Hi.
While setting up a new machine with Windows 2000 Professional, I decided to do some testing.
I installed the cvs version of 5.2 from 9/22/04. The following worked when I did a full walk of .1:
-fresh W2k Pro with SP1 -after installing SP4 -after running Windows update, scanned for updates and let it install IE6
So up to that point, it seemed to work fine.
After I installed the following, the problem I reported started:
-ran Windows update, scanned for updates and let it install IE6 cummulative update plus a bunch of hotfixes (critical updates & service packs). As listed in the event log:
Q828026 KB840315 KB842526 KB841873 KB841872 KB839643 KB839645 KB837001 KB828741 KB835732 KB329115 KB828035 KB825119 KB826232 KB824105 KB823182 KB823559
I do not know which patch broke it, but at least I can re-produce it. I will have to do some more testing.
Before this last test, two out of four machines were fully patched based on Windows update. The other two only had a select list of critical updates applied including the latest IE6 patch.
Looking through the descriptions of the hotfixes, nothing obvious jumps out at me as to what is causing the problem.
Alex
[EMAIL PROTECTED] wrote:
Alex, I think the problem could use some illumination. ######################## Hi, net-snmp-users!
Some of the developers are busy preparing a 5.2.pre2 release.
One area that is getting attention is registering the Agent and Trap Handler as Windows Services. This will help using these programs a little easier in the Win32 environment.
During testing, Alex noticed that the 5.2.pre1+ Agent would use an inordinate amount of CPU time during "walk" through the network related MIB objects.
Alex notes the problem did not occur with the 5.1.2 Agent.
I'm just posting this to the mail list to archive the discussion. ########################
Alex, I would be happy to be proven wrong (in this case!), but it seems that the problem is not the net-snmp agent, rather an interaction between Microsoft IP Helper library and the network adapters. I believe if you were to debug the net-snmp agent, you will find the "hang" somewhere in a call to the IP Helper Library.
Have you tried a debugging build to produce symbol map, etc. ?
Best Regards, -Mike
From: Alex Burger <[EMAIL PROTECTED]> Date: 2004/09/22 Wed PM 10:41:17 EDT To: [EMAIL PROTECTED] CC: [EMAIL PROTECTED] Subject: Re: patches are applied
Hi again.
I just tried on yet another machine: my Windows 2000 Server that is running inside a VMWare on my Linux box (AMD Athalon 1.4Ghz). I get the exact same problem.
I have always installed to c or d:\program files\net-snmp. I installed to c:\usr this time to be safe, and used public as a rw community string and the same problem.. Same thing with -v 1 and -v 2.
The spot that it dies from what I can see is the entries in the ARP table. I just did another test on my main machine and found if I disable my LAN adapter, it dies at this location instead:
IF-MIB::ifOutDiscards.1 = Counter32: 0 IF-MIB::ifOutErrors.1 = Counter32: 0 IF-MIB::ifOutQLen.1 = Gauge32: 0 IF-MIB::ifSpecific.1 = OID: SNMPv2-SMI::zeroDotZero Timeout: No Response from localhost
That was from doing a walk on localhost, which is always available.
Maybe you could try that. 5.1.2 works fine. It returns nothing (which is correct), but it doesn't timeout or spike to 99%.
One thing in common between my two work machines I tested with is that they both had the Cisco VPN client installed. It's not running, but there is a LAN adapter for the VPN client.
Something in common between my home machine and my VMWare Windows is that they have both had IP addresses assigned to a network card that was removed without being uninstalled. A new network card has been installed and the same IP address assigned. Inside the registry it has both adapters still, and when I change the IP info it always says that I already got one configured with that IP address, even though I really don't. You can't uninstall a network card that does not exist, so I'm stuck with it.
It probably has nothing to do with it, but who knows. I mentioned similarities between my two home and my two work computers, but there is not anything in common between all four... I don't have this problem with 5.1.2.. I just tested 5.1.2 in my VMWare Windows and it worked fine.
You should try multiple times. One time during testing it seemed to work, and then the next time it didn't. It fails 100% of the time on my now, but before I did have a couple successful ones.
Alex
[EMAIL PROTECTED] wrote:
I'm using your binary. I've tested only on the machine that I build, and it has one Gigabyte of RAM. I'll try again on a Windows 98 machine, and an XP box.
-Mike
From: Alex Burger <[EMAIL PROTECTED]> Date: 2004/09/22 Wed PM 09:32:58 EDT To: [EMAIL PROTECTED] CC: [EMAIL PROTECTED] Subject: Re: patches are applied
I'm using 6.0 for the building, like usual. Nothing else has really changed on my system except for some MS updates. Did you try my binary or are you only testing your compiled code?
Alex
[EMAIL PROTECTED] wrote:
HI, Alex. Are you building with MSVC++ 6.0 or 7.0 ? I use 6.0 with out problem...
From: Alex Burger <[EMAIL PROTECTED]> Date: 2004/09/22 Wed PM 06:00:53 EDT To: [EMAIL PROTECTED], [EMAIL PROTECTED] Subject: Re: patches are applied
Hi!
As soon as the public CVS is up to date with the regular one, I will build a new binary. It probably will be in a few hours.
Did either of you try the last binary I made? When using that binary, I can reproduce the snmpwalk problem on three machines. The only thing in common between the machines I can think of is that they are all Win2000 (one server, two prof) with SP4.
Try doing a walk of .1 and see if it does. I've been testing with a snmp v1 walk.
Alex
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