[Mono-list] System.Threading.Timer issue in v2.6.7 asp.net

[Aldo Prinzi]

Hi all,
We have an ASP.NET application that runs in production using v2.6.4
We don't have any issue whit that version and everithing is good.

Our sw runs on Linux Slackware 13 @ 64 bit (2.6.29.6)
Apache 2.2.15

We have a virtual machine that mirror our server and we have tried to 
upgrade it to the new 2.6.7 (mono and xsp, no GUI)
Now, sometimes -really randomic- when we refresh the request to our 
dynamic content, we experience the following issue:
====================================
   Key 'System.Threading.Timer' already exists in list.
====================================
at System.Collections.SortedList.PutImpl (System.Object key, 
System.Object value, Boolean overwrite) [0x00000] in <filename unknown>:0
at System.Collections.SortedList.Add (System.Object key, System.Object 
value) [0x00000] in <filename unknown>:0
at System.Threading.Timer+Scheduler.Add (System.Threading.Timer timer) 
[0x00000] in <filename unknown>:0
at System.Threading.Timer+Scheduler.Change (System.Threading.Timer 
timer, Int64 new_next_run) [0x00000] in <filename unknown>:0
at System.Threading.Timer.Change (Int64 dueTime, Int64 period, Boolean 
first) [0x00000] in <filename unknown>:0
at System.Threading.Timer.Change (Int64 dueTime, Int64 period) [0x00000] 
in <filename unknown>:0
at (wrapper remoting-invoke-with-check) System.Threading.Timer:Change 
(long,long)
at System.Web.Caching.Cache.Get (System.String key) [0x00000] in 
<filename unknown>:0
---------------------------------------------------------------------------------------------------------------------------------
We don't use any "timer" then we have stopped further tests.
Can anyone knows what this can be?

Thank you in advance.
Aldo Prinzi

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"If you are thinking one year ahead, sow seed.
If you are thinking ten years ahead, plant a tree.
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