Re: t8020-last-modified.sh failure on s390x (Re: [PATCH v4] last-modified: implement faster algorithm)

From: Anders Kaseorg <andersk@mit.edu>
Date: Nov 19, 2025, 20:06 UTC
Message-ID: <ceacc47b-9d29-4e32-9d83-6bd68279c83c@mit.edu>
In-Reply-To: <3b24b6a3-61cc-4b9a-a823-f1e58fd9919b@app.fastmail.com>

On 11/19/25 05:49, Kristoffer Haugsbakk wrote:

> On Wed, Nov 19, 2025, at 12:34, Anders Kaseorg wrote: >> t8020-last-modified.sh is broken on the s390x platform in v2.52.0.

 >> Bisection implicates commit >> 
2a04e8c293766a4976ceceb4c663dd2963e0339e “last-modified: implement >> 
faster algorithm” [1]. > > Does `./t8020-last-modified.sh --verbose` 
give any interesting > output?
I quoted that output in my previous message. The failures in subtests 16 
and 19 come with these diffs:

--- expect 2025-11-19 11:28:57.966106204 +0000 +++ actual 2025-11-19 11:28:58.110112543 +0000

@@ -1,2 +1,2 @@
+ac29b6e974b49803f1c6ec5a705d1bf7dbfa7d2f m1.t
  m2 m2.t
-m1 m1.t

[…]

--- expect    2025-11-19 11:29:03.492349022 +0000
+++ actual    2025-11-19 11:29:03.648355864 +0000
@@ -1,2 +1,2 @@
-b5 file2
-b2 file
+da1857e0652b6f264c0038d684ddecddc273e506 file2
+da1857e0652b6f264c0038d684ddecddc273e506 file

Anders