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Citrix Server Blue Screen 3 times a day.

By cocob2 ·
We run a Citrix Metaframe 1.8/Win2k Server on a Dell Poweredge 64000 with Quad Xeon processors and 4 GB RAM. It blue screens 2-3 times per day with the following:

SESSION_HAS_VALID_POOL_ON_EXIT (0xAB), followed by three memory addresses.

The Blue Screen always happens around morning, lunch, or quitting time, when many users are logging in and out.

We have applied all service packs and patches, and everything short of upgrading to Metaframe XP. Spoke to Microsoft, and they stated the cdm.sys file is the cause, but offered no solution. We tried replacing cdm.sys from backup and pulling it from previous service packs with no result.

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Citrix Server Blue Screen 3 times a day.

by dwilcox22 In reply to Citrix Server Blue Screen ...

Have you applied all of the hot fixes available from Citrix? If you have contact Dell. You may have a faulty memory chip. This is what I believe the problem my be.
I am more familiar with NT/MetaFrame 1.8. If service pack 6 is applied there is a known problem with the Citrix browser. There is a hotfix available for that problem.

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Citrix Server Blue Screen 3 times a day.

by cocob2 In reply to Citrix Server Blue Screen ...

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Citrix Server Blue Screen 3 times a day.

by TimTheToolMan In reply to Citrix Server Blue Screen ...

Hi,

Here is a rundown on what the BSOD means...
Those three memory address are probably actually references to the memory leaks as described below.

SESSION_HAS_VALID_POOL_ON_EXIT (0xAB)
1 - session ID
2 - number of paged pool bytes that areleaking
3 - number of nonpaged pool bytes that are leaking
4 - total number of paged and nonpaged allocations that are leaking.
paged allocations are in the upper half of this word,
nonpaged allocations are in the lower half of this word.

Caused by a session driver not freeing its pool allocations prior to a
session unload. This happens only on Terminal Server systems and usually
indicates a bug in win32k.sys, atmfd.dll, rdpdd.dll or a video driver.

So... You could try updating yourvideo driver - you may not have tried that one.

I assume you're actually on Win2K advanced server? For four processors... So you dont have anywhere to move with regards to upgrading the OS.

You could try MetaframeXP but since its a Terminal Services component thats failing (not the Citrix layer) then it may not help.

A workaround may be to increase the pool size and reboot each night. I haven't yet found a way to do this but I'm hoping it can be manipulated.
I'll keep looking for a bit and see what I can dig up...

And also check out this Microsoft article on how to track down the exact problem in detail...

http://support.microsoft.com/default.aspx?scid=kb;EN-US;q244617

(remove spaces from above URL)

Cheers,
Tim.

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Citrix Server Blue Screen 3 times a day.

by cocob2 In reply to Citrix Server Blue Screen ...

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Citrix Server Blue Screen 3 times a day.

by cocob2 In reply to Citrix Server Blue Screen ...

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