Package: linux-image-2.6.24-etchnhalf.1-486
Version: ?
Hello,
I have an extra-ordinary problem or perhaps an Kernel bug:
My Server:
* Debian Etch (Kernel: Etch-n-half), Samba 3.0.24
* 500gb harddisk with a system and a data partition. Both are crypted
with Luks (cipher:serpent-cbc-essiv:sha256)
* Raid 5 crypted with Luks (cipher: serpent-cbc-essiv:sha256)
* All partitions have the ext3 filesystem
Client1: Notebook (Windows XP and Fedora)
Client2: Desktop (Fedora)
I did all tests from both clients
My problem:
I tried to copy RAW pictures (*.cr2 files) from a client to the raid5
partition with the following 4 different ways.
1. I exported the raid partition with samba and copied the pictures with
Windows XP and the Windows Explorer
2. I copied the pictures through an smb-mount with Fedora with the
cp-command
3. I copied the pictures with the scp-command (first initiiated from
the client and then from the server)
4. I copied the pictures with the rsync-command (first initiiated from
the client and then from the server)
I checked the files after I had copied them with md5sum and I saw that
the values where different to the values of the original files.
The pictures where broken. They had lila stribes and where cutted in the
half.
I tried the same 4 methods and copied the pictures on the 500gb data
partition and there where no failures or md5sum differences.
Then I copied the pictures in an ssh shell with an normal cp-command
from the local-partition to the raid5-partition. The md5sum values where
the same, so this worked well.
So in my opinion the problem has to do with the crypted raid5.
I tried to reproduce this failures with other files but i had this
problem only with RAW (*.cr2 Canon) picture files.
I tried to repair my system with these 3 Methods:
1. fsck.ext3 -y /dev/mapper/md0_crypt
2. fsck.ext3 -c -p /dev/mapper/md0_crypt
3. server rebooted a few times
I couldn't find out any failure messages in the log-files or at the
booting.
After many hours I found this out:
With Kernel 2.6.24-etchnhalf.1-686, Kernel 2.6.24-etchnhalf.1-486 and
Kernel 2.6.26-bpo.1-486 I could reproduce my Image-copy-problem.
As I booted the older Kernel 2.6.18-6-486 I where able to copy the
pictures with any of the methods above and the md5sum values where OK.
Because of this I think its an Kernel problem.
I absolutly don't know what additional information I should post with
this E-Mail, please write me what I should add or where I should post
the extra-information.
Sorry if I addressed this E-Mail wrong, I don't know where to go with
this problem/bug. With bug-buddy I weren't able to make a Bug-Report.
Nice regards
Daniel
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Server Systeminformation :
Debian Etch with different Kernels:
2.6.24-etchnhalf.1-686, Kernel 2.6.24-etchnhalf.1-486, Kernel
2.6.26-bpo.1-486, Kernel 2.6.18-6-486
Kernel 2.6.18-6-486 installed with the Installation-setup from the
debian stable cd.
the others with apt-get install from the source:
deb http://www.backports.org/debian etch-backports main contrib non-free
# ls -l /lib/libc.so.6
/lib/libc.so.6 - libc-2.3.6.so
# lspci -v
00:00.0 Host bridge: nVidia Corporation nForce2 AGP (different version?)
(rev c1)
Subsystem: ASUSTeK Computer Inc. Unknown device 80ac
Flags: bus master, 66MHz, fast devsel, latency 0
Memory at d000 (32-bit, prefetchable) [size=128M]
Capabilities: [40] AGP version 3.0
Capabilities: [60] HyperTransport: Host or Secondary Interface
00:00.1 RAM memory: nVidia Corporation nForce2 Memory Controller 0 (rev
c1)
Subsystem: nVidia Corporation Unknown device 0c17
Flags: 66MHz, fast devsel
00:00.2 RAM memory: nVidia Corporation nForce2 Memory Controller 4 (rev
c1)
Subsystem: nVidia Corporation Unknown device 0c17
Flags: 66MHz, fast devsel
00:00.3 RAM memory: nVidia Corporation nForce2 Memory Controller 3 (rev
c1)
Subsystem: nVidia Corporation Unknown device 0c17
Flags: 66MHz, fast devsel
00:00.4 RAM memory: nVidia Corporation nForce2 Memory Controller 2 (rev
c1)
Subsystem: nVidia Corporation Unknown device 0c17
Flags: 66MHz, fast devsel
00:00.5 RAM memory: nVidia Corporation nForce2 Memory Controller 5 (rev
c1)
Subsystem: nVidia Corporation Unknown device 0c17
Flags: 66MHz, fast devsel
00:01.0 ISA bridge: nVidia Corporation nForce2 ISA Bridge (rev a4)
Subsystem: ASUSTeK Computer Inc. A7N8X Mainboard
Flags: bus master, 66MHz, fast devsel, latency 0
Capabilities: [48] HyperTransport: Slave or Primary Interface
00:01.1 SMBus: nVidia Corporation nForce2 SMBus (MCP) (rev a2)
Subsystem: ASUSTeK Computer Inc. Unknown device 0c11
Flags: 66MHz, fast devsel, IRQ 255
I/O ports at c400 [size=32]
Capabilities: [44] Power
