GNU bug report logs - #31977
clone tests fail on CentOS 7

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From: Paul Garlick <pgarlick <at> tourbillion-technology.com>
To: zimoun <zimon.toutoune <at> gmail.com>
Cc: 31977 <at> debbugs.gnu.org
Subject: bug#31977: clone tests fail on CentOS 7
Date: Wed, 02 Dec 2020 18:08:18 +0000

Hi Simon,

On Tue, 2020-12-01 at 19:12 +0100, zimoun wrote:
> This old bug #31977 is about an issue on your CentOS 7 machine.  Is
> it still relevant?

Yes, this bug still exists.

However, I have just tested a fix:

--- a/gnu/build/linux-container.scm
+++ b/gnu/build/linux-container.scm
@@ -44,7 +44,7 @@
   (let ((userns-file "/proc/sys/kernel/unprivileged_userns_clone"))
     (if (file-exists? userns-file)
         (eqv? #\1 (call-with-input-file userns-file read-char))
-        #t)))
+        #f)))
 
 (define (setgroups-supported?)
   "Return #t if the setgroups proc file, introduced in Linux-libre
3.19,

This ensures that tests are skipped if user namespaces are not enabled
for unprivileged users.

Best regards,

Paul.

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