RE: unit test for messaging crc32c

2015-06-18 Thread Dałek , Piotr
-Original Message- From: ceph-devel-ow...@vger.kernel.org [mailto:ceph-devel- ow...@vger.kernel.org] On Behalf Of Dan van der Ster Hi all, We've recently experienced a broken router than was corrupting packets in way that the tcp checksums were still valid. There has been some

unit test for messaging crc32c

2015-06-18 Thread Dan van der Ster
Hi all, We've recently experienced a broken router than was corrupting packets in way that the tcp checksums were still valid. There has been some resulting data corruption -- thus far the confirmed corruptions were outside of Ceph communications -- but it has made us want to double check the

Re: unit test for messaging crc32c

2015-06-18 Thread Dan van der Ster
On Thu, Jun 18, 2015 at 9:53 AM, Dałek, Piotr piotr.da...@ts.fujitsu.com wrote: Actually, all it takes is just to disable CRC in configuration on one node (or even daemon). It'll cause to put zeros in CRC fields in all messages sent, triggering CRC check failures cluster-wide (on remaining,