Date: Wed, 27 Nov 2019 09:31:31 -0800 From: Mark Millard <marklmi@yahoo.com> To: freebsd-arm@freebsd.org Subject: After more than 59 hr 20 min of poudreire based port building, the Rock64 (4 GiByte) got a data_abort with a panic message that mentioned "vm_fault failed" Message-ID: <F337577B-3ED5-4B72-AB02-2FB10FDB7600@yahoo.com> References: <F337577B-3ED5-4B72-AB02-2FB10FDB7600.ref@yahoo.com>
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The failure was while dwmmc_intr was active on the bus. It looks
like the vm_fault failed address matches the elr value, which is
near the lr value and near the "pc =3D" value listed for dwmmc_intr.
(Back trace shown later.)
This is a head -r355027 based context.
This does not look easy to reproduce.
I had poudriere running 4 jobs, each allowed to use 4 processes,
so the bulk of the time the load average was between 8 and 17.
The last top update (of my extended top) showed top never saw
significant swap usage:
Swap: 4608M Total, 22M Used, 4586M Free, 32M MaxObsUsed
("MaxObs" is short for "Maximum Observed".)
It also showed (line wrapped by me):
Mem: 196M Active, 1078M Inact, 4272K Laundry, 650M Wired, 264M Buf,
2035M Free, 2517M MaxObsActive, 805M MaxObsWired, 3219M MaxObs(Act+Wir)
It showed as running:
/usr/local/sbin/pkg-static create -r =
/wrkdirs/usr/ports/devel/llvm90/work/stage . . .
(earlier llvm80 had completed fine)
and 3 of processes the form:
cpdup -i0 -x ref0?
Those 3 seem to be for the 3 "Building"s listed below:
[59:20:56] [02] [00:14:53] Finished devel/qt5-linguist | =
qt5-linguist-5.13.2: Success
[59:20:57] [02] [00:00:00] Building deskutils/lumina-archiver | =
lumina-archiver-1.5.0
[59:20:57] [03] [00:00:00] Building deskutils/lumina-calculator | =
lumina-calculator-1.5.0
[59:20:57] [04] [00:00:00] Building x11/lumina-core | lumina-core-1.5.0
The serial console's report was:
Fatal data abort:
x0: fffffd0000b45b00
x1: ffff000040588000
x2: 8c
x3: 100
x4: ffff00004035caa0
x5: ffff00004035c7b0
x6: 0
x7: 1
x8: ffff000000758ebc
x9: ffff000000a33100
x10: fffffd0000a28678
x11: 0
x12: 9633b10b
x13: 2af8
x14: 2777
x15: 2af8
x16: 38
x17: 38
x18: ffff00004035c870
x19: fffffd0000a28600
x20: 8c
x21: fffffd0000b45e58
x22: ffff000000a4b000
x23: 0
x24: fffffd0000b45e10
x25: fffffd0000b89514
x26: fffffd0000b8f180
x27: fffffd0000b45e00
x28: ffff000000a4bd98
x29: ffff00004035c8b0
sp: ffff00004035c870
lr: ffff00000078e518
elr: ffff00000078e51c
spsr: 145
far: 28
esr: 96000005
panic: vm_fault failed: ffff00000078e51c
cpuid =3D 2
time =3D 1574872496
KDB: stack backtrace:
db_trace_self() at db_trace_self_wrapper+0x28
pc =3D 0xffff00000075ba9c lr =3D 0xffff0000001066a8
sp =3D 0xffff00004035c270 fp =3D 0xffff00004035c480
db_trace_self_wrapper() at vpanic+0x18c
pc =3D 0xffff0000001066a8 lr =3D 0xffff00000041903c
sp =3D 0xffff00004035c490 fp =3D 0xffff00004035c530
vpanic() at panic+0x44
pc =3D 0xffff00000041903c lr =3D 0xffff000000418eac
sp =3D 0xffff00004035c540 fp =3D 0xffff00004035c5c0
panic() at data_abort+0x1e0
pc =3D 0xffff000000418eac lr =3D 0xffff000000777d94
sp =3D 0xffff00004035c5d0 fp =3D 0xffff00004035c680
data_abort() at do_el1h_sync+0x144
pc =3D 0xffff000000777d94 lr =3D 0xffff000000776fb0
sp =3D 0xffff00004035c690 fp =3D 0xffff00004035c6c0
do_el1h_sync() at handle_el1h_sync+0x78
pc =3D 0xffff000000776fb0 lr =3D 0xffff00000075e078
sp =3D 0xffff00004035c6d0 fp =3D 0xffff00004035c7e0
handle_el1h_sync() at dwmmc_intr+0x280
pc =3D 0xffff00000075e078 lr =3D 0xffff00000078e514
sp =3D 0xffff00004035c7f0 fp =3D 0xffff00004035c8b0
dwmmc_intr() at ithread_loop+0x1f4
pc =3D 0xffff00000078e514 lr =3D 0xffff0000003db604
sp =3D 0xffff00004035c8c0 fp =3D 0xffff00004035c940
ithread_loop() at fork_exit+0x90
pc =3D 0xffff0000003db604 lr =3D 0xffff0000003d7be4
sp =3D 0xffff00004035c950 fp =3D 0xffff00004035c980
fork_exit() at fork_trampoline+0x10
pc =3D 0xffff0000003d7be4 lr =3D 0xffff000000776cec
sp =3D 0xffff00004035c990 fp =3D 0x0000000000000000
KDB: enter: panic
[ thread pid 12 tid 100038 ]
Stopped at dwmmc_intr+0x288: ldr x8, [x23, #40]
db>=20
=3D=3D=3D
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)
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