Re: Filesystem size limit?

[Matthew Dillon]

:>
:> ie: there is a signed 32 bit sector count limit.  2^31 == 1TB.  It shouldn't
:> be too hard to get it to create 2^32 bit (2TB) filesystem though.  I'd expect
:> there to be more problems that this to bite you though. :-(
:>
:> 2^31 also happens to be the mmap() file offset limit FWIW.

    No it isn't.  mmap() (under FreeBSD) takes an off_t for the file offset,
    so the file offset limit is 2^63.  The size of your map is limited to
    the size of the user address space minus things already mapped -- 
    around 3 GB on IA32.

                                        -Matt
                                        Matthew Dillon 
                                        <[EMAIL PROTECTED]>


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