[DRBD-user] Page allocation errors and kernel panics with drbd 8.3.3rc1 and infiniband

Lars Ellenberg lars.ellenberg at linbit.com
Sun Oct 4 22:14:22 CEST 2009

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

On Sun, Oct 04, 2009 at 03:55:44AM -0400, Gennadiy Nerubayev wrote:
> On Tue, Sep 22, 2009 at 5:01 PM, Jason McKay <jmckay at logicworks.net> wrote:
> > On Sep 22, 2009, at 4:34 PM, Lars Ellenberg wrote:
> >
> > > But correcting the tcp_mem setting above
> > > is more likely to fix your symptoms.
> >
> > I suspect it will.  We'll test and follow up.
> >
> Hi guys,
> Unfortunately these are still occurring, even after we've updated to rc3,
> and used the tuning settings from rc3 notes (prior to this % of memory in
> pages were attempted with same results). They are a lot less frequent
> (intervals measured in hours), and have not yet caused a panic, but of
> course the worry is that it may happen regardless. Anything else that we
> could try here to eliminate it completely? Is there any chance that the
> ipoib stack is at fault?

Maybe Vlad knows more?
 From http://www.openfabrics.org/txt/documentation/linux/EWG_meeting_minutes/12_01_08.txt:
1419 	maj 	vlad at mellanox 	Iperf-2.0.4 fails: page allocation failure. order:5
I guess that means https://bugs.openfabrics.org/show_bug.cgi?id=1419
Not much progress on that bug, though.

: Lars Ellenberg                
: LINBIT HA-Solutions GmbH
: DRBD®/HA support and consulting    http://www.linbit.com

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