very very strange !

Luis Guerra e Silva lgs at vinci.inesc.pt
Tue Jan 20 07:27:24 PST 1998


Hi, again !

I updated my Tyan Thunder's BIOS. And by error allocated an extra
IRQ for ISA devices. Because of this, the two SCSI Channels are
now assigned to the same IRQ (11) and IT WORKS !

This is very very .... very strange ?

Here follows the full log I got from dmesg:

aic7xxx: <Adaptec AIC-7895 Ultra SCSI host adapter> at PCI 15/1
aic7xxx: Loading serial EEPROM...
aic7xxx: No SEEPROM available; using defaults.
aic7xxx: Using leftover BIOS values.
aic7xxx: <Adaptec AIC-7895 Ultra SCSI host adapter> at PCI 15/0
aic7xxx: Loading serial EEPROM...
aic7xxx: No SEEPROM available; using defaults.
aic7xxx: Using leftover BIOS values.
(scsi0) <Adaptec AIC-7895 Ultra SCSI host adapter> found at PCI 15/0
(scsi0) Wide Channel A, SCSI ID=7, 32/255 SCBs
(scsi0) BIOS disabled, IO Port 0xe800, IO Mem 0xfebee000, IRQ 11
(scsi0) Resetting channel A
(scsi0) Downloading sequencer code...
(scsi0)   Will download code for option ULTRA
(scsi0)   Will download code for option WIDE
(scsi0)   Will download code for option SCB_PAGING
(scsi0) Download complete, 418 instructions downloaded
(scsi1) <Adaptec AIC-7895 Ultra SCSI host adapter> found at PCI 15/1
(scsi1) Wide Channel B, SCSI ID=7, 32/255 SCBs
(scsi1) BIOS disabled, IO Port 0xec00, IO Mem 0xfebef000, IRQ 11
(scsi1) Resetting channel B
(scsi1) Downloading sequencer code...
(scsi1)   Will download code for option ULTRA
(scsi1)   Will download code for option WIDE
(scsi1)   Will download code for option SCB_PAGING
(scsi1) Download complete, 418 instructions downloaded
scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.0.0/3.2.2
       <Adaptec AIC-7895 Ultra SCSI host adapter>
scsi1 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.0.0/3.2.2
       <Adaptec AIC-7895 Ultra SCSI host adapter>
scsi : 2 hosts.
(scsi0:0:-1:-1) Scanning channel for devices.
(scsi0:-1:-1:-1) Allocating initial 30 SCB structures.
(scsi0:0:0:0) Synchronous at 20.0MHz, offset 8.
  Vendor: QUANTUM   Model: FIREBALL ST4.3S   Rev: 0F0C
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
(scsi0:0:1:0) Synchronous at 20.0MHz, offset 8.
  Vendor: QUANTUM   Model: FIREBALL_TM2110S  Rev: 300N
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sdb at scsi0, channel 0, id 1, lun 0
(scsi0:0:3:0) Synchronous at 5.7MHz, offset 8.
  Vendor: PLEXTOR   Model: CD-ROM PX-4XCE    Rev: 1.00
  Type:   CD-ROM                             ANSI SCSI revision: 02
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 3, lun 0
(scsi0:0:0:0) Enabled tagged queuing, queue depth 5.
(scsi0:0:1:0) Enabled tagged queuing, queue depth 5.
(scsi1:0:-1:-1) Scanning channel for devices.
(scsi1:-1:-1:-1) Allocating initial 30 SCB structures.
scsi : detected 1 SCSI cdrom 2 SCSI disks total.
SCSI device sda: hdwr sector= 512 bytes. Sectors= 8471232 [4136 MB] [4.1 GB]
SCSI device sdb: hdwr sector= 512 bytes. Sectors= 4124736 [2014 MB] [2.0 GB]

Thanks,
-Luis



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