Bug 12626

Summary:	Adaptec 3950 in 3.2 fails to probe disks
Product:	Base System	Reporter:	ilg <ilg>
Component:	kern	Assignee:	freebsd-bugs (Nobody) <bugs>
Status:	Closed FIXED
Severity:	Affects Only Me
Priority:	Normal
Version:	3.2-RELEASE
Hardware:	Any
OS:	Any

Description ilg 1999-07-13 14:40:03 UTC

while booting the GENERIC 3.2 kernel, although the Adaptec 3950 card is identified as a valid PCI device, attached disks are not recognized.

after replacing the card with a 2940, exactly the same configuration booted without problems.

as far as I remember (I don't have a 3.1 disk at hand to give it a try), exactly the same configuration worked in 3.1-RELEASE.

the dmesg output for the 3950 boot follows:

Copyright (c) 1992-1999 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 3.2-RELEASE #0: Tue May 18 04:05:08 GMT 1999
jkh@cathair:/usr/src/sys/compile/GENERIC
Timecounter "i8254"  frequency 1193182 Hz
CPU: Pentium II/Xeon/Celeron (348.49-MHz 686-class CPU)
Origin = "GenuineIntel"  Id = 0x652  Stepping=2
Features=0x183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,<b24>>
real memory  = 134217728 (131072K bytes)
avail memory = 127070208 (124092K bytes)
Preloaded elf kernel "kernel" at 0xc0358000.
Probing for devices on PCI bus 0:
chip0: <Intel 82443BX host to PCI bridge> rev 0x03 on pci0.0.0
chip1: <Intel 82443BX host to AGP bridge> rev 0x03 on pci0.1.0
fxp0: <Intel EtherExpress Pro 10/100B Ethernet> rev 0x05 int a irq 9 on pci0.6.0
fxp0: Ethernet address 00:a0:c9:fc:c6:8a
chip2: <Intel 82371AB PCI to ISA bridge> rev 0x02 on pci0.7.0
ide_pci0: <Intel PIIX4 Bus-master IDE controller> rev 0x01 on pci0.7.1
chip3: <Intel 82371AB Power management controller> rev 0x02 on pci0.7.3
fxp1: <Intel EtherExpress Pro 10/100B Ethernet> rev 0x08 int a irq 10 on pci0.18.0
fxp1: Ethernet address 00:90:27:84:a0:01
ahc0: <Adaptec 3950B Ultra2 SCSI adapter> rev 0x00 int a irq 11 on pci0.20.0
ahc0: aic7896/97 Wide Channel A, SCSI Id=7, 16/255 SCBs
ahc1: <Adaptec 3950B Ultra2 SCSI adapter> rev 0x00 int a irq 11 on pci0.20.1
ahc1: aic7896/97 Wide Channel B, SCSI Id=7, 16/255 SCBs
Probing for devices on PCI bus 1:
vga0: <ATI model 4742 graphics accelerator> rev 0x5c int a irq 11 on pci1.0.0
Probing for PnP devices:
CSN 1 Vendor ID: CSC0225 [0x2502630e] Serial 0xffffffff Comp ID: @@@0000 [0x00000000]
Probing for devices on the ISA bus:
sc0 on isa
sc0: VGA color <16 virtual consoles, flags=0x0>
ed0 not found at 0x280
fe0 not found at 0x300
atkbdc0 at 0x60-0x6f on motherboard
atkbd0 irq 1 on isa
psm0 not found
sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa
sio0: type 16550A
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
wdc0 at 0x1f0-0x1f7 irq 14 on isa
wdc0: unit 0 (wd0): <WDC AC26400R>
wd0: 6149MB (12594960 sectors), 13328 cyls, 15 heads, 63 S/T, 512 B/S
wdc1 at 0x170-0x177 irq 15 on isa
wdc1: unit 0 (wd2): <M-SYSTEMS ATA Ver 3.2S>
wd2: 31MB (64000 sectors), 500 cyls, 8 heads, 16 S/T, 512 B/S
wdc1: unit 1 (wd3): <M-SYSTEMS ATA Ver 3.2S>
wd3: 7MB (16000 sectors), 250 cyls, 4 heads, 16 S/T, 512 B/S
wt0 not found at 0x300
mcd0 not found at 0x300
matcdc0 not found at 0x230
scd0 not found at 0x230
ppc0 at 0x378 irq 7 flags 0x40 on isa
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/8 bytes threshold
lpt0: <generic printer> on ppbus 0
lpt0: Interrupt-driven port
ppi0: <generic parallel i/o> on ppbus 0
plip0: <PLIP network interface> on ppbus 0
lpt0: <generic printer> on ppbus 0
lpt0: Interrupt-driven port
ie0: unknown board_id: f000
ie0 not found at 0x300
ep0 not found at 0x300
ex0 not found
le0 not found at 0x300
lnc0 not found at 0x280
ze0 not found at 0x300
zp0 not found at 0x300
cs0 not found at 0x300
adv0 not found at 0x330
bt_isa_probe: Probe failled for card at 0x330
bt_isa_probe: Probe failled for card at 0x334
bt_isa_probe: Probe failled for card at 0x230
bt_isa_probe: Probe failled for card at 0x234
bt_isa_probe: Probe failled for card at 0x130
bt_isa_probe: Probe failled for card at 0x134
bt0 not found at 0x134
aha0 not found at 0x134
vga0 at 0x3b0-0x3df maddr 0xa0000 msize 131072 on isa
npx0 on motherboard
npx0: INT 16 interface
Waiting 15 seconds for SCSI devices to settle
ahc0: Someone reset channel A
(probe1:ahc0:0:1:0): SCB 0xe - timed out while idle, LASTPHASE == 0x1, SEQADDR == 0x45
(probe1:ahc0:0:1:0): Queuing a BDR SCB
(probe1:ahc0:0:1:0): SCB 0xe - timed out while idle, LASTPHASE == 0x1, SEQADDR == 0x7
(probe1:ahc0:0:1:0): no longer in timeout, status = 34b
ahc0: Issued Channel A Bus Reset. 15 SCBs aborted
ahc0: Someone reset channel A
(probe1:ahc0:0:1:0): SCB 0x1 - timed out while idle, LASTPHASE == 0x1, SEQADDR == 0x43
(probe1:ahc0:0:1:0): Queuing a BDR SCB
(probe1:ahc0:0:1:0): SCB 0x1 - timed out while idle, LASTPHASE == 0x1, SEQADDR == 0x6
(probe1:ahc0:0:1:0): no longer in timeout, status = 34b
ahc0: Issued Channel A Bus Reset. 2 SCBs aborted
ahc0: Someone reset channel A
<<<manually disconect disk from the SCSI bus using the HotSwap key>>>
changing root device to wd0s1a


the dmesg output when using the 2940 card:


Copyright (c) 1992-1999 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 3.2-RELEASE #0: Tue May 18 04:05:08 GMT 1999
jkh@cathair:/usr/src/sys/compile/GENERIC
Timecounter "i8254"  frequency 1193182 Hz
CPU: Pentium II/Xeon/Celeron (348.49-MHz 686-class CPU)
Origin = "GenuineIntel"  Id = 0x652  Stepping=2
Features=0x183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,<b24>>
real memory  = 134217728 (131072K bytes)
avail memory = 127070208 (124092K bytes)
Preloaded elf kernel "kernel" at 0xc0358000.
Probing for devices on PCI bus 0:
chip0: <Intel 82443BX host to PCI bridge> rev 0x03 on pci0.0.0
chip1: <Intel 82443BX host to AGP bridge> rev 0x03 on pci0.1.0
fxp0: <Intel EtherExpress Pro 10/100B Ethernet> rev 0x05 int a irq 9 on pci0.6.0
fxp0: Ethernet address 00:a0:c9:fc:c6:8a
chip2: <Intel 82371AB PCI to ISA bridge> rev 0x02 on pci0.7.0
ide_pci0: <Intel PIIX4 Bus-master IDE controller> rev 0x01 on pci0.7.1
chip3: <Intel 82371AB Power management controller> rev 0x02 on pci0.7.3
fxp1: <Intel EtherExpress Pro 10/100B Ethernet> rev 0x08 int a irq 10 on pci0.18.0
fxp1: Ethernet address 00:90:27:84:a0:01
ahc0: <Adaptec 2940 Ultra2 SCSI adapter> rev 0x00 int a irq 11 on pci0.20.0
ahc0: aic7890/91 Wide Channel A, SCSI Id=7, 16/255 SCBs
Probing for devices on PCI bus 1:
vga0: <ATI model 4742 graphics accelerator> rev 0x5c int a irq 11 on pci1.0.0
Probing for PnP devices:
CSN 1 Vendor ID: CSC0225 [0x2502630e] Serial 0xffffffff Comp ID: @@@0000 [0x00000000]
Probing for devices on the ISA bus:
sc0 on isa
sc0: VGA color <16 virtual consoles, flags=0x0>
ed0 not found at 0x280
fe0 not found at 0x300
atkbdc0 at 0x60-0x6f on motherboard
atkbd0 irq 1 on isa
psm0 not found
sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa
sio0: type 16550A
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
wdc0 at 0x1f0-0x1f7 irq 14 on isa
wdc0: unit 0 (wd0): <WDC AC26400R>
wd0: 6149MB (12594960 sectors), 13328 cyls, 15 heads, 63 S/T, 512 B/S
wdc1 at 0x170-0x177 irq 15 on isa
wdc1: unit 0 (wd2): <M-SYSTEMS ATA Ver 3.2S>
wd2: 31MB (64000 sectors), 500 cyls, 8 heads, 16 S/T, 512 B/S
wdc1: unit 1 (wd3): <M-SYSTEMS ATA Ver 3.2S>
wd3: 7MB (16000 sectors), 250 cyls, 4 heads, 16 S/T, 512 B/S
wt0 not found at 0x300
mcd0 not found at 0x300
matcdc0 not found at 0x230
scd0 not found at 0x230
ppc0 at 0x378 irq 7 flags 0x40 on isa
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/8 bytes threshold
lpt0: <generic printer> on ppbus 0
lpt0: Interrupt-driven port
ppi0: <generic parallel i/o> on ppbus 0
plip0: <PLIP network interface> on ppbus 0
lpt0: <generic printer> on ppbus 0
lpt0: Interrupt-driven port
ie0: unknown board_id: f000
ie0 not found at 0x300
ep0 not found at 0x300
ex0 not found
le0 not found at 0x300
lnc0 not found at 0x280
ze0 not found at 0x300
zp0 not found at 0x300
cs0 not found at 0x300
adv0 not found at 0x330
bt_isa_probe: Probe failled for card at 0x330
bt_isa_probe: Probe failled for card at 0x334
bt_isa_probe: Probe failled for card at 0x230
bt_isa_probe: Probe failled for card at 0x234
bt_isa_probe: Probe failled for card at 0x130
bt_isa_probe: Probe failled for card at 0x134
bt0 not found at 0x134
aha0 not found at 0x134
vga0 at 0x3b0-0x3df maddr 0xa0000 msize 131072 on isa
npx0 on motherboard
npx0: INT 16 interface
Waiting 15 seconds for SCSI devices to settle
changing root device to wd0s1a
da0 at ahc0 bus 0 target 0 lun 0
da0: <SEAGATE ST39102LW 0005> Fixed Direct Access SCSI-2 device 
da0: 80.000MB/s transfers (40.000MHz, offset 15, 16bit), Tagged Queueing Enabled
da0: 8683MB (17783240 512 byte sectors: 255H 63S/T 1106C)

Fix: 

immediatelly after disconnecting the SCSI disk from the LVD bus (we are using a Livingston HotSwap frame) the kernel resumes the boot procedure.
How-To-Repeat: simply reboot

Comment 1 gibbs 1999-07-13 16:18:19 UTC

>>Description:
>while booting the GENERIC 3.2 kernel, although the Adaptec 3950 card is identi
>fied as a valid PCI device, attached disks are not recognized.

It looks like you have some type of interrupt conflict in your machine,
perhaps with some device on the motherboard.  The 3950B has been tested
in other machines and is known to work there, so my first guess is
an irq/bios configuration problem.

--
Justin

Comment 2 ilg 1999-07-13 17:45:08 UTC

> It looks like you have some type of interrupt conflict in
> your machine,
> perhaps with some device on the motherboard.  The 3950B has
> been tested
> in other machines and is known to work there, so my first guess is
> an irq/bios configuration problem.

visual inspection of the two configurations revealed no differences.
both configurations use irq 11.

ahc0: <Adaptec 3950B Ultra2 SCSI adapter> rev 0x00 int a irq 11 on pci0.20.0
ahc0: aic7896/97 Wide Channel A, SCSI Id=7, 16/255 SCBs
ahc1: <Adaptec 3950B Ultra2 SCSI adapter> rev 0x00 int a irq 11 on pci0.20.1
ahc1: aic7896/97 Wide Channel B, SCSI Id=7, 16/255 SCBs

ahc0: <Adaptec 2940 Ultra2 SCSI adapter> rev 0x00 int a irq 11 on pci0.20.0
ahc0: aic7890/91 Wide Channel A, SCSI Id=7, 16/255 SCBs

linux slackware 4.0 had no problems to boot and identify the scsi disk on
the 3950 card.

if you think a verbose boot can be of any help I can forward it to you.


regards,

Liviu

Comment 3 Justin T. Gibbs freebsd_committer

1999-09-03 23:12:50 UTC

State Changed
From-To: open->closed

Fixed in rev 1.17 of ahc_pci.c.