Re: Reiser4: Format 4.0.1: Meta(data) checksums

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On 09/08/2015 10:46 PM, Jose R R wrote:
Niltze, Ed-

Hello




On Mon, Aug 31, 2015 at 8:21 AM, Edward Shishkin
<edward.shishkin@xxxxxxxxx> wrote:
Hi all,

This is the first release of new software versions of reiser4 kernel
module and reiser4prods, which invoke the builtin mechanism of
tracking compatibility basing on versions of reiser4 plugin library.
More about this can be found here:
https://reiser4.wiki.kernel.org/index.php/Reiser4_development_model

Reiser4progs of the new software release version number 4.0.1
are provided by the package reiser4progs-1.1.0. Please find here:
https://sourceforge.net/projects/reiser4/files/reiser4-utils/reiser4progs

Reiser4 kernel module of the new software release version number
4.0.1 is provided by the patch reiser4-for-4.1.5. Please find here:
https://sourceforge.net/projects/reiser4/files/reiser4-for-linux-4.x/

At mount time disk format version of your partition's superblock will
be upgraded by the kernel, and you will be suggested to complete the
upgrade offline by fsck:

# dmesg | grep [rR]eiser4
Loading Reiser4 (format release: 4.0.1).
reiser4: sda5: found disk format 4.0.0.
reiser4: sda5: upgrading disk format to 4.0.1.
reiser4: sda5: use 'fsck.reiser4 --fix' to complete disk format upgrade.

You may ignore this suggestion and continue to work as usual.
However, I would suggest to find a time and complete the upgrade.

NOTE: after mount in the new kernel you won' t be able to
check your partition by reiser4progs-1.0.9 and older versions, so
please upgrade your reiser4progs BEFORE. Everyone who relies on
liveCDs with reiser4progs-1.0.9, or older versions: be careful!

More about reiser4 (meta)data checksums can be found here:
https://reiser4.wiki.kernel.org/index.php/Reiser4_checksums

Thanks,
Edward.
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I have applied reiser4-for-4.1.5.patch.gz to both pristine
linux-4.1.5.tar.xz from kernel.org and to 4.1.6 from upstream Debian
and both kernels fail to (re)boot into the Reiser4 root partition in
which they were built.

I am using Debian Sid reiser4progs_1.1.0-1_amd64.deb from
https://packages.debian.org/sid/reiser4progs

In both instances, after GRUB boots from the boot partition into the
root Reiser4 partition and message after
fsck.reiser4 /dev/sdaX
[ 3.979349 ] BUG: unable to handle kernel NULL pointer dereference at
0000000000000069


Could you catch the full stack dump at serial console,
or take a pic of this by using camera?

Thanks,
Edward.


[...]
(initramfs prompt) will not boot into its Reiser4 partition

 From another partition I have even tried (using
reiser4progs_1.1.0-1_amd64.deb, too)
fsck.reiser4 --version
fsck.reiser4 1.1.0
Format release: 4.0.1
Copyright (C) 2001-2005 by Hans Reiser, licensing governed by
reiser4progs/COPYING.

fsck.reiser4 --fix /dev/sdaX
and
fsck.reiser4  --build-fs /dev/sdaX

which finished fine. Nevertheless upon rebooting into fsck'ed
partition with the Reiser4 4.0.1 kernel module nothing changes, i.e.,
I get BUG and kernel boot stops at initramfs prompt.


Best Professional Regards.


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