#1138789 FTBFS on loong64: mkswap: error: swap area needs to be at least 160 KiB

Package:
src:util-linux
Source:
src:util-linux
Submitter:
Chris Hofstädtler
Date:
2026-06-08 18:45:01 UTC
Severity:
normal
Tags:
#1138789#5
Date:
2026-06-03 19:58:08 UTC
From:
To:
https://buildd.debian.org/status/fetch.php?pkg=util-linux&arch=loong64&ver=2.42.1-1&stamp=1780514831&file=log

diff-{{{
--- /dev/null	2026-05-29 12:41:25.961759630 +0000
+++ /build/reproducible-path/util-linux-2.42.1/tests/output/mkswap/mkswap-file-existing	2026-06-03 19:26:30.186627085 +0000
@@ -0,0 +1,3 @@
+mkswap failed
+mkswap: error: swap area needs to be at least 160 KiB
+mkswap -F failed on existing file
}}}-diff

 FAILED (mkswap/mkswap-file-existing)
========= script: /build/reproducible-path/util-linux-2.42.1/tests/ts/mkswap/mkswap =================
================= OUTPUT =====================
     1	mkswap failed
     2	mkswap: error: swap area needs to be at least 160 KiB
     3	mkswap -F failed on existing file

Looks like commit 775729884a3945a53df33e0d3ff2ba263b96b59e ,
mainline 6d87ff51568c017a6d08043d554bf0ea8dee5457
#1138789#10
Date:
2026-06-03 20:04:36 UTC
From:
To:
Hi Johannes, Karel,

util-linux 2.42.1 apparently fails its mkswap tests on loong64. Given
it fails in mkswap/mkswap-file-existing, I suspect this is "caused"
by commit 775729884a3945a53df33e0d3ff2ba263b96b59e /
6d87ff51568c017a6d08043d554bf0ea8dee5457.

Could you take a look please?


Full build log at:

https://buildd.debian.org/status/fetch.php?pkg=util-linux&arch=loong64&ver=2.42.1-1&stamp=1780514831&file=log

Many thanks!
Chris
#1138789#13
Date:
2026-06-04 11:44:47 UTC
From:
To:
Hello,

Bug #1138789 in util-linux reported by you has been fixed in the
Git repository and is awaiting an upload. You can see the commit
message below and you can check the diff of the fix at:

https://salsa.debian.org/debian/util-linux/-/commit/311977259b68a5be9b455c3a7bd0af14a95f5f2d
------------------------------------------------------------------------
Fix FTBFS on systems with non-4K pagesizes

Closes: #1138789
------------------------------------------------------------------------

(this message was generated automatically)
-- 
Greetings

https://bugs.debian.org/1138789
#1138789#20
Date:
2026-06-04 11:48:59 UTC
From:
To:
We believe that the bug you reported is fixed in the latest version of
util-linux, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1138789@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Chris Hofstaedtler <zeha@debian.org> (supplier of updated util-linux package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Thu, 04 Jun 2026 13:31:17 +0200
Source: util-linux
Architecture: source
Version: 2.42.1-2
Distribution: unstable
Urgency: medium
Maintainer: Chris Hofstaedtler <zeha@debian.org>
Changed-By: Chris Hofstaedtler <zeha@debian.org>
Closes: 1138789
Changes:
 util-linux (2.42.1-2) unstable; urgency=medium
 .
   * Fix FTBFS on systems with non-4K pagesizes (Closes: #1138789)
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#1138789#25
Date:
2026-06-04 12:20:56 UTC
From:
To:
Some systems run with kernels using page sizes other than 4K. The
file-existing test used a file of 10 pages at 4K. This would fail on
kernels with higher page sizes (here 16K) like this:

   mkswap: error: swap area needs to be at least 160 KiB

Use 10 * 64K pages, hopefully allowing all kernels with 4K, 16K, 64K
pages to pass the tests.

Noticed on Debian loong64 kernel 7.0.9+deb14-loong64, and on
sparc64 and alpha.

Bug: https://bugs.debian.org/1138789
Fixes: 775729884a3945a53df33e0d3ff2ba263b96b59e
Signed-off-by: Chris Hofstaedtler <zeha@debian.org>
---
  tests/ts/mkswap/mkswap | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/ts/mkswap/mkswap b/tests/ts/mkswap/mkswap
index 19111971c..fa7e6b462 100755
--- a/tests/ts/mkswap/mkswap
+++ b/tests/ts/mkswap/mkswap
@@ -105,11 +105,11 @@ ts_init_subtest file-existing
  outimg="$TS_OUTDIR/existing.img"
  rm -f "$outimg"

-"$TS_CMD_MKSWAP" -q -U "$UUID" -F -s $((4096 * 10)) "$outimg" \
+"$TS_CMD_MKSWAP" -q -U "$UUID" -F -s $((65536 * 10)) "$outimg" \
      >> "$TS_OUTPUT" 2>/dev/null \
      || ts_log "mkswap failed"

-"$TS_CMD_MKSWAP" -q -U "$UUID" -F -s $((4096 * 10)) "$outimg" \
+"$TS_CMD_MKSWAP" -q -U "$UUID" -F -s $((65536 * 10)) "$outimg" \
      >> "$TS_OUTPUT" 2>&1 \
      || ts_log "mkswap -F failed on existing file"
#1138789#30
Date:
2026-06-08 11:00:58 UTC
From:
To:
It was already fixed by commit c5da6dcfe, which explicitly forces the
page size to 4096 rather than extending the file size.

    Karel
#1138789#35
Date:
2026-06-08 13:35:22 UTC
From:
To:
We believe that the bug you reported is fixed in the latest version of
util-linux, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1138789@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Chris Hofstaedtler <zeha@debian.org> (supplier of updated util-linux package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Mon, 08 Jun 2026 15:05:17 +0200
Source: util-linux
Architecture: source
Version: 2.42.1-3
Distribution: unstable
Urgency: medium
Maintainer: Chris Hofstaedtler <zeha@debian.org>
Changed-By: Chris Hofstaedtler <zeha@debian.org>
Closes: 1138789
Changes:
 util-linux (2.42.1-3) unstable; urgency=medium
 .
   * Use upstream patch to fix FTBFS on systems with non-4K pagesizes
     (Closes: #1138789)
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#1138789#40
Date:
2026-06-08 18:44:03 UTC
From:
To:
Ah, thank you! I've pulled this commit into our build.

Best,
Chris