Messages in this thread | | | Date | Thu, 5 Feb 2004 21:41:09 +0100 | From | Jens Axboe <> | Subject | Re: 2.6.0, cdrom still showing directories after being erased |
| |
On Thu, Feb 05 2004, Pavel Machek wrote: > Hi! > > > > I believe he meant to write he umounted it. > > > The problem is that there is still some data left in CDRW's cache and it > > > needs to be emptied. That happens when CDRW is ejected and reinserted > > > (that is why windows burning software ie. Nero wants to eject the CDR/RW > > > when it gets written or erased). > > > Maybe kernel could flush the buffers/caches or whatever is there when > > > CDROM gets mounted. But im afraid about compatibility with broken drives > > > such as LG. > > > > There's no command to invalidate read cache, you are probably thinking > > of the SYNC_CACHE command to flush dirty data to media (which is what LG > > fucked up). > > > > IMO, it's a user problem. > > Does not look like so. > > mount > umount > cdrecord -blank > mount > see old data > > That looks pretty bad. If there's no other solution, we might just > document it, but...
Nonsense. Even if the above was what the user did (I believe he didn't umount the device before blanking it), then it'd be a hardware "bug". It's common to require an eject to completely clear the cache.
-- Jens Axboe
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |