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Date:      Mon, 1 Oct 2001 12:48:52 -0400
From:      Vivek Khera <khera@kcilink.com>
To:        stable@freebsd.org
Subject:   problems with BusLogic (aka Mylex) BT-948 controller
Message-ID:  <15288.40564.766657.92861@onceler.kciLink.com>

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A while back, I had written about repeated kernel warnings of CCB
timeouts on one of my machines.  The messages are like these, with
varying hex values:

Sep 30 03:07:18 lorax /kernel: (da0:bt0:0:0:0): CCB 0xc7830040 - timed out
Sep 30 03:07:26 lorax /kernel: (da0:bt0:0:0:0): CCB 0xc7830040 - timed out
Sep 30 03:07:26 lorax /kernel: bt0: No longer in timeout

This card worked flawlessly under BSD/OS, where Buslogic controllers
were the preferred devices.  The driver under BSD/OS was extremely
well done.  Simply installing FreeBSD on this box resulted in these
errors.

The above errors are repored under a recent kernel/world.
FreeBSD lorax.kciLink.com 4.4-STABLE FreeBSD 4.4-STABLE #0: Wed Sep 26 10:06:43 EDT 2001     vivek@lorax.kciLink.com:/usr/obj/u/lorax1/usr/src/sys/LORAX  i386
The dmesg output is below.


My query last December resulted in two replies.  One person said
running a cron job to sync once per minute cleared his problem with a
Mylex 958.  Another person said to check cables.  I recall someone
saying that the drive was going bad, but that was directly to me, not
the list.
http://www.freebsd.org/cgi/getmsg.cgi?fetch=177791+0+/usr/local/www/db/text/2000/freebsd-stable/20001210.freebsd-stable


In the archives, I found a query from July 2000 with similar issues
with a Mylex 958.  There was one response to it (not linked in the
archive) that indicated an older BIOS should be used in the card.  I
have BIOS 5.05R, which is older than the BIOS in the original query.
http://www.freebsd.org/cgi/getmsg.cgi?fetch=907153+909002+/usr/local/www/db/text/2000/freebsd-stable/20000709.freebsd-stable
http://www.freebsd.org/cgi/getmsg.cgi?fetch=1089306+1092247+/usr/local/www/db/text/2000/freebsd-stable/20000709.freebsd-stable


Also, from December 1997, I found a message regarding older Adaptec
controllers getting these errors under load.  This person said as
far as he can tell it is a driver issue, since the cards work fine
with other operating systems, similar to my experience.
http://www.freebsd.org/cgi/getmsg.cgi?fetch=0+2928+/usr/local/www/db/text/2000/freebsd-stable/20000618.freebsd-stable

Other than these kernel warnings (and the pause caused by these
timeouts) the machine runs just fine.  It has never crashed either
under BSD/OS nor FreeBSD on its own...

Does this seem like a driver issue?  I kind of feel like it is as it
only happens under heavy load.  I get the timeouts on the second drive
as well when I pound on it.  I don't think both drives are going bad
simultaneously...


Copyright (c) 1992-2001 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	The Regents of the University of California. All rights reserved.
FreeBSD 4.4-STABLE #0: Wed Sep 26 10:06:43 EDT 2001
    vivek@lorax.kciLink.com:/usr/obj/u/lorax1/usr/src/sys/LORAX
Timecounter "i8254"  frequency 1196664 Hz
CPU: Pentium/P54C (199.42-MHz 586-class CPU)
  Origin = "GenuineIntel"  Id = 0x52c  Stepping = 12
  Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8>
real memory  = 134217728 (131072K bytes)
avail memory = 127860736 (124864K bytes)
Preloaded elf kernel "kernel" at 0xc02d4000.
Intel Pentium detected, installing workaround for F00F bug
apm0: <APM BIOS> on motherboard
apm: found APM BIOS v1.1, connected at v1.1
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
isab0: <Intel 82371SB PCI to ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
pci0: <Intel PIIX3 ATA controller> at 7.1
de0: <Digital 21140 Fast Ethernet> port 0x6000-0x607f mem 0xe0800000-0xe080007f irq 5 at device 17.0 on pci0
de0: DEC DE500-XA 21140 [10-100Mb/s] pass 1.2
de0: address 00:00:f8:03:1e:19
pci0: <S3 Trio graphics accelerator> at 18.0 irq 9
bt0: <Buslogic Multi-Master SCSI Host Adapter> port 0x6100-0x6103 mem 0xe0801000-0xe0801fff irq 10 at device 19.0 on pci0
bt0: BT-948 FW Rev. 5.05R Ultra Narrow SCSI Host Adapter, SCSI ID 7, 192 CCBs
sis0: <NatSemi DP83815 10/100BaseTX> port 0x6200-0x62ff mem 0xe0802000-0xe0802fff irq 11 at device 20.0 on pci0
sis0: Ethernet address: 00:02:e3:15:61:04
miibus0: <MII bus> on sis0
ukphy0: <Generic IEEE 802.3u media interface> on miibus0
ukphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
orm0: <Option ROMs> at iomem 0xc0000-0xc7fff,0xc8000-0xcbfff on isa0
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
vga0: <Generic ISA VGA> at port 0x3b0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x100>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A, console
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
IP packet filtering initialized, divert disabled, rule-based forwarding disabled, default to accept, unlimited logging
Waiting 5 seconds for SCSI devices to settle
de0: enabling 10baseT port
Mounting root from ufs:/dev/da0s1a
da0 at bt0 bus 0 target 0 lun 0
da0: <SEAGATE ST31055N 0532> Fixed Direct Access SCSI-2 device 
da0: 10.000MB/s transfers (10.000MHz, offset 15), Tagged Queueing Enabled
da0: 1010MB (2069860 512 byte sectors: 64H 32S/T 1010C)
da1 at bt0 bus 0 target 1 lun 0
da1: <SEAGATE ST32550N 0021> Fixed Direct Access SCSI-2 device 
da1: 10.000MB/s transfers (10.000MHz, offset 15), Tagged Queueing Enabled
da1: 2047MB (4194058 512 byte sectors: 64H 32S/T 2047C)


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