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RE: Permission Denied error while killing Gmake on Windows


From: thutt
Subject: RE: Permission Denied error while killing Gmake on Windows
Date: Tue, 15 Mar 2016 11:44:28 -0700

Anuj Shroff writes:
 > Hello Mr Hutt
 >
 > The reproduction steps you have mentioned for the issue are precisely what 
 > we are doing.
 >
 > I am monitoring killing gmake using ProcessExplorer. I can see that
 > the processes are killed as soon as we issue CTRL_C. However, it is
 > a bit difficult to deduce whether the subprocesses are killed
 > before the files are removed or not. I am not sure how to do such
 > fine-grained debugging.  Would you happen to have a suggestion for
 > this. I will be happy to try it out.
 >
 > Also, we tried to track the obj files with ProcMon. Running ProcMon
 > in the background slows the gmake process significantly, due to
 > which we cannot reproduce the issue.
 >
 > Please let me know if you have any pointers.

 I don't think you can guarantee that the asynchronous subprocesses
 are killed off at the same time as the parent.

 Rather than trying to prove this using Make, I'd suggest writing a
 bespoke program that spawns asynchronous processes, which create
 files with known pathnames and leave them open.  Kill the parent and
 try to remove the files that the subordinate process created.

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