I am still getting breakage from ata with sources from around midnight CDT (after the latest updates). These result in odd messages being printed to the screen and eventual panics before the machine mounts root. See the attached horrific.txt for the boot messages and some brief ddb action. Note the garbage right before the panic. The garbage was printed out before a 30 second pause prior to the panic. I backed out src/sys/dev/ata to '2005-05-03 07:55:00 UTC' and everything works perfectly. See the attached normal.txt for these boot messages. The panic seems to happen during probing of the CD drive. I use atapicam *without* atapicd. The kernel config is also attached. -- Jonathan Noack | noackjr_at_alumni.rice.edu | OpenPGP: 0x991D8195 Console: serial port BIOS drive A: is disk0 BIOS drive C: is disk1 BIOS drive D: is disk2 BIOS 639kB/1047488kB available memory FreeBSD/i386 bootstrap loader, Revision 1.1 (root_at_compgeek.noacks.org, Wed May 11 23:06:25 CDT 2005) Loading /boot/defaults/loader.conf /boot/kernel/kernel text=0x2d57d8 data=0x3104c+0x78614 syms=[0x4+0x396a0+0x4+0x47dc3] /boot/kernel/sound.ko text=0x169fc data=0x2868+0x10e0 syms=[0x4+0x2ae0+0x4+0x2fdc] /boot/kernel/snd_es137x.ko text=0x4798 data=0x364+0x8 syms=[0x4+0xa40+0x4+0xac9] Hit [Enter] to boot immediately, or any other key for command prompt. Booting [/boot/kernel/kernel]... /boot/kernel/acpi.ko text=0x496bc data=0x2124+0x10cc syms=[0x4+0x7730+0x4+0x9ea0] KDB: debugger backends: ddb KDB: current backend: ddb Copyright (c) 1992-2005 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 6.0-CURRENT #14: Thu May 12 00:09:28 CDT 2005 root_at_compgeek.noacks.org:/usr/obj/usr/src/sys/COMPGEEK WARNING: WITNESS option enabled, expect reduced performance. Timecounter "i8254" frequency 1193182 Hz quality 0 CPU: Intel(R) Pentium(R) 4 CPU 2.53GHz (2539.10-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0xf24 Stepping = 4 Features=0x3febfbff<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> real memory = 1072693248 (1023 MB) avail memory = 1040879616 (992 MB) ACPI APIC Table: <AMIINT AMIINI09> ACPI: overriding DSDT/SSDT with custom table ACPI-0377: *** Info: Table [DSDT] replaced by host OS ioapic0 <Version 2.0> irqs 0-23 on motherboard npx0: [FAST] npx0: <math processor> on motherboard npx0: INT 16 interface acpi0: <AMIINT AMIINI09> on motherboard acpi0: Overriding SCI Interrupt from IRQ 9 to IRQ 20 acpi0: Power Button (fixed) pci_link0: <ACPI PCI Link LNKA> irq 10 on acpi0 pci_link1: <ACPI PCI Link LNKB> irq 0 on acpi0 pci_link2: <ACPI PCI Link LNKC> irq 11 on acpi0 pci_link3: <ACPI PCI Link LNKD> irq 0 on acpi0 pci_link4: <ACPI PCI Link LNKE> irq 0 on acpi0 pci_link5: <ACPI PCI Link LNKF> irq 12 on acpi0 pci_link6: <ACPI PCI Link LNKG> irq 9 on acpi0 pci_link7: <ACPI PCI Link LNKH> irq 9 on acpi0 Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000 acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0 cpu0: <ACPI CPU> on acpi0 acpi_throttle0: <ACPI CPU Throttling> on cpu0 acpi_button0: <Power Button> on acpi0 pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0 pci0: <ACPI PCI bus> on pcib0 agp0: <Intel 82850 host to AGP bridge> mem 0xe0000000-0xe7ffffff at device 0.0 on pci0 pcib1: <PCI-PCI bridge> at device 1.0 on pci0 pci1: <PCI bus> on pcib1 pci1: <display, VGA> at device 0.0 (no driver attached) pci1: <display> at device 0.1 (no driver attached) uhci0: <Intel 82801DB (ICH4) USB controller USB-A> port 0xdc00-0xdc1f irq 16 at device 29.0 on pci0 uhci0: [GIANT-LOCKED] usb0: <Intel 82801DB (ICH4) USB controller USB-A> on uhci0 usb0: USB revision 1.0 uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub0: 2 ports with 2 removable, self powered ehci0: <EHCI (generic) USB 2.0 controller> mem 0xefffbc00-0xefffbfff irq 23 at device 29.7 on pci0 ehci0: [GIANT-LOCKED] usb1: EHCI version 1.0 usb1: companion controller, 2 ports each: usb0 usb1: <EHCI (generic) USB 2.0 controller> on ehci0 usb1: USB revision 2.0 uhub1: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1 uhub1: 2 ports with 2 removable, self powered pcib2: <ACPI PCI-PCI bridge> at device 30.0 on pci0 pci2: <ACPI PCI bus> on pcib2 em0: <Intel(R) PRO/1000 Network Connection, Version - 1.7.35> port 0xa800-0xa83f mem 0xefec0000-0xefedffff,0xefea0000-0xefebffff irq 16 at device 3.0 on pci2 em0: Ethernet address: 00:07:e9:15:37:df em0: Speed:N/A Duplex:N/A pcib3: <PCI-PCI bridge> at device 5.0 on pci2 pci3: <PCI bus> on pcib3 asr0: <Adaptec Caching SCSI RAID> mem 0xdc000000-0xddffffff irq 21 at device 5.1 on pci2 asr0: [GIANT-LOCKED] asr0: ADAPTEC 2100S FW Rev. 370F, 1 channel, 256 CCBs, Protocol I2O pcm0: <Creative CT5880-E> port 0xa400-0xa43f irq 22 at device 10.0 on pci2 pcm0: <SigmaTel STAC9708/11 AC97 Codec> atapci0: <Promise PDC20276 UDMA133 controller> port 0xbc00-0xbc07,0xb800-0xb803,0xb400-0xb407,0xb000-0xb003,0xac00-0xac0f mem 0xefefc000-0xefefffff irq 18 at device 12.0 on pci2 ata2: <ATA channel 0> on atapci0 ata3: <ATA channel 1> on atapci0 isab0: <PCI-ISA bridge> at device 31.0 on pci0 isa0: <ISA bus> on isab0 atapci1: <Intel ICH4 UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xff00-0xff0f at device 31.1 on pci0 ata0: <ATA channel 0> on atapci1 ata1: <ATA channel 1> on atapci1 pci0: <serial bus, SMBus> at device 31.3 (no driver attached) acpi_button1: <Sleep Button> on acpi0 fdc0: <floppy drive controller> port 0x3f2-0x3f3,0x3f4-0x3f5,0x3f7 irq 6 drq 2 on acpi0 fdc0: [FAST] fd0: <1440-KB 3.5" drive> on fdc0 drive 0 sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0 sio0: type 16550A, console sio1: <16550A-compatible COM port> port 0x2f8-0x2ff irq 3 on acpi0 sio1: type 16550A pmtimer0 on isa0 orm0: <ISA Option ROMs> at iomem 0xc0000-0xccfff,0xcd000-0xd57ff,0xd5800-0xd67ff,0xd6800-0xdc7ff on isa0 sc0: <System console> at flags 0x100 on isa0 sc0: VGA <16 virtual consoles, flags=0x300> vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0 atkbd0: <AT Keyboard> irq 1 on atkbdc0 kbd0 at atkbd0 atkbd0: [GIANT-LOCKED] ums0: Microsoft Microsoft Wheel Mouse Optical®, rev 1.10/1.21, addr 2, iclass 3/1 ums0: 3 buttons and Z dir. uhub2: vendor 0x04cc product 0x1122, class 9/0, rev 1.10/1.10, addr 3 uhub2: 3 ports with 3 removable, self powered uhid0: Logitech Logitech Extreme 3D Pro, rev 1.10/35.00, addr 4, iclass 3/0 ugen0: X10 Wireless Technology Inc USB Receiver, rev 1.10/1.00, addr 5 Timecounter "TSC" frequency 2539098768 Hz quality 800 Timecounters tick every 1.000 msec em0: link state changed to UP ad4: 76319MB <WDC WD800JB-00CRA1 17.07W17> at ata2-master UDMA100 ad6: 76319MB <WDC WD800JB-00CRA1 17.07W17> at ata3-master UDMA100 da0 at asr0 bus 0 target 0 lun 0 da0: <ADAPTEC RAID-0 370F> Fixed Direct Access SCSI-2 device da0: Tagged Queueing Enabled da0: 35003MB (71686144 512 byte sectors: 255H 63S/T 4462C) ATA PseudoRAID loaded ar0: 76293MB <Promise Fasttrak RAID1 array> status: READY ar0: disk0 READY (master) using ad4 at ata2-master ar0: disk1 READY (mirror) using ad6 at ata3-master cd0 at ata0 bus 0 target 0 lun 0 cd0: <SONY CD-RW CRX300E KYS1> Removable CD-ROM SCSI-0 device cd0: 3.300MB/s transfers cd0: €xpÀ$²uÀž jÀ€xpÀÀå¹½QÀž jÀX…kÀ panic: g_read_data(): invalid length 3737169374 KDB: stack backtrace: panic(c06afb0a,dec0adde,0,c24e8400,c24e7180) at panic+0x13a g_write_data(c2514080,0,0,dec0adde,0) at g_write_data g_mbr_taste(c0700ac0,c24e8400,0,15b,c24e8380) at g_mbr_taste+0x1e9 g_new_provider_event(c24e8400,0,c06b5462,15b,66666667) at g_new_provider_event+0x93 g_run_events(c070dd3c,0,4c,c06ae8bf,64) at g_run_events+0x21e g_event_procbody(0,e35bfd38,c06b24cf,30d,0) at g_event_procbody+0x95 fork_exit(c04b8a3e,0,e35bfd38) at fork_exit+0xa1 fork_trampoline() at fork_trampoline+0x8 --- trap 0x1, eip = 0, esp = 0xe35bfd6c, ebp = 0 --- db> show alllocks db> show pcpu cpuid = 0 curthread = 0xc227a600: pid 2 "g_event" curpcb = 0xe35bfd90 fpcurthread = none idlethread = 0xc2278600: pid 11 "idle" APIC ID = 0 currentldt = 0x50 spin locks held: db> show lockedvnods Locked vnodes db> reset Copyright (c) 1992-2005 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 6.0-CURRENT #15: Thu May 12 01:12:36 CDT 2005 root_at_compgeek.noacks.org:/usr/obj/usr/src/sys/COMPGEEK WARNING: WITNESS option enabled, expect reduced performance. Timecounter "i8254" frequency 1193182 Hz quality 0 CPU: Intel(R) Pentium(R) 4 CPU 2.53GHz (2539.10-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0xf24 Stepping = 4 Features=0x3febfbff<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> real memory = 1072693248 (1023 MB) avail memory = 1040879616 (992 MB) ACPI APIC Table: <AMIINT AMIINI09> ACPI: overriding DSDT/SSDT with custom table ACPI-0377: *** Info: Table [DSDT] replaced by host OS ioapic0 <Version 2.0> irqs 0-23 on motherboard npx0: [FAST] npx0: <math processor> on motherboard npx0: INT 16 interface acpi0: <AMIINT AMIINI09> on motherboard acpi0: Overriding SCI Interrupt from IRQ 9 to IRQ 20 acpi0: Power Button (fixed) pci_link0: <ACPI PCI Link LNKA> irq 10 on acpi0 pci_link1: <ACPI PCI Link LNKB> irq 0 on acpi0 pci_link2: <ACPI PCI Link LNKC> irq 11 on acpi0 pci_link3: <ACPI PCI Link LNKD> irq 0 on acpi0 pci_link4: <ACPI PCI Link LNKE> irq 0 on acpi0 pci_link5: <ACPI PCI Link LNKF> irq 12 on acpi0 pci_link6: <ACPI PCI Link LNKG> irq 9 on acpi0 pci_link7: <ACPI PCI Link LNKH> irq 9 on acpi0 Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000 acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0 cpu0: <ACPI CPU> on acpi0 acpi_throttle0: <ACPI CPU Throttling> on cpu0 acpi_button0: <Power Button> on acpi0 pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0 pci0: <ACPI PCI bus> on pcib0 agp0: <Intel 82850 host to AGP bridge> mem 0xe0000000-0xe7ffffff at device 0.0 on pci0 pcib1: <PCI-PCI bridge> at device 1.0 on pci0 pci1: <PCI bus> on pcib1 pci1: <display, VGA> at device 0.0 (no driver attached) pci1: <display> at device 0.1 (no driver attached) uhci0: <Intel 82801DB (ICH4) USB controller USB-A> port 0xdc00-0xdc1f irq 16 at device 29.0 on pci0 uhci0: [GIANT-LOCKED] usb0: <Intel 82801DB (ICH4) USB controller USB-A> on uhci0 usb0: USB revision 1.0 uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub0: 2 ports with 2 removable, self powered ehci0: <EHCI (generic) USB 2.0 controller> mem 0xefffbc00-0xefffbfff irq 23 at device 29.7 on pci0 ehci0: [GIANT-LOCKED] usb1: EHCI version 1.0 usb1: companion controller, 2 ports each: usb0 usb1: <EHCI (generic) USB 2.0 controller> on ehci0 usb1: USB revision 2.0 uhub1: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1 uhub1: 2 ports with 2 removable, self powered pcib2: <ACPI PCI-PCI bridge> at device 30.0 on pci0 pci2: <ACPI PCI bus> on pcib2 em0: <Intel(R) PRO/1000 Network Connection, Version - 1.7.35> port 0xa800-0xa83f mem 0xefec0000-0xefedffff,0xefea0000-0xefebffff irq 16 at device 3.0 on pci2 em0: Ethernet address: 00:07:e9:15:37:df em0: Speed:N/A Duplex:N/A pcib3: <PCI-PCI bridge> at device 5.0 on pci2 pci3: <PCI bus> on pcib3 asr0: <Adaptec Caching SCSI RAID> mem 0xdc000000-0xddffffff irq 21 at device 5.1 on pci2 asr0: [GIANT-LOCKED] asr0: ADAPTEC 2100S FW Rev. 370F, 1 channel, 256 CCBs, Protocol I2O pcm0: <Creative CT5880-E> port 0xa400-0xa43f irq 22 at device 10.0 on pci2 pcm0: <SigmaTel STAC9708/11 AC97 Codec> atapci0: <Promise PDC20276 UDMA133 controller> port 0xbc00-0xbc07,0xb800-0xb803,0xb400-0xb407,0xb000-0xb003,0xac00-0xac0f mem 0xefefc000-0xefefffff irq 18 at device 12.0 on pci2 ata2: <ATA channel 0> on atapci0 ata3: <ATA channel 1> on atapci0 isab0: <PCI-ISA bridge> at device 31.0 on pci0 isa0: <ISA bus> on isab0 atapci1: <Intel ICH4 UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xff00-0xff0f at device 31.1 on pci0 ata0: <ATA channel 0> on atapci1 ata1: <ATA channel 1> on atapci1 pci0: <serial bus, SMBus> at device 31.3 (no driver attached) acpi_button1: <Sleep Button> on acpi0 fdc0: <floppy drive controller> port 0x3f2-0x3f3,0x3f4-0x3f5,0x3f7 irq 6 drq 2 on acpi0 fdc0: [FAST] fd0: <1440-KB 3.5" drive> on fdc0 drive 0 sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0 sio0: type 16550A sio1: <16550A-compatible COM port> port 0x2f8-0x2ff irq 3 on acpi0 sio1: type 16550A atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0 atkbd0: <AT Keyboard> irq 1 on atkbdc0 kbd0 at atkbd0 atkbd0: [GIANT-LOCKED] pmtimer0 on isa0 orm0: <ISA Option ROMs> at iomem 0xc0000-0xccfff,0xcd000-0xd57ff,0xd5800-0xd67ff,0xd6800-0xdc7ff on isa0 sc0: <System console> at flags 0x100 on isa0 sc0: VGA <16 virtual consoles, flags=0x300> vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 ums0: Microsoft Microsoft Wheel Mouse Optical\M-., rev 1.10/1.21, addr 2, iclass 3/1 ums0: 3 buttons and Z dir. uhub2: vendor 0x04cc product 0x1122, class 9/0, rev 1.10/1.10, addr 3 uhub2: 3 ports with 3 removable, self powered uhid0: Logitech Logitech Extreme 3D Pro, rev 1.10/35.00, addr 4, iclass 3/0 ugen0: X10 Wireless Technology Inc USB Receiver, rev 1.10/1.00, addr 5 Timecounter "TSC" frequency 2539104292 Hz quality 800 Timecounters tick every 1.000 msec ad4: 76319MB <WDC WD800JB-00CRA1 17.07W17> at ata2-master UDMA100 ad6: 76319MB <WDC WD800JB-00CRA1 17.07W17> at ata3-master UDMA100 da0 at asr0 bus 0 target 0 lun 0 da0: <ADAPTEC RAID-0 370F> Fixed Direct Access SCSI-2 device da0: Tagged Queueing Enabled da0: 35003MB (71686144 512 byte sectors: 255H 63S/T 4462C) ATA PseudoRAID loaded ar0: 76293MB <Promise Fasttrak RAID1 array> status: READY ar0: disk0 READY (master) using ad4 at ata2-master ar0: disk1 READY (mirror) using ad6 at ata3-master cd0 at ata0 bus 0 target 0 lun 0 cd0: <SONY CD-RW CRX300E KYS1> Removable CD-ROM SCSI-0 device cd0: 3.300MB/s transfers cd0: Attempt to query device size failed: NOT READY, Medium not present Trying to mount root from ufs:/dev/da0s2a drm0: <ATI Radeon NH R350 9800 Pro> port 0x7800-0x78ff mem 0xd0000000-0xd7ffffff,0xefcf0000-0xefcfffff irq 16 at device 0.0 on pci1 info: [drm] AGP at 0xe0000000 128MB info: [drm] Initialized radeon 1.15.0 20050208 on minor 0 info: [drm] Loading R300 Microcode # # COMPGEEK -- CompGeek kernel configuration file # version 6.0 # 2005/05/12 # machine i386 cpu I686_CPU ident COMPGEEK # To statically compile in device wiring instead of /boot/device.hints #hints "GENERIC.hints" # Default places to look for devices. makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols # Only build ACPI, DRM, Linux API, and sound modules makeoptions MODULES_OVERRIDE="acpi/acpi linprocfs linux sound/sound sound/driver/es137x" #options SCHED_ULE # ULE scheduler options SCHED_4BSD # 4BSD scheduler options PREEMPTION # Enable kernel thread preemption options INET # InterNETworking options INET6 # IPv6 communications protocols options FFS # Berkeley Fast Filesystem options SOFTUPDATES # Enable FFS soft updates support options UFS_ACL # Support for access control lists options UFS_DIRHASH # Improve performance on big directories options MD_ROOT # MD is a potential root device options NFSCLIENT # Network Filesystem Client options NFSSERVER # Network Filesystem Server options NFS_ROOT # NFS usable as /, requires NFSCLIENT options MSDOSFS # MSDOS Filesystem options CD9660 # ISO 9660 Filesystem options PROCFS # Process filesystem (requires PSEUDOFS) options PSEUDOFS # Pseudo-filesystem framework options GEOM_GPT # GUID Partition Tables. options COMPAT_43 # Compatible with BSD 4.3 [KEEP THIS!] options COMPAT_FREEBSD4 # Compatible with FreeBSD4 options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI options KTRACE # ktrace(1) support options SYSVSHM # SYSV-style shared memory options SYSVMSG # SYSV-style message queues options SYSVSEM # SYSV-style semaphores options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions options KBD_INSTALL_CDEV # install a CDEV entry in /dev options AHC_REG_PRETTY_PRINT # Print register bitfields in debug # output. Adds ~128k to driver. options AHD_REG_PRETTY_PRINT # Print register bitfields in debug # output. Adds ~215k to driver. options ADAPTIVE_GIANT # Giant mutex is adaptive. # Debugging for use in -current options KDB # Enable kernel debugger support. options KDB_TRACE # Print a stack trace of the current thread on the console for a panic. options DDB # Support DDB. #options BREAK_TO_DEBUGGER # A BREAK on a serial console goes to ddb, if available. options INVARIANTS # Enable calls of extra sanity checking options INVARIANT_SUPPORT # Extra sanity checks of internal structures, required by INVARIANTS options WITNESS # Enable checks to detect deadlocks and cycles options WITNESS_SKIPSPIN # Don't run witness on spinlocks for speed # Statically Link in accept filters options ACCEPT_FILTER_DATA options ACCEPT_FILTER_HTTP # Zero copy sockets support. This enables "zero copy" for sending and # receiving data via a socket. The send side works for any type of NIC, # the receive side only works for NICs that support MTUs greater than the # page size of your architecture and that support header splitting. See # zero_copy(9) for more details. options ZERO_COPY_SOCKETS # Increase HZ options HZ=1000 # set granularity of operation to 1ms # To make an SMP kernel, the next two lines are needed #options SMP # Symmetric MultiProcessor Kernel device apic # I/O APIC # Bus support. Do not remove isa, even if you have no isa slots device isa device pci # Floppy drives device fdc # ATA and ATAPI devices device ata device atadisk # ATA disk drives device ataraid # ATA RAID drives #device atapicd # ATAPI CDROM drives device atapicam # emulate ATAPI devices as SCSI ditto via CAM # needs CAM to be present (scbus & pass) options ATA_STATIC_ID # Static device numbering # SCSI peripherals device scbus # SCSI bus (required for SCSI) device da # Direct Access (disks) device cd # CD device pass # Passthrough device (direct SCSI access) # RAID controllers interfaced to the SCSI subsystem device asr # DPT SmartRAID V, VI and Adaptec SCSI RAID # asr old ioctls support, needed by raidutils options ASR_COMPAT # atkbdc0 controls both the keyboard and the PS/2 mouse device atkbdc # AT keyboard controller device atkbd # AT keyboard device psm # PS/2 mouse device vga # VGA video card driver device splash # Splash screen and screen saver support # syscons is the default console driver, resembling an SCO console device sc device agp # support several AGP chipsets # Floating point support - do not disable. device npx # Power management support (see NOTES for more options) #device apm # Add suspend/resume support for the i8254. device pmtimer # Serial (COM) ports device sio # 8250, 16[45]50 based serial ports # PCI Ethernet NICs. device em # Intel PRO/1000 adapter Gigabit Ethernet Card # Pseudo devices. device loop # Network loopback device mem # Memory and kernel memory devices device io # I/O device device random # Entropy device device ether # Ethernet support device sl # Kernel SLIP device ppp # Kernel PPP device tun # Packet tunnel. device pty # Pseudo-ttys (telnet etc) device md # Memory "disks" device gif # IPv6 and IPv4 tunneling # The `bpf' device enables the Berkeley Packet Filter. # Be aware of the administrative consequences of enabling this! # Note that 'bpf' is required for DHCP. device bpf # Berkeley packet filter # USB support device uhci # UHCI PCI->USB interface device ehci # EHCI PCI->USB interface (USB 2.0) device usb # USB Bus (required) device ugen # Generic device uhid # "Human Interface Devices" device ukbd # Keyboard device ulpt # Printer device umass # Disks/Mass storage - Requires scbus and da device ums # Mouse device uscanner # Scanners
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