GNU logs - #59616, boring messages

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Subject: bug#59616: Texinfo 6.7 test hangs on i586-gnu (GNU/Hurd)
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From: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@HIDDEN>
Date: Sat, 26 Nov 2022 19:22:59 +0100
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The =E2=80=98t/malformed-split.sh=E2=80=99 test of Texinfo 6.7 hangs on GNU=
/Hurd (in a
childhurd) as of commit 78f03567f44f704dfbc03cb64368aa42a01e78ad.

The test invokes its =E2=80=98pseudotty=E2=80=99 program, which creates a
pseudo-terminal using =E2=80=98posix=C2=A0openpt=E2=80=99.  That call fails=
 when not running
as root in a childhurd:

--8<---------------cut here---------------start------------->8---
task109(pid14826)-> 4205 (227424 0 0);
  75<--117(pid14826)->io_write_request ("./pseudotty: " -1)./pseudotty:  =
=3D 0 13
  75<--117(pid14826)->io_write_request ("getting pty master fd" -1)getting =
pty master fd =3D 0 21
  75<--117(pid14826)->io_write_request ("\n" -1)
 =3D 0 1
task109(pid14826)-> 4205 (227424 0 0);
task109(pid14826)-> 4205 (227424 0 0);
  86<--120(pid14826)->dir_lookup ("dev/ptyp0" 3 0) =3D 0x4000000d (Permissi=
on denied)=20
  86<--120(pid14826)->dir_lookup ("dev/ptyp1" 3 0) =3D 0x40000010 (Device o=
r resource busy)=20
  86<--120(pid14826)->dir_lookup ("dev/ptyp2" 3 0) =3D 0x4000000d (Permissi=
on denied)=20
  86<--120(pid14826)->dir_lookup ("dev/ptyp3" 3 0) =3D 0x40000002 (No such =
file or directory)=20
task109(pid14826)-> 4205 (227424 0 0);
task109(pid14826)-> 4205 (227424 0 0);
  118<--122(pid14826)->proc_mark_exit_request (256 0) =3D 0=20
task109(pid14826)-> 4205 (227424 0 0);
task109(pid14826)-> 2008 () =3D 0=20
Child 14826 exited with 1
--8<---------------cut here---------------end--------------->8---

The childhurd only has this:

--8<---------------cut here---------------start------------->8---
ludo@childhurd /tmp/guix-build-texinfo-6.7.drv-0/texinfo-6.7/info$ ls -l /d=
ev/ptyp*
crw--w---- 1 root tty  0, 0 Nov 26 16:05 /dev/ptyp0
crw--w---- 1 ludo tty  0, 0 Nov 26 16:05 /dev/ptyp1
crw------- 1 root root 0, 0 Nov 26 16:05 /dev/ptyp2
--8<---------------cut here---------------end--------------->8---

Ludo=E2=80=99.

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From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@HIDDEN>
Subject: bug#59616: Acknowledgement (Texinfo 6.7 test hangs on i586-gnu
 (GNU/Hurd))
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Date: Sat, 26 Nov 2022 18:24:01 +0000

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Message sent to bug-guix@HIDDEN:

Subject: bug#59616: Texinfo 6.7 test hangs on i586-gnu (GNU/Hurd)
Resent-From: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@HIDDEN>
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From: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@HIDDEN>
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Date: Sun, 27 Nov 2022 23:34:21 +0100
In-Reply-To: <87fse560e4.fsf@HIDDEN> ("Ludovic =?UTF-8?Q?Court=C3=A8s?="'s message of "Sat, 26 Nov 2022 19:22:59 +0100")
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Hi,

Ludovic Court=C3=A8s <ludo@HIDDEN> skribis:

> The childhurd only has this:
>
> ludo@childhurd /tmp/guix-build-texinfo-6.7.drv-0/texinfo-6.7/info$ ls -l =
/dev/ptyp*
> crw--w---- 1 root tty  0, 0 Nov 26 16:05 /dev/ptyp0
> crw--w---- 1 ludo tty  0, 0 Nov 26 16:05 /dev/ptyp1
> crw------- 1 root root 0, 0 Nov 26 16:05 /dev/ptyp2

Part of the solution is to create more of them in hurd-boot.scm.

But there=E2=80=99s a second problem: we need to build glibc=E2=80=99s =E2=
=80=98pt_chown=E2=80=99 setuid
program (with =E2=80=98--enable-pt_chown=E2=80=99) so that =E2=80=98grantpt=
=E2=80=99 can change the
owner of /dev/ttyp*.

At least that=E2=80=99s how it=E2=80=99s done on Debian GNU/Hurd, but I=E2=
=80=99m surprised
/hurd/term (for pty-slave) doesn=E2=80=99t just return the right UID on
=E2=80=98io_stat=E2=80=99.

Ludo=E2=80=99.

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retitle 59616 [Hurd] glibc lacks 'pt_chown' setuid program
quit

Last modified: Wed, 30 Nov 2022 09:15:01 UTC

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