In case somebody is interested ...
The new Adaptec SCSI host-adapter driver "aic7xxx 6.1.5" in
Linux kernel 2.4.3 (compiled on a RedHat 7.0 system) doesn't
recognize my Yamaha CRW4416S CD-ReWriter. It also outputs some
error messages saying "request_module[scsi_hostadapter]:
Root fs not mounted".
It worked fine with the old aic7xxx 5.x driver in kernel 2.4.2.
After fetching the new aic7xxx 6.1.11 driver from
http://people.FreeBSD.org/~gibbs/linux/ and applying
the patch to a vanilla 2.4.3 kernel source tree,
everything was fine again. The error messages disappeared
and my Yamaha CD-ReWriter was recognized.
Looks like the aic7xxx 6.1.5 driver shipped with kernel 2.4.3
isn't a good choice. ;-)
Excerpt from /var/log/messages with vanilla Linux kernel 2.4.3
and built-in aic7xxx 6.1.5 driver:
Apr 11 22:03:51 lakai kernel: SCSI subsystem driver Revision: 1.00
Apr 11 22:03:51 lakai kernel: request_module[scsi_hostadapter]: Root fs not mounted
Apr 11 22:03:51 lakai kernel: request_module[scsi_hostadapter]: Root fs not mounted
Apr 11 22:03:51 lakai kernel: request_module[scsi_hostadapter]: Root fs not mounted
Apr 11 22:03:51 lakai kernel: PCI: Found IRQ 9 for device 02:0b.0
Apr 11 22:03:51 lakai kernel: PCI: The same IRQ used for device 01:00.0
Apr 11 22:03:51 lakai kernel: PCI: The same IRQ used for device 02:09.0
Apr 11 22:03:51 lakai kernel: scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.1.5
Apr 11 22:03:51 lakai kernel: <Adaptec 2940 SCSI adapter>
Apr 11 22:03:51 lakai kernel: aic7870: Single Channel A, SCSI Id=7, 16/255 SCBs
Apr 11 22:03:51 lakai kernel:
Apr 11 22:03:51 lakai kernel: Vendor: IBM Model: DCAS-34330 Rev: S65A
Apr 11 22:03:51 lakai kernel: Type: Direct-Access ANSI SCSI revision: 02
Apr 11 22:03:51 lakai kernel: Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
Apr 11 22:03:51 lakai kernel: scsi0:0:0:0: Tagged Queuing enabled. Depth 8
Apr 11 22:03:51 lakai kernel: (scsi0:A:0): 10.000MB/s transfers (10.000MHz, offset 15)
Apr 11 22:03:51 lakai kernel: SCSI device sda: 8467200 512-byte hdwr sectors (4335 MB)
Apr 11 22:03:51 lakai kernel: sda: sda1 sda2 < sda5 sda6 sda7 sda8 sda9 sda10 sda11 sda12 >
Excerpt from /var/log/messages with aic7xxx 6.1.11 patch applied
to vanilla kernel 2.4.3 source tree:
Apr 12 00:00:52 lakai kernel: SCSI subsystem driver Revision: 1.00
Apr 12 00:00:52 lakai kernel: PCI: Found IRQ 9 for device 02:0b.0
Apr 12 00:00:52 lakai kernel: PCI: The same IRQ used for device 01:00.0
Apr 12 00:00:52 lakai kernel: PCI: The same IRQ used for device 02:09.0
Apr 12 00:00:52 lakai kernel: scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.1.11
Apr 12 00:00:52 lakai kernel: <Adaptec 2940 SCSI adapter>
Apr 12 00:00:52 lakai kernel: aic7870: Single Channel A, SCSI Id=7, 16/255 SCBs
Apr 12 00:00:52 lakai kernel:
Apr 12 00:00:52 lakai kernel: Vendor: IBM Model: DCAS-34330 Rev: S65A
Apr 12 00:00:52 lakai kernel: Type: Direct-Access ANSI SCSI revision: 02
Apr 12 00:00:53 lakai kernel: Vendor: YAMAHA Model: CRW4416S Rev: 1.0f
Apr 12 00:00:53 lakai kernel: Type: CD-ROM ANSI SCSI revision: 02
Apr 12 00:00:53 lakai kernel: scsi0:0:0:0: Tagged Queuing enabled. Depth 253
Apr 12 00:00:53 lakai kernel: Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
Apr 12 00:00:53 lakai kernel: (scsi0:A:0): 10.000MB/s transfers (10.000MHz, offset 15)
Apr 12 00:00:53 lakai kernel: SCSI device sda: 8467200 512-byte hdwr sectors (4335 MB)
Apr 12 00:00:53 lakai kernel: sda: sda1 sda2 < sda5 sda6 sda7 sda8 sda9 sda10 sda11 sda12 >
Apr 12 00:00:53 lakai kernel: Detected scsi CD-ROM sr0 at scsi0, channel 0, id 5, lun 0
Apr 12 00:00:53 lakai kernel: (scsi0:A:5): 8.333MB/s transfers (8.333MHz, offset 15)
Apr 12 00:00:53 lakai kernel: sr0: scsi3-mmc drive: 16x/16x writer cd/rw xa/form2 cdda tray
Regards,
Andreas
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