Re: Status update+patches:Re: I managed to build guix natively on Debian GNU/Hurd , what's next?

[Svante Signell]

On Tue, 2019-09-03 at 14:58 +0200, Ricardo Wurmus wrote:
> Hi Svante,
> 
> This looks very much like the tar segfault I encountered when I last
> played with the Hurd port.
> 
> My notes say this:
> 
> --8<---------------cut here---------------start------------->8---
> - tar fails to run when building gnu-make-boot0
> ./pre-inst-env  guix build -e '(@@ (gnu packages commencement) gnu-make-
> boot0))'
> here’s the error:
> building /gnu/store/ybi3cyxqwm55gvwn9i1nczg2ns5ha34q-make-
> 4.2.1.tar.xz.drv...                   
> /hurd/crash: /gnu/store/dqlhjyvg0n8v1kdvwfpliqy46n7kpjqb-bootstrap-binaries-
> 0/bin/tar cvfa /gnu/store/p278mqb3aa0xrkrrw4rg1fxbb19hbdyh-make-4.2.1.tar.xz 
> --mtime=@0 --owner=root --group=root --sort=name make-4.2.1(2316) crashed,
> signal {no:1 1, code:8176, error:2}, exception {1, code:2, subcode:8176}, PCs:
> {0x8089ce7, 0x 815091c}, writing core file.                      
> 
> 
> This works:
> /gnu/store/dqlhjyvg0n8v1kdvwfpliqy46n7kpjqb-bootstrap-binaries-0/bin/tar cvfa
> hello.tar.xz /tmp
> 
> But it segfaults with “--mtime=@0”

I did not look at the console, but found out similar crashes there. How did you
get the output to the client terminal instead of the qemu console (not possible
to cut and paste from that)? I have now tested both the statically built tar,
the native tar downloaded by guix and the native tar: No errors now.

How can I rebuild from scratch to watch the output on the console?