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Date:      Tue, 2 May 2017 05:24:23 -0700
From:      Mark Millard <markmi@dsl-only.net>
To:        freebsd-arm <freebsd-arm@freebsd.org>, FreeBSD Current <freebsd-current@freebsd.org>
Cc:        "O. Hartmann" <o.hartmann@walstatt.org>, Tom Vijlbrief <tvijlbrief@gmail.com>
Subject:   Re: FYI: [My FreeBSD-12.0-CURRENT-arm64-aarch64.raw ] under qemu-system-aarch64 on odroid-c2 under UbuntuMate :  [A combination that boots]
Message-ID:  <BA05FF2E-179C-46B2-B0B5-7FC4C1AE00E8@dsl-only.net>
In-Reply-To: <B16C20CC-EA3A-461D-8719-7418207572A4@dsl-only.net>
References:  <FF5D8468-CE04-411A-9F3C-10EF5F21D9E5@dsl-only.net> <D2E876BD-A23F-4C33-A0B6-8F1A862C11D6@fubar.geek.nz> <47F6A67D-2D97-4992-96CE-45751190CA86@dsl-only.net> <61C08AFE-0BE8-4BDE-B50C-09268850AE21@fubar.geek.nz> <9D0414D3-7A48-4C37-8710-1AFAA5E2874E@dsl-only.net> <85D4E274-07FC-4E92-8A23-99712FB50707@dsl-only.net> <B16C20CC-EA3A-461D-8719-7418207572A4@dsl-only.net>

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On 2017-May-2, at 3:37 AM, Mark Millard <markmi@dsl-only.net> wrote:

> On 2017-May-2, at 2:53 AM, Mark Millard <markmi@dsl-only.net> wrote:
>=20
>> On 2017-Apr-30, at 10:15 AM, Mark Millard <markmi@dsl-only.net> =
wrote:
>>=20
>>> On 2017-Apr-30, at 9:40 AM, Andrew Turner <andrew at fubar.geek.nz> =
wrote:
>>>=20
>>>>> On 30 Apr 2017, at 12:02, Mark Millard <markmi at dsl-only.net> =
wrote:
>>>>> . . .
>>>>=20
>>>> No, the device tree blob comes from UEFI. It seems the current UEFI =
only provides the ACPI tables, and not a DTB.
>>>=20
>>> So you are expecting that the older QEMU_EFI.fd I had
>>> used before provided some sort of fairly generic dtb
>>> (relative to qemu, fairly independent of the host
>>> that was running qemu). Interesting. Thanks again.
>>> . . .
>>> qemu-system-aarch64 -m 1024M -enable-kvm -cpu host -M virt \
>>> 	-bios QEMU_EFI.fd -nographic \
>>> 	-drive =
format=3Draw,if=3Dnone,file=3DFreeBSD-12.0-CURRENT-arm64-aarch64-20170420-=
r317181.raw,id=3Dhd0 \
>>> 	-device virtio-blk-device,drive=3Dhd0 \
>>> 	-device virtio-net-device,netdev=3Dnet0 \
>>> 	-netdev user,id=3Dnet0 \
>>> 	-smp cpus=3D4
>>>=20
>>> based on:
>>>=20
>>> =
http://snapshots.linaro.org/components/kernel/leg-virt-tianocore-edk2-upst=
ream/1917/QEMU-AARCH64/RELEASE_CLANG35/QEMU_EFI.fd
>>=20
>> Using the following instead lead to booting
>> all the way and being able to login:
>>=20
>> =
https://releases.linaro.org/components/kernel/uefi-linaro/16.02/release/qe=
mu64/QEMU_EFI.fd
>>=20
>> So you were definitely correct.
>>=20
>>> but this time based on my build of head -r317015 .
>>=20
>> This combination seemed more stable than the one
>> from back in 2016-Sept.
>>=20
>> I strongly expect that the official snapshot would
>> boot based on this alternate QEMU_EFI.fd as well,
>> but I've not tried that combination.
>>=20
>> The boot still gets:
>>=20
>> usb_needs_explore_all: no devclass
>>=20
>> during the boot but it does not hang after
>> that message.
>>=20
>> I have not gotten networking going in
>> FreeBSD in the quick try that I made.
>>=20
>> So I still do not have a /usr/src in place
>> to try with a buildworld buildkernel .
>>=20
>> Here is a boot log:
>>=20
>>=20
>>>> FreeBSD EFI boot block
>>  Loader path: /boot/loader.efi
>>=20
>>  Initializing modules: ZFS UFS
>>  Probing 6 block devices.......*. done
>>   ZFS found no pools
>>   UFS found 1 partition
>> Consoles: EFI console =20
>> Command line arguments: loader.efi
>> Image base: 0x79c13000
>> EFI version: 2.60
>> EFI Firmware: EDK II (rev 1.00)
>>=20
>> FreeBSD/arm64 EFI loader, Revision 1.1
>> EFI boot environment
>> Loading /boot/defaults/loader.conf
>> /boot/kernel/kernel text=3D0x7ba068 data=3D0x9e6f8+0x39c3fe =
syms=3D[0x8+0x103b60+0x8+0xf8a79]
>> /boot/entropy size=3D0x1000
>>=20
>> Hit [Enter] to boot immediately, or any other key for command prompt.
>> Booting [/boot/kernel/kernel]...              =20
>> Using DTB provided by EFI at 0x7ffdd000.
>> KDB: debugger backends: ddb
>> KDB: current backend: ddb
>> Copyright (c) 1992-2017 The FreeBSD Project.
>> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, =
1994
>> 	The Regents of the University of California. All rights =
reserved.
>> FreeBSD is a registered trademark of The FreeBSD Foundation.
>> FreeBSD 12.0-CURRENT  r317015M arm64
>> FreeBSD clang version 4.0.0 (tags/RELEASE_400/final 297347) (based on =
LLVM 4.0.0)
>> VT: init without driver.
>> Starting CPU 1 (1)
>> Starting CPU 2 (2)
>> Starting CPU 3 (3)
>> FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
>> random: unblocking device.
>> random: entropy device external interface
>> kbd0 at kbdmux0
>> ofwbus0: <Open Firmware Device Tree>
>> simplebus0: <Flattened device tree simple bus> on ofwbus0
>> clk_fixed0: <Fixed clock> on ofwbus0
>> psci0: <ARM Power State Co-ordination Interface Driver> on ofwbus0
>> gic0: <ARM Generic Interrupt Controller> mem =
0x8000000-0x800ffff,0x8010000-0x801ffff on ofwbus0
>> gic0: pn 0x2, arch 0x2, rev 0x1, implementer 0x43b irqs 288
>> gicv2m0: <ARM Generic Interrupt Controller MSI/MSIX> mem =
0x8020000-0x8020fff on gic0
>> generic_timer0: <ARMv7 Generic Timer> irq 34,35,36,37 on ofwbus0
>> Timecounter "ARM MPCore Timecounter" frequency 24000000 Hz quality =
1000
>> Event timer "ARM MPCore Eventtimer" frequency 24000000 Hz quality =
1000
>> virtio_mmio0: <VirtIO MMIO adapter> mem 0xa000000-0xa0001ff irq 0 on =
ofwbus0
>> virtio_mmio1: <VirtIO MMIO adapter> mem 0xa000200-0xa0003ff irq 1 on =
ofwbus0
>> virtio_mmio2: <VirtIO MMIO adapter> mem 0xa000400-0xa0005ff irq 2 on =
ofwbus0
>> virtio_mmio3: <VirtIO MMIO adapter> mem 0xa000600-0xa0007ff irq 3 on =
ofwbus0
>> virtio_mmio4: <VirtIO MMIO adapter> mem 0xa000800-0xa0009ff irq 4 on =
ofwbus0
>> virtio_mmio5: <VirtIO MMIO adapter> mem 0xa000a00-0xa000bff irq 5 on =
ofwbus0
>> virtio_mmio6: <VirtIO MMIO adapter> mem 0xa000c00-0xa000dff irq 6 on =
ofwbus0
>> virtio_mmio7: <VirtIO MMIO adapter> mem 0xa000e00-0xa000fff irq 7 on =
ofwbus0
>> virtio_mmio8: <VirtIO MMIO adapter> mem 0xa001000-0xa0011ff irq 8 on =
ofwbus0
>> virtio_mmio9: <VirtIO MMIO adapter> mem 0xa001200-0xa0013ff irq 9 on =
ofwbus0
>> virtio_mmio10: <VirtIO MMIO adapter> mem 0xa001400-0xa0015ff irq 10 =
on ofwbus0
>> virtio_mmio11: <VirtIO MMIO adapter> mem 0xa001600-0xa0017ff irq 11 =
on ofwbus0
>> virtio_mmio12: <VirtIO MMIO adapter> mem 0xa001800-0xa0019ff irq 12 =
on ofwbus0
>> virtio_mmio13: <VirtIO MMIO adapter> mem 0xa001a00-0xa001bff irq 13 =
on ofwbus0
>> virtio_mmio14: <VirtIO MMIO adapter> mem 0xa001c00-0xa001dff irq 14 =
on ofwbus0
>> virtio_mmio15: <VirtIO MMIO adapter> mem 0xa001e00-0xa001fff irq 15 =
on ofwbus0
>> virtio_mmio16: <VirtIO MMIO adapter> mem 0xa002000-0xa0021ff irq 16 =
on ofwbus0
>> virtio_mmio17: <VirtIO MMIO adapter> mem 0xa002200-0xa0023ff irq 17 =
on ofwbus0
>> virtio_mmio18: <VirtIO MMIO adapter> mem 0xa002400-0xa0025ff irq 18 =
on ofwbus0
>> virtio_mmio19: <VirtIO MMIO adapter> mem 0xa002600-0xa0027ff irq 19 =
on ofwbus0
>> virtio_mmio20: <VirtIO MMIO adapter> mem 0xa002800-0xa0029ff irq 20 =
on ofwbus0
>> virtio_mmio21: <VirtIO MMIO adapter> mem 0xa002a00-0xa002bff irq 21 =
on ofwbus0
>> virtio_mmio22: <VirtIO MMIO adapter> mem 0xa002c00-0xa002dff irq 22 =
on ofwbus0
>> virtio_mmio23: <VirtIO MMIO adapter> mem 0xa002e00-0xa002fff irq 23 =
on ofwbus0
>> virtio_mmio24: <VirtIO MMIO adapter> mem 0xa003000-0xa0031ff irq 24 =
on ofwbus0
>> virtio_mmio25: <VirtIO MMIO adapter> mem 0xa003200-0xa0033ff irq 25 =
on ofwbus0
>> virtio_mmio26: <VirtIO MMIO adapter> mem 0xa003400-0xa0035ff irq 26 =
on ofwbus0
>> virtio_mmio27: <VirtIO MMIO adapter> mem 0xa003600-0xa0037ff irq 27 =
on ofwbus0
>> virtio_mmio28: <VirtIO MMIO adapter> mem 0xa003800-0xa0039ff irq 28 =
on ofwbus0
>> virtio_mmio29: <VirtIO MMIO adapter> mem 0xa003a00-0xa003bff irq 29 =
on ofwbus0
>> virtio_mmio30: <VirtIO MMIO adapter> mem 0xa003c00-0xa003dff irq 30 =
on ofwbus0
>> vtnet0: <VirtIO Networking Adapter> on virtio_mmio30
>> vtnet0: Ethernet address: 52:54:00:12:34:56
>> virtio_mmio31: <VirtIO MMIO adapter> mem 0xa003e00-0xa003fff irq 31 =
on ofwbus0
>> vtblk0: <VirtIO Block Adapter> on virtio_mmio31
>> vtblk0: 32768MB (67110465 512 byte sectors)
>> pcib0: <Generic PCI host controller> mem 0x3f000000-0x3fffffff on =
ofwbus0
>> pci0: <PCI bus> on pcib0
>> uart0: <PrimeCell UART (PL011)> mem 0x9000000-0x9000fff irq 33 on =
ofwbus0
>> uart0: console (9600,n,8,1)
>> cpulist0: <Open Firmware CPU Group> on ofwbus0
>> cpu0: <Open Firmware CPU> on cpulist0
>> cpu1: <Open Firmware CPU> on cpulist0
>> cpu2: <Open Firmware CPU> on cpulist0
>> cpu3: <Open Firmware CPU> on cpulist0
>> cryptosoft0: <software crypto>
>> Timecounters tick every 10.000 msec
>> usb_needs_explore_all: no devclass
>> Release APs
>> CPU  0: ARM Cortex-A53 r0p4 affinity:  0
>> Instruction Set Attributes 0 =3D <CRC32>
>> Instruction Set Attributes 1 =3D <0>
>>        Processor Features 0 =3D <AdvSIMD,Float,EL3 32,EL2 32,EL1 =
32,EL0 32>
>>        Processor Features 1 =3D <0>
>>     Memory Model Features 0 =3D <4k Granule,64k =
Granule,MixedEndian,S/NS Mem,16bit ASID,1TB PA>
>>     Memory Model Features 1 =3D <>
>>            Debug Features 0 =3D <2 CTX Breakpoints,4 Watchpoints,6 =
Breakpoints,PMUv3,Debug v8>
>>            Debug Features 1 =3D <0>
>>        Auxiliary Features 0 =3D <0>
>>        Auxiliary Features 1 =3D <0>
>> CPU  1: ARM Cortex-A53 r0p4 affinity:  1
>> CPU  2: ARM Cortex-A53 r0p4 affinity:  2
>> CPU  3: ARM Cortex-A53 r0p4 affinity:  3
>> Trying to mount root from ufs:/dev/ufs/rootfs [rw]...
>> warning: no time-of-day clock registered, system time will not be set =
accurately
>> Setting hostuuid: 5f6ed2d1-2dcc-11e7-b81e-f171534e5634.
>> Setting hostid: 0x9f2fff5d.
>> Starting file system checks:
>> /dev/ufs/rootfs: FILE SYSTEM CLEAN; SKIPPING CHECKS
>> /dev/ufs/rootfs: clean, 6154717 free (4485 frags, 768779 blocks, 0.1% =
fragmentation)
>> Mounting local filesystems:.
>> ELF ldconfig path: /lib /usr/lib /usr/lib/compat
>> Setting hostname: ODC2FBSD.
>> Setting up harvesting: =
[UMA],[FS_ATIME],SWI,INTERRUPT,NET_NG,NET_ETHER,NET_TUN,MOUSE,KEYBOARD,ATT=
ACH,CACHED
>> Feeding entropy: .
>> Starting Network: lo0 vtnet0.
>> lo0: flags=3D8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
>> 	options=3D600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
>> 	inet6 ::1 prefixlen 128=20
>> 	inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2=20
>> 	inet 127.0.0.1 netmask 0xff000000=20
>> 	groups: lo=20
>> 	nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL>
>> vtnet0: flags=3D8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
>> 	options=3D80028<VLAN_MTU,JUMBO_MTU,LINKSTATE>
>> 	ether 52:54:00:12:34:56
>> 	media: Ethernet 10Gbase-T <full-duplex>
>> 	status: active
>> 	nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>> Starting devd.
>> Starting Network: vtnet0.
>> vtnet0: flags=3D8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
>> 	options=3D80028<VLAN_MTU,JUMBO_MTU,LINKSTATE>
>> 	ether 52:54:00:12:34:56
>> 	media: Ethernet 10Gbase-T <full-duplex>
>> 	status: active
>> 	nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>> add host 127.0.0.1: gateway lo0 fib 0: route already in table
>> add host ::1: gateway lo0 fib 0: route already in table
>> add net fe80::: gateway ::1
>> add net ff02::: gateway ::1
>> add net ::ffff:0.0.0.0: gateway ::1
>> add net ::0.0.0.0: gateway ::1
>> Creating and/or trimming log files.
>> Starting syslogd.
>> No core dumps found.
>> Clearing /tmp (X related).
>> Updating motd:.
>> Mounting late filesystems:.
>> Starting sendmail_submit.
>> Starting sendmail_msp_queue.
>> Starting cron.
>> Starting background file system checks in 60 seconds.
>>=20
>> Sun Apr 30 18:41:18 UTC 2017
>>=20
>> FreeBSD/arm64 (ODC2FBSD) (ttyu0)
>>=20
>> login:=20
>=20
> FYI:
>=20
> I do sometimes get things like:
>=20
>=20
> System shutdown time has arrived
> Apr 30 19:43:15 ODC2FBSD shutdown: power-down by root:=20
> Sleeping thread (tid 100093, pid 708) owns a non-sleepable lock
> KDB: stack backtrace of thread 100093:
> sched_switch() at mi_switch+0x100
> 	 pc =3D 0xffff000000347d44  lr =3D 0xffff000000327358
> 	 sp =3D 0xffff000040237e00  fp =3D 0xffff000040237e20
>=20
> mi_switch() at sleepq_wait+0x3c
> 	 pc =3D 0xffff000000327358  lr =3D 0xffff00000036c174
> 	 sp =3D 0xffff000040237e30  fp =3D 0xffff000040237e50
>=20
> sleepq_wait() at _sleep+0x29c
> 	 pc =3D 0xffff00000036c174  lr =3D 0xffff000000326c7c
> 	 sp =3D 0xffff000040237e60  fp =3D 0xffff000040237ee0
>=20
> _sleep() at vm_page_sleep_if_busy+0xb0
> 	 pc =3D 0xffff000000326c7c  lr =3D 0xffff0000005cfcf4
> 	 sp =3D 0xffff000040237ef0  fp =3D 0xffff000040237f10
>=20
> vm_page_sleep_if_busy() at vm_fault_hold+0xcc8
> 	 pc =3D 0xffff0000005cfcf4  lr =3D 0xffff0000005ba17c
> 	 sp =3D 0xffff000040237f20  fp =3D 0xffff000040238070
>=20
> vm_fault_hold() at vm_fault+0x70
> 	 pc =3D 0xffff0000005ba17c  lr =3D 0xffff0000005b9464
> 	 sp =3D 0xffff000040238080  fp =3D 0xffff0000402380b0
>=20
> vm_fault() at data_abort+0xe0
> 	 pc =3D 0xffff0000005b9464  lr =3D 0xffff00000061ad94
> 	 sp =3D 0xffff0000402380c0  fp =3D 0xffff000040238170
>=20
> data_abort() at handle_el1h_sync+0x70
> 	 pc =3D 0xffff00000061ad94  lr =3D 0xffff000000607870
> 	 sp =3D 0xffff000040238180  fp =3D 0xffff000040238290
>=20
> handle_el1h_sync() at pmap_enter+0x678
> 	 pc =3D 0xffff000000607870  lr =3D 0xffff000000615684
> 	 sp =3D 0xffff0000402382a0  fp =3D 0xffff0000402383b0
>=20
> pmap_enter() at vm_fault_hold+0x17c0
> 	 pc =3D 0xffff000000615684  lr =3D 0xffff0000005bac74
> 	 sp =3D 0xffff0000402383c0  fp =3D 0xffff000040238510
>=20
> vm_fault_hold() at vm_fault+0x70
> 	 pc =3D 0xffff0000005bac74  lr =3D 0xffff0000005b9464
> 	 sp =3D 0xffff000040238520  fp =3D 0xffff000040238550
>=20
> vm_fault() at data_abort+0xe0
> 	 pc =3D 0xffff0000005b9464  lr =3D 0xffff00000061ad94
> 	 sp =3D 0xffff000040238560  fp =3D 0xffff000040238610
>=20
> data_abort() at handle_el1h_sync+0x70
> 	 pc =3D 0xffff00000061ad94  lr =3D 0xffff000000607870
> 	 sp =3D 0xffff000040238620  fp =3D 0xffff000040238730
>=20
> handle_el1h_sync() at pmap_remove_pages+0x2a8
> 	 pc =3D 0xffff000000607870  lr =3D 0xffff0000006175d4
> 	 sp =3D 0xffff000040238740  fp =3D 0xffff000040238870
>=20
> pmap_remove_pages() at vmspace_exit+0xb0
> 	 pc =3D 0xffff0000006175d4  lr =3D 0xffff0000005c020c
> 	 sp =3D 0xffff000040238880  fp =3D 0xffff0000402388b0
>=20
> vmspace_exit() at exit1+0x604
> 	 pc =3D 0xffff0000005c020c  lr =3D 0xffff0000002db5e0
> 	 sp =3D 0xffff0000402388c0  fp =3D 0xffff000040238920
>=20
> exit1() at sys_sys_exit+0x10
> 	 pc =3D 0xffff0000002db5e0  lr =3D 0xffff0000002dafd8
> 	 sp =3D 0xffff000040238930  fp =3D 0xffff000040238930
>=20
> sys_sys_exit() at do_el0_sync+0xa48
> 	 pc =3D 0xffff0000002dafd8  lr =3D 0xffff00000061b91c
> 	 sp =3D 0xffff000040238940  fp =3D 0xffff000040238a70
>=20
> do_el0_sync() at handle_el0_sync+0x6c
> 	 pc =3D 0xffff00000061b91c  lr =3D 0xffff0000006079e8
> 	 sp =3D 0xffff000040238a80  fp =3D 0xffff000040238b90
>=20
> handle_el0_sync() at 0x38cc0
> 	 pc =3D 0xffff0000006079e8  lr =3D 0x0000000000038cc0
> 	 sp =3D 0xffff000040238ba0  fp =3D 0x0000ffffffffed00
>=20
> panic: sleeping thread
> cpuid =3D 2
> time =3D 1493581440
> KDB: stack backtrace:
> db_trace_self() at db_trace_self_wrapper+0x28
> 	 pc =3D 0xffff000000605cc0  lr =3D 0xffff0000000869cc
> 	 sp =3D 0xffff000065dfd320  fp =3D 0xffff000065dfd530
>=20
> db_trace_self_wrapper() at vpanic+0x164
> 	 pc =3D 0xffff0000000869cc  lr =3D 0xffff00000031d464
> 	 sp =3D 0xffff000065dfd540  fp =3D 0xffff000065dfd5b0
>=20
> vpanic() at panic+0x4c
> 	 pc =3D 0xffff00000031d464  lr =3D 0xffff00000031d2fc
> 	 sp =3D 0xffff000065dfd5c0  fp =3D 0xffff000065dfd640
>=20
> panic() at propagate_priority+0x2d0
> 	 pc =3D 0xffff00000031d2fc  lr =3D 0xffff000000374558
> 	 sp =3D 0xffff000065dfd650  fp =3D 0xffff000065dfd690
>=20
> propagate_priority() at turnstile_wait+0x340
> 	 pc =3D 0xffff000000374558  lr =3D 0xffff00000037503c
> 	 sp =3D 0xffff000065dfd6a0  fp =3D 0xffff000065dfd6e0
>=20
> turnstile_wait() at __rw_wlock_hard+0x208
> 	 pc =3D 0xffff00000037503c  lr =3D 0xffff000000319138
> 	 sp =3D 0xffff000065dfd6f0  fp =3D 0xffff000065dfd770
>=20
> __rw_wlock_hard() at pmap_enter+0xe98
> 	 pc =3D 0xffff000000319138  lr =3D 0xffff000000615ea4
> 	 sp =3D 0xffff000065dfd780  fp =3D 0xffff000065dfd810
>=20
> pmap_enter() at vm_fault_hold+0x28c
> 	 pc =3D 0xffff000000615ea4  lr =3D 0xffff0000005b9740
> 	 sp =3D 0xffff000065dfd820  fp =3D 0xffff000065dfd970
>=20
> vm_fault_hold() at vm_fault+0x70
> 	 pc =3D 0xffff0000005b9740  lr =3D 0xffff0000005b9464
> 	 sp =3D 0xffff000065dfd980  fp =3D 0xffff000065dfd9b0
>=20
> vm_fault() at data_abort+0xe0
> 	 pc =3D 0xffff0000005b9464  lr =3D 0xffff00000061ad94
> 	 sp =3D 0xffff000065dfd9c0  fp =3D 0xffff000065dfda70
>=20
> data_abort() at handle_el0_sync+0x6c
> 	 pc =3D 0xffff00000061ad94  lr =3D 0xffff0000006079e8
> 	 sp =3D 0xffff000065dfda80  fp =3D 0xffff000065dfdb90
>=20
> handle_el0_sync() at 0x40040070
> 	 pc =3D 0xffff0000006079e8  lr =3D 0x0000000040040070
> 	 sp =3D 0xffff000065dfdba0  fp =3D 0x0000ffffffffeb00
>=20
> KDB: enter: panic
> [ thread pid 709 tid 100086 ]
> Stopped at      kdb_enter+0x44: undefined       d4200000
> db>

Another example failure is:

Fatal data abort:
  x0:         400a9000
  x1:             1000
  x2:                0
  x3:               40
  x4:               3f
  x5: fffffd00304e5000
  x6:             2b52
  x7:                c
  x8:                b
  x9: fffffd000076d5d0
 x10:               68
 x11:         40000000
 x12:         704c5000
 x13:         42b42003
 x14:         42b42003
 x15:         40000000
 x16:                c
 x17: ffffffffffffffff
 x18: ffff000065dd5310
 x19:  800000000000000
 x20:                1
 x21: fffffd0002b43000
 x22:  12000004556478b
 x23: f000000000000000
 x24: fffffd0002b41bc8
 x25:               40
 x26: fffffd0002b42548
 x27:               7b
 x28:                3
 x29: ffff000065dd53c0
  sp: ffff000065dd5310
  lr: ffff0000006175d8
 elr: ffff00000060589c
spsr:         60000345
 far:         400a9000
 esr:         96000147
[ thread pid 715 tid 100078 ]
Stopped at      arm64_dcache_wb_range+0x18:     undefined       d50b7a20
db> bt
Tracing pid 715 tid 100078 td 0xfffffd00007849c0
db_trace_self() at db_stack_trace+0xf0
         pc =3D 0xffff000000605cc0  lr =3D 0xffff0000000840e0
         sp =3D 0xffff000065dd4cb0  fp =3D 0xffff000065dd4ce0

db_stack_trace() at db_command+0x23c
         pc =3D 0xffff0000000840e0  lr =3D 0xffff000000083d58
         sp =3D 0xffff000065dd4cf0  fp =3D 0xffff000065dd4dd0

db_command() at db_command_loop+0x60
         pc =3D 0xffff000000083d58  lr =3D 0xffff000000083b00
         sp =3D 0xffff000065dd4de0  fp =3D 0xffff000065dd4e00

db_command_loop() at db_trap+0xf4
         pc =3D 0xffff000000083b00  lr =3D 0xffff000000086b34
         sp =3D 0xffff000065dd4e10  fp =3D 0xffff000065dd5030

db_trap() at kdb_trap+0x180
         pc =3D 0xffff000000086b34  lr =3D 0xffff00000035f650
         sp =3D 0xffff000065dd5040  fp =3D 0xffff000065dd50a0
       =20
kdb_trap() at data_abort+0x1a0
         pc =3D 0xffff00000035f650  lr =3D 0xffff00000061ae54
         sp =3D 0xffff000065dd50b0  fp =3D 0xffff000065dd5160

data_abort() at handle_el1h_sync+0x70
         pc =3D 0xffff00000061ae54  lr =3D 0xffff000000607870
         sp =3D 0xffff000065dd5170  fp =3D 0xffff000065dd5280

handle_el1h_sync() at pmap_remove_pages+0x2a8
         pc =3D 0xffff000000607870  lr =3D 0xffff0000006175d4
         sp =3D 0xffff000065dd5290  fp =3D 0xffff000065dd53c0

pmap_remove_pages() at exec_new_vmspace+0x1a4
         pc =3D 0xffff0000006175d4  lr =3D 0xffff0000002d9da0
         sp =3D 0xffff000065dd53d0  fp =3D 0xffff000065dd5430

exec_new_vmspace() at exec_elf64_imgact+0xa70
         pc =3D 0xffff0000002d9da0  lr =3D 0xffff0000002b7c14
         sp =3D 0xffff000065dd5440  fp =3D 0xffff000065dd5550
       =20
exec_elf64_imgact() at kern_execve+0x664
         pc =3D 0xffff0000002b7c14  lr =3D 0xffff0000002d8730
         sp =3D 0xffff000065dd5560  fp =3D 0xffff000065dd58b0

kern_execve() at sys_execve+0x54
         pc =3D 0xffff0000002d8730  lr =3D 0xffff0000002d7d90
         sp =3D 0xffff000065dd58c0  fp =3D 0xffff000065dd5930

sys_execve() at do_el0_sync+0xa48
         pc =3D 0xffff0000002d7d90  lr =3D 0xffff00000061b91c
         sp =3D 0xffff000065dd5940  fp =3D 0xffff000065dd5a70

do_el0_sync() at handle_el0_sync+0x6c
         pc =3D 0xffff00000061b91c  lr =3D 0xffff0000006079e8
         sp =3D 0xffff000065dd5a80  fp =3D 0xffff000065dd5b90

handle_el0_sync() at 0x24a90
         pc =3D 0xffff0000006079e8  lr =3D 0x0000000000024a90
         sp =3D 0xffff000065dd5ba0  fp =3D 0x0000ffffffffe7d0
       =20
db>=20


=3D=3D=3D
Mark Millard
markmi at dsl-only.net





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