Bug#547310: linux-image-2.6.30-1-686: df shows wrong numbers while a filesystem is unmounted

["Michal Suchanek <hramrach@centrum.cz>" <michal.suchanek@ruk.cuni.cz>]

Package: linux-image-2.6.30-1-686
Version: 2.6.30-6
Severity: normal


To reproduce mount a (slow) flash card on /mnt

# mount /dev/sde1 /mnt

Copy larger amount of data

# cd /mnt ; tar zxvpf /some_directory/some_archive.tar.gz

Unmount

# cd ; umount /mnt

Now data is being written to the card for some minute(s).

$ df -h

shows same size and occupied space for / and /mnt althouhg the card is
much smaller.


-- Package-specific info:
** Version:
Linux version 2.6.30-1-686 (Debian 2.6.30-6) (waldi@debian.org) (gcc version 4.3.4 (Debian 4.3.4-1) ) #1 SMP Sat Aug 15 19:11:58 UTC 2009

** Command line:
BOOT_IMAGE=/boot/vmlinuz-2.6.30-1-686 root=UUID=9672c75d-b4e9-42ec-9de4-2df6b400479a ro video=efifb fbcon=rotate:1

** Not tainted

** Kernel log:

** Loaded modules:

** PCI devices:



-- System Information:
Debian Release: 5.0.3
  APT prefers stable
  APT policy: (900, 'stable'), (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)

Kernel: Linux 2.6.30-1-686 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages linux-image-2.6.30-1-686 depends on:
ii  debconf [debconf-2.0]         1.5.24     Debian configuration management sy
ii  initramfs-tools [linux-initra 0.92o      tools for generating an initramfs
ii  module-init-tools             3.4-1      tools for managing Linux kernel mo

Versions of packages linux-image-2.6.30-1-686 recommends:
ii  libc6-i686                    2.9-26     GNU C Library: Shared libraries [i

Versions of packages linux-image-2.6.30-1-686 suggests:
ii  grub-efi [grub]         1.96+20080724-16 GRand Unified Bootloader, version 
pn  linux-doc-2.6.30        <none>           (no description available)

-- debconf information excluded