Whilst my -current system has stopped crashing every night, I got some
odd log messages last night.  At the time the system should have been
doing a cvs update (or possibly a make world).  There was nothing in
the CD-ROM (ata0-slave) at the time.  I'm running the latest version
of ata (about 7 days old).

Jan 17 00:48:45 gsmx07 /kernel: ad2: ad_timeout: lost disk contact - resetting
Jan 17 00:48:45 gsmx07 /kernel: ata1: resetting devices .. done
Jan 17 00:48:45 gsmx07 /kernel: ad0: ad_timeout: lost disk contact - resetting
Jan 17 00:48:45 gsmx07 /kernel: ata0: resetting devices .. done
Jan 17 00:49:56 gsmx07 /kernel: ad2: ad_timeout: lost disk contact - resetting
Jan 17 00:49:56 gsmx07 /kernel: ata1: resetting devices .. done
Jan 17 00:49:56 gsmx07 /kernel: ad0: ad_timeout: lost disk contact - resetting
Jan 17 00:49:56 gsmx07 /kernel: ata0: resetting devices .. ata0-slave: timeout waiting 
for command=ef s=00 e=64
Jan 17 00:49:56 gsmx07 /kernel: ata0-slave: timeout waiting for command=ef s=00 e=64
Jan 17 00:49:56 gsmx07 /kernel: done
Jan 17 00:49:56 gsmx07 /kernel: ad0: ad_timeout: lost disk contact - resetting
Jan 17 00:49:56 gsmx07 /kernel: ata0: resetting devices .. ata0-slave: timeout waiting 
for command=ef s=00 e=64
Jan 17 00:49:56 gsmx07 /kernel: ata0-slave: timeout waiting for command=ef s=00 e=64
Jan 17 00:49:56 gsmx07 /kernel: done
Jan 17 00:49:56 gsmx07 /kernel: ad2: ad_timeout: lost disk contact - resetting
Jan 17 00:49:56 gsmx07 /kernel: ata1: resetting devices .. done
Jan 17 00:49:56 gsmx07 /kernel: ad0: ad_timeout: lost disk contact - resetting
Jan 17 00:49:56 gsmx07 /kernel: ata0: resetting devices .. ata0-slave: timeout waiting 
for command=ef s=00 e=64
Jan 17 00:49:56 gsmx07 /kernel: ata0-slave: timeout waiting for command=ef s=00 e=64
Jan 17 00:49:57 gsmx07 /kernel: done
Jan 17 00:49:57 gsmx07 /kernel: ad0: ad_timeout: lost disk contact - resetting
Jan 17 00:49:57 gsmx07 /kernel: ata0: resetting devices .. ata0-slave: timeout waiting 
for command=ef s=00 e=64
Jan 17 00:49:57 gsmx07 /kernel: ata0-slave: timeout waiting for command=ef s=00 e=64
Jan 17 00:49:57 gsmx07 /kernel: done
Jan 17 00:49:57 gsmx07 /kernel: ad2: ad_timeout: lost disk contact - resetting
Jan 17 00:49:57 gsmx07 /kernel: ad2: ad_timeout: trying fallback to PIO mode
Jan 17 00:49:57 gsmx07 /kernel: ata1: resetting devices .. done
Jan 17 00:49:57 gsmx07 /kernel: ad0: ad_timeout: lost disk contact - resetting
Jan 17 00:49:57 gsmx07 /kernel: ad0: ad_timeout: trying fallback to PIO mode
Jan 17 00:49:57 gsmx07 /kernel: ata0: resetting devices .. ata0-slave: timeout waiting 
for command=ef s=00 e=64
Jan 17 00:49:57 gsmx07 /kernel: ata0-slave: timeout waiting for command=ef s=00 e=64
Jan 17 00:49:57 gsmx07 /kernel: done
Jan 17 00:49:57 gsmx07 /kernel: ad0: ad_timeout: lost disk contact - resetting
Jan 17 00:49:57 gsmx07 /kernel: ata0: resetting devices .. ata0-slave: timeout waiting 
for command=ef s=00 e=64
Jan 17 00:49:57 gsmx07 /kernel: ata0-slave: timeout waiting for command=ef s=00 e=64
Jan 17 00:49:57 gsmx07 /kernel: done


The relevant probe messages are:

Jan 14 07:37:02 gsmx07 /kernel: The Regents of the University of California. All 
rights reserved.
Jan 14 07:37:02 gsmx07 /kernel: FreeBSD 4.0-CURRENT #25: Fri Jan 14 07:35:47 EST 2000
Jan 14 07:37:02 gsmx07 /kernel: root@:/3.0/cvs/src/sys/compile/gsmx
Jan 14 07:37:02 gsmx07 /kernel: CPU: Pentium II (267.31-MHz 686-class CPU)
Jan 14 07:37:02 gsmx07 /kernel: Origin = "GenuineIntel"  Id = 0x633  Stepping = 3
Jan 14 07:37:02 gsmx07 /kernel: pcib0: <Intel 82443LX (440 LX) host to PCI bridge> on 
motherboard
Jan 14 07:37:02 gsmx07 /kernel: pci0: <PCI bus> on pcib0
Jan 14 07:37:02 gsmx07 /kernel: pcib1: <Intel 82443LX (440 LX) PCI-PCI (AGP) bridge> 
at device 1.0 on pci0
Jan 14 07:37:02 gsmx07 /kernel: pci1: <PCI bus> on pcib1
Jan 14 07:37:02 gsmx07 /kernel: isab0: <Intel 82371AB PCI to ISA bridge> at device 7.0 
on pci0
Jan 14 07:37:02 gsmx07 /kernel: isa0: <ISA bus> on isab0
Jan 14 07:37:02 gsmx07 /kernel: ata-pci0: <Intel PIIX4 ATA-33 controller> port 
0xf000-0xf00f at device 7.1 on pci0
Jan 14 07:37:02 gsmx07 /kernel: ata-pci0: Busmastering DMA supported
Jan 14 07:37:02 gsmx07 /kernel: ata0 at 0x01f0 irq 14 on ata-pci0
Jan 14 07:37:02 gsmx07 /kernel: ata1 at 0x0170 irq 15 on ata-pci0
Jan 14 07:37:02 gsmx07 /kernel: ata-isa0: already registered as ata0
Jan 14 07:37:02 gsmx07 /kernel: ata-isa1: already registered as ata1
Jan 14 07:37:02 gsmx07 /kernel: ad0: <FUJITSU MPB3064ATU E/4010> ATA-3 disk at ata0 as 
master
Jan 14 07:37:02 gsmx07 /kernel: ad0: 6187MB (12672450 sectors), 13410 cyls, 15 heads, 
63 S/T, 512 B/S
Jan 14 07:37:02 gsmx07 /kernel: ad0: 16 secs/int, 1 depth queue, UDMA33
Jan 14 07:37:02 gsmx07 /kernel: ad2: <QUANTUM FIREBALL_TM1280A/A6B.2D00> ATA-0 disk at 
ata1 as master
Jan 14 07:37:02 gsmx07 /kernel: ad2: 1222MB (2503872 sectors), 2484 cyls, 16 heads, 63 
S/T, 512 B/S
Jan 14 07:37:02 gsmx07 /kernel: ad2: 16 secs/int, 1 depth queue, WDMA2
Jan 14 07:37:02 gsmx07 /kernel: acd0: <CD-ROM CDU611/2.0a> CDROM drive at ata0 as 
slave 
Jan 14 07:37:02 gsmx07 /kernel: acd0: read 1723KB/s (1723KB/s), 256KB buffer, PIO4
Jan 14 07:37:02 gsmx07 /kernel: acd0: Reads: CD-R, CD-RW, CD-DA stream
Jan 14 07:37:02 gsmx07 /kernel: acd0: Audio: play, 16 volume levels
Jan 14 07:37:02 gsmx07 /kernel: acd0: Mechanism: ejectable tray
Jan 14 07:37:02 gsmx07 /kernel: acd0: Medium: no/blank disc inside, unlocked

The config file is:
# ATA and ATAPI devices
device          ata0    at isa? port IO_WD1 irq 14
device          ata1    at isa? port IO_WD2 irq 15
device          ata2
device          atadisk0        # ATA disk drives
device          atapicd0        # ATAPI CDROM drives
options         ATA_STATIC_ID           #Static device numbering


Does anyone have any suggestions?

Peter


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