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-rw-r--r--sys/dev/ata/atapi-cd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/dev/ata/atapi-cd.c b/sys/dev/ata/atapi-cd.c
index 1a3634d3ea3a..d0e8c3910ef6 100644
--- a/sys/dev/ata/atapi-cd.c
+++ b/sys/dev/ata/atapi-cd.c
@@ -282,7 +282,7 @@ acd_make_dev(struct acd_softc *cdp)
make_dev_alias(dev, "acd%da", cdp->lun);
make_dev_alias(dev, "acd%dc", cdp->lun);
dev->si_drv1 = cdp;
- dev->si_iosize_max = 252 * DEV_BSIZE;
+ dev->si_iosize_max = 126 * DEV_BSIZE;
dev->si_bsize_phys = 2048; /* XXX SOS */
cdp->dev = dev;
cdp->device->flags |= ATA_D_MEDIA_CHANGED;