Hello
It seems that the smbfs driver does not handle correctly large files
(>2GB). The thing is that statting them is correct (for example, the
st_size field is correctly set), but as soon as you try to make a lseek
with an offset larget than INT_MAX, you get a EINVAL error.
Note: This is not coming out of the remote samba server (Tested with
under windows, and it is working fine).
I'm using a 2.6.10 kernel without external patches. I parsed the 2.6.11
changelog to see if this problem has been fixed, but I didn't found
anything related. If this has already been discussed, just let me
know ;-)
You can reproduce this bug with this little program:
-8<------------------------------------------
/* Enable large file support for x86 */
#define _FILE_OFFSET_BITS 64
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <limits.h>
#include <stdio.h>
int main(int argc, char **argv)
{
int fd = open(argv[1], O_RDONLY);
if(fd == -1)
perror("open");
struct stat st;
fstat(fd, &st);
printf("filesize: %llu\n", st.st_size);
/* Go at end... */
if(lseek(fd, 0, SEEK_END) == (off_t)(-1))
perror("lseek");
close(fd);
return 0;
}
-8<------------------------------------------
Best Regards,
Mathieu Fluhr
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