[DRBD-user] deadlock? NFS export DRBD on loop device on tmpfs

Lars Ellenberg Lars.Ellenberg at linbit.com
Thu Aug 4 07:36:19 CEST 2005

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

/ 2005-08-04 04:04:59 +0900
\ HIROSE, Masaaki:
> Hello,
> I want memory storage NFS server, so using NFS server that export XFS
> on DRBD on loop device on tmpfs.
> This system looks like working well, but sometimes load average
> increase too high (up to 20) suddenly and system is hung up.
> [question]
> 1 Someone (on Internet) say that DRBD on loop device cause
>   deadlock. Is it true?


> 2 What mean "top of loop device" on DRBD wiki page? loop block device?
>   or network loop device?
>     DataRedundancyByDrbd / Some Do's and Don'ts
>     <URL:http://wiki.linux-ha.org/DataRedundancyByDrbd#head-25da1eb596fac86b9b39073f3a9566007cc6a505>

from the context, it should be clear that loop block dev is meant.

> 3 Does DRBD work well on loop device on tmpfs?


> Is there a possibility of deadlock or serious problem?


: Lars Ellenberg                                  Tel +43-1-8178292-0  :
: LINBIT Information Technologies GmbH            Fax +43-1-8178292-82 :
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