bug#24053: guix download file:// fails with a ~2 GB file on i686

[Mark H Weaver]

Mark H Weaver <address@hidden> writes:

> On my i686 GuixSD machine, the following command consistently fails:
>
>   address@hidden:~$ guix download 
> file:///home/mhw/texlive-20160523b-texmf.tar.xz
>   guix download: error: sendfile: Broken pipe
>
> The file is 2071190200 bytes, which is about 73 MiB less than 2 GiB.
> I have 2 GiB of RAM and 4 GiB of swap.
>
> My guix client is v0.10.0-1899-g0f971a0.  My guix-daemon is 0.10.0.

I tried adding the same file using 'add-to-store' directly from the
REPL.  'guile' exited with status code 141, without printing an error
message:

--8<---------------cut here---------------start------------->8---
address@hidden:~$ guix/pre-inst-env guile
GNU Guile 2.0.11
Copyright (C) 1995-2014 Free Software Foundation, Inc.

Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'.
This program is free software, and you are welcome to redistribute it
under certain conditions; type `,show c' for details.

Enter `,help' for help.
scheme@(guile-user)> ,use (guix)
scheme@(guile-user)> (define s (open-connection))
scheme@(guile-user)> (add-to-store s "texlive-20160523b-texmf.tar.xz" #f 
"sha256" "texlive-20160523b-texmf.tar.xz")
address@hidden:~$ echo $?
141
address@hidden:~$ ls -l texlive-20160523b-texmf.tar.xz
-rw-r--r-- 1 mhw mhw 2071190200 Jul 20 01:08 texlive-20160523b-texmf.tar.xz
--8<---------------cut here---------------end--------------->8---

       Mark