[DRBD-user] DRBD 8.0.13 SyncTarget crashing with alloc_ee: Allocation of a page failed

Lars Ellenberg lars.ellenberg at linbit.com
Tue Feb 3 11:35:25 CET 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 Tue, Feb 03, 2009 at 10:51:14AM +0100, Peter Luciak wrote:
> Peter Luciak wrote:
>> Hello all,
>>
>> I'm experiencing weird crashes with drbd 8.0.13 when trying to  
>> resynchronize the secondary node. The secondary crashes (without any  
>> oops-es or other information in /var/log/messages) after some random  
>> period of resynchronization (around 20-30%).
>
> I started the resync again and noticed this message in the log on the  
> secondary:
>
> ...
> Feb  3 13:36:56 vwsrv2 kernel: drbd2: Began resync as SyncTarget (will  
> sync 112574976 KB [28143744 bits set]).
> Feb  3 13:36:56 vwsrv2 kernel: drbd2: Writing meta data super block now.
> Feb  3 13:37:20 vwsrv2 kernel: drbd2: local disk flush failed with  
> status -95
>
> So it could boil down to a SCSI / hard drive issue or?

I don't think so.
something in the io stack just does not support barriers/flushes,
and correctly says so (-95 == -EOPNOTSUPP).
DRBD disables its internal use of these, and reissues the request.

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

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