[DRBD-user] drbd consistently crashes during WFConnect

Lars Ellenberg lars.ellenberg at linbit.com
Wed Mar 5 09:50:50 CET 2008

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


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 :
: 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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