Messages in this thread |  | | Date | Mon, 2 Oct 2000 18:58:08 +0200 | From | Jens Axboe <> | Subject | Re: PROBLEM: 2.2.17 hangs when attempting to mount atapi cdrom Teac CD-540E |
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On Mon, Oct 02 2000, Serge Gavrilov wrote: > [1.] 2.2.17 hangs when attempting to mount atapi cdrom Teac CD-540E > > [2.] My kernel was compiled with flags > > CONFIG_BLK_DEV_IDEPCI=y > CONFIG_BLK_DEV_IDEDMA=y > CONFIG_IDEDMA_AUTO=y > > My cdrom Teac CD-540E supports UDMA mode2. > When I try to mount /cdrom kernel hangs. > If I invoke > > hdparm -d0 /dev/hdc > > and invoke "mount /cdrom" after, then everything is OK.
What IDE chipset? Note that not all of them support DMA with ATAPI at the moment. And also note that even if your CD-ROM claims to support UDMA, it doesn't necessarily mean that it does in reality...
-- * Jens Axboe <axboe@suse.de> * SuSE Labs - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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