On Thu, Aug 02, 2007 at 02:00:05AM +0200, Adrian Bunk wrote:
> On Wed, Aug 01, 2007 at 07:02:14PM -0400, Maurice Volaski wrote:
> > First, did you confirm this behavior? Can you please explain that? How
> > could they possibly interact with one another?
>
>
> It's obvious when looking at the source code that both modules you are
> trying to use are buggy, and the sum of the bugs in both modules is the
> drbd breakage you observe.
>
>
> 30% of the guilt go to the drbd developers for doing the following:
>
> #ifdef NETLINK_ROUTE6
> /* pre 2.6.16 */
> err = cn_init();
> if(err) return err;
> #endif
>
> The author wanted to check for pre-2.6.14 when the connector code was
> added to the kernel, not for pre-2.6.16 as the comment implies or
> pre-2.6.13 as the code does.
>
> Or he wanted to check whether it's a recent kernel and the connector
> code is compiled into the kernel.
that is what we wanted to check for. iirc, we first went to test for
the kernel version, unfortunately going just for the kernel version did
not exactly work out for patched vendor kernels...
browsing over the available (to us at that time) kernel trees suggested
that misusing the define of NETLINK_ROUTE6 might just work...
> 70% of the guilt go to the web100 developers for shipping the following
> to their users:
>
> --- linux-2.6-web100/include/linux/netlink.h 19 Jul 2007 17:49:17 -0000 1.1.1.16
> +++ linux-2.6-web100/include/linux/netlink.h 19 Jul 2007 18:11:01 -0000 1.17
> @@ -14,6 +14,7 @@
> #define NETLINK_SELINUX 7 /* SELinux event notifications */
> #define NETLINK_ISCSI 8 /* Open-iSCSI */
> #define NETLINK_AUDIT 9 /* auditing */
> +#define NETLINK_ROUTE6 11 /* af_inet6 route comm channel */
> #define NETLINK_FIB_LOOKUP 10
> #define NETLINK_CONNECTOR 11
> #define NETLINK_NETFILTER 12 /* netfilter subsystem */
>
> That's not only buggy but also not used by web100.
>
>
> cu
> Adrian
thank you very much for looking at this,
--
: Lars Ellenberg Tel +43-1-8178292-0 :
: LINBIT Information Technologies GmbH Fax +43-1-8178292-82 :
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