On Wed, Jul 05, 2017 at 08:06:17AM +0100, Chris Clayton wrote: > I can provide the full traces or any other diagnostics, if they would help. Yes this would definitively help. An strace log would be great so I can make a local reproducer. Thanks, Johannes -- Johannes Thumshirn Storage jthumshirn@xxxxxxx +49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850