In reply to a private reply I received, I sent the following update:
> Does your single-CPU micro instance also provide the same Xen and CPU
> versions? i.e.
Diff below. First machine: t2.small (1 cpu). Second machine: t2.medium (2 cpu)
t2.small:
- GENERIC that ships with 6.3: No problem
- GENERIC with 6.3 010_intelfpu: No problem
- GENERIC.MP that ships with 6.3: No problem
- GENERIC.MP with 6.3 010_intelfpu: No problem
t2.medium:
- GENERIC that ships with 6.3: No problem
- GENERIC with 6.3 010_intelfpu: No problem
- GENERIC.MP that ships with 6.3: No problem
- GENERIC.MP with 6.3 010_intelfpu: Boots but has floating point errors
making it unusable as described
> to me this looks quite fishy since the hardware looks to be supported well by
> OBSD so I would guess on bad iteraction between Xen and OBSD here...
--- dmesg.mwe-1cpu.GENERIC.MP.011 Tue Jul 17 12:20:07 2018
+++ dmesg.mwe-2cpu.GENERIC.MP.011 Tue Jul 17 12:20:07 2018
@@ -1,11 +1,11 @@
OpenBSD 6.3 (GENERIC.MP) #4: Sun Jun 17 11:22:20 CEST 2018
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
-real mem = 2130706432 (2032MB)
-avail mem = 2059116544 (1963MB)
+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 (11 entries)
+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
@@ -17,23 +17,30 @@
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 E5-2676 v3 @ 2.40GHz, 2400.35 MHz
+cpu0: Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz, 2300.34 MHz
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,SSSE3,FMA3,CX16,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,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, 2300.28 MHz
+cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,SSSE3,FMA3,CX16,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,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, 32 grant table frames, event channel 3
-xbf0 at xen0 backend 0 channel 5: disk
+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 6: address 02:38:a9:ed:ca:12
+xnf0 at xen0 backend 0 channel 7: address 02:30:a6:f3:e7:c2
"console" at xen0: device/console/0 not configured
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel 82441FX" rev 0x02
@@ -61,6 +68,6 @@
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
-root on sd0a (c7e9b171ef2a41ab.a) swap on sd0b dump on sd0b
+root on sd0a (e0657587b973b5b4.a) swap on sd0b dump on sd0b
fd0 at fdc0 drive 0: density unknown
fd1 at fdc0 drive 1: density unknown
