Re: 14.3-RELEASE gpart show output (?.?T) vs. 14.4 and 15.0 and main: why do 14.4 and 15.0 and main have some single significant digit (?T) size figures?

> On Apr 20, 2026, at 1:11 AM, Zhenlei Huang <zlei@FreeBSD.org> wrote:
> 
> 
> 
>> On Apr 19, 2026, at 11:03 PM, Mark Millard <marklmi@yahoo.com> wrote:
>> 
>> 14.3-RELEASE (more useful):
>> 
>> =>        40  1875384928    da1  GPT  (894G)
>> =>        40  2930277095    nda1  GPT  (1.4T)
>> =>        34  2930277101    da0  GPT  (1.4T)
>> =>        34  3907029101    nda0  GPT  (1.8T)
>> =>        34  4000797293    nda3  GPT  (1.9T)
>> 
>> 
>> 14.4-RELEASE and 15.0-RELEASE and main (less useful):
>> 
>> =>        40  1875384928    da1  GPT  (894G)
>> =>        40  2930277095    nda1  GPT  (1T)
>> =>        34  2930277101    da0  GPT  (1T)
>> =>        34  3907029101    nda0  GPT  (2T)
>> =>        34  4000797293    nda3  GPT  (2T)
>> 
> 
> It appears to be caused by 4f809ffec69c (gpart: add libxo support for "show" subcommand + man page updates) .
> 
> Prior to the change the size was formatted to human friendly format by `fmtsize(pp->lg_mediasize))` which in turn calls 
> ```
> humanize_number(buf, sizeof(buf), rawsz, "", HN_AUTOSCALE,
>            HN_B | HN_NOSPACE | HN_DECIMAL);
> ```,
> 
> now it is formatted with 
> ```
> xo_emit("  ({h:size/%jd})\n", (intmax_t)pp->lg_mediasize);
> ```
> 
> It appears that libxo does not handle well with numbers those exceed 10^12, ( 1 Terabyte in this case ).

Try this patch please, not a full fix for all the "size" column,

```
Author: Zhenlei Huang <zlei@FreeBSD.org>
Date:   Mon Apr 20 01:38:21 2026 +0800

    geom_part: Fix the format of size

diff --git a/lib/geom/part/geom_part.c b/lib/geom/part/geom_part.c
index 852eec2d790a..ca3c5f2c27c3 100644
--- a/lib/geom/part/geom_part.c
+++ b/lib/geom/part/geom_part.c
@@ -723,7 +723,7 @@ gpart_show_geom(struct ggeom *gp, const char *element, int show_providers)
                }
                if (idx)
                        xo_emit("]");
-               xo_emit("  ({h:size/%jd})\n", (intmax_t)pp->lg_mediasize);
+               xo_emit("  ({h,hn-decimal:size/%jd})\n", (intmax_t)pp->lg_mediasize);
                xo_close_instance(s);
                first = end + 1;
        }
```

> 
>> 
>> -- 
>> ===
>> Mark Millard
>> marklmi at yahoo.com <http://yahoo.com/>
>> 
>> 
> 
> Best regards,
> Zhenlei

Best regards,
Zhenlei