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FAST IO DISALLOWED |
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SystemPro 
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Joined: 26 April 2007 Location: Germany Online Status: Offline Posts: 504 |
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 Topic: FAST IO DISALLOWEDPosted: 28 September 2007 at 5:30am |
This was the first simple and fast explaination, no more who are able to make descriptions like that?
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molotov
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Joined: 04 October 2006 Online Status: Offline Posts: 17492 |
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Posted: 13 February 2007 at 8:47am |
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...and since this latest post doesn't really seem to be related to Process Monitor, perhaps at the discretion of a moderator it could be moved to the Development forum?
Edited by molotov - 15 February 2007 at 5:55am |
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molotov
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Joined: 04 October 2006 Online Status: Offline Posts: 17492 |
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Posted: 13 February 2007 at 8:46am |
Given the above, and the information you provided, it seems that perhaps a module that is required by the DLL you wish to load is not available. Check the module in question with Dependency Walker, and / or profile your application with Dependency Walker, and determine if the load is failing because a module that is needed cannot be found.
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Sailesh
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Joined: 13 February 2007 Location: India Online Status: Offline Posts: 1 |
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Posted: 13 February 2007 at 8:22am |
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Well I am unable to load a dll in vista and when I checked with procmon, for QueryOpen operation with any dll, its returning "Fast IO Disallowed".
The return result for loading my dll is "One or more arguments invalid" with LoadLibrary function. When I am loading with LoadLibraryEx("Dll",NULL, DONT_RESOLVE_DLL_REFERENCES), loading is success. BUt no use. Please help me out in this... |
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bytehd
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Joined: 18 March 2006 Online Status: Offline Posts: 23 |
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Posted: 02 January 2007 at 9:24pm |
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Seems like an awful lot of unnecessary overhead.
Welcome to Microsoft. making the easy difficult. |
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dick.dunbar
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Joined: 28 December 2006 Location: United States Online Status: Offline Posts: 1 |
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Posted: 28 December 2006 at 2:26pm |
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cendrars: Nice hint. I also am getting a _ton_ of these responses in my output for processes like IE7. The first question that comes to mind:
Is this just a legacy code issue? If it's coming from Windows libraries, why aren't they setting global switches to spin the I/O requests in a way that is acceptable. Seems like an awful lot of unnecessary overhead. |
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cendrars
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Joined: 02 August 2006 Location: United States Online Status: Offline Posts: 11 |
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Posted: 04 December 2006 at 2:46pm |
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Fast IO = A means of reading or writing a cached file without going through the work of generating I/O request packet (IRP). What is process is labeled as being disallowed? |
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molotov
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Joined: 04 October 2006 Online Status: Offline Posts: 17492 |
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Posted: 21 November 2006 at 2:46pm |
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So, in short
Akin to my suspicion, if this is truly what FAST IO DISALLOWED means. |
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josep lluis
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Joined: 01 October 2005 Location: Spain Online Status: Offline Posts: 38 |
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Posted: 21 November 2006 at 2:30pm |
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Hi all,i wrote(so from what i understand danberrys machine does not have suficient virtual memory for process moniter to work,solution:create a space on hard drive for this purpuse?.I have seen a solution to this on the process moniter post site.Correct me if i am wrong about this).I thought that danberry was having trouble with process moniter |
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molotov
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Joined: 04 October 2006 Online Status: Offline Posts: 17492 |
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Posted: 21 November 2006 at 8:23am |
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Right. That was directed at josep lluis, sorry. But are you having the problem that josep lluis described ("danberrys machine does not have suficient virtual memory for process moniter to work")? I was under the impression that Process Monitor was working for you, but you were looking for an explanation for "FAST IO DISALLOWED" (which you haven't quite gotten, and which I'm not qualified to answer especially in this venue though I have my suspicions as to the meaning). I was secretly (not-so, now) hoping someone else would dive into it for the benefit of all, but since this hadn't happened I tossed in a pointer to the OSR article that should be a good discussion on Fast I/O and that would hopefully provide enough insight as to what's going on that while it doesn't specifically mention "Fast IO Disallowed" it would at least shed a bit of light on Fast I/O and hopefully get one thinking about why it might be "disallowed". Perhaps I should have kept my mouth closed? |
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.I have done a google search on:FAST IO DISALLOWED .I found this site with lots of information on this subject.