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Date: Tue, 25 Apr 2006 06:29:32 -0600
From: Eric Blake <ebb9 AT byu DOT net>
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Subject: Re: Call for testing Cygwin snapshot
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According to Charles Wilson on 4/24/2006 10:42 PM:
> Corinna Vinschen wrote:
> 
>> - Reintroducing the dirent member d_ino.  1.5.20 tries hard to return a
>>   useful d_ino value, which is supposed to be also the same as st_ino as
>>   returned by stat(2) in all cases, regardless of the obstacles to do
>>   this on Windows.  Do you have strange file systems like HPFS or
>> ClearCase?
> 
> I'll take a look at this w.r.t clearcase.  How exactly should I test --
> what am I looking for?  Just a little app that compares dirent.d_ino and
>  stat.st_ino for a specified file on the strange filesystem?

Another set of tests is to use the experimental coreutils-5.94-5.
Doing/bin/pwd inside a directory on the strange filesystem stress tests
d_ino (I already know that on ClearCase (MVFS), /bin/pwd fails inside of
versioned directories, such as ccase/foo@@/main/, since ClearCase refuses
to list foo@@ in a readdir of ccase, but that is not cygwin's bug).  And
comparing '\ls -ia' against '\ls -ipa' will show whether d_ino agrees with
st_ino.

> 
> Do I only care about the lower 32 bits, or all 64?

On cygwin, ino_t is advertised as 64 bits; if all 64 don't match, then
cygwin needs to be patched.

- --
Life is short - so eat dessert first!

Eric Blake             ebb9 AT byu DOT net
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