4.1)@0x61b000
dependency: com.apple.NVDAResman(4.1.8)@0x631000
Proceeding back via exception chain:
Exception state (sv=0x2ECE9000)
PC=0x9000B268; MSR=0x0200F030; DAR=0xE0274000; DSISR=0x42000000; LR=0x9000B1BC; R1=0xBFFED4A0; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 8.7.0: Fri May 26 15:20:53 PDT 2006; root:xnu-792.6.76.obj~1/RELEASE_PPC

*********

e cmq il panic log è molto più lungo in realtà e il primo "caso" risale a febbraio 2006. infatti non è la prima volta ke ho a ke fare con il kernel panic.

in più ho provando a fare l'apple hardware test risulta ke è presente un errore nella RAM video. e dopo il test compare questo codice d'errore: disp/13/2

cosa vuol dire? vi prego aiutatemi!

[AntoninoPPC]

Tutto sommato ti sei risposto da solo.
La RAM video....
In genere i kenrnel panic inspiegabili derivano da problemi hardware e nel 99,9% dei casi si tratta di problemi legati alla RAM.
Prova anche senza l'espansione messa in seguito a rifare l'hardware test e vedi se e' confermato il problema alla RAM video o se come per incanto sparisce....
AntoninoPPC