coreutils 5.97; mkdir -p; mkdir: cannot create directory `name': File exists
Rolf Campbell
thats.unpossible@gmail.com
Tue Aug 22 22:15:00 GMT 2006
Eric Blake wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> From: Rolf Campbell
>> I believe there is a race-condition in "mkdir -p". Specifically, if the
>> directory does not exist *yet* when stat is called on line #98 of
>> "coreutils-5.97/lib/mkdir-p.c", but the directory *does* exist by the
>> time line #190 of the same file calls mkdir(), then the program will
>> error with "File exists".
>>
>> I hit this occasionally when doing parallel builds.
>
> Are you sure you have the right line numbers? The cygwin version of
> lib/mkdir-p.c is patched in coreutils-5.97-1; but even the upstream
> version takes great pains that this is not a race - yes, the directory can
> be created between the time it is statted and the mkdir, but the mkdir
> takes this into account by trying to chdir into the directory on failure,
> before giving up with an error message to the user that the file exists.
>
> I will need a stronger argument to believe that there is a race, in which
> case, the upstream maintainers would probably like to hear it too.
Oops, after closer inspection, the problem was with my makefile. *sigh*
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Problem reports: http://cygwin.com/problems.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/
More information about the Cygwin
mailing list