windbg can't load symbol

Hi dear all,
I can’t load symbol file from microsoft symbol server , following is
windbg output

0:000> .reload
Reloading current modules

SYMSRV: 与服务器的连接被重置
SYMSRV: 与服务器的连接被重置
SYMSRV: d:\symbols\ntdll.pdb\1751003260CA42598C0FB326585000ED2\ntdll.pdb
not found
SYMSRV: https://msdl.microsoft.com/download/symbols/ntdll.pdb/1751003260CA42598C0FB326585000ED2/ntdll.pdb
not found
DBGHELP: ntdll.pdb - file not found
*** ERROR: Symbol file could not be found. Defaulted to export
symbols for C:\WINDOWS\system32\ntdll.dll -
DBGHELP: ntdll - export symbols

BTW , I’ve tried paste
https://msdl.microsoft.com/download/symbols/ntdll.pdb/1751003260CA42598C0FB326585000ED2/ntdll.pdb
in browser and it works .

please help , many thanks!!!

Hi Shang yu

Try

!sym noisy

Before the

.reload

Perhaps this will tell you more !

Jolyon

On 3 Aug 2018, at 15:59, Shang Yu xxxxx@lists.osr.com wrote:
>
> Hi dear all,
> I can’t load symbol file from microsoft symbol server , following is
> windbg output
>
> 0:000> .reload
> Reloading current modules
> …
> SYMSRV: 与服务器的连接被重置
> SYMSRV: 与服务器的连接被重置
> SYMSRV: d:\symbols\ntdll.pdb\1751003260CA42598C0FB326585000ED2\ntdll.pdb
> not found
> SYMSRV: https://msdl.microsoft.com/download/symbols/ntdll.pdb/1751003260CA42598C0FB326585000ED2/ntdll.pdb
> not found
> DBGHELP: ntdll.pdb - file not found
> *** ERROR: Symbol file could not be found. Defaulted to export
> symbols for C:\WINDOWS\system32\ntdll.dll -
> DBGHELP: ntdll - export symbols
>
> BTW , I’ve tried paste
> https://msdl.microsoft.com/download/symbols/ntdll.pdb/1751003260CA42598C0FB326585000ED2/ntdll.pdb
> in browser and it works .
>
> please help , many thanks!!!
>
> —
> WINDBG is sponsored by OSR
>
> OSR is hiring!! Info at http://www.osr.com/careers
>
>
> MONTHLY seminars on crash dump analysis, WDF, Windows internals and software drivers!
> Details at http:
>
> To unsubscribe, visit the List Server section of OSR Online at http:</http:></http:>

sorry , but I’ve turned noisy on.

2018-08-04 2:42 GMT+08:00, Jolyon Wright
:
> Hi Shang yu
>
> Try
>
> !sym noisy
>
> Before the
>
> .reload
>
> Perhaps this will tell you more !
>
> Jolyon
>
>> On 3 Aug 2018, at 15:59, Shang Yu xxxxx@lists.osr.com
>> wrote:
>>
>> Hi dear all,
>> I can’t load symbol file from microsoft symbol server , following is
>> windbg output
>>
>> 0:000> .reload
>> Reloading current modules
>> …
>> SYMSRV: 与服务器的连接被重置
>> SYMSRV: 与服务器的连接被重置
>> SYMSRV: d:\symbols\ntdll.pdb\1751003260CA42598C0FB326585000ED2\ntdll.pdb
>> not found
>> SYMSRV:
>> https://msdl.microsoft.com/download/symbols/ntdll.pdb/1751003260CA42598C0FB326585000ED2/ntdll.pdb
>> not found
>> DBGHELP: ntdll.pdb - file not found
>> *** ERROR: Symbol file could not be found. Defaulted to export
>> symbols for C:\WINDOWS\system32\ntdll.dll -
>> DBGHELP: ntdll - export symbols
>>
>> BTW , I’ve tried paste
>> https://msdl.microsoft.com/download/symbols/ntdll.pdb/1751003260CA42598C0FB326585000ED2/ntdll.pdb
>> in browser and it works .
>>
>> please help , many thanks!!!
>>
>> —
>> WINDBG is sponsored by OSR
>>
>> OSR is hiring!! Info at http://www.osr.com/careers
>>
>>
>> MONTHLY seminars on crash dump analysis, WDF, Windows internals and
>> software drivers!
>> Details at http:
>>
>> To unsubscribe, visit the List Server section of OSR Online at
>> http:
>
> —
> WINDBG is sponsored by OSR
>
> OSR is hiring!! Info at http://www.osr.com/careers
>
>
> MONTHLY seminars on crash dump analysis, WDF, Windows internals and software
> drivers!
> Details at http:
>
> To unsubscribe, visit the List Server section of OSR Online at
> http:
></http:></http:></http:></http:>

thanks for replying . It works fine for now (I don’t known the
reaosn). many thanks !!!

2018-08-07 3:40 GMT+08:00, Alan Adams
:
>> I can’t load symbol file from microsoft symbol server , following is
>> windbg output
>
> Is WinDBG running in a context where it CAN access the network?
>
> To ask it another way, are you able to download ANY symbols
> successfully? Or does any/every symbol download fail, not just this
> specific NTDLL.PDB download?
>
> For example, when you run WinDBG locally attached to LogonUI.exe
> instances to debug credential provider behavior, you don’t actually
> have any network access in WinDBG at that time because of the logon
> session and security context it is running under.
>
> (In such instances, you have to pull down all the symbols you need
> while running WinDBG from a normal desktop context which does have
> network access, so that the symbols are already in the local SYMSRV
> cache directory when you then later attempt to locally debug
> LogonUI.exe.)
>
> If the context from which WinDBG.exe is being executed isn’t unique in
> any way like that, but ALL of my symbol downloads are being failed, I
> would probably try and use Process Monitor and/or a Wireshark LAN
> trace to try and figure out what’s blocking them or preventing them
> from succeeding.
>
> Alan Adams
> Client for Open Enterprise Server
> Micro Focus
> xxxxx@microfocus.com
>
> —
> WINDBG is sponsored by OSR
>
> OSR is hiring!! Info at http://www.osr.com/careers
>
>
> MONTHLY seminars on crash dump analysis, WDF, Windows internals and software
> drivers!
> Details at http:
>
> To unsubscribe, visit the List Server section of OSR Online at
> http:
></http:></http:>