[DRBD-user] DRBD crash with bad network

Lars Ellenberg lars.ellenberg at linbit.com
Thu Apr 1 18:33:25 CEST 2010

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


On Thu, Apr 01, 2010 at 11:49:33AM +0000, Maxence DUNNEWIND wrote:
> > You should have some more interessting logs before that,
> > which should help you in "guessing" what needs to be done.
> Here are the previous lines :
> 
> Mar 30 00:52:48 z2-6 kernel: [1685605.585338] block drbd0: Handshake successful: Agreed network protocol version 91
> Mar 30 00:52:48 z2-6 kernel: [1685605.585905] block drbd0: Peer authenticated using 16 bytes of 'md5' HMAC
> Mar 30 00:52:48 z2-6 kernel: [1685605.585910] block drbd0: conn( WFConnection -> WFReportParams )
> Mar 30 00:52:48 z2-6 kernel: [1685605.586044] block drbd0: Starting asender thread (from drbd0_receiver [21798])
> Mar 30 00:52:48 z2-6 kernel: [1685605.586161] block drbd0: data-integrity-alg: <not-used>
> Mar 30 00:52:48 z2-6 kernel: [1685605.586271] block drbd0: drbd_sync_handshake:
> Mar 30 00:52:48 z2-6 kernel: [1685605.586274] block drbd0: self E905C397ED923FCD:62847A16DA19FB59:31F90405C70D32BA:31BCCA239665E739 bits:202 flags:0
> Mar 30 00:52:48 z2-6 kernel: [1685605.586277] block drbd0: peer 62847A16DA19FB58:0000000000000000:31F90405C70D32BA:31BCCA239665E739 bits:0 flags:0
> Mar 30 00:52:48 z2-6 kernel: [1685605.586279] block drbd0: uuid_compare()=1 by rule 70
> Mar 30 00:52:48 z2-6 kernel: [1685605.586283] block drbd0: peer( Unknown -> Secondary ) conn( WFReportParams -> WFBitMapS ) pdsk( DUnknown -> UpToDate )
> Mar 30 00:52:48 z2-6 kernel: [1685605.588315] CPU 2

hmm. too bad.
I'd expected a "BUG() in blahfoo:line such, this and that"...
or "OOM, allocation of something failed, pages whatnot...."


Maybe you should add some debug options to your kernel,
to get better stack traces, and more debug information?

Of course you could also put in more RAM, and hope for the best ;-)

-- 
: Lars Ellenberg
: LINBIT | Your Way to High Availability
: DRBD/HA support and consulting http://www.linbit.com

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