[Pkg-iscsi-maintainers] Bug#603990: open-iscsi: reconnecting to targets fails with kernel >2.6.32 due to sysfs changes

[Ritesh Raj Sarraf]

Thanks Jim. I'll sometime soon prepare the new upstream version for
upload to experimental.

On 11/19/2010 10:28 AM, Jim Paris wrote:
> Package: open-iscsi
> Version: 2.0.871.3-2squeeze1.1
> Severity: normal
> Tags: patch
>
> Hi,
>
> I have a diskless system with root on iSCSI.  After upgrading my
> kernel from 2.6.32-5-amd64 to 2.6.36-trunk-amd64, the system no longer
> boots because the connection is lost when /etc/init.d/open-iscsi is
> called.  Running iscsid manually reports that the authentication was
> rejected, but I'm not using any authentication.
>
> I did a bisection on the kernel and found that the culprit is:
>
>   commit 0f4f81dce93774a447da3ceb98cce193ef84a3fa
>   Author: André Goddard Rosa <andre.goddard at gmail.com>
>   Date:   Mon Dec 14 18:00:55 2009 -0800
>   
>       vsprintf: factorize "(null)" string
>   <snip>
>       Change "<NULL>" to "(null)", unifying 3 equal strings.
>
> What is happening here is that the initramfs successfully uses
> iscsistart to connect to the target.  Later, iscsid tries to reconnect
> using the parameters it finds in sysfs files, like:
>   /sys/class/iscsi_session/session1/username
>   /sys/class/iscsi_session/session1/password
> Before this kernel change, those files contained "<NULL>", but now they
> contain "(null)", and iscsid doesn't handle the latter correctly.
>
> Turns out this has already been fixed upstream in open-iscsi (I should
> have tried that first!):
>   http://git.kernel.org/?p=linux/kernel/git/mnc/open-iscsi.git;a=commitdiff;h=f0b670c016c85c882bb0583eaef8ea2f7147d4af
>
> so all that's really necessary is to either use that patch or upgrade
> the whole package to the recently-released 2.0-872.
>
> -jim
>
>
>
> -- System Information:
> Debian Release: 5.0.2
>   APT prefers testing
>   APT policy: (300, 'testing'), (200, 'stable'), (50, 'unstable'), (1, 'experimental')
> Architecture: amd64 (x86_64)
>
> Kernel: Linux 2.6.36-trunk-amd64 (SMP w/2 CPU cores)
> Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/bash
>
> Versions of packages open-iscsi depends on:
> ii  libc6                         2.11.2-2   Embedded GNU C Library: Shared lib
> ii  udev                          164-2      /dev/ and hotplug management daemo
>
> open-iscsi recommends no packages.
>
> open-iscsi suggests no packages.
>
> -- no debconf information
>
>
>


-- 
Ritesh Raj Sarraf
RESEARCHUT - http://www.researchut.com
"Necessity is the mother of invention."


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