Problema de travamento do Windows / Linux - BSOD

Question

Detalhes do sistema:

DELL Latitude 3540 with Windows 7 & Ubuntu linux, dual boot.

Observação:

I see below error in windows 7 system logs frequently. Windows/Linux gets hanged 5 minutes after switching/working on laptop.

Interesting observation is, if Windows/Linux OS is working under high bandwidth wifi coverage, then windows/Linux continue working properly. Under low bandwidth wifi coverage Windows/Linux hang within 5 minutes.

That means, Ubuntu/Windows7 works for properly(for ever), until, until some application/browser connects to Internet thru low bandwidth wifi.

memtest86+ tool shows all tests PASS and amidst testing CPU temp is 50°C to 53°C

In ubuntu, wifi details taken,

mohet01@mohet01-ubuntu:~$lspci -knn | grep Net 02:00.0 Network controller [0280]: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter [168c:0036] (rev 01) Subsystem: Dell QCA9565 / AR9565 Wireless Network Adapter [1028:020c]

Consequência:

OS hangs consistently and need to restart within 5 minutes.

Received core dump in windows 7(once) with blue screen(shown below)

/ ********************************************** **** /

Problem signature:
  Problem Event Name:   BlueScreen
  OS Version:   6.1.7601.2.1.0.768.3
  Locale ID:    4105

Additional information about the problem:
  BCCode:   124
  BCP1: 0000000000000000
  BCP2: FFFFFA8007067028
  BCP3: 00000000BE000000
  BCP4: 0000000000800400
  OS Version:   6_1_7601
  Service Pack: 1_0
  Product:  768_1

Files that help describe the problem:
  C:\Windows\Minidump1717-25412-01.dmp
  C:\Users\....\AppData\Local\Temp\WER-78016-0.sysdata.xml

/ ********************************************** **** /

---

Detalhes do log no formato XML:

- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
  <Provider Name="Microsoft-Windows-WHEA-Logger" Guid="{C26C4F3C-3F66-4E99-8F8A-39405CFED220}" /> 
  <EventID>18</EventID> 
  <Version>0</Version> 
  <Level>2</Level> 
  <Task>0</Task> 
  <Opcode>0</Opcode> 
  <Keywords>0x8000000000000000</Keywords> 
  <TimeCreated SystemTime="2017-03-13T16:14:23.559321500Z" /> 
  <EventRecordID>14505</EventRecordID> 
  <Correlation ActivityID="{0B7D462B-CDAA-4CD9-B8D9-C9532A2A345F}" /> 
  <Execution ProcessID="1796" ThreadID="1968" /> 
  <Channel>System</Channel> 
  <Computer>mohet01-w7</Computer> 
  <Security UserID="S-1-5-19" /> 
  </System>
- <EventData>
  <Data Name="ErrorSource">3</Data> 
  <Data Name="ApicId">0</Data> 
  <Data Name="MCABank">6</Data> 
  <Data Name="MciStat">0xae0000000040110a</Data> 
  <Data Name="MciAddr">0xffb07540</Data> 
  <Data Name="MciMisc">0x238a0000086</Data> 
  <Data Name="ErrorType">9</Data> 
  <Data Name="TransactionType">2</Data> 
  <Data Name="Participation">256</Data> 
  <Data Name="RequestType">0</Data> 
  <Data Name="MemorIO">256</Data> 
  <Data Name="MemHierarchyLvl">2</Data> 
  <Data Name="Timeout">256</Data> 
  <Data Name="OperationType">256</Data> 
  <Data Name="Channel">256</Data> 
  <Data Name="Length">928</Data> 
  <Data Name="RawData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ata> 
  </EventData>
  </Event>

Process id 1796,

All levels of DELL support for this laptop is expired in 2016.

Diagnóstico:

I ran below diagnostics on Intel processor of this laptop, looks fine.

Pergunta:

Tem algo a ver com o problema de hardware?

ou

É algo relacionado ao problema do driver WIFI em ambos (Linux / Windows7) que aciona esse problema?

    

Answer 1

Evento com ID 18 é um erro fatal. É assim que o Evento 18 é declarado no Windows:

<event channel="chidSystem" level="win:Error" message="$(string.EventMessage.XpfMcaErr)" symbol="WHEALOGR_XPF_MCA_ERROR" template="tidMachineCheck" value="18" />

<string id="EventMessage.XpfMcaErr" value="A fatal hardware error has occurred.%n%nReported by component: Processor Core%nError Source: %1%nError Type: %7%nProcessor APIC ID: %2%n%nThe details view of this entry contains further information." />

Um cache hierarchy error pode ser um problema com o cache L1, L2 da sua CPU. Execute a ferramenta de estresse da CPU que acessa muito o cache da CPU. Talvez relate algum erro. Acho que você precisa substituir a CPU, como este usuário , que vê a mesma mensagem.

O dump 0x124 mostra problemas de cache L2:

===============================================================================
Common Platform Error Record @ fffffa8006d0d8f8
-------------------------------------------------------------------------------
Record Id     : 01d2a2c0cacd2425
Severity      : Fatal (1)
Length        : 928
Creator       : Microsoft
Notify Type   : Machine Check Exception
Timestamp     : 3/22/2017 4:00:10 (UTC)
Flags         : 0x00000002 PreviousError

===============================================================================
Section 0     : Processor Generic
-------------------------------------------------------------------------------
Descriptor    @ fffffa8006d0d978
Section       @ fffffa8006d0da50
Offset        : 344
Length        : 192
Flags         : 0x00000001 Primary
Severity      : Fatal

Proc. Type    : x86/x64
Instr. Set    : x64
Error Type    : Cache error
Operation     : Generic
Flags         : 0x00
Level         : 2
CPU Version   : 0x0000000000040651
Processor ID  : 0x0000000000000000

===============================================================================
Section 1     : x86/x64 Processor Specific
-------------------------------------------------------------------------------
Descriptor    @ fffffa8006d0d9c0
Section       @ fffffa8006d0db10
Offset        : 536
Length        : 128
Flags         : 0x00000000
Severity      : Fatal

Local APIC Id : 0x0000000000000000
CPU Id        : 51 06 04 00 00 08 10 00 - bf fb da 7f ff fb eb bf
                00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
                00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00

Proc. Info 0  @ fffffa8006d0db10

===============================================================================
Section 2     : x86/x64 MCA
-------------------------------------------------------------------------------
Descriptor    @ fffffa8006d0da08
Section       @ fffffa8006d0db90
Offset        : 664
Length        : 264
Flags         : 0x00000000
Severity      : Fatal

Error         : GCACHEL2_ERR_ERR (Proc 0 Bank 6)
  Status      : 0xae0000000040110a
  Address     : 0x00000000ffb07540
  Misc.       : 0x000001f8a0000086

Então, às vezes, o código usa o cache L2 e falha e às vezes não. O dump só mostra erro genérico, então não tenho idéia do que está errado.

Compre a mesma CPU novamente no ebay e substitua-a.