Hi,
I reinstalled OpenBSD 5.8 and updated to stable again, so I now have a clean install. The only thing I configured manually is: I added 'apmd_flags="-A"' in /etc/rc.conf.local to do CPU frequency scaling while I'm not sure my system supports it. It seems a randomly occuring problem. My mouse: "vendor 0x0000 USB OPTICAL MOUSE". It's wholesale cheap stuff. Other OSes don't show the problem, and that makes me believe the mouse is doing alright. I happen to have two of them, so to be certain I'll swap it and test this new configuration in a few days. I'll keep you informed. I wouldn't be surprised if this cheap piece of hardware would have some minor incompatibility that only a correct OS's (OpenBSD) driver would crash upon. :-) (That doesn't explain Maurice's identical problem using a Logitech mouse. Also, to my knowledge a crashed driver would raise an error message which I didn't see.) Here are my dmesg outputs that might help. Of course if you want to see more files, I'd be happy to provide them. Also if you come up with some ideas I could test, let me know. (I won't be available for a few days however.) My dmesg detecting the mouse: OpenBSD 5.8-stable (GENERIC.MP) #0: Tue Nov 10 19:15:31 CET 2015 r...@test.example.com:/usr/src/sys/arch/i386/compile/GENERIC.MP cpu0: Intel(R) Pentium(R) 4 CPU 3.00GHz ("GenuineIntel" 686-class) 3 GHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,CNXT-ID,xTPR,PERF real mem = 2675343360 (2551MB) avail mem = 2609262592 (2488MB) mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: date 06/16/04, BIOS32 rev. 0 @ 0xeb560, SMBIOS rev. 2.3 @ 0xeeae0 (63 entries) bios0: vendor Hewlett-Packard version "786C1 v01.05" date 06/16/2004 bios0: Hewlett-Packard HP Compaq dc7100 SFF(DX878AV) acpi0 at bios0: rev 0 acpi0: sleep states S0 S1 S3 S4 S5 acpi0: tables DSDT FACP SSDT APIC ASF! MCFG acpi0: wakeup devices PCI0(S4) PEG1(S4) PCX1(S4) PCX2(S4) PCX4(S4) HUB_(S4) COM1(S4) COM2(S4) USB1(S3) USB2(S3) USB3(S3) USB4(S3) EUSB(S3) PBTN(S4) acpitimer0 at acpi0: 3579545 Hz, 24 bits acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges cpu0: apic clock running at 199MHz cpu0: mwait min=64, max=64 cpu1 at mainbus0: apid 1 (application processor) cpu1: Intel(R) Pentium(R) 4 CPU 3.00GHz ("GenuineIntel" 686-class) 3 GHz cpu1: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,CNXT-ID,xTPR,PERF ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 20, 24 pins ioapic0: misconfigured as apic 0, remapped to apid 1 acpimcfg0 at acpi0 addr 0xd0000000, bus 0-255 acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus 32 (PCX1) acpiprt2 at acpi0: bus 64 (PCX2) acpiprt3 at acpi0: bus -1 (PCX4) acpiprt4 at acpi0: bus 5 (HUB_) acpicpu0 at acpi0: C1(@1 halt!) acpicpu1 at acpi0: C1(@1 halt!) acpibtn0 at acpi0: PBTN bios0: ROM list: 0xc0000/0xa800! 0xca800/0x1000 0xcb800/0x2000 0xe9c00/0x6400! pci0 at mainbus0 bus 0: configuration mode 1 (bios) pchb0 at pci0 dev 0 function 0 "Intel 82915G Host" rev 0x04 vga1 at pci0 dev 2 function 0 "Intel 82915G Video" rev 0x04 intagp0 at vga1 agp0 at intagp0: aperture at 0xe0000000, size 0x10000000 inteldrm0 at vga1 drm0 at inteldrm0 inteldrm0: 1024x768 wsdisplay0 at vga1 mux 1: console (std, vt100 emulation) wsdisplay0: screen 1-5 added (std, vt100 emulation) "Intel 82915G Video" rev 0x04 at pci0 dev 2 function 1 not configured ppb0 at pci0 dev 28 function 0 "Intel 82801FB PCIE" rev 0x03 pci1 at ppb0 bus 32 ppb1 at pci0 dev 28 function 1 "Intel 82801FB PCIE" rev 0x03: apic 1 int 17 pci2 at ppb1 bus 64 bge0 at pci2 dev 0 function 0 "Broadcom BCM5751" rev 0x01, BCM5750 A1 (0x4001): apic 1 int 17, address 00:12:79:67:d1:01 brgphy0 at bge0 phy 1: BCM5750 10/100/1000baseT PHY, rev. 0 uhci0 at pci0 dev 29 function 0 "Intel 82801FB USB" rev 0x03: apic 1 int 20 uhci1 at pci0 dev 29 function 1 "Intel 82801FB USB" rev 0x03: apic 1 int 18 uhci2 at pci0 dev 29 function 2 "Intel 82801FB USB" rev 0x03: apic 1 int 21 uhci3 at pci0 dev 29 function 3 "Intel 82801FB USB" rev 0x03: apic 1 int 22 ehci0 at pci0 dev 29 function 7 "Intel 82801FB USB" rev 0x03: apic 1 int 20 usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 ppb2 at pci0 dev 30 function 0 "Intel 82801BA Hub-to-PCI" rev 0xd3 pci3 at ppb2 bus 5 auich0 at pci0 dev 30 function 2 "Intel 82801FB AC97" rev 0x03: apic 1 int 21, ICH6 AC97 ac97: codec id 0x41445374 (Analog Devices AD1981B) ac97: codec features headphone, 20 bit DAC, No 3D Stereo audio0 at auich0 ichpcib0 at pci0 dev 31 function 0 "Intel 82801FB LPC" rev 0x03: PM disabled pciide0 at pci0 dev 31 function 1 "Intel 82801FB IDE" rev 0x03: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility atapiscsi0 at pciide0 channel 0 drive 0 scsibus1 at atapiscsi0: 2 targets cd0 at scsibus1 targ 0 lun 0: <PHILIPS, SPD2414T, P1.0> ATAPI 5/cdrom removable cd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 4 pciide0: channel 1 disabled (no drives) pciide1 at pci0 dev 31 function 2 "Intel 82801FB SATA" rev 0x03: DMA, channel 0 configured to native-PCI, channel 1 configured to native-PCI pciide1: using apic 1 int 19 for native-PCI interrupt wd0 at pciide1 channel 0 drive 0: <Maxtor 6E040T0> wd0: 16-sector PIO, LBA48, 38166MB, 78165360 sectors wd0(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 5 usb1 at uhci0: USB revision 1.0 uhub1 at usb1 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb2 at uhci1: USB revision 1.0 uhub2 at usb2 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb3 at uhci2: USB revision 1.0 uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb4 at uhci3: USB revision 1.0 uhub4 at usb4 "Intel UHCI root hub" rev 1.00/1.00 addr 1 isa0 at ichpcib0 isadma0 at isa0 fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo pckbc0 at isa0 port 0x60/5 irq 1 irq 12 pckbd0 at pckbc0 (kbd slot) wskbd0 at pckbd0: console keyboard, using wsdisplay0 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16 uhidev0 at uhub1 port 2 configuration 1 interface 0 "vendor 0x0000 USB OPTICAL MOUSE" rev 1.10/1.00 addr 2 uhidev0: iclass 3/1, 1 report id ums0 at uhidev0 reportid 1: 3 buttons, Z dir wsmouse0 at ums0 mux 0 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root scsibus3 at softraid0: 256 targets root on wd0a (ae95fd8cdc627913.a) swap on wd0b dump on wd0b My dmesg -s detecting the mouse: Automatic boot in progress: starting file system checks. /dev/wd0a (ae95fd8cdc627913.a): file system is clean; not checking /dev/wd0k (ae95fd8cdc627913.k): file system is clean; not checking /dev/wd0d (ae95fd8cdc627913.d): file system is clean; not checking /dev/wd0f (ae95fd8cdc627913.f): file system is clean; not checking /dev/wd0g (ae95fd8cdc627913.g): file system is clean; not checking /dev/wd0h (ae95fd8cdc627913.h): file system is clean; not checking /dev/wd0j (ae95fd8cdc627913.j): file system is clean; not checking /dev/wd0i (ae95fd8cdc627913.i): file system is clean; not checking /dev/wd0e (ae95fd8cdc627913.e): file system is clean; not checking setting tty flags pf enabled starting network starting early daemons: syslogd pflogd ntpd. starting RPC daemons:. savecore: no core dump checking quotas: done. clearing /tmp kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd smtpd sndiod. starting local daemons: cron xdm. Tue Nov 10 22:29:12 CET 2015 My dmesg not detecting the mouse: OpenBSD 5.8-stable (GENERIC.MP) #0: Tue Nov 10 19:15:31 CET 2015 r...@test.example.com:/usr/src/sys/arch/i386/compile/GENERIC.MP cpu0: Intel(R) Pentium(R) 4 CPU 3.00GHz ("GenuineIntel" 686-class) 3 GHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,CNXT-ID,xTPR,PERF real mem = 2675343360 (2551MB) avail mem = 2609262592 (2488MB) mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: date 06/16/04, BIOS32 rev. 0 @ 0xeb560, SMBIOS rev. 2.3 @ 0xeeae0 (63 entries) bios0: vendor Hewlett-Packard version "786C1 v01.05" date 06/16/2004 bios0: Hewlett-Packard HP Compaq dc7100 SFF(DX878AV) acpi0 at bios0: rev 0 acpi0: sleep states S0 S1 S3 S4 S5 acpi0: tables DSDT FACP SSDT APIC ASF! MCFG acpi0: wakeup devices PCI0(S4) PEG1(S4) PCX1(S4) PCX2(S4) PCX4(S4) HUB_(S4) COM1(S4) COM2(S4) USB1(S3) USB2(S3) USB3(S3) USB4(S3) EUSB(S3) PBTN(S4) acpitimer0 at acpi0: 3579545 Hz, 24 bits acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges cpu0: apic clock running at 199MHz cpu0: mwait min=64, max=64 cpu1 at mainbus0: apid 1 (application processor) cpu1: Intel(R) Pentium(R) 4 CPU 3.00GHz ("GenuineIntel" 686-class) 3 GHz cpu1: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,CNXT-ID,xTPR,PERF ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 20, 24 pins ioapic0: misconfigured as apic 0, remapped to apid 1 acpimcfg0 at acpi0 addr 0xd0000000, bus 0-255 acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus 32 (PCX1) acpiprt2 at acpi0: bus 64 (PCX2) acpiprt3 at acpi0: bus -1 (PCX4) acpiprt4 at acpi0: bus 5 (HUB_) acpicpu0 at acpi0: C1(@1 halt!) acpicpu1 at acpi0: C1(@1 halt!) acpibtn0 at acpi0: PBTN bios0: ROM list: 0xc0000/0xa800! 0xca800/0x1000 0xcb800/0x2000 0xe9c00/0x6400! pci0 at mainbus0 bus 0: configuration mode 1 (bios) pchb0 at pci0 dev 0 function 0 "Intel 82915G Host" rev 0x04 vga1 at pci0 dev 2 function 0 "Intel 82915G Video" rev 0x04 intagp0 at vga1 agp0 at intagp0: aperture at 0xe0000000, size 0x10000000 inteldrm0 at vga1 drm0 at inteldrm0 inteldrm0: 1024x768 wsdisplay0 at vga1 mux 1: console (std, vt100 emulation) wsdisplay0: screen 1-5 added (std, vt100 emulation) "Intel 82915G Video" rev 0x04 at pci0 dev 2 function 1 not configured ppb0 at pci0 dev 28 function 0 "Intel 82801FB PCIE" rev 0x03 pci1 at ppb0 bus 32 ppb1 at pci0 dev 28 function 1 "Intel 82801FB PCIE" rev 0x03: apic 1 int 17 pci2 at ppb1 bus 64 bge0 at pci2 dev 0 function 0 "Broadcom BCM5751" rev 0x01, BCM5750 A1 (0x4001): apic 1 int 17, address 00:12:79:67:d1:01 brgphy0 at bge0 phy 1: BCM5750 10/100/1000baseT PHY, rev. 0 uhci0 at pci0 dev 29 function 0 "Intel 82801FB USB" rev 0x03: apic 1 int 20 uhci1 at pci0 dev 29 function 1 "Intel 82801FB USB" rev 0x03: apic 1 int 18 uhci2 at pci0 dev 29 function 2 "Intel 82801FB USB" rev 0x03: apic 1 int 21 uhci3 at pci0 dev 29 function 3 "Intel 82801FB USB" rev 0x03: apic 1 int 22 ehci0 at pci0 dev 29 function 7 "Intel 82801FB USB" rev 0x03: apic 1 int 20 usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 ppb2 at pci0 dev 30 function 0 "Intel 82801BA Hub-to-PCI" rev 0xd3 pci3 at ppb2 bus 5 auich0 at pci0 dev 30 function 2 "Intel 82801FB AC97" rev 0x03: apic 1 int 21, ICH6 AC97 ac97: codec id 0x41445374 (Analog Devices AD1981B) ac97: codec features headphone, 20 bit DAC, No 3D Stereo audio0 at auich0 ichpcib0 at pci0 dev 31 function 0 "Intel 82801FB LPC" rev 0x03: PM disabled pciide0 at pci0 dev 31 function 1 "Intel 82801FB IDE" rev 0x03: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility atapiscsi0 at pciide0 channel 0 drive 0 scsibus1 at atapiscsi0: 2 targets cd0 at scsibus1 targ 0 lun 0: <PHILIPS, SPD2414T, P1.0> ATAPI 5/cdrom removable cd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 4 pciide0: channel 1 disabled (no drives) pciide1 at pci0 dev 31 function 2 "Intel 82801FB SATA" rev 0x03: DMA, channel 0 configured to native-PCI, channel 1 configured to native-PCI pciide1: using apic 1 int 19 for native-PCI interrupt wd0 at pciide1 channel 0 drive 0: <Maxtor 6E040T0> wd0: 16-sector PIO, LBA48, 38166MB, 78165360 sectors wd0(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 5 usb1 at uhci0: USB revision 1.0 uhub1 at usb1 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb2 at uhci1: USB revision 1.0 uhub2 at usb2 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb3 at uhci2: USB revision 1.0 uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb4 at uhci3: USB revision 1.0 uhub4 at usb4 "Intel UHCI root hub" rev 1.00/1.00 addr 1 isa0 at ichpcib0 isadma0 at isa0 fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo pckbc0 at isa0 port 0x60/5 irq 1 irq 12 pckbd0 at pckbc0 (kbd slot) wskbd0 at pckbd0: console keyboard, using wsdisplay0 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root scsibus3 at softraid0: 256 targets root on wd0a (ae95fd8cdc627913.a) swap on wd0b dump on wd0b My dmesg -s not detecting the mouse: Automatic boot in progress: starting file system checks. /dev/wd0a (ae95fd8cdc627913.a): file system is clean; not checking /dev/wd0k (ae95fd8cdc627913.k): file system is clean; not checking /dev/wd0d (ae95fd8cdc627913.d): file system is clean; not checking /dev/wd0f (ae95fd8cdc627913.f): file system is clean; not checking /dev/wd0g (ae95fd8cdc627913.g): file system is clean; not checking /dev/wd0h (ae95fd8cdc627913.h): file system is clean; not checking /dev/wd0j (ae95fd8cdc627913.j): file system is clean; not checking /dev/wd0i (ae95fd8cdc627913.i): file system is clean; not checking /dev/wd0e (ae95fd8cdc627913.e): file system is clean; not checking setting tty flags pf enabled starting network starting early daemons: syslogd pflogd ntpd. starting RPC daemons:. savecore: no core dump checking quotas: done. clearing /tmp kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd smtpd sndiod. starting local daemons: apmd cron xdm. Tue Nov 10 23:06:23 CET 2015 Replugging the mouse into a different random port (which will also fail later): Console log for test.example.com uhidev0 at uhub3 port 2 configuration 1 interface 0 "vendor 0x0000 USB OPTICA (text continues out of console window's border) uhidev0: iclass 3/1, 1 report id ums0 at uhidev0 reportid 1: 3 buttons, Z dir wsmouse0 at ums0 mux 0 Have a nice day, Paco