Apologies for sending this twice... I believe there were some DMARC issues with
my last send (sending from the system itself).
-ME
> Synopsis: AWS t2.medium GENERIC.MP with 010-intelfpu has floating point
> exceptions \
> with commands like dhclient
> Category: system
> Environment:
System : OpenBSD 6.3
Details : OpenBSD 6.3 (GENERIC.MP) #3: Fri May 18 00:06:26 CEST 2018
r...@syspatch-63-amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
Architecture: OpenBSD.amd64
Machine : amd64
> Description:
Installing 010-intelfpu syspatch on t2.medium causes several commands,
including \
dhclient, to core dump with "Floating point exception". Since AWS EC2
instances do \
not have consoles, if dhclient fails, the system is inaccessible. I have a
single \
processor t2.micro that seems not to have this problem with 010-intelfpu so it
MAY be \
related to GENERIC.MP.
> How-To-Repeat:
Install 010-intelfpu syspatch
> Fix:
Skip the 010-intelfpu patch
dmesg without 010-intelfpu:
OpenBSD 6.3 (GENERIC.MP) #3: Fri May 18 00:06:26 CEST 2018
r...@syspatch-63-amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 4278190080 (4080MB)
avail mem = 4141465600 (3949MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xeb01f (12 entries)
bios0: vendor Xen version "4.2.amazon" date 08/24/2006
bios0: Xen HVM domU
acpi0 at bios0: rev 2
acpi0: sleep states S3 S4 S5
acpi0: tables DSDT FACP APIC HPET WAET SSDT SSDT
acpi0: wakeup devices
acpitimer0 at acpi0: 3579545 Hz, 32 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 11, 48 pins
, remapped to apid 1
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz, 2300.37 MHz
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,M
\
MX,FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,SSSE3,FMA3,CX16,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADL
\
INE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,RDTSCP,LONG,LAHF,ABM,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MELTDOWN
cpu0: 256KB 64b/line 8-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 100MHz
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz, 2300.34 MHz
cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,M
\
MX,FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,SSSE3,FMA3,CX16,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADL
\
INE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,RDTSCP,LONG,LAHF,ABM,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MELTDOWN
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 0, core 0, package 1
acpihpet0 at acpi0: 62500000 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpicpu0 at acpi0: C1(@1 halt!)
acpicpu1 at acpi0: C1(@1 halt!)
"ACPI0007" at acpi0 not configured
"ACPI0007" at acpi0 not configured
pvbus0 at mainbus0: Xen 4.2
xen0 at pvbus0: features 0x705, 360 grant table frames, event channel 4
xbf0 at xen0 backend 0 channel 6: disk
scsibus1 at xbf0: 2 targets
sd0 at scsibus1 targ 0 lun 0: <Xen, phy hda 768, 0000> SCSI3 0/direct fixed
sd0: 32768MB, 512 bytes/sector, 67108864 sectors
xnf0 at xen0 backend 0 channel 7: address 02:dc:76:78:c3:46
"console" at xen0: device/console/0 not configured
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
pciide0: channel 0 disabled (no drives)
pciide0: channel 1 disabled (no drives)
piixpm0 at pci0 dev 1 function 3 "Intel 82371AB Power" rev 0x01: SMBus disabled
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)
xspd0 at pci0 dev 3 function 0 "XenSource Platform Device" rev 0x01
isa0 at pcib0
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
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (3761d978d3682647.a) swap on sd0b dump on sd0b
fd0 at fdc0 drive 0: density unknown
fd1 at fdc0 drive 1: density unknown
usbdevs:
usbdevs: no USB controllers found
dmesg with 010-intelfpu (copied from console log):
[ using 1853128 bytes of bsd ELF symbol table ]
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
Copyright (c) 1995-2018 OpenBSD. All rights reserved. https://www.OpenBSD.org
OpenBSD 6.3 (GENERIC.MP) #4: Sun Jun 17 11:22:20 CEST 2018
r...@syspatch-63-amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 4278190080 (4080MB)
avail mem = 4141453312 (3949MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xeb01f (12 entries)
bios0: vendor Xen version "4.2.amazon" date 08/24/2006
bios0: Xen HVM domU
acpi0 at bios0: rev 2
acpi0: sleep states S3 S4 S5
acpi0: tables DSDT FACP APIC HPET WAET SSDT SSDT
acpi0: wakeup devices
acpitimer0 at acpi0: 3579545 Hz, 32 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 11, 48 pins
, remapped to apid 1
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz, 2300.33 MHz
cpu0
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MM
\
X,FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,SSSE3,FMA3,CX16,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLI
\
NE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,RDTSCP,LONG,LAHF,ABM,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,XSAVEOPT,MELTDOWN
cpu0: 256KB 64b/line 8-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 100MHz
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz, 2300.40 MHz
cpu1:FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MM
\
X,FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,SSSE3,FMA3,CX16,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLI
\
NE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,RDTSCP,LONG,LAHF,ABM,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,XSAVEOPT,MELTDOWN
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 0, core 0, package 1
acpihpet0 at acpi0: 62500000 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpicpu0 at acpi0: C1(@1 halt!)
acpicpu1 at acpi0: C1(@1 halt!)
"ACPI0007" at acpi0 not configured
"ACPI0007" at acpi0 not configured
pvbus0 at mainbus0: Xen 4.2
xen0 at pvbus0: features 0x705, 360 grant table frames, event channel 4
xbf0 at xen0 backend 0 channel 6: disk
scsibus1 at xbf0: 2 targets
sd0 at scsibus1 targ 0 lun 0: <Xen, phy hda 768, 0000> SCSI3 0/direct fixed
sd0: 8192MB, 512 bytes/sector, 16777216 sectors
xnf0 at xen0 backend 0 channel 7: address 02:35:17:3a:ec:50
"console" at xen0: device/console/0 not configured
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
pciide0: channel 0 disabled (no drives)
pciide0: channel 1 disabled (no drives)
piixpm0 at pci0 dev 1 function 3 "Intel 82371AB Power" rev 0x01: SMBus disabled
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)
xspd0 at pci0 dev 3 function 0 "XenSource Platform Device" rev 0x01
isa0 at pcib0
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
com0: console
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (773c560ef8b86fb0.a) swap on sd0b dump on sd0b
Automatic boot in progress: starting file system checks.
/dev/sd0a (773c560ef8b86fb0.a): file system is clean; not checking
/dev/sd0f (773c560ef8b86fb0.f): file system is clean; not checking
/dev/sd0d (773c560ef8b86fb0.d): file system is clean; not checking
/dev/sd0e (773c560ef8b86fb0.e): file system is clean; not checking
setting tty flags
pf enabled
starting network
Floating point exception (core dumped)
WARNING: /etc/hostname.xnf0 is insecure, fixing permissions.
fd0 at fdc0 drive 0: density unknown
Floating point exception (core dumped)
add net 169.254/16: gateway xnf0: Network is unreachable
no IP address found for egress
stdin:1: could not parse host specification
pfctl: Syntax error in config file: pf rules not loaded
Floating point exception (core dumped)
Floating point exception (core dumped)
Floating point exception (core dumped)
reordering libraries:fd1 at fdc0 drive 1: density unknown
done.
starting early daemons: syslogd pflogd(failed) 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.
Floating point exception (core dumped)
starting network daemons: sshd smtpd.
starting local daemons: cron.
Floating point exception (core dumped)
reorder_kernel: kernel relinking failed; see \
/usr/share/relink/kernel/GENERIC.MP/relink.log
OpenBSD/amd64 (mebsd3.int.messagesystems.com) (tty00)
login:
