fstat st_size on open files on Parallels filesystem is wrong

[Jonathan Lennox]

On Tuesday, November 3 2015, "Corinna Vinschen" wrote to "cygwin@cygwin.com" saying:

> Btw., there's more than one problem here.  The fact that all drives
> have the same volume name *and* a serial number of 0 leads to all
> drives being identified as the same drive.  I have to add some code
> creating a reproducible serial number from scratch if the original
> serial number is 0, but for testing, I didn't implement this yet.

I've confirmed that this is the case for all the prlsf drives I have (drives
U:-Z:).

> Talking about testing.  I created a test DLL which provides a lot
> of output when stracing the calls.  I'll send you a private mail
> with the URL to this DLL in a minute.  Please install it, and under
> that DLL, run
> 
>   $ strace -o stat.trace ./stat-size-test.exe /cygdrive/y/foo
> 
> I'll need to have a look into that strace to (hopefully) see what's
> going wrong.

Attached.

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-- 
Jonathan Lennox
lennox@cs.columbia.edu

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