I have been experiencing a problem where the computer will boot upon power up the first time, but a reboot of the system causes a Fatal trap 12. Powering the system off for 5-30 mins, still won't allow it to boot when powered up. But, turn it off at night (12 mid), and then boot it up in the morning (7:30) and the first boot succeeds. Below is a hand transcribe of the dmesg and debugger output: ATAPI_RESET time = 330us ad0: 26105mb <WDC WD273BA/P78oA30A> [53040/16/63] at ata0-master BIOSPIO acd0: WARNING - MODE_SENSE_BIG interrupt was seen but taskqueue stalled acd0: WARNING - MODE_SENSE_BIG DONEDRQ non conformant device acd0: WARNING - MODE_SENSE_BIG read data overrun 65535>5 acd0: WARNING no status, reselecting device acd0: WARNING - MODE_SENSE_BIG DONEDRQ non conformant device Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0xc14927f0 fault code = supervisor write, page not present instruction pointer = 0x8:0xc04ba248 stack pointer = 0x10:0xc7a69c68 frame pointer = 0x10:0xc7a69c68 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 28 (swi5: clock sio) [thread 100000] stopped at ata_pio_read+0x68: repe insw %dx,%es:(%edi) db> trace ata_pio_read(c14827bc, ffff, c7a69cbc, ff, c08b3200) at ata_pio_read+0x68 ata_generic_interrupt(c12af200, 7, c7a69cf4, c060b392, c14827bc) at ata_generic_interrupt_0x578 ata_timeout(c14827bc) at ata_timeout+0x16f softclock(0) at softclock+0x17a ithread_loop(c12b9700, c7a69d48, c12b9700, c05ed7d0, 0) ata ithread_loop+0x124 fork_exit(c05ed7d0, c12b9700, c7a69d48) at fork_exit+0xa4 fork_trampoline() at fork_trampoline+0x8 --- trap 0x1, eip = 0, esp = 0xc7a69d7c, ebp = 0 --- The CDROM drive is a 3 CD changer: acd0: CDROM <CD-ROM CDR-C3 G/1.30> at ata0-slave BIOSPIO I haven't tried booting without the CDROM drive attached. My checked out sources are from Friday, about 4:00 CDT. The kernel was built using an unmodified GENERIC. Scot below is the demsg from a sucessful first boot. Copyright (c) 1992-2004 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 5.3-BETA1 #0: Sun Aug 22 11:43:46 CDT 2004 root_at_bsd5x.hetzel.org:/usr/obj/usr/src/sys/GENERIC WARNING: WITNESS option enabled, expect reduced performance. Timecounter "i8254" frequency 1193182 Hz quality 0 CPU: Pentium/P54C (132.63-MHz 586-class CPU) Origin = "GenuineIntel" Id = 0x525 Stepping = 5 Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8> real memory = 134217728 (128 MB) avail memory = 121700352 (116 MB) Intel Pentium detected, installing workaround for F00F bug npx0: [FAST] npx0: <math processor> on motherboard npx0: INT 16 interface pcib0: <Host to PCI bridge> pcibus 0 on motherboard pci0: <PCI bus> on pcib0 isab0: <PCI-ISA bridge> at device 7.0 on pci0 isa0: <ISA bus> on isab0 atapci0: <Intel PIIX WDMA2 controller> port 0x6000-0x600f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 7.1 on pci0 ata0: channel #0 on atapci0 ata1: channel #1 on atapci0 fxp0: <Intel 82557 Pro/100 Ethernet> port 0x6020-0x603f mem 0xcc000000-0xcc0fffff,0xca000000-0xca000fff irq 11 at device 13.0 on pci0 miibus0: <MII bus> on fxp0 inphy0: <i82555 10/100 media interface> on miibus0 inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto fxp0: Ethernet address: 00:a0:c9:85:b6:3c fxp0: [GIANT-LOCKED] ahc0: <Adaptec 2940 Ultra SCSI adapter> port 0x6400-0x64ff mem 0xcc200000-0xcc200fff irq 11 at device 14.0 on pci0 ahc0: [GIANT-LOCKED] aic7880: Ultra Wide Channel A, SCSI Id=7, 16/253 SCBs pci0: <display, VGA> at device 15.0 (no driver attached) cpu0 on motherboard orm0: <ISA Option ROMs> at iomem 0xc8000-0xcefff,0xc0000-0xc7fff on isa0 pmtimer0 on isa0 atkbdc0: <Keyboard controller (i8042)> at port 0x64,0x60 on isa0 atkbd0: <AT Keyboard> irq 1 on atkbdc0 kbd0 at atkbd0 atkbd0: [GIANT-LOCKED] psm0: <PS/2 Mouse> irq 12 on atkbdc0 psm0: [GIANT-LOCKED] psm0: model Generic PS/2 mouse, device ID 0 fdc0: <Enhanced floppy controller (i82077, NE72065 or clone)> at port 0x3f7,0x3f0-0x3f5 irq 6 drq 2 on isa0 fdc0: FIFO enabled, 8 bytes threshold fd0: <1440-KB 3.5" drive> on fdc0 drive 0 ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0 ppc0: Generic chipset (ECP/PS2/NIBBLE) in COMPATIBLE mode ppc0: FIFO with 16/16/8 bytes threshold ppbus0: <Parallel port bus> on ppc0 plip0: <PLIP network interface> on ppbus0 lpt0: <Printer> on ppbus0 lpt0: Interrupt-driven port ppi0: <Parallel I/O> on ppbus0 sc0: <System console> at flags 0x100 on isa0 sc0: VGA <16 virtual consoles, flags=0x300> sio0 at port 0x3f8-0x3ff irq 4 flags 0x20 on isa0 sio0: type 16550A sio1: configured irq 3 not in bitmap of probed irqs 0 sio1: port may not be enabled vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 sio4: <U.S. Robotics 56K FAX INT> at port 0x2f8-0x2ff irq 3 on isa0 sio4: type 16550A ahc1: No resources alloated. Timecounter "TSC" frequency 132632665 Hz quality 800 Timecounters tick every 10.000 msec ATAPI_RESET time = 310us ad0: 26105MB <WDC WD273BA/P78OA30A> [53040/16/63] at ata0-master BIOSPIO acd0: WARNING - MODE_SENSE_BIG interrupt was seen but taskqueue stalled acd0: WARNING - MODE_SENSE_BIG DONEDRQ non conformant device acd0: WARNING - MODE_SENSE_BIG read data overrun 65535>5 acd0: WARNING no status, reselecting device acd0: timeout sending command=a0 acd0: error issuing ATA PACKET command acd0: WARNING no status, reselecting device acd0: timeout sending command=a0 acd0: error issuing ATA PACKET command acd0: WARNING no status, reselecting device acd0: WARNING no status, reselecting device acd0: WARNING no status, reselecting device acd0: WARNING no status, reselecting device acd0: timeout sending command=a0 acd0: error issuing ATA PACKET command acd0: WARNING no status, reselecting device acd0: timeout sending command=a0 acd0: error issuing ATA PACKET command acd0: CDROM <CD-ROM CDR-C3 G/1.30> at ata0-slave BIOSPIO Waiting 15 seconds for SCSI devices to settle da0 at ahc0 bus 0 target 0 lun 0 da0: <QUANTUM FIREBALL ST3.2S 0F0C> Fixed Direct Access SCSI-2 device da0: 20.000MB/s transfers (20.000MHz, offset 15), Tagged Queueing Enabled da0: 3090MB (6328861 512 byte sectors: 255H 63S/T 393C) da1 at ahc0 bus 0 target 1 lun 0 da1: <QUANTUM FIREBALL ST3.2S 0F0C> Fixed Direct Access SCSI-2 device da1: 20.000MB/s transfers (20.000MHz, offset 15), Tagged Queueing Enabled da1: 3090MB (6328861 512 byte sectors: 255H 63S/T 393C) da2 at ahc0 bus 0 target 2 lun 0 da2: <QUANTUM FIREBALL ST3.2S 0F0C> Fixed Direct Access SCSI-2 device da2: 20.000MB/s transfers (20.000MHz, offset 15), Tagged Queueing Enabled da2: 3090MB (6328861 512 byte sectors: 255H 63S/T 393C) Mounting root from ufs:/dev/da0s1aReceived on Wed Aug 25 2004 - 12:12:39 UTC
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