Date: Thu, 27 Apr 2017 16:22:34 -0700 From: Mark Millard <markmi@dsl-only.net> To: freebsd-arm <freebsd-arm@freebsd.org>, freebsd-hackers@freebsd.org, FreeBSD Current <freebsd-current@freebsd.org> Subject: FYI: example "panic: ARM64TODO: reclaim_pv_chunk" on a Pine64+ 2GB with head -r317015 Message-ID: <4BC7E6BC-4BF9-4F5E-9851-E022AC9A3082@dsl-only.net>
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Unfortunately for this FYI the attempt to produce a dump
failed and so all the information that I have is what I
first captured from the console output: a backtrace.
The context was head -r317015 on a Pine64+ 2GB. At the
time I was experimenting with trying to build a vm.raw
from my own build of FreeBSD. The (root) file system
is on a USB SSD off of a powered USB hub.
panic: ARM64TODO: reclaim_pv_chunk
cpuid = 1
time = 1493332968
KDB: stack backtrace:
db_trace_self() at db_trace_self_wrapper+0x28
pc = 0xffff000000605cc0 lr = 0xffff0000000869cc
sp = 0xffff000083ba4f00 fp = 0xffff000083ba5110
db_trace_self_wrapper() at vpanic+0x164
pc = 0xffff0000000869cc lr = 0xffff00000031d464
sp = 0xffff000083ba5120 fp = 0xffff000083ba5190
vpanic() at panic+0x4c
pc = 0xffff00000031d464 lr = 0xffff00000031d2fc
sp = 0xffff000083ba51a0 fp = 0xffff000083ba5220
panic() at reclaim_pv_chunk+0x10
pc = 0xffff00000031d2fc lr = 0xffff00000061a234
sp = 0xffff000083ba5230 fp = 0xffff000083ba5230
reclaim_pv_chunk() at get_pv_entry+0x240
pc = 0xffff00000061a234 lr = 0xffff000000616184
sp = 0xffff000083ba5240 fp = 0xffff000083ba5260
get_pv_entry() at pmap_enter+0x694
pc = 0xffff000000616184 lr = 0xffff0000006156a0
sp = 0xffff000083ba5270 fp = 0xffff000083ba5300
pmap_enter() at vm_fault_hold+0x28c
pc = 0xffff0000006156a0 lr = 0xffff0000005b9740
sp = 0xffff000083ba5310 fp = 0xffff000083ba5460
vm_fault_hold() at vm_fault+0x70
pc = 0xffff0000005b9740 lr = 0xffff0000005b9464
sp = 0xffff000083ba5470 fp = 0xffff000083ba54a0
vm_fault() at data_abort+0xe0
pc = 0xffff0000005b9464 lr = 0xffff00000061ad94
sp = 0xffff000083ba54b0 fp = 0xffff000083ba5560
data_abort() at handle_el1h_sync+0x70
pc = 0xffff00000061ad94 lr = 0xffff000000607870
sp = 0xffff000083ba5570 fp = 0xffff000083ba5680
handle_el1h_sync() at kern_select+0x9fc
pc = 0xffff000000607870 lr = 0xffff00000037db3c
sp = 0xffff000083ba5690 fp = 0xffff000083ba58f0
kern_select() at sys_select+0x5c
pc = 0xffff00000037db3c lr = 0xffff00000037dc58
sp = 0xffff000083ba5900 fp = 0xffff000083ba5930
sys_select() at do_el0_sync+0xa48
pc = 0xffff00000037dc58 lr = 0xffff00000061b91c
sp = 0xffff000083ba5940 fp = 0xffff000083ba5a70
do_el0_sync() at handle_el0_sync+0x6c
pc = 0xffff00000061b91c lr = 0xffff0000006079e8
sp = 0xffff000083ba5a80 fp = 0xffff000083ba5b90
handle_el0_sync() at 0x4948c
pc = 0xffff0000006079e8 lr = 0x000000000004948c
sp = 0xffff000083ba5ba0 fp = 0x0000ffffffffd960
===
Mark Millard
markmi at dsl-only.net
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