Hi
I'm having some boot-time troubles with a machine running a number of
devices of an AHA1542CF controller. 2 out of 3 boots, the kernel reports
numerous "Wrong buffer length supplied for request sense (256)" errors.
This slows the machine somewhat, fills the syslog and renders the console
unusable, but otherwise the machine is fine.
Debugging on our side
Changing the file /drivers/scsi/aha1542.c from
#ifndef DEBUG
if (bufflen != sizeof(SCpnt->sense_buffer)) {
printk("Wrong buffer length supplied for request sense (%d)\n",bufflen);
};
#endif
to
#ifndef DEBUG
if (bufflen != sizeof(SCpnt->sense_buffer)) {
printk("Wrong buffer length supplied(%d) for request sense
(%d)\n",bufflen, sizeof(SCpnt-sense_buffer) );
};
#endif
Shows that the size of SCpnt->sense_buffer is 16
Wrong buffer length supplied(256) for request sense (16)
This problem persists for all tested 2.2.x kernels (5, 9 and 10), and only
occurs when one of the IBM DDRS-34560 disks are present (newly added, thus
the problem hasn't been detected before)
Please cc responses to
[EMAIL PROTECTED]
as I've been unable to subscribe to this list (a quick pointer here would
also be fine)
Output of proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: CONNER Model: CFA540S Rev: 0EAD
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 01 Lun: 00
Vendor: IBM Model: DDRS-34560 Rev: S97B
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 02 Lun: 00
Vendor: IBM Model: DDRS-34560 Rev: S97B
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 03 Lun: 00
Vendor: WDIGTL Model: WDE9100 Rev: 1.50
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 04 Lun: 00
Vendor: WDIGTL Model: WDE4550 Rev: 1.50
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 06 Lun: 00
Vendor: PLEXTOR Model: CD-ROM PX-32TS Rev: 1.03
Type: CD-ROM ANSI SCSI revision: 02
...and /proc/pci (don't think this is useful)
PCI devices found:
Bus 0, device 0, function 0:
Host bridge: Intel 440BX - 82443BX Host (rev 3).
Medium devsel. Master Capable. Latency=64.
Prefetchable 32 bit memory at 0xf8000000 [0xf8000008].
Bus 0, device 1, function 0:
PCI bridge: Intel 440BX - 82443BX AGP (rev 3).
Medium devsel. Master Capable. Latency=64. Min Gnt=128.
Bus 0, device 7, function 0:
ISA bridge: Intel 82371AB PIIX4 ISA (rev 2).
Medium devsel. Fast back-to-back capable. Master Capable. No
bursts.
Bus 0, device 7, function 1:
IDE interface: Intel 82371AB PIIX4 IDE (rev 1).
Medium devsel. Fast back-to-back capable. Master Capable.
Latency=64.
I/O at 0xffa0 [0xffa1].
Bus 0, device 7, function 2:
USB Controller: Intel 82371AB PIIX4 USB (rev 1).
Medium devsel. Fast back-to-back capable. Master Capable.
Latency=64.
I/O at 0xef80 [0xef81].
Bus 0, device 7, function 3:
Bridge: Intel 82371AB PIIX4 ACPI (rev 2).
Medium devsel. Fast back-to-back capable.
Bus 0, device 19, function 0:
VGA compatible controller: ATI 210888GX (rev 1).
Medium devsel.
Non-prefetchable 32 bit memory at 0xfe000000 [0xfe000000].
-S
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