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On Sat, 5 Oct 2002, Bjoern A. Zeeb wrote:
> Hi,
>
> I see a problem with recent 2.5 kernels and SCSI st and devfs.
>
You probably can see it also with driverfs :-(
> As you can see from the output down under the minors are off by 4.
>
The device registration was moved outside the st_dev_arr_lock spinlock but
it seems that I was a bit careless, after all. The driverfs/devicefs
registration loop contains the following lines:
tpnt->driverfs_dev_r[mode].driver_data =
(void *)(long)__mkdev(MAJOR_NR, i + (mode << 5));
tpnt->de_r[mode] =
devfs_register (SDp->de, name, DEVFS_FL_DEFAULT,
MAJOR_NR, i + (mode << 5),
S_IFCHR | S_IRUGO | S_IWUGO,
(two of each type)
In the original location i did contain the device number but here it
contains 4 (from the latest loop). The fix seems to be to replace i by
dev_num but I have not yet tested it.
Thanks for reporting the bug.
--
Kai
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