acd0: FAILURE - READ_BIG MEDIUM ERROR

When I tried to read DVD-R media (written on the same current box by
cdrecord-ProDVD), I got this message at mounting:

-----
acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x15 ascq=0x00 error=0
acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x15 ascq=0x00 error=0
cd9660: RockRidge Extension
-----

Is this harmless or not?  I can copy a file from this DVD-R without
problem.


And, this DVD-R has a large file (3GB), and ls(1) (maybe stat(2))
issues an error like this:

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% ls -l /cdrom/0
ls: foo.tgz: Value too large to be stored in data type
-----

With inserting printf() at kern/vfs_vnops.c:724, I got following
result.  Is this related to above READ_BIG error?  Or simply something
wrong in other VFS (or CD9660?) layer?

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line:
	printf("kuri: EOVERFLOW: va_size=%llu, OFF_MAX=%llu\n", vap->va_size, OFF_MAX);
output:
	kuri: EOVERFLOW: va_size=18446744072600323698, OFF_MAX=9223372036854775807
-----


-- 
Jun Kuriyama <kuriyama_at_imgsrc.co.jp> // IMG SRC, Inc.
             <kuriyama_at_FreeBSD.org> // FreeBSD Project