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Groups > linux.debian.kernel > #93787

Bug#1144613: linux-image-7.1.6+deb14-amd64: ext4 st_mtime and time() inconsistency

From Vincent Lefevre <vincent@vinc17.net>
Newsgroups linux.debian.bugs.dist, linux.debian.kernel
Subject Bug#1144613: linux-image-7.1.6+deb14-amd64: ext4 st_mtime and time() inconsistency
Date 2026-08-19 14:30 +0200
Message-ID <NtNAB-bSXq-3@gated-at.bofh.it> (permalink)
References <NsTI5-bnRg-1@gated-at.bofh.it> <NtN7z-bSDS-1@gated-at.bofh.it> <NsTI5-bnRg-1@gated-at.bofh.it> <NtN7z-bSDS-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

Cross-posted to 2 groups.

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Control: retitle -1 linux-image-7.1.6+deb14-amd64: st_mtime and time() inconsistency

On 2026-08-19 13:48:48 +0200, Vincent Lefevre wrote:
> Here's a simple program to reproduce the issue. On my machine,
> a difference is output many times every second (apparently,
> when the clock is very close to an integer number of seconds).
[...]

This also occurs in /dev/shm (tmpfs).

And I cannot reproduce this issue under Debian 13 (trixie) with
the 6.12.96+deb13-amd64 kernel.

-- 
Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / Pascaline project (LIP, ENS-Lyon)

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Thread

Bug#1144613: linux-image-7.1.6+deb14-amd64: ext4 st_mtime and time() inconsistency Vincent Lefevre <vincent@vinc17.net> - 2026-08-19 14:00 +0200
  Bug#1144613: linux-image-7.1.6+deb14-amd64: ext4 st_mtime and time() inconsistency Vincent Lefevre <vincent@vinc17.net> - 2026-08-19 14:30 +0200
    Processed: Re: linux-image-7.1.6+deb14-amd64: ext4 st_mtime and  time() inconsistency "Debian Bug Tracking System" <owner@bugs.debian.org> - 2026-08-19 14:30 +0200
    Bug#1144613: linux-image-7.1.6+deb14-amd64: ext4 st_mtime and time() inconsistency Salvatore Bonaccorso <carnil@debian.org> - 2026-08-19 16:00 +0200
      Bug#1144613: linux-image-7.1.6+deb14-amd64: ext4 st_mtime and time() inconsistency Vincent Lefevre <vincent@vinc17.net> - 2026-08-19 16:30 +0200
        Bug#1144613: linux-image-7.1.6+deb14-amd64: ext4 st_mtime and time() inconsistency Vincent Lefevre <vincent@vinc17.net> - 2026-08-19 17:20 +0200
          Bug#1144613: linux-image-7.1.6+deb14-amd64: ext4 st_mtime and time() inconsistency Vincent Lefevre <vincent@vinc17.net> - 2026-08-19 19:20 +0200

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