RE: The problems in src/sys/dev/ic/isp.c

To: "'Jason Thorpe'" <thorpej%me.com@localhost>, "'Dennis Clarke'" <dc%genunix.com@localhost>
Subject: RE: The problems in src/sys/dev/ic/isp.c
From: <iwama%t3.rim.or.jp@localhost>
Date: Mon, 27 Apr 2026 19:42:44 +0900
Hi all,

I tested replacing the DEC KZPBA-CX(QLogic QLA1040B OEM) on a Personal Workstation 600a with a DEC KZPDA-AA(probably. It has a Qlogic ISP1020A. The sticker on the board says 54-24739-01 B01).
The result was that everything started up without any problems, just like before the replacement.

3)Personal Workstation 600a
>>>show config

Firmware
SRM Console:	V7.2-1		Mar  6 2000 14:47:02
ARC Console:	5.70
PALcode:	OpenVMS PALcode V1.20-16, Tru64 UNIX PALcode V1.22-18
SROM Version:   v5.90

Processor
DECchip (tm) 21164A-2	Pass   600 MHz  96 KBytes SCache 
2 MB BCache
PYXIS ASIC Pass 257

MEMORY


Memory Size = 1536Mb

Bank      Size/Sets   Base Addr
------    ----------  ---------
   0        512Mb      00000000
   1        512Mb      20000000
   2        512Mb      40000000


BCache Size = 2Mb

Tested Memory =  1536Mbytes

PCI Bus 
     Bus 00  Slot 03: Digital Semiconductor 21143 Network Controller
                                   ewa0.0.0.3.0          00-00-F8-75-C8-24   

     Bus 00  Slot 04: PCI IDE
                                   pqb0.0.1.4.0          PCI EIDE            
                                   dka0.0.0.4.0           401248 C DRW        

     Bus 00  Slot 07: Intel SIO 82378
                                                                             

     Bus 00  Slot 20: DECchip 21152 PCI to PCI Bridge
       Bus 01  Slot 08: NCR     895 Scsi Controller
                                   pkc0.7.0.1008.0       SCSI Bus ID 7       
                                   dkc0.0.0.1008.0        SEAGATE ST336607LW  

       Bus 01  Slot 09: DECchip 21050 PCI to PCI Bridge
       Bus 02  Slot 00: ISP1020 Scsi Controller
                                   pkd0.7.0.2000.0       SCSI Bus ID 7       
                                   dkd0.0.0.2000.0        SEAGATE ST39102LW   
                                   dkd300.3.0.2000.0      SEAGATE ST39102LW   
                                   dkd400.4.0.2000.0      IBM DDRS-39130W     

       Bus 01  Slot 10: Matrox Millenium II
ISA
Slot	Device	Name		Type	     Enabled  BaseAddr	IRQ	DMA
0
	0	MOUSE		Embedded	Yes	60	12	

	1	KBD		Embedded	Yes	60	1	

	2	COM1		Embedded	Yes	3f8	4	

	3	COM2		Embedded	Yes	2f8	3	

	4	LPT1		Embedded	Yes	3bc	7	

	5	FLOPPY		Embedded	Yes	3f0	6	2

	6	EIDE		Embedded	Yes	1f0	14	
							3f6	15	
							170		
							376		
	7	ES1888		Embedded	Yes	220	5	1

3-1)20260214081227Z daily image
>>>boot dka0 -fl A
(boot dka0.0.0.4.0 -flags A)
block 0 of dka0.0.0.4.0 is a valid boot block
reading 13 blocks from dka0.0.0.4.0
bootstrap code read in
base = 1d8000, image_start = 0, image_bytes = 1a00
initializing HWRPB at 2000
initializing page table at 1ca000
initializing machine state
setting affinity to the primary CPU
jumping to bootstrap code

NetBSD/alpha 11.99.5 ISO 9660 Primary Bootstrap
Jumping to entry point...

NetBSD/alpha 11.99.5 Secondary Bootstrap, Revision 1.13 (Sat Feb 14 08:12:27 UTC 2026)

VMS PAL rev: 0x1000000010114
OSF PAL rev: 0x1000000020116
Switch to OSF PAL code succeeded.

Boot flags: A
11312480+255344=0xb08980

Entering netbsd at 0xfffffc0000a01410...
[   1.0000000] Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
[   1.0000000]     2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
[   1.0000000]     2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023,
[   1.0000000]     2024, 2025, 2026
[   1.0000000]     The NetBSD Foundation, Inc.  All rights reserved.
[   1.0000000] Copyright (c) 1982, 1986, 1989, 1991, 1993
[   1.0000000]     The Regents of the University of California.  All rights reserved.

[   1.0000000] NetBSD 11.99.5 (INSTALL) #0: Sat Feb 14 08:12:27 UTC 2026
[   1.0000000] 	mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/alpha/compile/INSTALL
[   1.0000000] Digital Personal WorkStation 600au, 598MHz
[   1.0000000] 8192 byte page size, 1 processor.
[   1.0000000] total memory = 1536 MB
[   1.0000000] (1896 KB reserved for PROM, 1534 MB used by NetBSD)
[   1.0000000] avail memory = 1501 MB
[   1.0000000] mainbus0 (root)
[   1.0000000] cpu0 at mainbus0: ID 0 (primary), 21164A-0 (EV56)
[   1.0000000] cpu0: Architecture extensions: 0x1<BWX>
[   1.0000000] cia0 at mainbus0: DECchip 2117x Core Logic Chipset (Pyxis), pass 2
[   1.0000000] cia0: extended capabilities: 0x1<BWEN>
[   1.0000000] cia0: using BWX for PCI config access
[   1.0000000] cia0: WARNING: Pyxis pass 1 DMA bug; no bets...
[   1.0000000] pci0 at cia0 bus 0
[   1.0000000] tlp0 at pci0 dev 3 function 0: DECchip 21143 Ethernet, pass 3.0
[   1.0000000] tlp0: interrupting at dec 550 irq 0
[   1.0000000] tlp0: DEC, Ethernet address 00:00:f8:75:c8:24
[   1.0000000] nsphy0 at tlp0 phy 5: DP83840 10/100 media interface, rev. 1
[   1.0000000] nsphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
[   1.0000000] tlp0: 10baseT, 10baseT-FDX, 10base2, 10base5
[   1.0000000] cmdide0 at pci0 dev 4 function 0: CMD Technology PCI0646 (rev. 0x01)
[   1.0000000] cmdide0: primary channel wired to compatibility mode, channel non-independent
[   1.0000000] cmdide0: primary channel interrupting at isa irq 14
[   1.0000000] atabus0 at cmdide0 channel 0
[   1.0000000] cmdide0: secondary channel wired to compatibility mode, channel non-independent
[   1.0000000] cmdide0: secondary channel ignored (disabled)
[   1.0000000] sio0 at pci0 dev 7 function 0: vendor 8086 product 0484 (rev. 0x43)
[   1.0000000] ppb0 at pci0 dev 20 function 0: vendor 1011 product 0024 (rev. 0x02)
[   1.0000000] pci1 at ppb0 bus 1
[   1.0000000] siop0 at pci1 dev 8 function 0: Symbios Logic 53c895 (ultra2-wide scsi)
[   1.0000000] siop0: using on-board RAM
[   1.0000000] siop0: interrupting at dec 550 irq 12
[   1.0000000] scsibus0 at siop0: 16 targets, 8 luns per target
[   1.0000000] ppb1 at pci1 dev 9 function 0: vendor 1011 product 0001 (rev. 0x02)
[   1.0000000] pci2 at ppb1 bus 2
[   1.0000000] isp0 at pci2 dev 0 function 0: QLogic 1020 Fast Wide SCSI HBA
[   1.0000000] isp0: interrupting at dec 550 irq 16
[   1.0000000] vga0 at pci1 dev 10 function 0: vendor 102b product 051b (rev. 0x00)
[   1.0000000] wsdisplay0 at vga0 (kbdmux ignored)
[   1.0000000] drm at vga0 not configured
[   1.0000000] isa0 at sio0
[   1.0000000] com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, 16-byte FIFO
[   1.0000000] com0: console
[   1.0000000] com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, 16-byte FIFO
[   1.0000000] lpt0 at isa0 port 0x3bc-0x3bf irq 7
[   1.0000000] pckbc0 at isa0 port 0x60-0x64
[   1.0000000] pckbd0 at pckbc0 (kbd slot)
[   1.0000000] pckbc0: using irq 1 for kbd slot
[   1.0000000] wskbd0 at pckbd0 (mux ignored)
[   1.0000000] pms0 at pckbc0 (aux slot)
[   1.0000000] pckbc0: using irq 12 for aux slot
[   1.0000000] wsmouse0 at pms0 (mux ignored)
[   1.0000000] fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
[   1.0000000] mcclock0 at isa0 port 0x70-0x71: mc146818 compatible time-of-day clock
[   1.0000000] WARNING: system needs entropy for security; see entropy(7)
[   1.0095432] stray isa irq 14
[   1.0427910] stray isa irq 14
[   1.0770307] scsibus0: waiting 2 seconds for devices to settle...
[   1.1486278] scsibus1 at isp0: 16 targets, 8 luns per target
[   1.2156030] atapibus0 at atabus0: 2 targets
[   1.2648329] stray isa irq 14
[   1.3034904] scsibus1: waiting 2 seconds for devices to settle...
[   1.3738834] cd0 at atapibus0 drive 0: <401248 CDRW, 2J18NE0121, 1.0D> cdrom removable
[   3.4597467] sd0 at scsibus0 target 0 lun 0: <SEAGATE, ST336607LW, DS09> disk fixed
[   3.5495901] sd0: 34732 MB, 49855 cyl, 2 head, 713 sec, 512 bytes/sect x 71132959 sectors
[   3.6452937] sd0: sync (25.00ns offset 31), 16-bit (80.000MB/s) transfers, tagged queueing
[   3.9773237] fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
[   7.9001886] sd1 at scsibus1 target 0 lun 0: <SEAGATE, ST39102LW, 8320> disk fixed
[   7.9910136] sd1: 8683 MB, 6962 cyl, 12 head, 212 sec, 512 bytes/sect x 17783240 sectors
[   8.0886672] sd1: sync (100.00ns offset 12), 16-bit (20.000MB/s) transfers, tagged queueing
[   9.1980471] sd2 at scsibus1 target 3 lun 0: <SEAGATE, ST39102LW, 0004> disk fixed
[   9.2888689] sd2: 8683 MB, 6962 cyl, 12 head, 212 sec, 512 bytes/sect x 17783240 sectors
[   9.3865238] sd2: sync (100.00ns offset 12), 16-bit (20.000MB/s) transfers, tagged queueing
[   9.4949202] sd3 at scsibus1 target 4 lun 0: <IBM, DDRS-39130W, S97B> disk fixed
[   9.6658196] sd3: 8715 MB, 8387 cyl, 10 head, 212 sec, 512 bytes/sect x 17850000 sectors
[   9.7644548] sd3: sync (100.00ns offset 12), 16-bit (20.000MB/s) transfers, tagged queueing
[  15.0330300] WARNING: 1 error while detecting hardware; check system log.
[  15.1114235] WARNING: can't figure what device matches "SCSI 0 4 0 0 0 0 0"
[  15.1933905] root on md0a dumps on md0b
[  15.2381095] root file system type: ffs
[  15.2826285] kern.module.path=/stand/alpha/11.99.5/modules
[  15.3533542] entropy: best effort
Terminal type? [vt100] 
                                                                        Erase set to backspace.
erase ^?, werase ^W, kill ^U, intr ^C

3-2)John's patched 11.0_RC1 image
>>>boot dka0 -fl A
(boot dka0.0.0.4.0 -flags A)
block 0 of dka0.0.0.4.0 is a valid boot block
reading 13 blocks from dka0.0.0.4.0
bootstrap code read in
base = 1d8000, image_start = 0, image_bytes = 1a00
initializing HWRPB at 2000
initializing page table at 1ca000
initializing machine state
setting affinity to the primary CPU
jumping to bootstrap code

NetBSD/alpha 11.0_RC1 ISO 9660 Primary Bootstrap
Jumping to entry point...

NetBSD/alpha 11.0_RC1 Secondary Bootstrap, Revision 1.13 (Tue Feb 17 02:52:46 UTC 2026)

VMS PAL rev: 0x1000000010114
OSF PAL rev: 0x1000000020116
Switch to OSF PAL code succeeded.

Boot flags: A
11290976+255344=0xb034d0

Entering netbsd at 0xfffffc0000a01410...
[   1.0000000] Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
[   1.0000000]     2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
[   1.0000000]     2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023,
[   1.0000000]     2024, 2025, 2026
[   1.0000000]     The NetBSD Foundation, Inc.  All rights reserved.
[   1.0000000] Copyright (c) 1982, 1986, 1989, 1991, 1993
[   1.0000000]     The Regents of the University of California.  All rights reserved.

[   1.0000000] NetBSD 11.0_RC1 (INSTALL) #0: Tue Feb 17 02:57:57 UTC 2026
[   1.0000000] 	john%platypus.zia.io@localhost:/usr/obj-alpha/sys/arch/alpha/compile/INSTALL
[   1.0000000] Digital Personal WorkStation 600au, 598MHz
[   1.0000000] 8192 byte page size, 1 processor.
[   1.0000000] total memory = 1536 MB
[   1.0000000] (1896 KB reserved for PROM, 1534 MB used by NetBSD)
[   1.0000000] avail memory = 1501 MB
[   1.0000000] mainbus0 (root)
[   1.0000000] cpu0 at mainbus0: ID 0 (primary), 21164A-0 (EV56)
[   1.0000000] cpu0: Architecture extensions: 0x1<BWX>
[   1.0000000] cia0 at mainbus0: DECchip 2117x Core Logic Chipset (Pyxis), pass 2
[   1.0000000] cia0: extended capabilities: 0x1<BWEN>
[   1.0000000] cia0: using BWX for PCI config access
[   1.0000000] cia0: WARNING: Pyxis pass 1 DMA bug; no bets...
[   1.0000000] pci0 at cia0 bus 0
[   1.0000000] tlp0 at pci0 dev 3 function 0: DECchip 21143 Ethernet, pass 3.0
[   1.0000000] tlp0: interrupting at dec 550 irq 0
[   1.0000000] tlp0: DEC, Ethernet address 00:00:f8:75:c8:24
[   1.0000000] nsphy0 at tlp0 phy 5: DP83840 10/100 media interface, rev. 1
[   1.0000000] nsphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
[   1.0000000] tlp0: 10baseT, 10baseT-FDX, 10base2, 10base5
[   1.0000000] cmdide0 at pci0 dev 4 function 0: CMD Technology PCI0646 (rev. 0x01)
[   1.0000000] cmdide0: primary channel wired to compatibility mode, channel non-independent
[   1.0000000] cmdide0: primary channel interrupting at isa irq 14
[   1.0000000] atabus0 at cmdide0 channel 0
[   1.0000000] cmdide0: secondary channel wired to compatibility mode, channel non-independent
[   1.0000000] cmdide0: secondary channel ignored (disabled)
[   1.0000000] sio0 at pci0 dev 7 function 0: vendor 8086 product 0484 (rev. 0x43)
[   1.0000000] ppb0 at pci0 dev 20 function 0: vendor 1011 product 0024 (rev. 0x02)
[   1.0000000] pci1 at ppb0 bus 1
[   1.0000000] siop0 at pci1 dev 8 function 0: Symbios Logic 53c895 (ultra2-wide scsi)
[   1.0000000] siop0: using on-board RAM
[   1.0000000] siop0: interrupting at dec 550 irq 12
[   1.0000000] scsibus0 at siop0: 16 targets, 8 luns per target
[   1.0000000] ppb1 at pci1 dev 9 function 0: vendor 1011 product 0001 (rev. 0x02)
[   1.0000000] pci2 at ppb1 bus 2
[   1.0000000] isp0 at pci2 dev 0 function 0: QLogic 1020 Fast Wide SCSI HBA
[   1.0000000] isp0: interrupting at dec 550 irq 16
[   1.0000000] vga0 at pci1 dev 10 function 0: vendor 102b product 051b (rev. 0x00)
[   1.0000000] wsdisplay0 at vga0 (kbdmux ignored)
[   1.0000000] drm at vga0 not configured
[   1.0000000] isa0 at sio0
[   1.0000000] lpt0 at isa0 port 0x3bc-0x3bf irq 7
[   1.0000000] com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, 16-byte FIFO
[   1.0000000] com0: console
[   1.0000000] com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, 16-byte FIFO
[   1.0000000] pckbc0 at isa0 port 0x60-0x64
[   1.0000000] pckbd0 at pckbc0 (kbd slot)
[   1.0000000] pckbc0: using irq 1 for kbd slot
[   1.0000000] wskbd0 at pckbd0 (mux ignored)
[   1.0000000] pms0 at pckbc0 (aux slot)
[   1.0000000] pckbc0: using irq 12 for aux slot
[   1.0000000] wsmouse0 at pms0 (mux ignored)
[   1.0000000] fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
[   1.0000000] mcclock0 at isa0 port 0x70-0x71: mc146818 compatible time-of-day clock
[   1.0000000] WARNING: system needs entropy for security; see entropy(7)
[   1.0095448] stray isa irq 14
[   1.0428312] stray isa irq 14
[   1.0770704] scsibus0: waiting 2 seconds for devices to settle...
[   1.1486703] scsibus1 at isp0: 16 targets, 8 luns per target
[   1.2156128] atapibus0 at atabus0: 2 targets
[   1.2648787] stray isa irq 14
[   1.3034992] scsibus1: waiting 2 seconds for devices to settle...
[   1.3739319] cd0 at atapibus0 drive 0: <401248 CDRW, 2J18NE0121, 1.0D> cdrom removable
[   3.4598064] sd0 at scsibus0 target 0 lun 0: <SEAGATE, ST336607LW, DS09> disk fixed
[   3.5496523] sd0: 34732 MB, 49855 cyl, 2 head, 713 sec, 512 bytes/sect x 71132959 sectors
[   3.6453607] sd0: sync (25.00ns offset 31), 16-bit (80.000MB/s) transfers, tagged queueing
[   3.9773968] fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
[   7.9013361] sd1 at scsibus1 target 0 lun 0: <SEAGATE, ST39102LW, 8320> disk fixed
[   7.9911789] sd1: 8683 MB, 6962 cyl, 12 head, 212 sec, 512 bytes/sect x 17783240 sectors
[   8.0898142] sd1: sync (100.00ns offset 12), 16-bit (20.000MB/s) transfers, tagged queueing
[   9.1982437] sd2 at scsibus1 target 3 lun 0: <SEAGATE, ST39102LW, 0004> disk fixed
[   9.2890679] sd2: 8683 MB, 6962 cyl, 12 head, 212 sec, 512 bytes/sect x 17783240 sectors
[   9.3876999] sd2: sync (100.00ns offset 12), 16-bit (20.000MB/s) transfers, tagged queueing
[   9.4961039] sd3 at scsibus1 target 4 lun 0: <IBM, DDRS-39130W, S97B> disk fixed
[   9.6670057] sd3: 8715 MB, 8387 cyl, 10 head, 212 sec, 512 bytes/sect x 17850000 sectors
[   9.7656417] sd3: sync (100.00ns offset 12), 16-bit (20.000MB/s) transfers, tagged queueing
[  15.0255527] WARNING: 1 error while detecting hardware; check system log.
[  15.1045055] WARNING: can't figure what device matches "SCSI 0 4 0 0 0 0 0"
[  15.1866912] root on md0a dumps on md0b
[  15.2316154] root file system type: ffs
[  15.2757081] kern.module.path=/stand/alpha/11.0/modules
[  15.3468627] entropy: best effort
Terminal type? [vt100] 
                                                                        Erase set to backspace.
erase ^?, werase ^W, kill ^U, intr ^C

3-3)Thorpej's patched image
>>>boot dka0 -fl A
(boot dka0.0.0.4.0 -flags A)
block 0 of dka0.0.0.4.0 is a valid boot block
reading 13 blocks from dka0.0.0.4.0
bootstrap code read in
base = 1d8000, image_start = 0, image_bytes = 1a00
initializing HWRPB at 2000
initializing page table at 1ca000
initializing machine state
setting affinity to the primary CPU
jumping to bootstrap code

NetBSD/alpha 11.99.5 ISO 9660 Primary Bootstrap
Jumping to entry point...

NetBSD/alpha 11.99.5 Secondary Bootstrap, Revision 1.13 (Wed Apr 22 03:25:12 UTC 2026)

VMS PAL rev: 0x1000000010114
OSF PAL rev: 0x1000000020116
Switch to OSF PAL code succeeded.

Boot flags: A
11314192+254592=0xb08d40

Entering netbsd at 0xfffffc0000a01410...
[   1.0000000] Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
[   1.0000000]     2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
[   1.0000000]     2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023,
[   1.0000000]     2024, 2025, 2026
[   1.0000000]     The NetBSD Foundation, Inc.  All rights reserved.
[   1.0000000] Copyright (c) 1982, 1986, 1989, 1991, 1993
[   1.0000000]     The Regents of the University of California.  All rights reserved.

[   1.0000000] NetBSD 11.99.5 (INSTALL) #1: Wed Apr 22 04:27:07 PDT 2026
[   1.0000000] 	thorpej@the-ripe-vessel:/nbsd/objdir/alpha/sys/arch/alpha/compile/INSTALL
[   1.0000000] Digital Personal WorkStation 600au, 598MHz
[   1.0000000] 8192 byte page size, 1 processor.
[   1.0000000] total memory = 1536 MB
[   1.0000000] (1896 KB reserved for PROM, 1534 MB used by NetBSD)
[   1.0000000] avail memory = 1501 MB
[   1.0000000] mainbus0 (root)
[   1.0000000] cpu0 at mainbus0: ID 0 (primary), 21164A-0 (EV56)
[   1.0000000] cpu0: Architecture extensions: 0x1<BWX>
[   1.0000000] cia0 at mainbus0: DECchip 2117x Core Logic Chipset (Pyxis), pass 2
[   1.0000000] cia0: extended capabilities: 0x1<BWEN>
[   1.0000000] cia0: using BWX for PCI config access
[   1.0000000] cia0: WARNING: Pyxis pass 1 DMA bug; no bets...
[   1.0000000] pci0 at cia0 bus 0
[   1.0000000] tlp0 at pci0 dev 3 function 0: DECchip 21143 Ethernet, pass 3.0
[   1.0000000] tlp0: interrupting at dec 550 irq 0
[   1.0000000] tlp0: DEC, Ethernet address 00:00:f8:75:c8:24
[   1.0000000] nsphy0 at tlp0 phy 5: DP83840 10/100 media interface, rev. 1
[   1.0000000] nsphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
[   1.0000000] tlp0: 10baseT, 10baseT-FDX, 10base2, 10base5
[   1.0000000] cmdide0 at pci0 dev 4 function 0: CMD Technology PCI0646 (rev. 0x01)
[   1.0000000] cmdide0: primary channel wired to compatibility mode, channel non-independent
[   1.0000000] cmdide0: primary channel interrupting at isa irq 14
[   1.0000000] atabus0 at cmdide0 channel 0
[   1.0000000] cmdide0: secondary channel wired to compatibility mode, channel non-independent
[   1.0000000] cmdide0: secondary channel ignored (disabled)
[   1.0000000] sio0 at pci0 dev 7 function 0: vendor 8086 product 0484 (rev. 0x43)
[   1.0000000] ppb0 at pci0 dev 20 function 0: vendor 1011 product 0024 (rev. 0x02)
[   1.0000000] pci1 at ppb0 bus 1
[   1.0000000] siop0 at pci1 dev 8 function 0: Symbios Logic 53c895 (ultra2-wide scsi)
[   1.0000000] siop0: using on-board RAM
[   1.0000000] siop0: interrupting at dec 550 irq 12
[   1.0000000] scsibus0 at siop0: 16 targets, 8 luns per target
[   1.0000000] ppb1 at pci1 dev 9 function 0: vendor 1011 product 0001 (rev. 0x02)
[   1.0000000] pci2 at ppb1 bus 2
[   1.0000000] isp0 at pci2 dev 0 function 0: QLogic 1020 Fast Wide SCSI HBA
[   1.0000000] isp0: interrupting at dec 550 irq 16
[   1.0000000] vga0 at pci1 dev 10 function 0: vendor 102b product 051b (rev. 0x00)
[   1.0000000] wsdisplay0 at vga0 (kbdmux ignored)
[   1.0000000] drm at vga0 not configured
[   1.0000000] isa0 at sio0
[   1.0000000] com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, 16-byte FIFO
[   1.0000000] com0: console
[   1.0000000] com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, 16-byte FIFO
[   1.0000000] lpt0 at isa0 port 0x3bc-0x3bf irq 7
[   1.0000000] pckbc0 at isa0 port 0x60-0x64
[   1.0000000] pckbd0 at pckbc0 (kbd slot)
[   1.0000000] pckbc0: using irq 1 for kbd slot
[   1.0000000] wskbd0 at pckbd0 (mux ignored)
[   1.0000000] pms0 at pckbc0 (aux slot)
[   1.0000000] pckbc0: using irq 12 for aux slot
[   1.0000000] wsmouse0 at pms0 (mux ignored)
[   1.0000000] fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
[   1.0000000] mcclock0 at isa0 port 0x70-0x71: mc146818 compatible time-of-day clock
[   1.0000000] WARNING: system needs entropy for security; see entropy(7)
[   1.0098599] stray isa irq 14
[   1.0430659] stray isa irq 14
[   1.0772469] scsibus0: waiting 2 seconds for devices to settle...
[   1.1487139] scsibus1 at isp0: 16 targets, 8 luns per target
[   1.2159244] atapibus0 at atabus0: 2 targets
[   1.2649250] stray isa irq 14
[   1.3038080] scsibus1: waiting 2 seconds for devices to settle...
[   1.3741242] cd0 at atapibus0 drive 0: <401248 CDRW, 2J18NE0121, 1.0D> cdrom removable
[   3.4591138] sd0 at scsibus0 target 0 lun 0: <SEAGATE, ST336607LW, DS09> disk fixed
[   3.5489465] sd0: 34732 MB, 49855 cyl, 2 head, 713 sec, 512 bytes/sect x 71132959 sectors
[   3.6446531] sd0: sync (25.00ns offset 31), 16-bit (80.000MB/s) transfers, tagged queueing
[   3.9757067] fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
[   7.8898114] sd1 at scsibus1 target 0 lun 0: <SEAGATE, ST39102LW, 8320> disk fixed
[   7.9806347] sd1: 8683 MB, 6962 cyl, 12 head, 212 sec, 512 bytes/sect x 17783240 sectors
[   8.0782920] sd1: sync (100.00ns offset 12), 16-bit (20.000MB/s) transfers, tagged queueing
[   9.1876756] sd2 at scsibus1 target 3 lun 0: <SEAGATE, ST39102LW, 0004> disk fixed
[   9.2785006] sd2: 8683 MB, 6962 cyl, 12 head, 212 sec, 512 bytes/sect x 17783240 sectors
[   9.3761542] sd2: sync (100.00ns offset 12), 16-bit (20.000MB/s) transfers, tagged queueing
[   9.4845539] sd3 at scsibus1 target 4 lun 0: <IBM, DDRS-39130W, S97B> disk fixed
[   9.6613129] sd3: 8715 MB, 8387 cyl, 10 head, 212 sec, 512 bytes/sect x 17850000 sectors
[   9.7599490] sd3: sync (100.00ns offset 12), 16-bit (20.000MB/s) transfers, tagged queueing
[  15.0119599] WARNING: 1 error while detecting hardware; check system log.
[  15.0900864] WARNING: can't figure what device matches "SCSI 0 4 0 0 0 0 0"
[  15.1721166] root on md0a dumps on md0b
[  15.2170441] root file system type: ffs
[  15.2612852] kern.module.path=/stand/alpha/11.99.5/modules
[  15.3313140] entropy: best effort
Terminal type? [vt100] 
                                                                        Erase set to backspace.
erase ^?, werase ^W, kill ^U, intr ^C
-- 
Yoshihiko Iwama
References:
- The problems in src/sys/dev/ic/isp.c
  - From: Dennis Clarke
- Re: The problems in src/sys/dev/ic/isp.c
  - From: Dennis Clarke
- Re: The problems in src/sys/dev/ic/isp.c
  - From: Jason Thorpe
- Re: The problems in src/sys/dev/ic/isp.c
  - From: Dennis Clarke
- Re: The problems in src/sys/dev/ic/isp.c
  - From: Istvan Gyenes
- Re: The problems in src/sys/dev/ic/isp.c
  - From: Jason Thorpe
- Re: The problems in src/sys/dev/ic/isp.c
  - From: Dennis Clarke
- Re: The problems in src/sys/dev/ic/isp.c
  - From: Jason Thorpe
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