Re: [gmediaserver-devel] File size limit

[Jan Ceuleers]

Wayne Stallwood wrote:
> On Tue, 2007-07-03 at 20:20 +0200, Jan Ceuleers wrote:
>   
> > However, if I strace the process, the stat64() call actually returns zero:
> >
> > stat64("/home/storage/Test/Eragon-001.avi", {st_mode=S_IFREG|0644, 
> > st_size=2200526492, ...}) = 0
> >     
>
> Maybe I am being a bit daft here but isn't stat64 actually returning an exit 
> status of 0 there and a file size of 2200526492 bytes
>   
Absolutely correct. But if you check the source code, you'll see that 
the piece of code that generates the error message is only executed if 
the stat() call returns a negative value.

So: the source code contains a stat() call; the library appears to 
translate that into a stat64() call which returns zero; the library then 
presumably does some more checking and finds that the file is too large 
to be supported by the stat() call so it returns a negative value instead.

I have since changed the stat() call into a stat64 call myself (along 
with the necessary changes in variable declarations). This then causes 
the subsequent open() call to fail. Unfortunately there does not seem to 
be a 64-bit equivalent of the open() call, so I'm stuck.

Subsequent to my message I also found out that the block size of the 
ext3 filesystem might be relevant. The block size is 4K, so I would not 
expect this to be the reason for the failure.

Thanks, Jan