[DRBD-user] drbd consistently crashes during WFConnect

[Langley, Alex]

Thanks to Florian, who pointed out the typo in our config file!
 
All us db guys looking at this frequently call this software drdb, and type it that way at times.  An unfortunate coincidence (for us at least).
 
It's too bad that drbd crashes on this instead of politely pointing out (like Florian did), that device /dev/drdb0 does not exist.  I would say that is a bug.
 
THANKS AGAIN FLORIAN!  It's working now.
 
Alex

________________________________

From: drbd-user-bounces at lists.linbit.com on behalf of Lars Ellenberg
Sent: Wed 3/5/2008 2:50 AM
To: drbd-user at lists.linbit.com
Subject: Re: [DRBD-user] drbd consistently crashes during WFConnect



On Tue, Mar 04, 2008 at 02:02:16PM -0600, Langley, Alex wrote:
> Setup:
>
> Both servers HP DL380 G3, Fedora Core 6, Kernel 2.6.22
>
> /etc/drbd.conf
>
> global {
>     usage-count no;
> }
>
> common {
>   syncer { rate 1M; }
> }
>
> resource drive2 {
>         protocol C;
>         startup {
>                 wfc-timeout 60;
>                 degr-wfc-timeout 60;
>         }
>         disk {
>                 on-io-error detach;
>         }
>         net {
>                 max-buffers 2048;
>                 ko-count 4;
>                 after-sb-0pri disconnect;
>                 rr-conflict disconnect;
>         #        #cram-hmac-alg sha1;
>         #        #shared-secret "WorldWarIFlyingAce";
>         }
>         on wamperf1 { #PRIMARY
>                 device  /dev/drdb0;
>                 disk    /dev/cciss/c0d0p5;
>                 address 10.12.138.57:7791;
>                 meta-disk /dev/cciss/c0d0p6[0];
>         }
>         on wamperf2 { #SECONDARY
>                 device  /dev/drbd0;
>                 disk    /dev/cciss/c0d0p5;
>                 address 10.12.138.62:7791;
>                 meta-disk /dev/cciss/c0d0p6[0];
>         }
> }
> The following shows up on the console of the primary a few seconds after
> bringing drbd up and making it primary
>
> drbd: no version for "struct_module" found: kernel tainted.
> drbd0: No usable activity log found.
> drbd0: Barriers not supported on meta data device - disabling
> BUG: unable to handle kernel NULL pointer dereference at virtual address
> 00000032
>  printing eip:
> c062e172
> *pde = 3d5a1067
> Oops: 0002 [#1]
> SMP
> last sysfs file: /block/drbd0/range
> Modules linked in: drbd(F)(U) ipv6 autofs4 sunrpc dm_mirror dm_mod video

I dare say you forced a module into your kernel that was not built for
this particular kernel. don't do that, or bad things will happen.

go, start over, build again, this time hopefully one matching your kernel.

--
: Lars Ellenberg                           http://www.linbit.com <http://www.linbit.com/>  :
: DRBD/HA support and consulting             sales at linbit.com :
: LINBIT Information Technologies GmbH      Tel +43-1-8178292-0  :
: Vivenotgasse 48, A-1120 Vienna/Europe     Fax +43-1-8178292-82 :
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