Problem Fetching Symbols

[Mike Moreton]

We're getting a problem with fetching symbols when running drmemory.  First of all we get the message:

System call information is missing for this operating system: WinVer=105;Rel=1809;Build=17763;Edition=ServerDatacenter.

and then it appears to try and fetch symbols itself, but that hangs until the job we're running times out after two hours.

Any ideas?

[Derek Bruening]

Symbol fetching has failed in a few instances as documented here: https://github.com/DynamoRIO/drmemory/issues/2232

Unfortunately we have not been able to reproduce it and it is not clear what the problem is.

Does running symchk directly to download work, as asked in the issue?  E.g., though the paths need adjustment:

c:\Program Files (x86)\Windows Kits\8.0\Debuggers\x86\symchk.exe /v /od /os /ot /ov /ob c:\WINDOWS\system32\ntdll.dll /s 'srv*C:\Users\name\AppData\Roaming\Dr. Memory\symcache\symbols*http://msdl.microsoft.com/download/symbols'

--

---
You received this message because you are subscribed to the Google Groups "Dr. Memory Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email to drmemory-user...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/drmemory-users/d66eacb0-4827-4d82-bb37-8323e318a20dn%40googlegroups.com.

[Mike Moreton]

Hi, sorry for the delay in getting back to you - work stuff got in the way.

We don't actually have symchk.exe on the system (it's a build server that uses MSYS2 for building).  Is that the problem?

[Derek Bruening]

On Wed, Apr 14, 2021 at 3:20 AM Mike Moreton <mike.mo...@gmail.com> wrote:

Hi, sorry for the delay in getting back to you - work stuff got in the way.

We don't actually have symchk.exe on the system (it's a build server that uses MSYS2 for building).  Is that the problem?

No, Dr. Memory ships with the symsrv.dll library.  But trying the standalone symchk is a simple standalone way to test whether the machine is able to connect to the Microsoft symbol server and download symbols.  symchk.exe comes with the Debugging Tools for Windows.

 

On Thursday, 8 April 2021 at 15:42:58 UTC+1 Derek wrote:

Symbol fetching has failed in a few instances as documented here: https://github.com/DynamoRIO/drmemory/issues/2232

Unfortunately we have not been able to reproduce it and it is not clear what the problem is.

Does running symchk directly to download work, as asked in the issue?  E.g., though the paths need adjustment:

c:\Program Files (x86)\Windows Kits\8.0\Debuggers\x86\symchk.exe /v /od /os /ot /ov /ob c:\WINDOWS\system32\ntdll.dll /s 'srv*C:\Users\name\AppData\Roaming\Dr. Memory\symcache\symbols*http://msdl.microsoft.com/download/symbols'

On Thu, Apr 8, 2021 at 6:38 AM Mike Moreton <mike.mo...@gmail.com> wrote:

We're getting a problem with fetching symbols when running drmemory.  First of all we get the message:

System call information is missing for this operating system: WinVer=105;Rel=1809;Build=17763;Edition=ServerDatacenter.

and then it appears to try and fetch symbols itself, but that hangs until the job we're running times out after two hours.

Any ideas?

--

---
You received this message because you are subscribed to the Google Groups "Dr. Memory Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email to drmemory-user...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/drmemory-users/d66eacb0-4827-4d82-bb37-8323e318a20dn%40googlegroups.com.

--

---
You received this message because you are subscribed to the Google Groups "Dr. Memory Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email to drmemory-user...@googlegroups.com.

To view this discussion on the web visit https://groups.google.com/d/msgid/drmemory-users/b1314332-12f0-4de0-9efc-5b88d49e25c6n%40googlegroups.com.