[Bug 612292] [NEW] Wrong timestamps on FAT32 partitions

[Yiannis Dondos]

Public bug reported:

When I mount a FAT32 partition, many files appear to have wrong
timestamps. Specifically, during the winter months (Standard Time) all
files modified in summer appear having their timestamps shifted by +1
hour. During the summer months (when Daylight Savings is in effect)
these files have correct timestamps, but all the winter files have their
timestamps shifted by -1 hour!

When observing the same files under WinXP or Win98, timestamps always
appear the same.

The VFAT driver of Linux should not modify the timestamps, depending on
whether DST is in effect or not. The driver should respect the
timestamps of the FAT32 partition. FAT32 stores timestamps according to
the local wall-clock time, not UTC, so there is absolutely no need for
conversions.

This problem causes rsync to copy hundreds of files from FAT32 to EXT3
partitions, twice a year, without any reason.

Thank you for your precious time!

ProblemType: Bug
Architecture: i386
CurrentDmesg:
 [   30.652222] r8169: eth0: link up
 [   30.652227] r8169: eth0: link up
 [   41.160007] eth0: no IPv6 routers present
DistroRelease: Ubuntu 9.04
HibernationDevice: RESUME=UUID=3cb64f18-eadd-4088-a233-e77650fbcce5
MachineType: MICRO-STAR INTERNATIONAL CO.,LTD MS-7519
NonfreeKernelModules: nvidia
Package: linux-image-2.6.28-19-generic 2.6.28-19.61
ProcCmdLine: root=UUID=5220bc1b-b6d8-4b61-a6cc-bb5cd4609375 ro quiet splash vga=794
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.28-19.61-generic
SourcePackage: linux

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: fat32 timestamps vfat

-- 
Wrong timestamps on FAT32 partitions
https://bugs.launchpad.net/bugs/612292
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