Random error on asp.net app

Hi,
I get the following random error... on a asp.net 2.0 aplication.. running at
a hosting company (locally no issues).
It seems like this happens only when pageOutputCache is enabled and when the
app is running on a subDirectory (not root).

Some others that has the same issue.
http://communityserver.org/forums/t/480292.aspx
http://www.dotnetnuke.com/DotNetNuke...s/Default.aspx
http://communityserver.org/forums/t/472075.aspx


Error---------------------------------------------------------------------------
mscorlib
<br>Message: Request for the permission of type
'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0,
Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
<br>Stack trace: at System.Security.CodeAccessSecurityEngine.Check(Obj ect
demand, StackCrawlMark& stackMark, Boolean isPermSet)
at System.Security.CodeAccessPermission.Demand()
at System.IO.Path.GetFullPath(String path)
at System.Web.Util.FileUtil.IsSuspiciousPhysicalPath( String physicalPath,
Boolean& pathTooLong)
at System.Web.Util.FileUtil.IsSuspiciousPhysicalPath( String physicalPath)
at System.Web.CachedPathData.GetConfigPathData(String configPath)
at System.Web.CachedPathData.GetConfigPathData(String configPath)
at System.Web.UI.Page.InitOutputCache(OutputCachePara meters
cacheSettings)
at ASP.default_aspx.FrameworkInitialize() in
d:\Inetpub\domainid109410\main\Default.aspx.cs:lin e 912309
at System.Web.UI.Page.ProcessRequest(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest()
at System.Web.UI.Page.ProcessRequestWithNoAssert(Http Context context)
at System.Web.UI.Page.ProcessRequest(HttpContext context)
at ASP.default_aspx.ProcessRequest(HttpContext context) in
c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temp orary ASP.NET
Files\main\f93c3771\1586979\App_Web_-ekklo09.4.cs:line 0
at
System.Web.HttpApplication.CallHandlerExecutionSte
p.System.Web.HttpApplication.IExecutionStep.Execut e()
at System.Web.HttpApplication.ExecuteStep(IExecutionS tep step, Boolean&
completedSynchronously)


Thanks
Nalaka

Hi Nalaka,

Regarding on this "Code access security exception in ASP.NET 2.0
application when using output cache", I did ever found some former thread
discussing on this, also I've checked our internal database and found some
similar records.

For this problem, it is quite hard to troubleshoot especially when the host
environment is on a public web hoster. Mostly, the problem is due to that
the ASP.NET runtime occasionally demand a CAS permission which is beyound
the application's CAS policy configuration(configured through <trust
level="..." /in web.config file). And for public web hoster, it normally
will apply a very low and restricted CAS policy for hosted web
applications. And based on my research in former issues, ASP.NET 2.0 has a
new setting "processRequestInApplicationTrust" by providing an option to
execute the entire page processing code path in the application trust,
including the internal page processing code path and the associated ASP.NET
control
processing. This is configured with the processRequestInApplicationTrust
attribute in the <system.web><trustconfiguration section, and is enabled
by default. This setting may cause some of your code to break when it is
registered in the GAC due to the assumption that it will execute with
unrestricted permissions.

So for testing, you can try turning off this attribute to see whether it
helps:

<trust processRequestInApplicationTrust="false" />

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead



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Hi Nalaka,

Any progress on this issue or does the suggestion in my last reply helps
you some? Due to the complexity of this issue, if the problem you met
doesn't quite fit the scenario I mentioned preiviously, for further
thorough troubleshooting, I suggest you(or suggest your service host
provider) to contact CSS and continue work on this

http://msdn.microsoft.com/subscripti...t/default.aspx

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead


This posting is provided "AS IS" with no warranties, and confers no rights.