Messages in this thread |  | | From | "Cress, Andrew R" <> | Subject | RE: Wrong SCSI bus scanning | Date | Tue, 25 Sep 2001 12:10:34 -0700 |
| |
Jan,
The sym53c8xx and ncr53c8xx drivers depend on virtually the same chipsets, so there is some potential for confusion in detecting adapters that do/dont belong to each driver. This causes confusion for the corresponding drivers in NT also. Check the scan code in each driver.
Andy
-----Original Message----- From: Jan-Benedict Glaw [mailto:jbglaw@lug-owl.de] Sent: Monday, September 24, 2001 8:33 PM To: linux-kernel@vger.kernel.org Subject: Wrong SCSI bus scanning
Hi!
For me, SCSI bus # 2 gets double-assigned. Physical layout is currently:
Bus 0: AIC7xxx (U160 onboard) - ID0: IBM DDYS-T18350N Bus 1: AIC7xxx (2nd U160 onboard bus) - unused Bus 2: sym53c8xx ('875) - ID1: PLEXTOR CD-R PX-W1210S - ID2: PLEXTOR CD-ROM PX-40TS - ID3: PIONEER DVD-ROM DVD-305
Bus 3: ncr53c8xx ('810) - ID0: HP CD-Writer 6020 - ID1: PLASMON CDR4220
The U160 controller attaches to my boot disk, so it is compiled-in. Both other drivers are modules.
When I insert modules for busses #2 and #3, *both* of them get bus #2 assigned:
==> before additional modules: weiss-ich-doch-nicht:~# cdrecord -scanbus Cdrecord 1.10 (i686-pc-linux-gnu) Copyright (C) 1995-2001 Jörg Schilling Linux sg driver version: 3.1.20 Using libscg version 'schily-0.5' scsibus0: 0,0,0 0) 'IBM ' 'DDYS-T18350N ' 'S96H' Disk 0,1,0 1) * 0,2,0 2) * 0,3,0 3) * 0,4,0 4) * 0,5,0 5) * 0,6,0 6) * 0,7,0 7) *
==> after sym53c8xx: weiss-ich-doch-nicht:~# cdrecord -scanbus Cdrecord 1.10 (i686-pc-linux-gnu) Copyright (C) 1995-2001 Jörg Schilling Linux sg driver version: 3.1.20 Using libscg version 'schily-0.5' scsibus0: 0,0,0 0) 'IBM ' 'DDYS-T18350N ' 'S96H' Disk 0,1,0 1) * 0,2,0 2) * 0,3,0 3) * 0,4,0 4) * 0,5,0 5) * 0,6,0 6) * 0,7,0 7) * scsibus2: 2,0,0 200) * 2,1,0 201) 'PLEXTOR ' 'CD-R PX-W1210S' '1.02' Removable CD-ROM 2,2,0 202) 'PLEXTOR ' 'CD-ROM PX-40TS ' '1.12' Removable CD-ROM 2,3,0 203) 'PIONEER ' 'DVD-ROM DVD-305 ' '1.03' Removable CD-ROM 2,4,0 204) * 2,5,0 205) * 2,6,0 206) * 2,7,0 207) *
==> after additional insertion of ncr53c8xx: Cdrecord 1.10 (i686-pc-linux-gnu) Copyright (C) 1995-2001 Jörg Schilling Linux sg driver version: 3.1.20 Using libscg version 'schily-0.5' scsibus0: 0,0,0 0) 'IBM ' 'DDYS-T18350N ' 'S96H' Disk 0,1,0 1) * 0,2,0 2) * 0,3,0 3) * 0,4,0 4) * 0,5,0 5) * 0,6,0 6) * 0,7,0 7) * scsibus2: 2,0,0 200) 'HP ' 'CD-Writer 6020 ' '1.07' Removable CD-ROM 2,1,0 201) 'PLEXTOR ' 'CD-R PX-W1210S' '1.02' Removable CD-ROM 2,2,0 202) 'PLEXTOR ' 'CD-ROM PX-40TS ' '1.12' Removable CD-ROM 2,3,0 203) 'PIONEER ' 'DVD-ROM DVD-305 ' '1.03' Removable CD-ROM 2,4,0 204) * 2,5,0 205) * 2,6,0 206) * 2,7,0 207) *
==> Now, /proc/scsi/scsi contains:
weiss-ich-doch-nicht:/proc/scsi# cat scsi Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: IBM Model: DDYS-T18350N Rev: S96H Type: Direct-Access ANSI SCSI revision: 03 Host: scsi2 Channel: 00 Id: 01 Lun: 00 <--------------------------- Vendor: PLEXTOR Model: CD-R PX-W1210S Rev: 1.02 Type: CD-ROM ANSI SCSI revision: 02 Host: scsi2 Channel: 00 Id: 02 Lun: 00 Vendor: PLEXTOR Model: CD-ROM PX-40TS Rev: 1.12 Type: CD-ROM ANSI SCSI revision: 02 Host: scsi2 Channel: 00 Id: 03 Lun: 00 Vendor: PIONEER Model: DVD-ROM DVD-305 Rev: 1.03 Type: CD-ROM ANSI SCSI revision: 02 Host: scsi2 Channel: 00 Id: 00 Lun: 00 Vendor: HP Model: CD-Writer 6020 Rev: 1.07 Type: CD-ROM ANSI SCSI revision: 02 Host: scsi2 Channel: 00 Id: 01 Lun: 00 <--------------------------- Vendor: PLASMON Model: CDR4220 Rev: 1.20 Type: CD-ROM ANSI SCSI revision: 02
...which is obviously wrong. Any suggestion on where to start to search the bug?
MfG, JBG
-- Jan-Benedict Glaw . jbglaw@lug-owl.de . +49-172-7608481 - 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/ - 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/
|  |