Re: port-amd64/55543: PVHVM fails to attach hypervisor bus on Amazon EC2 t2.micro

To: gnats-bugs%netbsd.org@localhost
Subject: Re: port-amd64/55543: PVHVM fails to attach hypervisor bus on Amazon EC2 t2.micro
From: Jared McNeill <jmcneill%invisible.ca@localhost>
Date: Wed, 9 Sep 2020 08:10:57 -0300 (ADT)

Yep that works:

[   1.0000000] pool redzone disabled for 'pdppl'
[   1.0000000] pool redzone disabled for 'pvpage'
[   1.0000000] pool redzone disabled for 'kmem-04096'
[   1.0000000] Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
[   1.0000000]     2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
[   1.0000000]     2018, 2019, 2020 The NetBSD Foundation, Inc.  All rights reserved.
[   1.0000000] Copyright (c) 1982, 1986, 1989, 1991, 1993
[   1.0000000]     The Regents of the University of California.  All rights reserved.

[   1.0000000] NetBSD 9.99.72 (GENERIC) #7: Tue Sep  8 08:21:35 ADT 2020
[   1.0000000]  jmcneill%starscream.invisible.ca@localhost:/home/jmcneill/netbsd/cvs-src/sys/arch/amd64/compile/obj/GENERIC
[   1.0000000] total memory = 1023 MB
[   1.0000000] avail memory = 966 MB
[   1.0000000] pool redzone disabled for 'buf4k'
[   1.0000000] pool redzone disabled for 'buf64k'
[   1.0000000] entropy: no seed from bootloader
[   1.0000030] mainbus0 (root)
[   1.0000030] Identified Guest XEN in HVM mode.
[   1.0000030] ACPI: RSDP 0x00000000000EA020 000024 (v02 Xen   )
[   1.0000030] ACPI: XSDT 0x00000000FC00E2A0 000054 (v01 Xen    HVM      00000000 HVML 00000000)
[   1.0000030] ACPI: FACP 0x00000000FC00DF60 0000F4 (v04 Xen    HVM      00000000 HVML 00000000)
[   1.0000030] ACPI: DSDT 0x00000000FC0021C0 00BD19 (v02 Xen    HVM      00000000 INTL 20090123)
[   1.0000030] ACPI: FACS 0x00000000FC002180 000040
[   1.0000030] ACPI: APIC 0x00000000FC00E060 0000D8 (v02 Xen    HVM      00000000 HVML 00000000)
[   1.0000030] ACPI: HPET 0x00000000FC00E1B0 000038 (v01 Xen    HVM      00000000 HVML 00000000)
[   1.0000030] ACPI: WAET 0x00000000FC00E1F0 000028 (v01 Xen    HVM      00000000 HVML 00000000)
[   1.0000030] ACPI: SSDT 0x00000000FC00E220 000031 (v02 Xen    HVM      00000000 INTL 20090123)
[   1.0000030] ACPI: SSDT 0x00000000FC00E260 000033 (v02 Xen    HVM      00000000 INTL 20090123)
[   1.0000030] ACPI: 3 ACPI AML tables successfully acquired and loaded
[   1.0000030] ioapic0 at mainbus0 apid 1
[   1.0000030] cpu0 at mainbus0 apid 0
[   1.0000030] cpu0: Intel(R) Xeon(R) CPU E5-2676 v3 @ 2.40GHz, id 0x306f2
[   1.0000030] cpu0: node 0, package 0, core 0, smt 0
[   1.0000030] cpu0: HVM vid 0 cpuid 0 acpid 0/0
[   1.0000030] cpu0: failed to set event upcall vector: -38
[   1.0000030] cpu0: falling back to global vector
[   1.0000030] hypervisor0 at mainbus0: Xen version 4.2.amazon
[   1.0000030] xenbus0 at hypervisor0: Xen Virtual Bus Interface
[   1.0000030] acpi0 at mainbus0: Intel ACPICA 20200717
[   1.0000030] acpi0: fixed power button present
[   1.0000030] acpi0: fixed sleep button present
[   1.0056853] hpet0 at acpi0: high precision event timer (mem 0xfed00000-0xfed00400)
[   1.0113824] MEM0 (PNP0C02) at acpi0 not configured
[   1.0113824] SYSR (PNP0C02) at acpi0 not configured
[   1.0113824] attimer1 at acpi0 (TMR, PNP0100): io 0x40-0x43 irq 0
[   1.0113824] pcppi1 at acpi0 (SPKR, PNP0800): io 0x61
[   1.0113824] spkr0 at pcppi1: PC Speaker
[   1.0113824] wsbell at spkr0 not configured
[   1.0113824] midi0 at pcppi1: PC speaker
[   1.0113824] sysbeep0 at pcppi1
[   1.0113824] pckbc1 at acpi0 (PS2M, PNP0F13) (aux port): irq 12
[   1.0113824] pckbc2 at acpi0 (PS2K, PNP0303) (kbd port): io 0x60,0x64 irq 1
[   1.0113824] FDC0 (PNP0700) at acpi0 not configured
[   1.0113824] UAR1 (PNP0501) at acpi0 not configured
[   1.0113824] HP0 (PNP0C02) at acpi0 not configured
[   1.0113824] ACPI: Enabled 2 GPEs in block 00 to 0F
[   1.0113824] attimer1: attached to pcppi1
[   1.0113824] pckbd0 at pckbc2 (kbd slot)
[   1.0113824] pckbc2: using irq 1 for kbd slot
[   1.0113824] wskbd0 at pckbd0 mux 1
[   1.0113824] pms0 at pckbc2 (aux slot)
[   1.0113824] pckbc2: using irq 12 for aux slot
[   1.0113824] wsmouse0 at pms0 mux 0
[   1.0113824] pci0 at mainbus0 bus 0: configuration mode 1
[   1.0113824] pchb0 at pci0 dev 0 function 0: Intel 82441FX (PMC) PCI and Memory Controller (rev. 0x02)
[   1.0113824] pcib0 at pci0 dev 1 function 0: Intel 82371SB (PIIX3) PCI-ISA Bridge (rev. 0x00)
[   1.0113824] piixide0 at pci0 dev 1 function 1: Intel 82371SB IDE Interface (PIIX3) (rev. 0x00)
[   1.0113824] piixide0: primary channel interrupting at ioapic0 pin 14
[   1.0113824] atabus0 at piixide0 channel 0
[   1.0113824] piixide0: secondary channel interrupting at ioapic0 pin 15
[   1.0113824] atabus1 at piixide0 channel 1
[   1.0113824] piixpm0 at pci0 dev 1 function 3: Intel 82371AB (PIIX4) Power Management Controller (rev. 0x01)
[   1.0113824] piixpm0: 24-bit timer
[   1.0113824] piixpm0: SMBus disabled
[   1.0113824] vga0 at pci0 dev 2 function 0: Cirrus Logic CL-GD5446 (rev. 0x00)
[   1.0113824] wsdisplay0 at vga0 kbdmux 1
[   1.0113824] drm at vga0 not configured
[   1.0113824] XenSource, Inc. Xen Platform Device (undefined, subclass 0x80, revision 0x01) at pci0 dev 3 function 0 not configured
[   1.0113824] isa0 at pcib0
[   1.0113824] com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
[   1.0113824] com0: console
[   1.0113824] fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
[   1.0113824] fdc0: can't set up ISA DMA map
[   1.0113824] acpicpu0 at cpu0: ACPI CPU
[   1.2505649] xenbus_probe (xenbus_probe_init:679) .
[   1.2505649] xenbus_probe (xenbus_probe_frontends:518) probe device.
[   1.2567363] xenbus_probe (xenbus_probe_frontends:520) directory err 0 dir_ (xenbus_probe_device_type:325) probe device/vbd type vbd.
[   1.2667278] xenbus_probe (xenbus_probe_device_type:327) directory err 0 dir_n 1.
[   1.2737434] xenbus_probe (xenbus_probe_device_type:419) xenbus_probe_device_type probe device/vbd/768
[   1.2_otherend_details:200) read_otherend_details: read device/vbd/768/backend returned /local/domain/0/backend/vbd/30762/768
[   1.2737434] .
[   1.2902307] xbd0 at xenbus0 id 768: Xen Virtual Block Device Interface
[   1.2940600] xenbus_probe (xenbus_probe_d   1.3045458] xenbus_probe (xenbus_probe_device_type:327) directory err 0 dir_n 1.
[   1.3137456] xenbus_probe (xenbus_probe_device_type:419) xenbus_probe_device_type probe device/vif/0
[   1.3137456] .
[   1.3137456] xenbus_probe (read_otherend_details:2kend returned /local/domain/0/backend/vif/30762/0
[   1.3137456] .
[   1.3292018] xennet0 at xenbus0 id 0: Xen Virtual Network Interface
[   1.3292018] xennet0: backend features 0x6<SG,RX-COPY>
[   1.3363843] pool redzone disabled for 'xnfrx'
[   1.336384 1.3437442] xenbus_probe (xenbus_probe_backends:551) probe backend.
[   1.3437442] xenbus_probe (xenbus_probe_backends:553) directory err 2 dirt_n 836997024.
[   1.3437442] balloon at xenbus0 id 0 not configured
[   1.3540881] xenbus_probe (xenbus_probe_iotherend_changed:260) state is 4, /local/domain/0/backend/vbd/30762/768/state, /local/domain/0/backend/vbd/30762/768/state.
[   1.3664406] xbd0: 10240 MB, 512 bytes/sect x 20971520 sectors
[   1.3664406] xbd0: backend features 0
[   1.3737203] xbd0: 17065y disklabel
[   1.3737203] xenbus_probe (otherend_changed:260) state is 4, /local/domain/0/backend/vbd/30762/768/state, /local/domain/0/backend/vbd/30762/768/state.
[   1.3859582] xenbus_probe (otherend_changed:260) state is 2, /local/domain/0/backend/vif30762/0/state.
[   1.3859582] xbd0: 17065984 trailing sectors not covered by disklabel
[   1.3980893] xbd0: 17065984 trailing sectors not covered by disklabel
[   1.4037457] xbd0: 17065984 trailing sectors not covered by disklabel
[   1.4037457] xbd0: 17054227] xenbus_probe (frontend_changed:604) frontend_changed device
[   1.4154227] .
[   1.4154227] xenbus_probe (xenbus_probe_frontends:518) probe device.
[   1.4154227] WARNING: 3 errors while detecting hardware; check system log.
[   1.4273735] boot dev
[   1.4273735] xenbus_probe (xenbus_probe_frontends:520) directory err 0 dir_n 3.
[   1.4351365] xenbus_probe (xenbus_probe_device_type:325) probe device/vbd type vbd.
[   1.4351365] xenbus_probe (xenbus_probe_device_type:327) directory err 0 dir_n 1.
[ e:325) probe device/vif type vif.
[   1.4476085] xenbus_probe (xenbus_probe_device_type:327) directory err 0 dir_n 1.
[   1.4476085] xenbus_probe (backend_changed:612) backend_changed backend
[   1.4476085] .
[   1.4564584] xenbus_probe (xenbus_probe_back84 trailing sectors not covered by disklabel
[   1.4637418] xenbus_probe (xenbus_probe_backends:553) directory err 2 dirt_n -2123594272.
[   1.4637418] root file system type: ffs
[   1.4637418] xenbus_probe (frontend_changed:604) frontend_changed device/vprobe_frontends:518) probe device.
[   1.4786151] kern.module.path=/stand/amd64/9.99.72/modules
[   1.4854488] xenbus_probe (xenbus_probe_frontends:520) directory err 0 dir_n 3.
[   1.4854488] xenbus_probe (xenbus_probe_device_type:325) probe device/vbd t32] xenbus_probe (xenbus_probe_device_type:327) directory err 0 dir_n 1.
[   1.4984232] xenbus_probe (xenbus_probe_device_type:325) probe device/vif type vif.
[   1.5068649] xenbus_probe (xenbus_probe_device_type:327) directory err 0 dir_n 1.
[   1.506864/domain/0/backend/vif/30762/0/state, /local/domain/0/backend/vif/30762/0/state.
Wed Sep  9 11:06:41 UTC 2020
Starting root file system check:
/dev/rxbd0a: file system is clean; not checking

Follow-Ups:
- Re: port-amd64/55543: PVHVM fails to attach hypervisor bus on Amazon EC2 t2.micro
  - From: Manuel Bouyer

References:
- Re: port-amd64/55543: PVHVM fails to attach hypervisor bus on Amazon EC2 t2.micro
  - From: Manuel Bouyer

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