xsane and gscan2pdf hang disk

L

LJackson

Hi,

Well, this is a pain.

I am attempting to use graphics/xsane and graphics/gscan2pdf on a FreeBSD 10.2 Release system with a x11/mate desktop and zfs on root.
Code: 
% uname -a
FreeBSD Dad 10.2-RELEASE-p9 FreeBSD 10.2-RELEASE-p9 #0: Thu Jan 14 01:32:46 UTC 2016  root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  amd64



Unfortunately, both appear to hang during writes to the hard drive. Both applications run normally until an attempt is made to save a document. For example, for graphics/gscan2pdf, the file dialog will appear and works normally until a save is performed. Then the dialog becomes unresponsive except it can be moved and the title bar maximize button works; selecting the title bar close button doesn't. The application itself still appears to work and closing the application will close the file dialog.

Other GUI based applications (LibreOffice Writer, Firefox, Chromium, etc) start exhibiting the same file dialog problem when attempting to perform a save. Additionally, exiting the desktop fails and when the system is shutdown, the shutdown stalls on "Writing entropy file."

pkg check -d appears to indicate packages are ok.

Code: 
# pkg check -d
Checking all packages: 100%


System patches were applied and the ports and were refreshed around Feb 14. UPDATING doesn't appear to comment on either xsane or gscan2pdf. With just a few exceptions, almost all the packages were built from ports.

Performing a ps ald reveals gscan2pdf has a child zombie process, which it didn't have before attempting the save file.

Normally I would give you some actual output here, but saving the data is problematic.

Performing a kill, kill -KILL, or pkill -KILL -f defunct appear to have no effect.

Except for this problem, the system appears stable and functional.

Why is saving the data problematic? Well, while testing I found saves to the hard drive would disappear on reboot. For example, gscan2pdf started having issues while opening files too. Once that happened the GUI apps became more unstable and more unresponsive over time.

Working in terminal windows and other ttys still worked, but saves to the hard drive disappeared on reboot. For example, I would use ee to enter text and output, do a save and verify the file was created and the text typed was there. However, on reboot, the files no longer existed. I tried using a memory stick, but the text in the file got wiped.

When gscan2pdf had issues opening files, the system console would report

Code: 
ata2: FAILURE - odd-sized DMA transfer attempt 5%2
ata2: <some message I forgot to write down>
ata2: FAILURE - odd-sized DMA transfer attempt 5%2
ata2: <some message I forgot to write down>
ata2: FAILURE - odd-sized DMA transfer attempt 5%2
ata2: <some message I forgot to write down>
ata2: FAILURE - odd-sized DMA transfer attempt 5%2
ata2: <some message I forgot to write down>
ata4: already running!

zfs reports no errors, however.

I haven't yet tried scanning without the GUI front-ends.

Any thoughts on how to proceed or what the problem may be?
 
Those errors are strange, and would be unlikely to be caused by applications. I use xsane from time to time without problems, so my initial guess would be a hardware or system setup problem. More accurate error messages would be good step.
 
Check the SMART entries of the disc in question. If the write does not go through and the file is removed again, there is no error in the ZFS data set. And check the cables.
 
My problem appears to be very much as found by tobik, but with a twist.

I was finally able to get data by auto-mounting a memory stick at boot time and then waiting several minutes until the data was flushed to the stick.

Without running Mate, at the console I could recreate the problem using scanimage -L.

Code: 
root@Dad:/ # scanimage -L  
device `hpaio:/net/HP_LaserJet_3200?ip=10.0.0.204' is a Hewlett-Packard HP_LaserJet_3200 all-in-one

The console would then receive the ata error messages.

Code: 
Copyright (c) 1992-2015 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 is a registered trademark of The FreeBSD Foundation.
FreeBSD 10.2-RELEASE-p9 #0: Thu Jan 14 01:32:46 UTC 2016
  root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64
FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final 208032) 20140512
VT: running with driver "vga".
module_register: module at91_mci/mmc already exists!
Module at91_mci/mmc failed to register: 17
module_register: module sdhci_bcm/mmc already exists!
Module sdhci_bcm/mmc failed to register: 17
module_register: module sdhci_fdt/mmc already exists!
Module sdhci_fdt/mmc failed to register: 17
module_register: module sdhci_imx/mmc already exists!
Module sdhci_imx/mmc failed to register: 17
module_register: module sdhci_pci/mmc already exists!
Module sdhci_pci/mmc failed to register: 17
module_register: module sdhci_ti/mmc already exists!
Module sdhci_ti/mmc failed to register: 17
module_register: module ti_mmchs/mmc already exists!
Module ti_mmchs/mmc failed to register: 17
module_register: module mmc/mmcsd already exists!
Module mmc/mmcsd failed to register: 17
CPU: Intel(R) Core(TM) i7 CPU  920  @ 2.67GHz (2670.06-MHz K8-class CPU)
  Origin="GenuineIntel"  Id=0x106a5  Family=0x6  Model=0x1a  Stepping=5
  Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0x98e3bd<SSE3,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,POPCNT>
  AMD Features=0x28100800<SYSCALL,NX,RDTSCP,LM>
  AMD Features2=0x1<LAHF>
  VT-x: PAT,HLT,MTF,PAUSE,EPT,VPID
  TSC: P-state invariant, performance statistics
real memory  = 25769803776 (24576 MB)
avail memory = 24910798848 (23756 MB)
Event timer "LAPIC" quality 400
ACPI APIC Table: <091911 APIC1516>
FreeBSD/SMP: Multiprocessor System Detected: 8 CPUs
FreeBSD/SMP: 1 package(s) x 4 core(s) x 2 SMT threads
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1
 cpu2 (AP): APIC ID:  2
 cpu3 (AP): APIC ID:  3
 cpu4 (AP): APIC ID:  4
 cpu5 (AP): APIC ID:  5
 cpu6 (AP): APIC ID:  6
 cpu7 (AP): APIC ID:  7
ioapic0 <Version 2.0> irqs 0-23 on motherboard
ioapic1 <Version 2.0> irqs 24-47 on motherboard
random: <Software, Yarrow> initialized
module_register_init: MOD_LOAD (vesa, 0xffffffff80db8ea0, 0) error 19
kbd1 at kbdmux0
acpi0: <091911 RSDT1516> on motherboard
acpi0: Power Button (fixed)
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
cpu2: <ACPI CPU> on acpi0
cpu3: <ACPI CPU> on acpi0
cpu4: <ACPI CPU> on acpi0
cpu5: <ACPI CPU> on acpi0
cpu6: <ACPI CPU> on acpi0
cpu7: <ACPI CPU> on acpi0
attimer0: <AT timer> port 0x40-0x43 irq 0 on acpi0
Timecounter "i8254" frequency 1193182 Hz quality 0
Event timer "i8254" frequency 1193182 Hz quality 100
atrtc0: <AT realtime clock> port 0x70-0x71 irq 8 on acpi0
Event timer "RTC" frequency 32768 Hz quality 0
hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0
Timecounter "HPET" frequency 14318180 Hz quality 950
Event timer "HPET" frequency 14318180 Hz quality 350
Event timer "HPET1" frequency 14318180 Hz quality 340
Event timer "HPET2" frequency 14318180 Hz quality 340
Event timer "HPET3" frequency 14318180 Hz quality 340
Timecounter "ACPI-fast" frequency 3579545 Hz quality 900
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib1: <ACPI PCI-PCI bridge> at device 1.0 on pci0
pci1: <ACPI PCI bus> on pcib1
pcib2: <ACPI PCI-PCI bridge> at device 3.0 on pci0
pci2: <ACPI PCI bus> on pcib2
vgapci0: <VGA-compatible display> port 0xbc00-0xbc7f mem 0xfa000000-0xfaffffff,0xd0000000-0xdfffffff,0xf8000000-0xf9ffffff irq 24 at device 0.0 on pci2
nvidia0: <GeForce 9600 GT> on vgapci0
vgapci0: child nvidia0 requested pci_enable_io
vgapci0: child nvidia0 requested pci_enable_io
vgapci0: Boot video device
pcib3: <ACPI PCI-PCI bridge> at device 7.0 on pci0
pci3: <ACPI PCI bus> on pcib3
pci0: <base peripheral, interrupt controller> at device 20.0 (no driver attached)
pci0: <base peripheral, interrupt controller> at device 20.1 (no driver attached)
pci0: <base peripheral, interrupt controller> at device 20.2 (no driver attached)
pci0: <base peripheral, interrupt controller> at device 20.3 (no driver attached)
uhci0: <Intel 82801JI (ICH10) USB controller USB-D> port 0xa800-0xa81f irq 16 at device 26.0 on pci0
uhci0: LegSup = 0x2f00
usbus0 on uhci0
uhci1: <Intel 82801JI (ICH10) USB controller USB-E> port 0xa880-0xa89f irq 21 at device 26.1 on pci0
uhci1: LegSup = 0x2f00
usbus1 on uhci1
uhci2: <Intel 82801JI (ICH10) USB controller USB-F> port 0xac00-0xac1f irq 19 at device 26.2 on pci0
uhci2: LegSup = 0x2f00
usbus2 on uhci2
ehci0: <Intel 82801JI (ICH10) USB 2.0 controller USB-B> mem 0xf7fff000-0xf7fff3ff irq 18 at device 26.7 on pci0
usbus3: EHCI version 1.0
usbus3 on ehci0
hdac0: <Intel 82801JI HDA Controller> mem 0xf7ff8000-0xf7ffbfff irq 22 at device 27.0 on pci0
pcib4: <ACPI PCI-PCI bridge> irq 17 at device 28.0 on pci0
pci7: <ACPI PCI bus> on pcib4
pcib5: <ACPI PCI-PCI bridge> irq 18 at device 28.2 on pci0
pci6: <ACPI PCI bus> on pcib5
re0: <RealTek 8168/8111 B/C/CP/D/DP/E/F/G PCIe Gigabit Ethernet> port 0xe800-0xe8ff mem 0xf6eff000-0xf6efffff,0xf6ee0000-0xf6eeffff irq 18 at device 0.0 on pci6
re0: Using 1 MSI-X message
re0: Chip rev. 0x3c000000
re0: MAC rev. 0x00400000
miibus0: <MII bus> on re0
rgephy0: <RTL8169S/8110S/8211 1000BASE-T media interface> PHY 1 on miibus0
rgephy0:  none, 10baseT, 10baseT-FDX, 10baseT-FDX-flow, 100baseTX, 100baseTX-FDX, 100baseTX-FDX-flow, 1000baseT, 1000baseT-master, 1000baseT-FDX, 1000baseT-FDX-master, 1000baseT-FDX-flow, 1000baseT-FDX-flow-master, auto, auto-flow
re0: Using defaults for TSO: 65518/35/2048
re0: Ethernet address: 00:24:8c:58:f8:b7
pcib6: <ACPI PCI-PCI bridge> irq 19 at device 28.3 on pci0
pci5: <ACPI PCI bus> on pcib6
pci5: <serial bus, FireWire> at device 0.0 (no driver attached)
pcib7: <ACPI PCI-PCI bridge> irq 17 at device 28.4 on pci0
pci4: <ACPI PCI bus> on pcib7
atapci0: <JMicron JMB363 UDMA133 controller> port 0xcc00-0xcc07,0xc880-0xc883,0xc800-0xc807,0xc480-0xc483,0xc400-0xc40f mem 0xfbcfe000-0xfbcfffff irq 16 at device 0.0 on pci4
ahci0: <JMicron JMB363 AHCI SATA controller> at channel -1 on atapci0
ahci0: AHCI v1.00 with 2 3Gbps ports, Port Multiplier supported
ahci0: quirks=0x1<NOFORCE>
ahcich0: <AHCI channel> at channel 0 on ahci0
ahcich1: <AHCI channel> at channel 1 on ahci0
ata2: <ATA channel> at channel 0 on atapci0
uhci3: <Intel 82801JI (ICH10) USB controller USB-A> port 0xa080-0xa09f irq 23 at device 29.0 on pci0
uhci3: LegSup = 0x2f00
usbus4 on uhci3
uhci4: <Intel 82801JI (ICH10) USB controller USB-B> port 0xa400-0xa41f irq 19 at device 29.1 on pci0
uhci4: LegSup = 0x2f00
usbus5 on uhci4
uhci5: <Intel 82801JI (ICH10) USB controller USB-C> port 0xa480-0xa49f irq 18 at device 29.2 on pci0
uhci5: LegSup = 0x2f00
usbus6 on uhci5
ehci1: <Intel 82801JI (ICH10) USB 2.0 controller USB-A> mem 0xf7ffe000-0xf7ffe3ff irq 23 at device 29.7 on pci0
usbus7: EHCI version 1.0
usbus7 on ehci1
pcib8: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci8: <ACPI PCI bus> on pcib8
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci1: <Intel ICH10 SATA300 controller> port 0x9000-0x9007,0x8c00-0x8c03,0x8880-0x8887,0x8800-0x8803,0x8480-0x848f,0x8400-0x840f irq 20 at device 31.2 on pci0
ata3: <ATA channel> at channel 0 on atapci1
ata4: <ATA channel> at channel 1 on atapci1
atapci2: <Intel ICH10 SATA300 controller> port 0xa000-0xa007,0x9c00-0x9c03,0x9880-0x9887,0x9800-0x9803,0x9480-0x948f,0x9400-0x940f irq 20 at device 31.5 on pci0
ata5: <ATA channel> at channel 0 on atapci2
ata6: <ATA channel> at channel 1 on atapci2
acpi_button0: <Power Button> on acpi0
qpi0: <QPI system bus> on motherboard
pcib9: <QPI Host-PCI bridge> pcibus 255 on qpi0
pci255: <PCI bus> on pcib9
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
ppc0: cannot reserve I/O port range
coretemp0: <CPU On-Die Thermal Sensors> on cpu0
est0: <Enhanced SpeedStep Frequency Control> on cpu0
coretemp1: <CPU On-Die Thermal Sensors> on cpu1
est1: <Enhanced SpeedStep Frequency Control> on cpu1
coretemp2: <CPU On-Die Thermal Sensors> on cpu2
est2: <Enhanced SpeedStep Frequency Control> on cpu2
coretemp3: <CPU On-Die Thermal Sensors> on cpu3
est3: <Enhanced SpeedStep Frequency Control> on cpu3
coretemp4: <CPU On-Die Thermal Sensors> on cpu4
est4: <Enhanced SpeedStep Frequency Control> on cpu4
coretemp5: <CPU On-Die Thermal Sensors> on cpu5
est5: <Enhanced SpeedStep Frequency Control> on cpu5
coretemp6: <CPU On-Die Thermal Sensors> on cpu6
est6: <Enhanced SpeedStep Frequency Control> on cpu6
coretemp7: <CPU On-Die Thermal Sensors> on cpu7
est7: <Enhanced SpeedStep Frequency Control> on cpu7
random: unblocking device.
usbus0: 12Mbps Full Speed USB v1.0
fuse-freebsd: version 0.4.4, FUSE ABI 7.8
ZFS filesystem version: 5
ZFS storage pool version: features support (5000)
Timecounters tick every 1.000 msec
vboxdrv: fAsync=0 offMin=0x474 offMax=0x6b0
hdacc0: <Analog Devices AD1989B HDA CODEC> at cad 0 on hdac0
hdaa0: <Analog Devices AD1989B Audio Function Group> at nid 1 on hdacc0
pcm0: <Analog Devices AD1989B (Analog 7.1/2.0)> at nid 18,36,22,37 and 23,21,24,20 on hdaa0
pcm1: <Analog Devices AD1989B (Front Analog Headphones)> at nid 17 on hdaa0
pcm2: <Analog Devices AD1989B (Rear Digital)> at nid 27 on hdaa0
pcm3: <Analog Devices AD1989B (Digital)> at nid 29 on hdaa0
usbus1: 12Mbps Full Speed USB v1.0
usbus2: 12Mbps Full Speed USB v1.0
usbus3: 480Mbps High Speed USB v2.0
ugen0.1: <Intel> at usbus0
uhub0: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus0
ugen1.1: <Intel> at usbus1
uhub1: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus1
ugen2.1: <Intel> at usbus2
uhub2: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus2
ugen3.1: <Intel> at usbus3
uhub3: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus3
usbus4: 12Mbps Full Speed USB v1.0
usbus5: 12Mbps Full Speed USB v1.0
usbus6: 12Mbps Full Speed USB v1.0
ugen4.1: <Intel> at usbus4
uhub4: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus4
ugen5.1: <Intel> at usbus5
uhub5: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus5
ugen6.1: <Intel> at usbus6
uhub6: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus6
usbus7: 480Mbps High Speed USB v2.0
ugen7.1: <Intel> at usbus7
uhub7: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus7
uhub0: 2 ports with 2 removable, self powered
uhub1: 2 ports with 2 removable, self powered
uhub2: 2 ports with 2 removable, self powered
uhub4: 2 ports with 2 removable, self powered
uhub5: 2 ports with 2 removable, self powered
uhub6: 2 ports with 2 removable, self powered
ada0 at ata3 bus 0 scbus3 target 1 lun 0
ada0: <WDC WD1001FALS-00E3A0 05.01D05> ATA8-ACS SATA 2.x device
ada0: Serial Number WD-WCATR0294142
cd0 at ata2 bus 0 scbus2 target 0 lun 0
cd0: <Memorex 16X-DDL-IN 1.A3> Removable CD-ROM SCSI device
cd0: 33.300MB/s transfers (UDMA2, ATAPI 12bytes, PIO 65534bytes)
cd0: Attempt to query device size failed: NOT READY, Medium not present
ada0: 300.000MB/s transfers (SATA 2.x, UDMA5, PIO 8192bytes)
ada0: 953869MB (1953525168 512 byte sectors: 16H 63S/T 16383C)
ada0: Previously was known as ad11
ada1 at ata4 bus 0 scbus4 target 0 lun 0
ada1: <WDC WD1002FAEX-00Z3A0 05.01D05> ATA8-ACS SATA 3.x device
ada1: Serial Number WD-WCATRA972664
ada1: 300.000MB/s transfers (SATA 2.x, UDMA5, PIO 8192bytes)
ada1: 953869MB (1953525168 512 byte sectors: 16H 63S/T 16383C)
ada1: Previously was known as ad12
ada2 at ata4 bus 0 scbus4 target 1 lun 0
ada2: <ST500DM002-1BD142 KC45> ATA8-ACS SATA 3.x device
ada2: Serial Number Z3T6E3LW
ada2: 300.000MB/s transfers (SATA 2.x, UDMA5, PIO 8192bytes)
ada2: 476940MB (976773168 512 byte sectors: 16H 63S/T 16383C)
ada2: quirks=0x1<4K>
ada2: Previously was known as ad13
ada3 at ata5 bus 0 scbus5 target 0 lun 0
ada3: <HDS722525VLSA80 V36OA60A> ATA-6 SATA device
ada3: Serial Number VNRJ3EC6CNB76M
ada3: 150.000MB/s transfers (SATA 1.x, UDMA5, PIO 8192bytes)
ada3: 238475MB (488397168 512 byte sectors: 16H 63S/T 16383C)
ada3: Previously was known as ad14
SMP: AP CPU #1 Launched!
SMP: AP CPU #7 Launched!
SMP: AP CPU #2 Launched!
SMP: AP CPU #6 Launched!
SMP: AP CPU #4 Launched!
SMP: AP CPU #3 Launched!
SMP: AP CPU #5 Launched!
Timecounter "TSC-low" frequency 1335028502 Hz quality 1000
Root mount waiting for: usbus7 usbus3
uhub7: 6 ports with 6 removable, self powered
uhub3: 6 ports with 6 removable, self powered
Root mount waiting for: usbus7 usbus3
ugen7.2: <vendor 0x0424> at usbus7
uhub8: <vendor 0x0424 product 0x2504, class 9/0, rev 2.00/0.01, addr 2> on usbus7
uhub8: MTT enabled
uhub8: 4 ports with 4 removable, self powered
Root mount waiting for: usbus7
ugen1.2: <Logitech> at usbus1
ukbd0: <Logitech Logitech Illuminated Keyboard, class 0/0, rev 2.00/55.03, addr 2> on usbus1
kbd2 at ukbd0
Root mount waiting for: usbus7
ugen1.3: <Logitech> at usbus1
ugen7.3: <Verbatim> at usbus7
umass0: <Verbatim STORE N GO, class 0/0, rev 2.00/1.00, addr 3> on usbus7
umass0:  SCSI over Bulk-Only; quirks = 0xc100
umass0:7:0:-1: Attached to scbus7
da0 at umass-sim0 bus 0 scbus7 target 0 lun 0
da0: <Verbatim STORE N GO 5.00> Removable Direct Access SCSI device
da0: Serial Number 07AA1007830F62B6
da0: 40.000MB/s transfers
da0: 1910MB (3911680 512 byte sectors: 255H 63S/T 243C)
da0: quirks=0x2<NO_6_BYTE>
Root mount waiting for: usbus7
ugen7.4: <vendor 0x058f> at usbus7
umass1: <vendor 0x058f product 0x6362, class 0/0, rev 2.00/1.00, addr 4> on usbus7
umass1:  SCSI over Bulk-Only; quirks = 0x4001
umass1:8:1:-1: Attached to scbus8
Trying to mount root from zfs:rpool/bootenv/R10.2 []...
da1 at umass-sim1 bus 1 scbus8 target 0 lun 0
da1: <Generic USB SD Reader 1.00> Removable Direct Access SCSI device
da1: 40.000MB/s transfers
da1: Attempt to query device size failed: NOT READY, Medium not present
da1: quirks=0x2<NO_6_BYTE>
da2 at umass-sim1 bus 1 scbus8 target 0 lun 1
da2: <Generic USB CF Reader 1.01> Removable Direct Access SCSI device
da2: 40.000MB/s transfers
da2: Attempt to query device size failed: NOT READY, Medium not present
da2: quirks=0x2<NO_6_BYTE>
da3 at umass-sim1 bus 1 scbus8 target 0 lun 2
da3: <Generic USB SM Reader 1.02> Removable Direct Access SCSI device
da3: 40.000MB/s transfers
da3: Attempt to query device size failed: NOT READY, Medium not present
da3: quirks=0x2<NO_6_BYTE>
da4 at umass-sim1 bus 1 scbus8 target 0 lun 3
da4: <Generic USB MS Reader 1.03> Removable Direct Access SCSI device
da4: 40.000MB/s transfers
da4: Attempt to query device size failed: NOT READY, Medium not present
da4: quirks=0x2<NO_6_BYTE>
ugen5.2: <hp> at usbus5
tap0: Ethernet address: 00:bd:fd:38:00:00
tap1: Ethernet address: 00:bd:03:39:00:01
bridge0: Ethernet address: 02:b0:3d:32:65:00
uhid0: <Logitech Logitech Illuminated Keyboard, class 0/0, rev 2.00/55.03, addr 2> on usbus1
ulpt0: <hp photosmart 7700 series, class 0/0, rev 2.00/1.00, addr 2> on usbus5
ulpt0: using bi-directional mode
ums0: <Logitech USB-PS2 Optical Mouse, class 0/0, rev 2.00/27.20, addr 3> on usbus1
ums0: 8 buttons and [XYZT] coordinates ID=0
WARNING: /usr/home/chuck/.wine-pipelight was not properly dismounted
ata2: FAILURE - odd-sized DMA transfer attempt 5 % 2
ata2: setting up DMA failed
ata2: FAILURE - odd-sized DMA transfer attempt 5 % 2
ata2: setting up DMA failed
ata2: FAILURE - odd-sized DMA transfer attempt 5 % 2
ata2: setting up DMA failed
ata2: FAILURE - odd-sized DMA transfer attempt 5 % 2
ata2: setting up DMA failed

The system at this point isn't totally useless. I could still save files to the memory stick. If I start Mate the elusive ata4: already running! appears and then the system becomes truly unstable.

Since others appear to have had this same, or very similar, problem in the past I thought it wise to file a problem report especially since when this system is running FreeBSD 8.0 and the drives are ad*, xsane and gscan2pdf work just fine.
 
Some testing uncovered the microtek and microtek2 devices in graphics/sane-backends appear to be responsible for these errors. Microtek2 is responsible for the
Code: 
ata2: FAILURE - odd-sized DMA transfer attempt 5 % 2
ata2: setting up DMA failed
and microtek appears to be responsible for the
Code: 
ata4: already running!

If both are commented out in usr/local/etc/sane.d/dll.conf then these errors go away and the system appears to behave normally.

As an FYI, if the port is built without doing a clean, i.e., make install, then the microtek source files can be found in /usr/ports/graphics/sane-backends/work/sane-backends-1.0.25/backend along with dll.conf and the dll source files.
 
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