buildworld: lib/libc: install: short write to libc.so.7.debug: [_libinstall] Error code 71

[Graham Perrin]

On 16/11/2020 09:27, Graham Perrin wrote:
> Attempting to build r367615 on Friday 13th:
>
> …
>
> ===> lib/libprocstat/zfs (install)
> install -U  -C -o root -g wheel -m 444 
> /usr/src/lib/libprocstat/libprocstat.h 
> /usr/obj/usr/src/amd64.amd64/tmp/usr/include/
> ===> lib/libc (obj,all,install)
> install -U  -C -o root -g wheel -m 444   libc.a 
> /usr/obj/usr/src/amd64.amd64/tmp/usr/lib/
> install -U  -s -o root -g wheel -m 444   -S  libc.so.7 
> /usr/obj/usr/src/amd64.amd64/tmp/lib/
> install -U  -o root -g wheel -m 444    libc.so.7.debug 
> /usr/obj/usr/src/amd64.amd64/tmp/usr/lib/debug/lib/
> install: short write to 
> /usr/obj/usr/src/amd64.amd64/tmp/usr/lib/debug/lib/libc.so.7.debug: 
> 393216 bytes written, 7462472 bytes asked to write
> *** [_libinstall] Error code 71
>
> make[4]: stopped in /usr/src/lib/libc
> 1 error
>
> make[4]: stopped in /usr/src/lib/libc
> root at mowa219-gjp4-8570p:/usr/src #

The same problem – short write to 
/usr/obj/usr/src/amd64.amd64/tmp/usr/lib/debug/lib/libc.so.7.debug – 
when attempting buildworld of r367847.

If it's relevant: I'm using r367081 for these attempts.