[DRBD-user] Digest mismatch resulting in "split brain" after (!) automatic reconnect

Raoul Bhatia [IPAX] r.bhatia at ipax.at
Mon Feb 21 10:02:30 CET 2011

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


hi,

after a couple of days, i can tell that i do not see the described
problem with
drbd 8.3.7 and kernel 2.6.32-bpo.5-amd64
(backports from squeeze to debian lenny)

> root at c02n01 ~ # cat /proc/drbd
> version: 8.3.7 (api:88/proto:86-91)
> srcversion: EE47D8BF18AC166BE219757


taking a closer look, i also do not see the original error message
anymore: (Digest mismatch, buffer modified by upper layers during write:
0s +4096)


instead, i now see dmesg like:
> [197080.750826] block drbd1: Digest integrity check FAILED.
> [197080.750871] block drbd1: error receiving Data, l: 4136!
> [197080.750905] block drbd1: peer( Primary -> Unknown ) conn( Connected -> ProtocolError ) pdsk( UpToDate -> DUnknown ) 
> [197080.750977] block drbd1: asender terminated

however, the devices correctly get back in sync.

i'll additionally run a manual verify later on and will report back.

lars: were you able to extract the logfiles from my original post?

cheers,
raoul
-- 
____________________________________________________________________
DI (FH) Raoul Bhatia M.Sc.          email.          r.bhatia at ipax.at
Technischer Leiter

IPAX - Aloy Bhatia Hava OG          web.          http://www.ipax.at
Barawitzkagasse 10/2/2/11           email.            office at ipax.at
1190 Wien                           tel.               +43 1 3670030
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