>Synopsis: kernel panic when something attempts to execute user address in
>supervisor mode
>Category: system
>Environment:
System : OpenBSD 5.6
Details : OpenBSD 5.6-stable (GENERIC) #2: Wed Jan 14 10:21:38 PST
2015
r...@new.tilderoot.com:/usr/src/sys/arch/amd64/compile/GENERIC
Architecture: OpenBSD.amd64
Machine : amd64
>Description:
Honestly, I haven't noticed anything that can trigger this. It's
happened during the night when the system is basically idle.
>How-To-Repeat:
Unknown.
>Fix:
Unknown.
dmesg:
OpenBSD 5.6-stable (GENERIC) #2: Wed Jan 14 10:21:38 PST 2015
r...@new.tilderoot.com:/usr/src/sys/arch/amd64/compile/GENERIC
real mem = 1056899072 (1007MB)
avail mem = 1020080128 (972MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xfbd3f (10 entries)
bios0: vendor QEMU version "QEMU" date 01/01/2007
acpi0 at bios0: rev 0
acpi0: sleep states S3 S4 S5
acpi0: tables DSDT FACP APIC
acpi0: wakeup devices
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: QEMU Virtual CPU version 0.9.1, 2667.11 MHz
cpu0:
FPU,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3,NXE,LONG,PERF
cpu0: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line
16-way L2 cache
cpu0: ITLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu0: DTLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 1000MHz
ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 11, 24 pins
ioapic0: misconfigured as apic 0, remapped to apid 1
acpiprt0 at acpi0: bus 0 (PCI0)
acpicpu0 at acpi0
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel 82441FX" rev 0x02
pcib0 at pci0 dev 1 function 0 "Intel 82371SB ISA" rev 0x00
pciide0 at pci0 dev 1 function 1 "Intel 82371SB IDE" rev 0x00: DMA, channel 0
wired to compatibility, channel 1 wired to compatibility
wd0 at pciide0 channel 0 drive 0: <QEMU HARDDISK>
wd0: 16-sector PIO, LBA48, 40960MB, 83886080 sectors
atapiscsi0 at pciide0 channel 0 drive 1
scsibus1 at atapiscsi0: 2 targets
cd0 at scsibus1 targ 0 lun 0: <QEMU, QEMU DVD-ROM, 0.9.> ATAPI 5/cdrom removable
wd0(pciide0:0:0): using PIO mode 0, DMA mode 2
cd0(pciide0:0:1): using PIO mode 0
atapiscsi1 at pciide0 channel 1 drive 0
scsibus2 at atapiscsi1: 2 targets
cd1 at scsibus2 targ 0 lun 0: <QEMU, QEMU DVD-ROM, 0.9.> ATAPI 5/cdrom removable
cd1(pciide0:1:0): using PIO mode 0
uhci0 at pci0 dev 1 function 2 "Intel 82371SB USB" rev 0x01: apic 1 int 11
piixpm0 at pci0 dev 1 function 3 "Intel 82371AB Power" rev 0x03: apic 1 int 10
iic0 at piixpm0
iic0: addr 0x18 00=00 01=00 02=00 03=00 04=00 05=00 06=00 07=00 08=00 words
00=0000 01=0000 02=0000 03=0000 04=0000 05=0000 06=0000 07=0000
iic0: addr 0x1a 00=00 01=00 02=00 03=00 04=00 05=00 06=00 07=00 08=00 words
00=0000 01=0000 02=0000 03=0000 04=0000 05=0000 06=0000 07=0000
iic0: addr 0x29 00=00 01=00 02=00 03=00 04=00 05=00 06=00 07=00 08=00 words
00=0000 01=0000 02=0000 03=0000 04=0000 05=0000 06=0000 07=0000
iic0: addr 0x2b 00=00 01=00 02=00 03=00 04=00 05=00 06=00 07=00 08=00 words
00=0000 01=0000 02=0000 03=0000 04=0000 05=0000 06=0000 07=0000
iic0: addr 0x4c 00=00 01=00 02=00 03=00 04=00 05=00 06=00 07=00 08=00 words
00=0000 01=0000 02=0000 03=0000 04=0000 05=0000 06=0000 07=0000
iic0: addr 0x4e 00=00 01=00 02=00 03=00 04=00 05=00 06=00 07=00 08=00 words
00=0000 01=0000 02=0000 03=0000 04=0000 05=0000 06=0000 07=0000
vga1 at pci0 dev 2 function 0 "Cirrus Logic CL-GD5446" rev 0x00
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
em0 at pci0 dev 3 function 0 "Intel 82540EM" rev 0x03: apic 1 int 11, address
52:54:00:27:31:70
virtio0 at pci0 dev 4 function 0 "Qumranet Virtio Memory" rev 0x00: Virtio
Memory Balloon Device
viomb0 at virtio0
virtio0: apic 1 int 11
virtio1 at pci0 dev 5 function 0 "Qumranet Virtio Console" rev 0x00: Virtio
Console Device
virtio1: no matching child driver; not configured
isa0 at pcib0
isadma0 at isa0
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
com0: console
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
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
fd0 at fdc0 drive 0: density unknown
fd1 at fdc0 drive 1: density unknown
usb0 at uhci0: USB revision 1.0
uhub0 at usb0 "Intel UHCI root hub" rev 1.00/1.00 addr 1
nvram: invalid checksum
vscsi0 at root
scsibus3 at vscsi0: 256 targets
softraid0 at root
scsibus4 at softraid0: 256 targets
root on wd0a (4b065d5d21359f13.a) swap on wd0b dump on wd0b
WARNING: / was not properly unmounted
clock: unknown CMOS layout
usbdevs:
Controller /dev/usb0:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000),
Intel(0x8086), rev 1.00
port 1 powered
port 2 powered
ddb output (tail end of dmesg from there too):
kernel: double fault trap, code=0
Stopped at 0: panic: attempt to execute user address 0x8eddc0 in supe
rvisor mode
Stopped at Debugger+0x9: leave
RUN AT LEAST 'trace' AND 'ps' AND INCLUDE OUTPUT WHEN REPORTING THIS PANIC!
DO NOT EVEN BOTHER REPORTING THIS WITHOUT INCLUDING THAT INFORMATION!
ddb> ddb>
ddb> trace
Debugger() at Debugger+0x9
panic() at panic+0xfe
trap() at trap+0x786
--- trap (number 6) ---
acpi_pdirpa() at acpi_pdirpa+0x8dc880
db_get_value() at db_get_value+0x34
db_disasm() at db_disasm+0x42
db_trap() at db_trap+0x90
kdb_trap() at kdb_trap+0xc5
trap() at trap+0x13d
--- trap (number 13) ---
end of kernel
end trace frame: 0x714ab64b010, count: -9
0:
ddb> ps
PID PPID PGRP UID S FLAGS WAIT COMMAND
16582 1760 1760 507 3 0x92 kqread pickup
*25181 16324 8118 97 7 0x10 nsd
16324 8118 8118 97 3 0x90 select nsd
8118 1 8118 97 3 0x90 kqread nsd
16671 8770 16671 1000 3 0x83 ttyin zsh
15854 1 9298 0 3 0x80 select python2.7
8351 1 9298 0 3 0x4000080 select python2.7
24643 1 9298 0 3 0x4000080 select python2.7
32457 8770 32457 1000 3 0x83 ttyin zsh
8770 1 8770 1000 2 0x480 tmux
11083 1760 1760 507 3 0x92 kqread tlsmgr
11607 1 11607 0 3 0x83 ttyin getty
32331 1 32331 0 3 0x83 ttyin getty
6147 1 6147 0 3 0x83 ttyin getty
16223 1 16223 0 3 0x83 ttyin getty
18257 1 18257 0 3 0x83 ttyin getty
7582 1 7582 0 3 0x83 ttyin getty
2686 1 2686 0 3 0x80 select cron
18282 1760 1760 507 3 0x92 kqread qmgr
1760 1 1760 0 3 0x90 kqread master
1673 1 1673 99 3 0x90 poll sndiod
25594 30805 30805 67 3 0x90 kqread nginx
30805 1 30805 0 3 0x88 pause nginx
19095 6970 6970 95 3 0x90 kqread smtpd
18397 6970 6970 95 3 0x90 kqread smtpd
30700 6970 6970 95 3 0x90 kqread smtpd
2318 6970 6970 95 3 0x90 kqread smtpd
25887 6970 6970 95 3 0x90 kqread smtpd
11667 6970 6970 103 3 0x90 kqread smtpd
6970 1 6970 0 3 0x80 kqread smtpd
12002 1 12002 0 3 0x80 select sshd
18261 25126 17015 83 3 0x90 poll ntpd
25126 17015 17015 83 3 0x90 poll ntpd
17015 1 17015 0 3 0x80 poll ntpd
27765 6531 6531 74 3 0x90 bpf pflogd
6531 1 6531 0 3 0x80 netio pflogd
26079 29121 29121 73 3 0x90 poll syslogd
29121 1 29121 0 3 0x80 netio syslogd
8789 0 0 0 3 0x14200 aiodoned aiodoned
16757 0 0 0 3 0x14200 syncer update
4019 0 0 0 3 0x14200 cleaner cleaner
20497 0 0 0 3 0x14200 reaper reaper
21995 0 0 0 3 0x14200 pgdaemon pagedaemon
28484 0 0 0 3 0x14200 bored crypto
30865 0 0 0 3 0x14200 pftm pfpurge
29905 0 0 0 3 0x14200 usbtsk usbtask
13162 0 0 0 3 0x14200 usbatsk usbatsk
3323 0 0 0 3 0x14200 bored viomb
31057 0 0 0 3 0x40014200 acpi0 acpi0
354 0 0 0 3 0x14200 bored systqmp
28515 0 0 0 3 0x14200 bored systq
20019 0 0 0 3 0x14200 bored syswq
13787 0 0 0 3 0x40014200 idle0
1 0 1 0 3 0x82 wait init
0 -1 0 0 3 0x10200 scheduler swapper
