Okay, I've got the Intel NIC in there and having the same problem. Lots of files play just fine and others skip. Some more information:
Code:
Feb 6 18:13:01 nas syslogd: kernel boot file is /boot/kernel/kernel
Feb 6 18:13:01 nas kernel: Copyright (c) 1992-2012 The FreeBSD Project.
Feb 6 18:13:01 nas kernel: Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
Feb 6 18:13:01 nas kernel: The Regents of the University of California. All rights reserved.
Feb 6 18:13:01 nas kernel: FreeBSD is a registered trademark of The FreeBSD Foundation.
Feb 6 18:13:01 nas kernel: FreeBSD 8.3-RELEASE-p5 #2 r244158M: Wed Dec 12 10:04:42 PST 2012
Feb 6 18:13:01 nas kernel: root@build.ixsystems.com:/home/jpaetzel/8.3.0/os-base/amd64/usr/home/jpaetzel/8.3.0/FreeBSD/src/sys/FREENAS.amd64 amd64
Feb 6 18:13:01 nas kernel: Timecounter "i8254" frequency 1193182 Hz quality 0
Feb 6 18:13:01 nas kernel: CPU: Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz (2997.01-MHz K8-class CPU)
Feb 6 18:13:01 nas kernel: Origin = "GenuineIntel" Id = 0x1067a Family = 6 Model = 17 Stepping = 10
Feb 6 18:13:01 nas kernel: 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>
Feb 6 18:13:01 nas kernel: Features2=0x408e3fd<SSE3,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,XSAVE>
Feb 6 18:13:01 nas kernel: AMD Features=0x20100800<SYSCALL,NX,LM>
Feb 6 18:13:01 nas kernel: AMD Features2=0x1<LAHF>
Feb 6 18:13:01 nas kernel: TSC: P-state invariant
Feb 6 18:13:01 nas kernel: real memory = 8589934592 (8192 MB)
Feb 6 18:13:01 nas kernel: avail memory = 8258220032 (7875 MB)
Feb 6 18:13:01 nas kernel: ACPI APIC Table: <A_M_I_ OEMAPIC >
Feb 6 18:13:01 nas kernel: FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
Feb 6 18:13:01 nas kernel: FreeBSD/SMP: 1 package(s) x 2 core(s)
Feb 6 18:13:01 nas kernel: cpu0 (BSP): APIC ID: 0
Feb 6 18:13:01 nas kernel: cpu1 (AP): APIC ID: 1
Feb 6 18:13:01 nas kernel: WARNING: VIMAGE (virtualized network stack) is a highly experimental feature.
Feb 6 18:13:01 nas kernel: ioapic0 <Version 2.0> irqs 0-23 on motherboard
Feb 6 18:13:01 nas kernel: kbd1 at kbdmux0
Feb 6 18:13:01 nas kernel: hpt27xx: RocketRAID 27xx controller driver v1.0 (Dec 12 2012 10:04:31)
Feb 6 18:13:01 nas kernel: cryptosoft0: <software crypto> on motherboard
Feb 6 18:13:01 nas kernel: aesni0: No AESNI support.
Feb 6 18:13:01 nas kernel: acpi0: <A_M_I_ OEMXSDT> on motherboard
Feb 6 18:13:01 nas kernel: acpi0: [ITHREAD]
Feb 6 18:13:01 nas kernel: acpi0: Power Button (fixed)
Feb 6 18:13:01 nas kernel: acpi0: reservation of 0, a0000 (3) failed
Feb 6 18:13:01 nas kernel: acpi0: reservation of 100000, dff00000 (3) failed
Feb 6 18:13:01 nas kernel: Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
Feb 6 18:13:01 nas kernel: acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
Feb 6 18:13:01 nas kernel: cpu0: <ACPI CPU> on acpi0
Feb 6 18:13:01 nas kernel: cpu1: <ACPI CPU> on acpi0
Feb 6 18:13:01 nas kernel: pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
Feb 6 18:13:01 nas kernel: pci0: <ACPI PCI bus> on pcib0
Feb 6 18:13:01 nas kernel: pcib1: <ACPI PCI-PCI bridge> irq 16 at device 1.0 on pci0
Feb 6 18:13:01 nas kernel: pci1: <ACPI PCI bus> on pcib1
Feb 6 18:13:01 nas kernel: vgapci0: <VGA-compatible display> port 0xcc00-0xcc7f mem 0xfd000000-0xfdffffff,0xf0000000-0xf7ffffff,0xf8000000-0xf9ffffff irq 16 at device 0.0 on pci1
Feb 6 18:13:01 nas kernel: pci1: <multimedia, HDA> at device 0.1 (no driver attached)
Feb 6 18:13:01 nas kernel: uhci0: <Intel 82801JI (ICH10) USB controller USB-D> port 0xb800-0xb81f irq 16 at device 26.0 on pci0
Feb 6 18:13:01 nas kernel: uhci0: [ITHREAD]
Feb 6 18:13:01 nas kernel: usbus0: <Intel 82801JI (ICH10) USB controller USB-D> on uhci0
Feb 6 18:13:01 nas kernel: uhci1: <Intel 82801JI (ICH10) USB controller USB-E> port 0xb880-0xb89f irq 21 at device 26.1 on pci0
Feb 6 18:13:01 nas kernel: uhci1: [ITHREAD]
Feb 6 18:13:01 nas kernel: usbus1: <Intel 82801JI (ICH10) USB controller USB-E> on uhci1
Feb 6 18:13:01 nas kernel: uhci2: <Intel 82801JI (ICH10) USB controller USB-F> port 0xbc00-0xbc1f irq 18 at device 26.2 on pci0
Feb 6 18:13:01 nas kernel: uhci2: [ITHREAD]
Feb 6 18:13:01 nas kernel: usbus2: <Intel 82801JI (ICH10) USB controller USB-F> on uhci2
Feb 6 18:13:01 nas kernel: ehci0: <Intel 82801JI (ICH10) USB 2.0 controller USB-B> mem 0xfcfffc00-0xfcffffff irq 18 at device 26.7 on pci0
Feb 6 18:13:01 nas kernel: ehci0: [ITHREAD]
Feb 6 18:13:01 nas kernel: usbus3: EHCI version 1.0
Feb 6 18:13:01 nas kernel: usbus3: <Intel 82801JI (ICH10) USB 2.0 controller USB-B> on ehci0
Feb 6 18:13:01 nas kernel: pcib2: <ACPI PCI-PCI bridge> irq 17 at device 28.0 on pci0
Feb 6 18:13:01 nas kernel: pci4: <ACPI PCI bus> on pcib2
Feb 6 18:13:01 nas kernel: pcib3: <ACPI PCI-PCI bridge> irq 16 at device 28.1 on pci0
Feb 6 18:13:01 nas kernel: pci3: <ACPI PCI bus> on pcib3
Feb 6 18:13:01 nas kernel: em0: <Intel(R) PRO/1000 Network Connection 7.3.2> port 0xec00-0xec1f mem 0xfebe0000-0xfebfffff,0xfeb00000-0xfeb7ffff,0xfebdc000-0xfebdffff irq 17 at device 0.0 on pci3
Feb 6 18:13:01 nas kernel: em0: Using MSIX interrupts with 3 vectors
Feb 6 18:13:01 nas kernel: em0: [ITHREAD]
Feb 6 18:13:01 nas last message repeated 2 times
Feb 6 18:13:01 nas kernel: em0: Ethernet address: 68:05:ca:10:c9:2e
Feb 6 18:13:01 nas kernel: pcib4: <ACPI PCI-PCI bridge> irq 17 at device 28.4 on pci0
Feb 6 18:13:01 nas kernel: pci2: <ACPI PCI bus> on pcib4
Feb 6 18:13:01 nas kernel: atapci0: <Marvell 88SX6101 UDMA133 controller> port 0xdc00-0xdc07,0xd880-0xd883,0xd800-0xd807,0xd480-0xd483,0xd400-0xd40f mem 0xfeaffc00-0xfeaffdff irq 16 at device 0.0 on pci2
Feb 6 18:13:01 nas kernel: atapci0: [ITHREAD]
Feb 6 18:13:01 nas kernel: ata2: <ATA channel> at channel 0 on atapci0
Feb 6 18:13:01 nas kernel: ata2: [ITHREAD]
Feb 6 18:13:01 nas kernel: uhci3: <Intel 82801JI (ICH10) USB controller USB-A> port 0xb080-0xb09f irq 23 at device 29.0 on pci0
Feb 6 18:13:01 nas kernel: uhci3: [ITHREAD]
Feb 6 18:13:01 nas kernel: usbus4: <Intel 82801JI (ICH10) USB controller USB-A> on uhci3
Feb 6 18:13:01 nas kernel: uhci4: <Intel 82801JI (ICH10) USB controller USB-B> port 0xb400-0xb41f irq 19 at device 29.1 on pci0
Feb 6 18:13:01 nas kernel: uhci4: [ITHREAD]
Feb 6 18:13:01 nas kernel: usbus5: <Intel 82801JI (ICH10) USB controller USB-B> on uhci4
Feb 6 18:13:01 nas kernel: uhci5: <Intel 82801JI (ICH10) USB controller USB-C> port 0xb480-0xb49f irq 18 at device 29.2 on pci0
Feb 6 18:13:01 nas kernel: uhci5: [ITHREAD]
Feb 6 18:13:01 nas kernel: usbus6: <Intel 82801JI (ICH10) USB controller USB-C> on uhci5
Feb 6 18:13:01 nas kernel: ehci1: <Intel 82801JI (ICH10) USB 2.0 controller USB-A> mem 0xfcfff800-0xfcfffbff irq 23 at device 29.7 on pci0
Feb 6 18:13:01 nas kernel: ehci1: [ITHREAD]
Feb 6 18:13:01 nas kernel: usbus7: EHCI version 1.0
Feb 6 18:13:01 nas kernel: usbus7: <Intel 82801JI (ICH10) USB 2.0 controller USB-A> on ehci1
Feb 6 18:13:01 nas kernel: pcib5: <ACPI PCI-PCI bridge> at device 30.0 on pci0
Feb 6 18:13:01 nas kernel: pci5: <ACPI PCI bus> on pcib5
Feb 6 18:13:01 nas kernel: isab0: <PCI-ISA bridge> at device 31.0 on pci0
Feb 6 18:13:01 nas kernel: isa0: <ISA bus> on isab0
Feb 6 18:13:01 nas kernel: ahci0: <Intel ICH10 AHCI SATA controller> port 0xac00-0xac07,0xa880-0xa883,0xa800-0xa807,0xa480-0xa483,0xa400-0xa41f mem 0xfcffe800-0xfcffefff irq 19 at device 31.2 on pci0
Feb 6 18:13:01 nas kernel: ahci0: [ITHREAD]
Feb 6 18:13:01 nas kernel: ahci0: AHCI v1.20 with 6 3Gbps ports, Port Multiplier supported
Feb 6 18:13:01 nas kernel: ahcich0: <AHCI channel> at channel 0 on ahci0
Feb 6 18:13:01 nas kernel: ahcich0: [ITHREAD]
Feb 6 18:13:01 nas kernel: ahcich1: <AHCI channel> at channel 1 on ahci0
Feb 6 18:13:01 nas kernel: ahcich1: [ITHREAD]
Feb 6 18:13:01 nas kernel: ahcich2: <AHCI channel> at channel 2 on ahci0
Feb 6 18:13:01 nas kernel: ahcich2: [ITHREAD]
Feb 6 18:13:01 nas kernel: ahcich3: <AHCI channel> at channel 3 on ahci0
Feb 6 18:13:01 nas kernel: ahcich3: [ITHREAD]
Feb 6 18:13:01 nas kernel: ahcich4: <AHCI channel> at channel 4 on ahci0
Feb 6 18:13:01 nas kernel: ahcich4: [ITHREAD]
Feb 6 18:13:01 nas kernel: ahcich5: <AHCI channel> at channel 5 on ahci0
Feb 6 18:13:01 nas kernel: ahcich5: [ITHREAD]
Feb 6 18:13:01 nas kernel: pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
Feb 6 18:13:01 nas kernel: acpi_button0: <Power Button> on acpi0
Feb 6 18:13:01 nas kernel: atrtc0: <AT realtime clock> port 0x70-0x71 irq 8 on acpi0
Feb 6 18:13:01 nas kernel: acpi_hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0
Feb 6 18:13:01 nas kernel: Timecounter "HPET" frequency 14318180 Hz quality 900
Feb 6 18:13:01 nas kernel: orm0: <ISA Option ROM> at iomem 0xce000-0xcefff on isa0
Feb 6 18:13:01 nas kernel: sc0: <System console> at flags 0x100 on isa0
Feb 6 18:13:01 nas kernel: sc0: VGA <16 virtual consoles, flags=0x300>
Feb 6 18:13:01 nas kernel: vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Feb 6 18:13:01 nas kernel: atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
Feb 6 18:13:01 nas kernel: atkbd0: <AT Keyboard> irq 1 on atkbdc0
Feb 6 18:13:01 nas kernel: kbd0 at atkbd0
Feb 6 18:13:01 nas kernel: atkbd0: [GIANT-LOCKED]
Feb 6 18:13:01 nas kernel: atkbd0: [ITHREAD]
Feb 6 18:13:01 nas kernel: ppc0: cannot reserve I/O port range
Feb 6 18:13:01 nas kernel: coretemp0: <CPU On-Die Thermal Sensors> on cpu0
Feb 6 18:13:01 nas kernel: est0: <Enhanced SpeedStep Frequency Control> on cpu0
Feb 6 18:13:01 nas kernel: p4tcc0: <CPU Frequency Thermal Control> on cpu0
Feb 6 18:13:01 nas kernel: coretemp1: <CPU On-Die Thermal Sensors> on cpu1
Feb 6 18:13:01 nas kernel: est1: <Enhanced SpeedStep Frequency Control> on cpu1
Feb 6 18:13:01 nas kernel: p4tcc1: <CPU Frequency Thermal Control> on cpu1
Feb 6 18:13:01 nas kernel: fuse4bsd: version 0.3.9-pre1, FUSE ABI 7.8
Feb 6 18:13:01 nas kernel: Timecounters tick every 1.000 msec
Feb 6 18:13:01 nas kernel: hpt27xx: no controller detected.
Feb 6 18:13:01 nas kernel: usbus0: 12Mbps Full Speed USB v1.0
Feb 6 18:13:01 nas kernel: usbus1: 12Mbps Full Speed USB v1.0
Feb 6 18:13:01 nas kernel: usbus2: 12Mbps Full Speed USB v1.0
Feb 6 18:13:01 nas kernel: usbus3: 480Mbps High Speed USB v2.0
Feb 6 18:13:01 nas kernel: usbus4: 12Mbps Full Speed USB v1.0
Feb 6 18:13:01 nas kernel: usbus5: 12Mbps Full Speed USB v1.0
Feb 6 18:13:01 nas kernel: usbus6: 12Mbps Full Speed USB v1.0
Feb 6 18:13:01 nas kernel: usbus7: 480Mbps High Speed USB v2.0
Feb 6 18:13:01 nas kernel: ugen0.1: <Intel> at usbus0
Feb 6 18:13:01 nas kernel: uhub0: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus0
Feb 6 18:13:01 nas kernel: ugen1.1: <Intel> at usbus1
Feb 6 18:13:01 nas kernel: uhub1: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus1
Feb 6 18:13:01 nas kernel: ugen2.1: <Intel> at usbus2
Feb 6 18:13:01 nas kernel: uhub2: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus2
Feb 6 18:13:01 nas kernel: ugen3.1: <Intel> at usbus3
Feb 6 18:13:01 nas kernel: uhub3: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus3
Feb 6 18:13:01 nas kernel: ugen4.1: <Intel> at usbus4
Feb 6 18:13:01 nas kernel: uhub4: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus4
Feb 6 18:13:01 nas kernel: ugen5.1: <Intel> at usbus5
Feb 6 18:13:01 nas kernel: uhub5: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus5
Feb 6 18:13:01 nas kernel: ugen6.1: <Intel> at usbus6
Feb 6 18:13:01 nas kernel: uhub6: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus6
Feb 6 18:13:01 nas kernel: ugen7.1: <Intel> at usbus7
Feb 6 18:13:01 nas kernel: uhub7: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus7
Feb 6 18:13:01 nas kernel: uhub0: 2 ports with 2 removable, self powered
Feb 6 18:13:01 nas kernel: uhub1: 2 ports with 2 removable, self powered
Feb 6 18:13:01 nas kernel: uhub2: 2 ports with 2 removable, self powered
Feb 6 18:13:01 nas kernel: uhub4: 2 ports with 2 removable, self powered
Feb 6 18:13:01 nas kernel: uhub5: 2 ports with 2 removable, self powered
Feb 6 18:13:01 nas kernel: uhub6: 2 ports with 2 removable, self powered
Feb 6 18:13:01 nas kernel: uhub3: 6 ports with 6 removable, self powered
Feb 6 18:13:01 nas kernel: uhub7: 6 ports with 6 removable, self powered
Feb 6 18:13:01 nas kernel: ugen7.2: <Kingston> at usbus7
Feb 6 18:13:01 nas kernel: umass0: <Kingston DT 100 G2, class 0/0, rev 2.00/1.00, addr 2> on usbus7
Feb 6 18:13:01 nas kernel: ugen6.2: <vendor 0x099a> at usbus6
Feb 6 18:13:01 nas kernel: uhub8: <vendor 0x099a Two Port Hub, class 9/1, rev 1.10/1.02, addr 2> on usbus6
Feb 6 18:13:01 nas kernel: uhub8: 3 ports with 2 removable, bus powered
Feb 6 18:13:01 nas kernel: ugen6.3: <vendor 0x099a> at usbus6
Feb 6 18:13:01 nas kernel: ukbd0: <vendor 0x099a Multimedia Hub Keyboard, class 0/0, rev 1.10/0.01, addr 3> on usbus6
Feb 6 18:13:01 nas kernel: kbd2 at ukbd0
Feb 6 18:13:01 nas kernel: ums0: <vendor 0x099a Multimedia Hub Keyboard, class 0/0, rev 1.10/0.01, addr 3> on usbus6
Feb 6 18:13:01 nas kernel: ada0 at ahcich0 bus 0 scbus1 target 0 lun 0
Feb 6 18:13:01 nas kernel: ada0: <WDC WD30EFRX-68AX9N0 80.00A80> ATA-9 SATA 3.x device
Feb 6 18:13:01 nas kernel: ada0: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
Feb 6 18:13:01 nas kernel: ada0: Command Queueing enabled
Feb 6 18:13:01 nas kernel: ada0: 2861588MB (5860533168 512 byte sectors: 16H 63S/T 16383C)
Feb 6 18:13:01 nas kernel: ada1 at ahcich1 bus 0 scbus2 target 0 lun 0
Feb 6 18:13:01 nas kernel: ada1: <WDC WD30EFRX-68AX9N0 80.00A80> ATA-9 SATA 3.x device
Feb 6 18:13:01 nas kernel: ada1: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
Feb 6 18:13:01 nas kernel: ada1: Command Queueing enabled
Feb 6 18:13:01 nas kernel: ada1: 2861588MB (5860533168 512 byte sectors: 16H 63S/T 16383C)
Feb 6 18:13:01 nas kernel: da0 at umass-sim0 bus 0 scbus7 target 0 lun 0
Feb 6 18:13:01 nas kernel: da0: <Kingston DT 100 G2 PMAP> Removable Direct Access SCSI-4 device
Feb 6 18:13:01 nas kernel: da0: 40.000MB/s transfers
Feb 6 18:13:01 nas kernel: da0: 7441MB (15240576 512 byte sectors: 255H 63S/T 948C)
Feb 6 18:13:01 nas kernel: cd0 at ata2 bus 0 scbus0 target 1 lun 0
Feb 6 18:13:01 nas kernel: cd0: <SAMSUNG CD-R/RW SW-252S R901> Removable CD-ROM SCSI-0 device
Feb 6 18:13:01 nas kernel: cd0: 33.300MB/s transfers (UDMA2, ATAPI 12bytes, PIO 65534bytes)
Feb 6 18:13:01 nas kernel: cd0: Attempt to query device size failed: NOT READY, Medium not present - tray closedSMP: AP CPU #1 Launched!
Feb 6 18:13:01 nas kernel:
Feb 6 18:13:01 nas kernel: GEOM: da0s1: geometry does not match label (16h,63s != 255h,63s).
Feb 6 18:13:01 nas kernel: Trying to mount root from ufs:/dev/ufs/FreeNASs1a
Feb 6 18:13:01 nas kernel: ZFS filesystem version 5
Feb 6 18:13:01 nas kernel: ZFS storage pool version 28
Feb 6 18:13:01 nas root: /etc/rc: WARNING: failed precmd routine for vmware_guestd
Feb 6 18:13:02 nas ntpd[2257]: ntpd 4.2.4p5-a (1)
Feb 6 18:13:02 nas proftpd[2395]: 127.0.0.1 - ProFTPD 1.3.4a (maint) (built Wed Oct 31 2012 21:33:51 UTC) standalone mode STARTUP
Feb 6 18:13:10 nas avahi-daemon[2640]: WARNING: No NSS support for mDNS detected, consider installing nss-mdns!
Feb 6 18:13:11 nas ntpd[2258]: time reset +0.679903 s
Feb 6 18:28:20 nas ntpd[2258]: kernel time sync status change 2001