Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Thanks for the feedback! I added Lars en florians comments to the elrepo bug report, it should be easily fixed I suppose. Maurits -----Oorspronkelijk bericht----- Van: drbd-user-bounces at lists.linbit.com [mailto:drbd-user-bounces at lists.linbit.com] Namens Florian Haas Verzonden: donderdag 5 april 2012 16:32 Aan: drbd-user at lists.linbit.com Onderwerp: Re: [DRBD-user] block: BARRIER is deprecated, use FLUSH/FUA instead On Thu, Apr 5, 2012 at 3:30 PM, Lars Ellenberg <lars.ellenberg at linbit.com> wrote: > On Thu, Apr 05, 2012 at 08:56:52AM +0000, Maurits van de Lande wrote: >> >Well you've mentioned here you're already working with Linbit, so >> >what did they say about this? Surely the same issue would appear >on >> >vmhost6a and vmhost6b whose configurations you've previously posted >> >here >> Yes the same issue occurs on all vmhostxx clusters. Linbit was >> looking at the performance issues, they didn't check that bug report. >> Maybe I should ask Linbit again. When I posted the bug at elrepo they >> said they think it is a harmless warning. >> >> Hopefully we get a reply from Linbit regarding this subject. > > It is a harmless warning. > The impact is neither barriers nor flush/fua will be available. > > It is caused by RHEL kernel being "kABI compatible" in theory, but in > fact changed the semantics of bio bitfields completely, between 6.0 > and 6.1. OK. Then the situation is exactly the same as I explained here months ago: http://lists.linbit.com/pipermail/drbd-user/2011-August/016628.html And funnily enough, that same email was also quoted here: http://elrepo.org/bugs/view.php?id=210 > Packages built by Linbit do not trigger this warning, and work > correctly, afaik. > > I can't say what the centos packages do wrong, but I assume they have > been built against 6.0 kernel headers, and now loaded into a 6.1 or > later binary kernel. > > I suggest to rebuild against the correct headers. That, too, is in http://elrepo.org/bugs/view.php?id=210 So it seems we need a cluebat for the ELrepo folks. Or is this something that's really easy to get wrong during a build? Florian _______________________________________________ drbd-user mailing list drbd-user at lists.linbit.com http://lists.linbit.com/mailman/listinfo/drbd-user