There is no way to avoid the error, because it shouldn't be
happening in the first place.
The code is calling ReqQueryValueEx(HKEY_PERFORMANCE_DATA,
PERF_PROCESS_LIST ), the function is returning success, but the
data appears to be partly invalid - it has the correct starting
bytes, but there is a 0 in the field that shows the size of one of
the counters. (the first one that we check)
The message that you are seeing is there just so that if some
future version of Windows changes the structure of the performance
data in a way that violates some assumption in the code, we get a
message rather than a random crash. The code is checking to see
if sizeof(perf_counter) == 8 on the current platform. If
this fails, I would expect it to fail all of the time on a given
version of Windows.
Please let us know if you see this happen again, but I think it's
very unlikely that its a bug in the Condor code and very very
unlikely that it's a configuration problem. It might be a bad
DIMM, or a Windows bug, but I still think that you should check for
a rootkit type virus - a virus attempting to edit itself out of the
process list might cause this symptom.
-tj
On 7/12/2011 11:30 AM, kschwarz@xxxxxxxxxxxxxx wrote:
TJ,
The second explanation (virus) is
an
unlikely possibility because our company installs an antivirus
software
in all desktops but could happen if the virus definition does
not have
its definition yet.
Is there any way to avoid this
error?
We do not have many Windows 7 machines yet, but it will be a
problem when
more win7 desktops will be deployed in the company and an end
user, that
does not have rights to start the Condor service, needs to run
jobs.
Thanks,
Klaus
There's nothing much you can do about this
unfortunately.
This is a truly bizarre thing to be intermittent.
The message is a bit misleading, you are not expected to have
a key at
that point in the registry. Its just
that if you DO have a key there, it's value should be 0.
There's a Windows API that we query that returns a structure
and
another API that returns some information
describing the format of that structure. That second API is
returning
unexpected values for the formatting
information.
The thing is, that formatting information isn't allowed to
change at runtime.
In practice it changes between
versions of Windows, but doesn't change within a version. So
the
error you are seeing simply CANT be
intermittent.
I can think of only 2 possible explanations.
1) Something in Condor_master is randomly overwriting memory
and
it happened to hit this formatting
information - unlikely.
2) You have a virus that is trying to hide itself and the code
isn't quite
right.
-tj
On 7/12/2011 10:05 AM, kschwarz@xxxxxxxxxxxxxx
wrote:
HI,
When Condor started this morning on my Win 7 Desktop, it
aborted and logged
the following error message in the MasterLog file:
07/12/11 07:01:50 DaemonCore: command socket at
<10.3.29.182:55868>
07/12/11 07:01:50 DaemonCore: private command socket at
<10.3.29.182:55868>
07/12/11 07:01:50 Setting maximum accepts per cycle 4.
07/12/11 07:01:51 Started DaemonCore process
"C:\condor/bin/condor_schedd.exe",
pid and pgroup = 3008
07/12/11 07:01:52 Started DaemonCore process
"C:\condor/bin/condor_startd.exe",
pid and pgroup = 2268
07/12/11 07:01:55 Started DaemonCore process
"C:\condor/bin/condor_kbdd.exe",
pid and pgroup = 3152
07/12/11 07:01:55 ERROR "Unexpected performance counter size
for total
CPU: 0 (expected 8); Registry key
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PerfProc\Performance
must
have 'Disable Performance Counters' value of 0 or no such
value"
at line 2648 in file
c:\condor\execute\dir_4052\userdir\src\condor_procapi\procapi.cpp
07/12/11 07:01:55 Sent SIGKILL to KBDD (pid 3152) and all
its children.
07/12/11 07:01:55 Sent SIGKILL to SCHEDD (pid 3008) and all
its children.
07/12/11 07:01:55 Sent SIGKILL to STARTD (pid 2268) and all
its children.
There isn´t an entry Disable
Performance Counters
in this registry path.
I am using version
C:\Users\kschwarz>condor_version
$CondorVersion: 7.6.0 Apr 16 2011 BuildID: 327460 $
$CondorPlatform: x86_winnt_5.1 $
C:\Users\kschwarz>
Trying to start it again, the error disappeared and Condor is
running well.
What should I do to prevent this to happening again?
Thanks,
Klaus
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