Re: armv7 main's gpart [show]: signal 11 core dump during boot, before login; xo_format_string_direct; official pkgbase distribution (kernel and world)
- Reply: Mark Millard : "Re: armv7 main's gpart [show]: signal 11 core dump during boot, before login; xo_format_string_direct; official pkgbase distribution (kernel and world)"
- In reply to: Mark Millard : "Re: armv7 main's gpart [show]: signal 11 core dump during boot, before login; xo_format_string_direct; official pkgbase distribution (kernel and world)"
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Date: Sun, 28 Dec 2025 19:16:20 UTC
The output of "kern.geom.confxml" would also be useful. Also, I
suggest that we move this discussion into Bugzilla.
On Sun, Dec 28, 2025 at 11:33 AM Mark Millard <marklmi@yahoo.com> wrote:
>
> On Dec 28, 2025, at 08:54, Mark Millard <marklmi@yahoo.com> wrote:
>
> > [Resend including freebsd-arm.]
> >
> > On Dec 28, 2025, at 08:48, Mark Millard <marklmi@yahoo.com> wrote:
> >
> > js@freebsd.org <js_at_FreeBSD.org> wrote on
> > Date: Sun, 28 Dec 2025 11:01:59 UTC :
> >
> >> I'll take a look at it and try to setup a reproducer, unfortunately my
> >> time is a bit limited during the holidays so I can't promise any quick
> >> fixes right now.
> >>
> >> Could you share the output of
> >>
> >> gpart --libxo:JP show
> >>
> >> with me? If possible.
> >
> > On the Orange Pi Plus 2e (Cortex-A7, not aarch64,
> > just armv7):
> >
> > # gpart --libxo:JP show
> > Segmentation fault (core dumped)
> >
> > I'll note that the 0x6e480000 in r0 that is shown
> > later below is the same failing address reported
> > in my original list submittal about the issue.
> >
> >
> > For reference:
> >
> > (gdb) bt
> > #0 strlen () at /usr/src/lib/libc/arm/string/strlen.S:46
> > #1 0x20151020 in xo_format_string (xop=0x2009b120, xbp=0x2009b150, flags=4096, xfp=0xbfbfd1f8) at /usr/src/contrib/libxo/libxo/libxo.c:2966
> > #2 xo_do_format_field (xop=<optimized out>, xop@entry=0x2009b120, xbp=0x2009b150, fmt=fmt@entry=0xbfbfd268 "%s", flen=<optimized out>, flags=4096) at /usr/src/contrib/libxo/libxo/libxo.c:3503
> > #3 0x2014d0a8 in xo_simple_field (xop=0x2009b120, encode_only=0, value=0x0, vlen=0, fmt=0xbfbfd268 "%s", flen=2, flags=4096) at /usr/src/contrib/libxo/libxo/libxo.c:3817
> > #4 xo_format_value (xop=<optimized out>, xop@entry=0x2009b120, name=name@entry=0x204bf931 "state}\n", nlen=nlen@entry=5, value=0x0, vlen=0, fmt=0xbfbfd268 "%s", flen=2, encoding=0x0, elen=0,
> > flags=4096) at /usr/src/contrib/libxo/libxo/libxo.c:4535
> > #5 0x20148710 in xo_do_emit_fields (xop=<optimized out>, xop@entry=0x2009b120, fields=<optimized out>, fields@entry=0xbfbfd768, max_fields=max_fields@entry=17, fmt=<optimized out>)
> > at /usr/src/contrib/libxo/libxo/libxo.c:6372
> > #6 0x201476a0 in xo_do_emit (xop=xop@entry=0x2009b120, flags=<optimized out>, fmt=fmt@entry=0x204bf8e3 "=>{t:start/%*jd} {t:sectors/%*jd} {t:name/%*s} {:scheme} ({h:size/%ld}){t:state}\n")
> > at /usr/src/contrib/libxo/libxo/libxo.c:6551
> > #7 0x20147840 in xo_emit (fmt=0x204bf8e3 "=>{t:start/%*jd} {t:sectors/%*jd} {t:name/%*s} {:scheme} ({h:size/%ld}){t:state}\n") at /usr/src/contrib/libxo/libxo/libxo.c:6622
> > #8 0x204d1fd4 in gpart_show_geom (gp=gp@entry=0x20089168, element=element@entry=0x204bfe51 "type", show_providers=show_providers@entry=0) at /usr/src/lib/geom/part/geom_part.c:654
> > #9 0x204d1048 in gpart_show (req=0x20089000, fl=<optimized out>) at /usr/src/lib/geom/part/geom_part.c:793
> > #10 0x000230dc in run_command (argc=0, argv=<optimized out>) at /usr/src/sbin/geom/core/geom.c:497
> > #11 0x00022308 in main (argc=1, argv=0xbfbfed10) at /usr/src/sbin/geom/core/geom.c:861
> > (gdb) list
> > . . .
> >
>
> I'll note that the details are different, but I get failures
> in an armv7 chroot on aarch64 that supports armv7 code. So
> that is another type of environment that might be of use based
> on pkgbase distribution materials.
>
> Your --libxo:JP command in that context gets some output
> before also getting a segmentation fault:
>
> # gpart --libxo:JP show
> {
> "__version": "1",
> "PART": [
> {
> "start": 34,
> "sectors": 1000215149,
> "name": "nda0",
> "scheme": "GPT",
> "size": 2,
> "state": "(null)",
> "partitions": [
> {
> "start": 34,
> "sectors": 2014,
> "free": true,
> "size": 2
> },
> {
> "start": 2048,
> "sectors": 532480,
> "index": 1,
> "name": "nda0p1",
> "type": "efi",
> "label": "EFI system partition",
> "rawtype": "c12a7328-f81f-11d2-ba4b-00a0c93ec93b",
> "size": 541854500
> },
> {
> "start": 534528,
> "sectors": 32768,
> "index": 2,
> "name": "nda0p2",
> "type": "ms-reserved",
> "label": "Microsoft reserved partition",
> "rawtype": "e3c9e316-0b5c-4db8-817d-f92df00215ae",
> "size": 541854500
> },
> {
> "start": 567296,
> "sectors": 997287936,
> "index": 3,
> "name": "nda0p3",
> "type": "ms-basic-data",
> "label": "Basic data partition",
> "rawtype": "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7",
> "size": 541854500
> },
> {
> "start": 997855232,
> "sectors": 2359296,
> "index": 4,
> "name": "nda0p4",
> "type": "ms-recovery",
> "label": "(null)",
> "rawtype": "de94bba4-06d1-4d40-a16a-bfd50179d6ac",
> "size": 541854500
> },
> {
> "start": 1000214528,
> "sectors": 655,
> "free": true,
> "size": 2
> }
> ]
> },
> {
> "start": 34,
> "sectors": 2930277101,
> "name": "da0",
> "scheme": "GPT",
> "size": 0,
> "state": "(null)",
> "partitions": [
> {
> "start": 34,
> "sectors": 32734,
> "free": true,
> "size": 0
> },
> {
> "start": 32768,
> "sectors": 501760,
> "index": 1,
> "name": "da0p1",
> "type": "efi",
> "label": "PBaseEFI",
> "rawtype": "c12a7328-f81f-11d2-ba4b-00a0c93ec93b",
> "size": 541854500
> },
> {
> "start": 534528,
> "sectors": 20971520,
> "index": 2,
> "name": "da0p2",
> "type": "freebsd-swap",
> "label": "PBaseSwp10",
> "rawtype": "516e7cb5-6ecf-11d6-8ff8-00022d09712b",
> "size": 541854500
> },
> {
> "start": 21506048,
> "sectors": 29360128,
> "index": 3,
> "name": "da0p3",
> "type": "freebsd-swap",
> "label": "PBaseSwp14",
> "rawtype": "516e7cb5-6ecf-11d6-8ff8-00022d09712b",
> "size": 541854500
> },
> {
> "start": 50866176,
> "sectors": 33554432,
> "index": 4,
> "name": "da0p4",
> "type": "freebsd-swap",
> "label": "PBaseSwp16",
> "rawtype": "516e7cb5-6ecf-11d6-8ff8-00022d09712b",
> "size": 541854500
> },
> "type": "freebsd-swap",
> "label": "PBaseSwp32",
> "rawtype": "516e7cb5-6ecf-11d6-8ff8-00022d09712b",
> "size": 541854500
> },
> {
> "start": 151529472,
> "sectors": 96468992,
> "index": 6,
> "name": "da0p6",
> "type": "freebsd-swap",
> "label": "PBaseSwp46",
> "rawtype": "516e7cb5-6ecf-11d6-8ff8-00022d09712b",
> "size": 541854500
> },
> {
> "start": 247998464,
> "sectors": 268435456,
> "index": 7,
> "name": "da0p7",
> "type": "freebsd-swap",
> "label": "PBaseSwp128",
> "rawtype": "516e7cb5-6ecf-11d6-8ff8-00022d09712b",
> "size": 541854500
> },
> {
> "start": 516433920,
> "sectors": 7340032,
> "index": 8,
> "name": "da0p8",
> "type": "freebsd-swap",
> "label": "PBaseSwp3p5",
> "rawtype": "516e7cb5-6ecf-11d6-8ff8-00022d09712b",
> "size": 541854500
> },
> {
> "start": 523773952,
> "sectors": 13096960,
> "free": true,
> "size": 0
> },
> {
> "start": 536870912,
> "sectors": 2357198848,
> "index": 9,
> "name": "da0p9",
> "type": "freebsd-ufs",
> "label": "PBaseUFS",
> "rawtype": "516e7cb6-6ecf-11d6-8ff8-00022d09712b",
> "size": 541854500
> },
> {
> "start": 2894069760,
> "sectors": 36207375,
> "free": true,
> "size": 0
> }
> ]
> }Segmentation fault (core dumped)
>
> # gpart show
> => 34 1000215149 nda0 GPT (2)(null)
> 34 2014 - free - (2)
> 2048 532480 1 efi (517M)
> 534528 32768 2 ms-reserved (517M)
> 567296 997287936 3 ms-basic-data (517M)
> 997855232 2359296 4 ms-recovery (517M)
> 1000214528 655 - free - (2)
>
> => 34 2930277101 da0 GPT (0)(null)
> 34 32734 - free - (0)
> 32768 501760 1 efi (517M)
> 534528 20971520 2 freebsd-swap (517M)
> 21506048 29360128 3 freebsd-swap (517M)
> 50866176 33554432 4 freebsd-swap (517M)
> 84420608 67108864 5 freebsd-swap (517M)
> 151529472 96468992 6 freebsd-swap (517M)
> 247998464 268435456 7 freebsd-swap (517M)
> 516433920 7340032 8 freebsd-swap (517M)
> 523773952 13096960 - free - (0)
> 536870912 2357198848 9 freebsd-ufs (517M)
> 2894069760 36207375 - free - (0)
>
> Segmentation fault (core dumped)
>
> From an aarch64 context instead pf the armv7 chroot:
>
> # gpart show
> you have mail
> => 34 1000215149 nda0 GPT (477G)
> 34 2014 - free - (1007K)
> 2048 532480 1 efi (260M)
> 534528 32768 2 ms-reserved (16M)
> 567296 997287936 3 ms-basic-data (476G)
> 997855232 2359296 4 ms-recovery (1G)
> 1000214528 655 - free - (328K)
>
> => 34 2930277101 da0 GPT (1T)
> 34 32734 - free - (16M)
> 32768 501760 1 efi (245M)
> 534528 20971520 2 freebsd-swap (10G)
> 21506048 29360128 3 freebsd-swap (14G)
> 50866176 33554432 4 freebsd-swap (16G)
> 84420608 67108864 5 freebsd-swap (32G)
> 151529472 96468992 6 freebsd-swap (46G)
> 247998464 268435456 7 freebsd-swap (128G)
> 516433920 7340032 8 freebsd-swap (4G)
> 523773952 13096960 - free - (6G)
> 536870912 2357198848 9 freebsd-ufs (1T)
> 2894069760 36207375 - free - (17G)
>
> Here is a "diff -u" of the libxo:JP outputs:
>
> # diff -u gpart_show_armv7_failure_libxo_jp.txt gpart_show_aarch64_good_libxo_jp.txt
> --- gpart_show_armv7_failure_libxo_jp.txt 2025-12-28 10:27:57.985558000 -0800
> +++ gpart_show_aarch64_good_libxo_jp.txt 2025-12-28 10:28:41.456968000 -0800
> @@ -7,14 +7,14 @@
> "sectors": 1000215149,
> "name": "nda0",
> "scheme": "GPT",
> - "size": 2,
> - "state": "(null)",
> + "size": 512110190592,
> + "state": "",
> "partitions": [
> {
> "start": 34,
> "sectors": 2014,
> "free": true,
> - "size": 2
> + "size": 1031168
> },
> {
> "start": 2048,
> @@ -24,7 +24,7 @@
> "type": "efi",
> "label": "EFI system partition",
> "rawtype": "c12a7328-f81f-11d2-ba4b-00a0c93ec93b",
> - "size": 541854500
> + "size": 272629760
> },
> {
> "start": 534528,
> @@ -34,7 +34,7 @@
> "type": "ms-reserved",
> "label": "Microsoft reserved partition",
> "rawtype": "e3c9e316-0b5c-4db8-817d-f92df00215ae",
> - "size": 541854500
> + "size": 16777216
> },
> {
> "start": 567296,
> @@ -44,7 +44,7 @@
> "type": "ms-basic-data",
> "label": "Basic data partition",
> "rawtype": "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7",
> - "size": 541854500
> + "size": 510611423232
> },
> {
> "start": 997855232,
> @@ -54,13 +54,13 @@
> "type": "ms-recovery",
> "label": "(null)",
> "rawtype": "de94bba4-06d1-4d40-a16a-bfd50179d6ac",
> - "size": 541854500
> + "size": 1207959552
> },
> {
> "start": 1000214528,
> "sectors": 655,
> "free": true,
> - "size": 2
> + "size": 335360
> }
> ]
> },
> @@ -69,14 +69,14 @@
> "sectors": 2930277101,
> "name": "da0",
> "scheme": "GPT",
> - "size": 0,
> - "state": "(null)",
> + "size": 1500301910016,
> + "state": "",
> "partitions": [
> {
> "start": 34,
> "sectors": 32734,
> "free": true,
> - "size": 0
> + "size": 16759808
> },
> {
> "start": 32768,
> @@ -86,7 +86,7 @@
> "type": "efi",
> "label": "PBaseEFI",
> "rawtype": "c12a7328-f81f-11d2-ba4b-00a0c93ec93b",
> - "size": 541854500
> + "size": 256901120
> },
> {
> "start": 534528,
> @@ -96,7 +96,7 @@
> "type": "freebsd-swap",
> "label": "PBaseSwp10",
> "rawtype": "516e7cb5-6ecf-11d6-8ff8-00022d09712b",
> - "size": 541854500
> + "size": 10737418240
> },
> {
> "start": 21506048,
> @@ -106,7 +106,7 @@
> "type": "freebsd-swap",
> "label": "PBaseSwp14",
> "rawtype": "516e7cb5-6ecf-11d6-8ff8-00022d09712b",
> - "size": 541854500
> + "size": 15032385536
> },
> {
> "start": 50866176,
> @@ -116,12 +116,17 @@
> "type": "freebsd-swap",
> "label": "PBaseSwp16",
> "rawtype": "516e7cb5-6ecf-11d6-8ff8-00022d09712b",
> - "size": 541854500
> + "size": 17179869184
> },
> + {
> + "start": 84420608,
> + "sectors": 67108864,
> - "size": 541854500
> + "size": 34359738368
> },
> {
> "start": 151529472,
> @@ -131,7 +136,7 @@
> "type": "freebsd-swap",
> "label": "PBaseSwp46",
> "rawtype": "516e7cb5-6ecf-11d6-8ff8-00022d09712b",
> - "size": 541854500
> + "size": 49392123904
> },
> {
> "start": 247998464,
> @@ -141,7 +146,7 @@
> "type": "freebsd-swap",
> "label": "PBaseSwp128",
> "rawtype": "516e7cb5-6ecf-11d6-8ff8-00022d09712b",
> - "size": 541854500
> + "size": 137438953472
> },
> {
> "start": 516433920,
> @@ -151,13 +156,13 @@
> "type": "freebsd-swap",
> "label": "PBaseSwp3p5",
> "rawtype": "516e7cb5-6ecf-11d6-8ff8-00022d09712b",
> - "size": 541854500
> + "size": 3758096384
> },
> {
> "start": 523773952,
> "sectors": 13096960,
> "free": true,
> - "size": 0
> + "size": 6705643520
> },
> {
> "start": 536870912,
> @@ -167,13 +172,16 @@
> "type": "freebsd-ufs",
> "label": "PBaseUFS",
> "rawtype": "516e7cb6-6ecf-11d6-8ff8-00022d09712b",
> - "size": 541854500
> + "size": 1206885810176
> },
> {
> "start": 2894069760,
> "sectors": 36207375,
> "free": true,
> - "size": 0
> + "size": 18538176000
> }
> ]
> - }Segmentation fault (core dumped)
> + }
> + ]
> +}
> +
>
>
>
>
> ===
> Mark Millard
> marklmi at yahoo.com
>
>