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SubjectSCSI st tape wrong minor in 2.5.40 with devfs
Hi,

I see a problem with recent 2.5 kernels and SCSI st and devfs.

As you can see from the output down under the minors are off by 4.

I rechecked that 9,128 (as described in Documentation/devices.txt)
would be correct for nst0 by calling mknod and *tata* the backup
would be running fine again (at least mt is working again - not
running a backup...).

So minors should be the number of the tape device and not
the number of the target counting from 0.


This is what it used to be:

bz@megablast:/dev/scsi/host0/bus0/target5/lun0> ls -l
total 0
crw-r----- 1 root root 21, 3 Jan 1 1970 generic
crw-rw-rw- 1 root root 9, 0 Jan 1 1970 mt
crw-rw-rw- 1 root root 9, 96 Jan 1 1970 mta
crw-rw-rw- 1 root root 9, 224 Jan 1 1970 mtan
crw-rw-rw- 1 root root 9, 32 Jan 1 1970 mtl
crw-rw-rw- 1 root root 9, 160 Jan 1 1970 mtln
crw-rw-rw- 1 root root 9, 64 Jan 1 1970 mtm
crw-rw-rw- 1 root root 9, 192 Jan 1 1970 mtmn
crw-rw-rw- 1 root root 9, 128 Jan 1 1970 mtn
bz@megablast:/> uname -a
Linux megablast 2.5.38 #57 SMP Wed Sep 25 17:38:37 UTC 2002 i686 unknown
[this was bk checkout from 20020923-211332 UTC]


this is what I get with latest 2.5.40-bk:

/dev/{nst0 resp nst4}: No such device or address
bz@megablast:/dev/scsi/host0/bus0/target5/lun0> ls -l
total 0
crw-r----- 1 root root 21, 3 Jan 1 1970 generic
crw-rw-rw- 1 root root 9, 4 Jan 1 1970 mt
crw-rw-rw- 1 root root 9, 100 Jan 1 1970 mta
crw-rw-rw- 1 root root 9, 228 Jan 1 1970 mtan
crw-rw-rw- 1 root root 9, 36 Jan 1 1970 mtl
crw-rw-rw- 1 root root 9, 164 Jan 1 1970 mtln
crw-rw-rw- 1 root root 9, 68 Jan 1 1970 mtm
crw-rw-rw- 1 root root 9, 196 Jan 1 1970 mtmn
crw-rw-rw- 1 root root 9, 132 Jan 1 1970 mtn
bz@megablast:/dev/scsi/host0/bus0/target5/lun0> uname -a
Linux megablast 2.5.40 #77 SMP Sat Oct 5 07:43:57 UTC 2002 i686 unknown
[bk-2.5 checkout, 20021005-060333 UTC]
--
Bjoern A. Zeeb bzeeb at Zabbadoz dot NeT
56 69 73 69 74 http://www.zabbadoz.net/

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