Can anyone offer clues as to what may be happening? This is from an old-ish VIA EPIA 5000. The box is not accessible by console or network after this (no panic, though). It happens fairly often but not at predictable intervals.
No other corrupted output is seen, just the 'uhai18 hmqt amltpmllep ppmaeqq' ('host controller process'). The word 'error' is intact, rather than the eppmp that would be seen if the same corruption applied as the other words in the same printf. [-- MARK -- Tue Apr 17 03:00:00 2007] uhai18 hmqt amltpmllep ppmaeqq error uhci1: host controller halted wd1(pciide0:1:0): timeout type: ata c_bcount: 16384 c_skip: 0 wd1e: device timeout writing fsbn 13437504 of 13437504-0 (wd1 bn 30623904; cn 30380 tn 13 sn 45), retrying wd1(pciide0:1:0): timeout type: ata c_bcount: 16384 c_skip: 0 wd0(pciide0:0:0): timeout type: ata c_bcount: 16384 c_skip: 0 wd0a: device timeout writing fsbn 661472 of 661472-0 (wd0 bn 661535; cn 656 tn 4 sn 35), retrying wd0(pciide0:0:0): timeout type: ata c_bcount: 16384 c_skip: 0 <[EMAIL PROTECTED]:4>$ grep -5 'host controller process' dev/usb/uhci.c ack |= UHCI_STS_HSE; printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); } if (status & UHCI_STS_HCPE) { ack |= UHCI_STS_HCPE; printf("%s: host controller process error\n", USBDEVNAME(sc->sc_bus.bdev)); } if (status & UHCI_STS_HCH) { /* no acknowledge needed */ if (!sc->sc_dying) { OpenBSD 4.1 (GENERIC) #1435: Sat Mar 10 19:07:45 MST 2007 [EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC cpu0: VIA Samuel 2 ("CentaurHauls" 686-class) 534 MHz cpu0: FPU,DE,TSC,MSR,MTRR,PGE,MMX real mem = 534343680 (521820K) avail mem = 479854592 (468608K) using 4278 buffers containing 26841088 bytes (26212K) of memory mainbus0 (root) bios0 at mainbus0: AT/286+ BIOS, date 03/18/02, BIOS32 rev. 0 @ 0xfb370, SMBIOS rev. 2.2 @ 0xf0800 (43 entries) bios0: VIA Technologies, Inc. VT8601 apm0 at bios0: Power Management spec V1.2 apm0: AC on, battery charge unknown apm0: flags 70102 dobusy 1 doidle 1 pcibios0 at bios0: rev 2.1 @ 0xf0000/0xdce4 pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xfdc70/112 (5 entries) pcibios0: PCI Exclusive IRQs: 5 10 11 12 pcibios0: PCI Interrupt Router at 000:17:0 ("VIA VT8231 ISA" rev 0x00) pcibios0: PCI bus #2 is the last bus bios0: ROM list: 0xc0000/0xc000 0xcc000/0x4000! 0xd0000/0x9800 cpu0 at mainbus0 pci0 at mainbus0 bus 0: configuration mode 1 (no bios) pchb0 at pci0 dev 0 function 0 "VIA VT8601 PCI" rev 0x05 ppb0 at pci0 dev 1 function 0 "VIA VT82C601 AGP" rev 0x00 pci1 at ppb0 bus 1 vga1 at pci1 dev 0 function 0 "Trident CyberBlade i1" rev 0x6a wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) pcib0 at pci0 dev 17 function 0 "VIA VT8231 ISA" rev 0x10 pciide0 at pci0 dev 17 function 1 "VIA VT82C571 IDE" rev 0x06: ATA100, channel 0 configured to compatibility, channel 1 configured to compatibility wd0 at pciide0 channel 0 drive 0: <SAMSUNG CF/ATA> wd0: 1-sector PIO, LBA, 497MB, 1018080 sectors wd0(pciide0:0:0): using PIO mode 4 wd1 at pciide0 channel 1 drive 0: <ST340810A> wd1: 16-sector PIO, LBA, 38166MB, 78165360 sectors wd1(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 5 uhci0 at pci0 dev 17 function 2 "VIA VT83C572 USB" rev 0x1e: irq 5 usb0 at uhci0: USB revision 1.0 uhub0 at usb0 uhub0: VIA UHCI root hub, rev 1.00/1.00, addr 1 uhub0: 2 ports with 2 removable, self powered uhci1 at pci0 dev 17 function 3 "VIA VT83C572 USB" rev 0x1e: irq 5 usb1 at uhci1: USB revision 1.0 uhub1 at usb1 uhub1: VIA UHCI root hub, rev 1.00/1.00, addr 1 uhub1: 2 ports with 2 removable, self powered viaenv0 at pci0 dev 17 function 4 "VIA VT8231 PMG" rev 0x10 auvia0 at pci0 dev 17 function 5 "VIA VT82C686 AC97" rev 0x40: irq 11 ac97: codec id 0x56494161 (VIA Technologies VT1612A) ac97: codec features headphone, 18 bit DAC, 18 bit ADC, KS Waves 3D audio0 at auvia0 vr0 at pci0 dev 18 function 0 "VIA RhineII-2" rev 0x51: irq 12, address 00:40:63:c0:50:14 ukphy0 at vr0 phy 1: Generic IEEE 802.3u media interface, rev. 5: OUI 0x004063, model 0x0032 ppb1 at pci0 dev 20 function 0 "DEC 21152 PCI-PCI" rev 0x03 pci2 at ppb1 bus 2 fxp0 at pci2 dev 4 function 0 "Intel 8255x" rev 0x05, i82558: irq 10, address 00:90:27:fc:ab:12 inphy0 at fxp0 phy 1: i82555 10/100 PHY, rev. 0 fxp1 at pci2 dev 5 function 0 "Intel 8255x" rev 0x05, i82558: irq 11, address 00:90:27:fc:ab:13 inphy1 at fxp1 phy 1: i82555 10/100 PHY, rev. 0 isa0 at pcib0 isadma0 at isa0 pckbc0 at isa0 port 0x60/5 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard, using wsdisplay0 pcppi0 at isa0 port 0x61 midi0 at pcppi0: <PC speaker> spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16 pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo pccom0: console biomask e36d netmask ff6d ttymask ffef pctr: user-level cycle counter enabled dkcsum: wd0 matches BIOS drive 0x80 dkcsum: wd1 matches BIOS drive 0x81 root on wd0a rootdev=0x0 rrootdev=0x300 rawdev=0x302 WARNING: / was not properly unmounted