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

> On 2017-May-2, at 2:53 AM, Mark Millard <mar...@dsl-only.net> wrote:
> 
>> On 2017-Apr-30, at 10:15 AM, Mark Millard <mar...@dsl-only.net> wrote:
>> 
>>> On 2017-Apr-30, at 9:40 AM, Andrew Turner <andrew at fubar.geek.nz> wrote:
>>> 
>>>>> On 30 Apr 2017, at 12:02, Mark Millard <markmi at dsl-only.net> wrote:
>>>>> . . .
>>>> 
>>>> No, the device tree blob comes from UEFI. It seems the current UEFI only 
>>>> provides the ACPI tables, and not a DTB.
>>> 
>>> 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=raw,if=none,file=FreeBSD-12.0-CURRENT-arm64-aarch64-20170420-r317181.raw,id=hd0
>>>  \
>>>     -device virtio-blk-device,drive=hd0 \
>>>     -device virtio-net-device,netdev=net0 \
>>>     -netdev user,id=net0 \
>>>     -smp cpus=4
>>> 
>>> based on:
>>> 
>>> http://snapshots.linaro.org/components/kernel/leg-virt-tianocore-edk2-upstream/1917/QEMU-AARCH64/RELEASE_CLANG35/QEMU_EFI.fd
>> 
>> Using the following instead lead to booting
>> all the way and being able to login:
>> 
>> https://releases.linaro.org/components/kernel/uefi-linaro/16.02/release/qemu64/QEMU_EFI.fd
>> 
>> So you were definitely correct.
>> 
>>> but this time based on my build of head -r317015 .
>> 
>> This combination seemed more stable than the one
>> from back in 2016-Sept.
>> 
>> 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.
>> 
>> The boot still gets:
>> 
>> usb_needs_explore_all: no devclass
>> 
>> during the boot but it does not hang after
>> that message.
>> 
>> I have not gotten networking going in
>> FreeBSD in the quick try that I made.
>> 
>> So I still do not have a /usr/src in place
>> to try with a buildworld buildkernel .
>> 
>> Here is a boot log:
>> 
>> 
>>>> FreeBSD EFI boot block
>>  Loader path: /boot/loader.efi
>> 
>>  Initializing modules: ZFS UFS
>>  Probing 6 block devices.......*. done
>>   ZFS found no pools
>>   UFS found 1 partition
>> Consoles: EFI console  
>> Command line arguments: loader.efi
>> Image base: 0x79c13000
>> EFI version: 2.60
>> EFI Firmware: EDK II (rev 1.00)
>> 
>> FreeBSD/arm64 EFI loader, Revision 1.1
>> EFI boot environment
>> Loading /boot/defaults/loader.conf
>> /boot/kernel/kernel text=0x7ba068 data=0x9e6f8+0x39c3fe 
>> syms=[0x8+0x103b60+0x8+0xf8a79]
>> /boot/entropy size=0x1000
>> 
>> Hit [Enter] to boot immediately, or any other key for command prompt.
>> Booting [/boot/kernel/kernel]...               
>> 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 = <CRC32>
>> Instruction Set Attributes 1 = <0>
>>        Processor Features 0 = <AdvSIMD,Float,EL3 32,EL2 32,EL1 32,EL0 32>
>>        Processor Features 1 = <0>
>>     Memory Model Features 0 = <4k Granule,64k Granule,MixedEndian,S/NS 
>> Mem,16bit ASID,1TB PA>
>>     Memory Model Features 1 = <>
>>            Debug Features 0 = <2 CTX Breakpoints,4 Watchpoints,6 
>> Breakpoints,PMUv3,Debug v8>
>>            Debug Features 1 = <0>
>>        Auxiliary Features 0 = <0>
>>        Auxiliary Features 1 = <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,ATTACH,CACHED
>> Feeding entropy: .
>> Starting Network: lo0 vtnet0.
>> lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
>>      options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
>>      inet6 ::1 prefixlen 128 
>>      inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2 
>>      inet 127.0.0.1 netmask 0xff000000 
>>      groups: lo 
>>      nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
>> vtnet0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
>>      options=80028<VLAN_MTU,JUMBO_MTU,LINKSTATE>
>>      ether 52:54:00:12:34:56
>>      media: Ethernet 10Gbase-T <full-duplex>
>>      status: active
>>      nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>> Starting devd.
>> Starting Network: vtnet0.
>> vtnet0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
>>      options=80028<VLAN_MTU,JUMBO_MTU,LINKSTATE>
>>      ether 52:54:00:12:34:56
>>      media: Ethernet 10Gbase-T <full-duplex>
>>      status: active
>>      nd6 options=29<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.
>> 
>> Sun Apr 30 18:41:18 UTC 2017
>> 
>> FreeBSD/arm64 (ODC2FBSD) (ttyu0)
>> 
>> login: 
> 
> FYI:
> 
> I do sometimes get things like:
> 
> 
> System shutdown time has arrived
> Apr 30 19:43:15 ODC2FBSD shutdown: power-down by root: 
> Sleeping thread (tid 100093, pid 708) owns a non-sleepable lock
> KDB: stack backtrace of thread 100093:
> sched_switch() at mi_switch+0x100
>        pc = 0xffff000000347d44  lr = 0xffff000000327358
>        sp = 0xffff000040237e00  fp = 0xffff000040237e20
> 
> mi_switch() at sleepq_wait+0x3c
>        pc = 0xffff000000327358  lr = 0xffff00000036c174
>        sp = 0xffff000040237e30  fp = 0xffff000040237e50
> 
> sleepq_wait() at _sleep+0x29c
>        pc = 0xffff00000036c174  lr = 0xffff000000326c7c
>        sp = 0xffff000040237e60  fp = 0xffff000040237ee0
> 
> _sleep() at vm_page_sleep_if_busy+0xb0
>        pc = 0xffff000000326c7c  lr = 0xffff0000005cfcf4
>        sp = 0xffff000040237ef0  fp = 0xffff000040237f10
> 
> vm_page_sleep_if_busy() at vm_fault_hold+0xcc8
>        pc = 0xffff0000005cfcf4  lr = 0xffff0000005ba17c
>        sp = 0xffff000040237f20  fp = 0xffff000040238070
> 
> vm_fault_hold() at vm_fault+0x70
>        pc = 0xffff0000005ba17c  lr = 0xffff0000005b9464
>        sp = 0xffff000040238080  fp = 0xffff0000402380b0
> 
> vm_fault() at data_abort+0xe0
>        pc = 0xffff0000005b9464  lr = 0xffff00000061ad94
>        sp = 0xffff0000402380c0  fp = 0xffff000040238170
> 
> data_abort() at handle_el1h_sync+0x70
>        pc = 0xffff00000061ad94  lr = 0xffff000000607870
>        sp = 0xffff000040238180  fp = 0xffff000040238290
> 
> handle_el1h_sync() at pmap_enter+0x678
>        pc = 0xffff000000607870  lr = 0xffff000000615684
>        sp = 0xffff0000402382a0  fp = 0xffff0000402383b0
> 
> pmap_enter() at vm_fault_hold+0x17c0
>        pc = 0xffff000000615684  lr = 0xffff0000005bac74
>        sp = 0xffff0000402383c0  fp = 0xffff000040238510
> 
> vm_fault_hold() at vm_fault+0x70
>        pc = 0xffff0000005bac74  lr = 0xffff0000005b9464
>        sp = 0xffff000040238520  fp = 0xffff000040238550
> 
> vm_fault() at data_abort+0xe0
>        pc = 0xffff0000005b9464  lr = 0xffff00000061ad94
>        sp = 0xffff000040238560  fp = 0xffff000040238610
> 
> data_abort() at handle_el1h_sync+0x70
>        pc = 0xffff00000061ad94  lr = 0xffff000000607870
>        sp = 0xffff000040238620  fp = 0xffff000040238730
> 
> handle_el1h_sync() at pmap_remove_pages+0x2a8
>        pc = 0xffff000000607870  lr = 0xffff0000006175d4
>        sp = 0xffff000040238740  fp = 0xffff000040238870
> 
> pmap_remove_pages() at vmspace_exit+0xb0
>        pc = 0xffff0000006175d4  lr = 0xffff0000005c020c
>        sp = 0xffff000040238880  fp = 0xffff0000402388b0
> 
> vmspace_exit() at exit1+0x604
>        pc = 0xffff0000005c020c  lr = 0xffff0000002db5e0
>        sp = 0xffff0000402388c0  fp = 0xffff000040238920
> 
> exit1() at sys_sys_exit+0x10
>        pc = 0xffff0000002db5e0  lr = 0xffff0000002dafd8
>        sp = 0xffff000040238930  fp = 0xffff000040238930
> 
> sys_sys_exit() at do_el0_sync+0xa48
>        pc = 0xffff0000002dafd8  lr = 0xffff00000061b91c
>        sp = 0xffff000040238940  fp = 0xffff000040238a70
> 
> do_el0_sync() at handle_el0_sync+0x6c
>        pc = 0xffff00000061b91c  lr = 0xffff0000006079e8
>        sp = 0xffff000040238a80  fp = 0xffff000040238b90
> 
> handle_el0_sync() at 0x38cc0
>        pc = 0xffff0000006079e8  lr = 0x0000000000038cc0
>        sp = 0xffff000040238ba0  fp = 0x0000ffffffffed00
> 
> panic: sleeping thread
> cpuid = 2
> time = 1493581440
> KDB: stack backtrace:
> db_trace_self() at db_trace_self_wrapper+0x28
>        pc = 0xffff000000605cc0  lr = 0xffff0000000869cc
>        sp = 0xffff000065dfd320  fp = 0xffff000065dfd530
> 
> db_trace_self_wrapper() at vpanic+0x164
>        pc = 0xffff0000000869cc  lr = 0xffff00000031d464
>        sp = 0xffff000065dfd540  fp = 0xffff000065dfd5b0
> 
> vpanic() at panic+0x4c
>        pc = 0xffff00000031d464  lr = 0xffff00000031d2fc
>        sp = 0xffff000065dfd5c0  fp = 0xffff000065dfd640
> 
> panic() at propagate_priority+0x2d0
>        pc = 0xffff00000031d2fc  lr = 0xffff000000374558
>        sp = 0xffff000065dfd650  fp = 0xffff000065dfd690
> 
> propagate_priority() at turnstile_wait+0x340
>        pc = 0xffff000000374558  lr = 0xffff00000037503c
>        sp = 0xffff000065dfd6a0  fp = 0xffff000065dfd6e0
> 
> turnstile_wait() at __rw_wlock_hard+0x208
>        pc = 0xffff00000037503c  lr = 0xffff000000319138
>        sp = 0xffff000065dfd6f0  fp = 0xffff000065dfd770
> 
> __rw_wlock_hard() at pmap_enter+0xe98
>        pc = 0xffff000000319138  lr = 0xffff000000615ea4
>        sp = 0xffff000065dfd780  fp = 0xffff000065dfd810
> 
> pmap_enter() at vm_fault_hold+0x28c
>        pc = 0xffff000000615ea4  lr = 0xffff0000005b9740
>        sp = 0xffff000065dfd820  fp = 0xffff000065dfd970
> 
> vm_fault_hold() at vm_fault+0x70
>        pc = 0xffff0000005b9740  lr = 0xffff0000005b9464
>        sp = 0xffff000065dfd980  fp = 0xffff000065dfd9b0
> 
> vm_fault() at data_abort+0xe0
>        pc = 0xffff0000005b9464  lr = 0xffff00000061ad94
>        sp = 0xffff000065dfd9c0  fp = 0xffff000065dfda70
> 
> data_abort() at handle_el0_sync+0x6c
>        pc = 0xffff00000061ad94  lr = 0xffff0000006079e8
>        sp = 0xffff000065dfda80  fp = 0xffff000065dfdb90
> 
> handle_el0_sync() at 0x40040070
>        pc = 0xffff0000006079e8  lr = 0x0000000040040070
>        sp = 0xffff000065dfdba0  fp = 0x0000ffffffffeb00
> 
> 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 = 0xffff000000605cc0  lr = 0xffff0000000840e0
         sp = 0xffff000065dd4cb0  fp = 0xffff000065dd4ce0

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

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

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

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

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

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

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

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

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

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

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

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


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


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