[Pkg-vsquare-devel] Bug#670622: fuseext2: "No such file or directory" error on some file, sometimes

[Jonathan ILIAS-PILLET]

Package: fuseext2
Version: 0.3-1
Severity: important
Tags: squeeze

Context : I use fuseext2 to export a system backup as non root user via rsync.

The ext2 file system is located into a regular file. The file system is mounted read only (I use regular mount as root for writing to this virtual disk file).


Rsync reports "no such file or directory" on some files. It seems that these file are big files (more than a few hundred megabytes) but I did'nt checked the whole list.

I did some tests and I figured out that, with "dd", only reads with blocks sizes greater than a power of two bytes raises the bug.

I get success with these arguments :
# dd if=SW-LM3S-8049.exe of=/dev/null bs=511
980300+5 records in
980300+5 records out
500934519 bytes (501 MB) copied, 1.10759 s, 452 MB/s

It fails starting at 512 :
# dd if=SW-LM3S-8049.exe of=/dev/null bs=512
dd: reading `SW-LM3S-8049.exe': No such file or directory
131560+0 records in
131560+0 records out
67358720 bytes (67 MB) copied, 0.146105 s, 461 MB/s

Another time, the limit was 256, this is why I think there is a limit around a power of two.

I cannot publish my backup's private datas, but I can do more tests if you want.

Regards,

-- System Information:
Debian Release: 6.0.4
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.34.6-xxxx-grs-ipv6-64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages fuseext2 depends on:
ii  e2fslibs                1.41.12-4stable1 ext2/ext3/ext4 file system librari
ii  fuse-utils              2.8.4-1.1        Filesystem in USErspace (utilities
ii  libc6                   2.11.3-2         Embedded GNU C Library: Shared lib
ii  libfuse2                2.8.4-1.1        Filesystem in USErspace library

fuseext2 recommends no packages.

fuseext2 suggests no packages.

-- no debconf information