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From: Mark Millard <marklmi@yahoo.com>
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Subject: The import of openzfs vs. armv7: boot crashs
Message-Id: <6CB8D120-1600-40E6-8A1E-87E709DCEC8F@yahoo.com>
Date: Tue, 18 Apr 2023 15:44:58 -0700
Cc: "mjg@freebsd.org" <mjg@FreeBSD.org>,
"pjd@freebsd.org" <pjd@FreeBSD.org>,
Kyle Evans <kevans@FreeBSD.org>
To: Current FreeBSD <freebsd-current@freebsd.org>,
freebsd-arm <freebsd-arm@freebsd.org>
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References: <6CB8D120-1600-40E6-8A1E-87E709DCEC8F.ref@yahoo.com>
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h=
ttps://github.com/openzfs/zfs/commit/d0cbd9feaf5b82130f2e679256c71e0c7413a=
ae9
does not seem to cover armv7, just aarch64. (FreeBSD disabled
floating point for both armv7 and aarch64 but that is a
different change than above.)
I used:
=
FreeBSD-14.0-CURRENT-arm-armv7-GENERICSD-20230406-f21faa67ab6b-262010.img.=
xz
booted an RPi2B v1.1 and tried (note the KSTACK_PAGES notice and the
"undefined floating point instruction" notice):
# zpool import
ZFS NOTICE: KSTACK_PAGES is 2 which could result in stack overflow =
panic!
Please consider adding 'options KSTACK_PAGES=3D4' to your kernel config
panic: undefined floating point instruction in supervisor mode
cpuid =3D 2
time =3D 1680784610
KDB: stack backtrace:
db_trace_self() at db_trace_self
pc =3D 0xc05eb154 lr =3D 0xc007a688 =
(db_trace_self_wrapper+0x30)
sp =3D 0xdd25c480 fp =3D 0xdd25c598
db_trace_self_wrapper() at db_trace_self_wrapper+0x30
pc =3D 0xc007a688 lr =3D 0xc02eb1b4 (vpanic+0x140)
sp =3D 0xdd25c5a0 fp =3D 0xdd25c5c0
r4 =3D 0x00000100 r5 =3D 0x00000000
r6 =3D 0xc0736bfc r7 =3D 0xc0b1aea8
vpanic() at vpanic+0x140
pc =3D 0xc02eb1b4 lr =3D 0xc02eaf94 (doadump)
sp =3D 0xdd25c5c8 fp =3D 0xdd25c5cc
r4 =3D 0xc0b92210 r5 =3D 0x00000000
r6 =3D 0xc0610ca0 r7 =3D 0xf4210a0d
r8 =3D 0xddf32e4c r9 =3D 0x00000013
r10 =3D 0xdd25c6c0
doadump() at doadump
pc =3D 0xc02eaf94 lr =3D 0xc0610eb0 (vfp_new_thread)
sp =3D 0xdd25c5d4 fp =3D 0xdd25c638
r4 =3D 0xdd25c6c0 r5 =3D 0xdd25c5cc
r6 =3D 0xc02eaf94 r10 =3D 0xdd25c5d4
vfp_new_thread() at vfp_new_thread
pc =3D 0xc0610eb0 lr =3D 0xc060ff84 =
(undefinedinstruction+0x178)
sp =3D 0xdd25c640 fp =3D 0xdd25c6b8
undefinedinstruction() at undefinedinstruction+0x178
pc =3D 0xc060ff84 lr =3D 0xc05edaa8 (exception_exit)
sp =3D 0xdd25c6c0 fp =3D 0xdd25c750
r4 =3D 0x20000013 r5 =3D 0xde45e000
r6 =3D 0xdd25c890 r7 =3D 0xdd25c8b0
r8 =3D 0x00000000 r9 =3D 0x00000000
r10 =3D 0xdd25c8c0
exception_exit() at exception_exit
pc =3D 0xc05edaa8 lr =3D 0xddf31f20 (K256)
sp =3D 0xdd25c750 fp =3D 0xdd25c750
r0 =3D 0xdd25c890 r1 =3D 0xde45e000
r2 =3D 0xde45e400 r3 =3D 0xddf309fc
r4 =3D 0x00000400 r5 =3D 0xde45e000
r6 =3D 0xdd25c890 r7 =3D 0xdd25c8b0
r8 =3D 0x00000000 r9 =3D 0x00000000
r10 =3D 0xdd25c8c0 r12 =3D 0xdd25c7a0
zfs_sha256_block_neon() at zfs_sha256_block_neon+0x1c
pc =3D 0xddf32e4c lr =3D 0xc0946e8c (pcpup)
sp =3D 0xdd25c758 fp =3D 0xc0b0aeec
r4 =3D 0xc0919610 r5 =3D 0xc0919630
r6 =3D 0xc0919618 r7 =3D 0x642ebce2
r8 =3D 0xc0b1b0ec r9 =3D 0xc0915e88
r10 =3D 0xc0b1b0dc
Fatal kernel mode data abort: 'Translation Fault (L1)' on read
trapframe: 0xdd25c330
FSR=3D00000005, FAR=3D95e29398, spsr=3D200000d3
r0 =3Ddd25c424, r1 =3D81000000, r2 =3D95e29395, r3 =3D55555555
r4 =3Dc08ae93c, r5 =3D00004aa0, r6 =3D00004aa0, r7 =3Dc08d3e3c
r8 =3D00000001, r9 =3Dc079567a, r10=3D0000000b, r11=3Ddd25c3e0
r12=3D00000000, ssp=3Ddd25c3c4, slr=3D00000001, pc =3Dc0610308
panic: Fatal abort
. . . (repeats over and over) . . .
=3D=3D=3D
Mark Millard
marklmi at yahoo.com