Hi @misc: My OpenBSD amd64 box running current (as march 4, 2010), is dying unexpectedly when reading /dev/rcd0c:
dmesg: OpenBSD 4.7-beta (kobj) #1: Thu Mar 4 10:47:30 CST 2010 r...@maetel.00z:/usr/kobj real mem = 2011889664 (1918MB) avail mem = 1948676096 (1858MB) mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.5 @ 0x9f400 (60 entries) bios0: vendor American Megatrends Inc. version "080014" date 04/21/2008 bios0: FOXCONN A6VMX acpi0 at bios0: rev 0 acpi0: tables DSDT FACP APIC MCFG OEMB HPET SSDT acpi0: wakeup devices PCE2(S4) PCE3(S4) PCE4(S4) PCE5(S4) PCE6(S4) PCE7(S4) SBAZ(S4) PS2K(S4) PS2M(S3) P0PC(S4) WOL_(S4) AC97(S4) MC97(S4) USB1(S3) USB2(S3) USB3(S3) USB4(S3) USB5(S3) EUSB(S3) PWRB(S4) acpitimer0 at acpi0: 3579545 Hz, 32 bits acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: AMD Sempron(tm) Processor LE-1100, 1900.42 MHz cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3,CX16,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW cpu0: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 256KB 64b/line 16-way L2 cache cpu0: ITLB 32 4KB entries fully associative, 8 4MB entries fully associative cpu0: DTLB 32 4KB entries fully associative, 8 4MB entries fully associative cpu0: apic clock running at 200MHz ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 21, 24 pins acpihpet0 at acpi0: 14318180 Hz acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus 1 (P0P1) acpiprt2 at acpi0: bus -1 (PCE2) acpiprt3 at acpi0: bus -1 (PCE3) acpiprt4 at acpi0: bus -1 (PCE4) acpiprt5 at acpi0: bus 2 (PCE5) acpiprt6 at acpi0: bus 3 (P0PC) acpicpu0 at acpi0: PSS acpibtn0 at acpi0: PWRB cpu0: PowerNow! K8 1900 MHz: speeds: 1900 1800 1000 MHz pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "ATI RS690 Host" rev 0x00 ppb0 at pci0 dev 1 function 0 "ATI RS690 PCIE" rev 0x00 pci1 at ppb0 bus 1 vga1 at pci1 dev 5 function 0 "ATI Radeon X1250" rev 0x00 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) ppb1 at pci0 dev 5 function 0 "ATI RS690 PCIE" rev 0x00 pci2 at ppb1 bus 2 re0 at pci2 dev 0 function 0 "Realtek 8101E" rev 0x01: RTL8101E (0x3400), apic 1 int 17 (irq 15), address 00:1f:e2:09:c2:ee rlphy0 at re0 phy 7: RTL8201L 10/100 PHY, rev. 1 ahci0 at pci0 dev 18 function 0 "ATI SB600 SATA" rev 0x00: apic 1 int 22 (irq 11), AHCI 1.1 scsibus0 at ahci0: 32 targets sd0 at scsibus0 targ 0 lun 0: <ATA, WDC WD5000AAJS-2, 01.0> SCSI3 0/direct fixed sd0: 476940MB, 512 bytes/sec, 976773168 sec total sd1 at scsibus0 targ 1 lun 0: <ATA, WDC WD10EARS-00Y, 80.0> SCSI3 0/direct fixed sd1: 953869MB, 512 bytes/sec, 1953525168 sec total ohci0 at pci0 dev 19 function 0 "ATI SB600 USB" rev 0x00: apic 1 int 16 (irq 5), version 1.0, legacy support ohci1 at pci0 dev 19 function 1 "ATI SB600 USB" rev 0x00: apic 1 int 17 (irq 15), version 1.0, legacy support ohci2 at pci0 dev 19 function 2 "ATI SB600 USB" rev 0x00: apic 1 int 18 (irq 10), version 1.0, legacy support ohci3 at pci0 dev 19 function 3 "ATI SB600 USB" rev 0x00: apic 1 int 17 (irq 15), version 1.0, legacy support ohci4 at pci0 dev 19 function 4 "ATI SB600 USB" rev 0x00: apic 1 int 18 (irq 10), version 1.0, legacy support ehci0 at pci0 dev 19 function 5 "ATI SB600 USB2" rev 0x00: apic 1 int 19 (irq 10) usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "ATI EHCI root hub" rev 2.00/1.00 addr 1 piixpm0 at pci0 dev 20 function 0 "ATI SBx00 SMBus" rev 0x13: SMI iic0 at piixpm0 iic0: addr 0x2f 01=33 02=30 03=33 04=30 05=33 06=33 07=33 08=33 09=38 0a=38 0b=ab 0c=98 11=70 12=40 5a=05 5b=10 5c=10 5d=19 5e=34 f0=20 f1=20 f2=02 fa=00 ff=5e words 00=ffff 01=33ff 02=30ff 03=33ff 04=30ff 05=33ff 06=33ff 07=33ff spdmem0 at iic0 addr 0x50: 1GB DDR2 SDRAM non-parity PC2-6400CL5 spdmem1 at iic0 addr 0x51: 1GB DDR2 SDRAM non-parity PC2-6400CL5 pciide0 at pci0 dev 20 function 1 "ATI SB600 IDE" rev 0x00: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility atapiscsi0 at pciide0 channel 0 drive 1 scsibus1 at atapiscsi0: 2 targets cd0 at scsibus1 targ 0 lun 0: <PIONEER, DVD-RW DVR-116D, 1.08> ATAPI 5/cdrom removable cd0(pciide0:0:1): using PIO mode 4, DMA mode 2, Ultra-DMA mode 4 azalia0 at pci0 dev 20 function 2 "ATI SBx00 HD Audio" rev 0x00: apic 1 int 16 (irq 5) azalia0: codecs: Realtek ALC662 audio0 at azalia0 pcib0 at pci0 dev 20 function 3 "ATI SB600 ISA" rev 0x00 ppb2 at pci0 dev 20 function 4 "ATI SB600 PCI" rev 0x00 pci3 at ppb2 bus 3 ral0 at pci3 dev 0 function 0 "Ralink RT2561" rev 0x00: apic 1 int 20 (irq 10), address 00:80:5a:51:33:d4 ral0: MAC/BBP RT2561C, RF RT2527 re1 at pci3 dev 1 function 0 "Realtek 8169" rev 0x10: RTL8169/8110SB (0x1000), apic 1 int 21 (irq 9), address 00:08:54:a6:be:f6 rgephy0 at re1 phy 7: RTL8169S/8110S PHY, rev. 3 pchb1 at pci0 dev 24 function 0 "AMD AMD64 0Fh HyperTransport" rev 0x00 pchb2 at pci0 dev 24 function 1 "AMD AMD64 0Fh Address Map" rev 0x00 pchb3 at pci0 dev 24 function 2 "AMD AMD64 0Fh DRAM Cfg" rev 0x00 kate0 at pci0 dev 24 function 3 "AMD AMD64 0Fh Misc Cfg" rev 0x00: core rev DH-G1 usb1 at ohci0: USB revision 1.0 uhub1 at usb1 "ATI OHCI root hub" rev 1.00/1.00 addr 1 usb2 at ohci1: USB revision 1.0 uhub2 at usb2 "ATI OHCI root hub" rev 1.00/1.00 addr 1 usb3 at ohci2: USB revision 1.0 uhub3 at usb3 "ATI OHCI root hub" rev 1.00/1.00 addr 1 usb4 at ohci3: USB revision 1.0 uhub4 at usb4 "ATI OHCI root hub" rev 1.00/1.00 addr 1 usb5 at ohci4: USB revision 1.0 uhub5 at usb5 "ATI OHCI root hub" rev 1.00/1.00 addr 1 isa0 at pcib0 isadma0 at isa0 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo com0: probed fifo depth: 15 bytes com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo com1: probed fifo depth: 15 bytes pckbc0 at isa0 port 0x60/5 pcppi0 at isa0 port 0x61 midi0 at pcppi0: <PC speaker> spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 mtrr: Pentium Pro MTRR support uhidev0 at uhub2 port 1 configuration 1 interface 0 "CHESEN USB Keyboard" rev 1.10/1.10 addr 2 uhidev0: iclass 3/1 ukbd0 at uhidev0: 8 modifier keys, 6 key codes, country code 33 wskbd0 at ukbd0: console keyboard, using wsdisplay0 uhidev1 at uhub2 port 1 configuration 1 interface 1 "CHESEN USB Keyboard" rev 1.10/1.10 addr 2 uhidev1: iclass 3/0, 3 report ids uhid0 at uhidev1 reportid 2: input=1, output=0, feature=0 uhid1 at uhidev1 reportid 3: input=3, output=0, feature=0 uhidev2 at uhub1 port 2 configuration 1 interface 0 "Microsoft Basic Optical Mouse" rev 1.10/0.00 addr 2 uhidev2: iclass 3/1 ums0 at uhidev2: 3 buttons, Z dir wsmouse0 at ums0 mux 0 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root root on sd0a swap on sd0b dump on sd0b WARNING: / was not properly unmounted kernel: privileged instruction fault trap, code=0 Stopped at ---- I don't know how to get a more useful debugging output... (this wasn't happening a month or so ago..., not even with 4.6-release) -- DISCLAIMER: http://goldmark.org/jeff/stupid-disclaimers/ This message will self-destruct in 3 seconds.