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Content-ID: <Pine.LNX.3.96.980105155950.600B@ppp10.csudh.edu>
With recent kernels, when the aha1542 driver is compiled as a module,
attempts to load the module generate this error:
/lib/modules/2.1.76/scsi/aha1542.o: unresolved symbol scsi_sleep
After I made the attached changes, that error goes away. I'm able to load
and unload the module. I'm able to use my tape drive with no problems.
When I try to use my CDROM drive, I get these messages:
# mount /dev/sr0 /cdrom/
Detected scsi CD-ROM sr0 at scsi1, channel 0, id 4, lun 0
aha1542.c: Trying device reset for target 4
HACC aha1542.c: interrupt received, but no mail.
Sent BUS RESET to scsi host 1
mount: block device /dev/sr0 is write-protected, mounting read-only
mount: /dev/sr0 is not a valid block device
When I try to use the AHA-1542 driver while my PnP sound card (configured
by Tom Lees' kernel PnP) is in place, I get these messages:
Jan 5 02:54:37 topside kernel: Configuring Adaptec (SCSI-ID 7) at IO:334,
IRQ 10, DMA priority 6
Jan 5 02:54:37 topside kernel: scsi0 : Adaptec 1542
Jan 5 02:54:37 topside kernel: scsi : 1 host.
Jan 5 02:54:43 topside kernel: aha1542.c: Unable to abort command for
target 0
Jan 5 02:54:43 topside kernel: aha1542.c: Trying device reset for target
0
Jan 5 02:55:10 topside kernel: Sent BUS RESET to scsi host 0
Jan 5 02:55:26 topside kernel: aha1542.c: Unable to abort command for
target 1
Jan 5 02:55:26 topside kernel: aha1542.c: Trying device reset for target
1
Jan 5 02:55:54 topside kernel: Sent BUS RESET to scsi host 0
Jan 5 02:56:10 topside kernel: aha1542.c: Unable to abort command for
target 2
Jan 5 02:56:10 topside kernel: aha1542.c: Trying device reset for target
2
Jan 5 02:56:37 topside kernel: Sent BUS RESET to scsi host 0
Jan 5 02:56:53 topside kernel: aha1542.c: Unable to abort command for
target 3
Jan 5 02:56:53 topside kernel: aha1542.c: Trying device reset for target
3
Jan 5 02:57:20 topside kernel: Sent BUS RESET to scsi host 0
Jan 5 02:57:36 topside kernel: aha1542.c: Unable to abort command for
target 4
Jan 5 02:57:36 topside kernel: aha1542.c: Trying device reset for target
4
Jan 5 02:58:03 topside kernel: Sent BUS RESET to scsi host 0
Jan 5 02:58:19 topside kernel: aha1542.c: Unable to abort command for
target 5
Jan 5 02:58:19 topside kernel: aha1542.c: Trying device reset for target
5
Jan 5 02:58:46 topside kernel: Sent BUS RESET to scsi host 0
Jan 5 02:59:02 topside kernel: aha1542.c: Unable to abort command for
target 6
Jan 5 02:59:02 topside kernel: aha1542.c: Trying device reset for target
6
Jan 5 02:59:29 topside kernel: Sent BUS RESET to scsi host 0
The SCSI LED flashes occasionally while this happens, and at the end the
module gets loaded, but the SCSI bus doesn't get initialized properly. On
unloading, the driver prints:
Jan 5 03:09:01 topside kernel: scsi : 0 hosts.
A look at /proc/dma, /proc/ioports and /proc/interrupts shows the correct
resources being assigned to the driver while it's doing the resets, and
shows them deallocated after the module has been unloaded.
I haven't tried the 2.1.78 pre-patches, but by my reading of the second
one, it doesn't look as though the scsi_sleep problem is addressed in it.
___
Trevor Johnson
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