I also see that, but on 4.9.52 and 4.13.3 kernel. I also have some kernel panic, but don't know if it's related (RBD are mapped on Xen hosts). Le jeudi 05 octobre 2017 à 05:53 +0000, Adrian Saul a écrit : > We see the same messages and are similarly on a 4.4 KRBD version that > is affected by this. > > I have seen no impact from it so far that I know about > > > > -----Original Message----- > > From: ceph-users [mailto:ceph-users-bounces@xxxxxxxxxxxxxx] On > > Behalf Of > > Jason Dillaman > > Sent: Thursday, 5 October 2017 5:45 AM > > To: Gregory Farnum <gfarnum@xxxxxxxxxx> > > Cc: ceph-users <ceph-users@xxxxxxxxxxxxxx>; Josy > > <josy@xxxxxxxxxxxxxxxxxxxxx> > > Subject: Re: bad crc/signature errors > > > > Perhaps this is related to a known issue on some 4.4 and later > > kernels [1] > > where the stable write flag was not preserved by the kernel? > > > > [1] http://tracker.ceph.com/issues/19275 > > > > On Wed, Oct 4, 2017 at 2:36 PM, Gregory Farnum <gfarnum@xxxxxxxxxx> > > wrote: > > > That message indicates that the checksums of messages between > > > your > > > kernel client and OSD are incorrect. It could be actual physical > > > transmission errors, but if you don't see other issues then this > > > isn't > > > fatal; they can recover from it. > > > > > > On Wed, Oct 4, 2017 at 8:52 AM Josy <josy@xxxxxxxxxxxxxxxxxxxxx> > > > > wrote: > > > > > > > > Hi, > > > > > > > > We have setup a cluster with 8 OSD servers (31 disks) > > > > > > > > Ceph health is Ok. > > > > -------------- > > > > [root@las1-1-44 ~]# ceph -s > > > > cluster: > > > > id: de296604-d85c-46ab-a3af-add3367f0e6d > > > > health: HEALTH_OK > > > > > > > > services: > > > > mon: 3 daemons, quorum > > > > ceph-las-mon-a1,ceph-las-mon-a2,ceph-las-mon-a3 > > > > mgr: ceph-las-mon-a1(active), standbys: ceph-las-mon-a2 > > > > osd: 31 osds: 31 up, 31 in > > > > > > > > data: > > > > pools: 4 pools, 510 pgs > > > > objects: 459k objects, 1800 GB > > > > usage: 5288 GB used, 24461 GB / 29749 GB avail > > > > pgs: 510 active+clean > > > > ==================== > > > > > > > > We created a pool and mounted it as RBD in one of the client > > > > server. > > > > While adding data to it, we see this below error : > > > > > > > > ======== > > > > [939656.039750] libceph: osd20 10.255.0.9:6808 bad > > > > crc/signature > > > > [939656.041079] libceph: osd16 10.255.0.8:6816 bad > > > > crc/signature > > > > [939735.627456] libceph: osd11 10.255.0.7:6800 bad > > > > crc/signature > > > > [939735.628293] libceph: osd30 10.255.0.11:6804 bad > > > > crc/signature > > > > > > > > ========= > > > > > > > > Can anyone explain what is this and if I can fix it ? > > > > > > > > > > > > _______________________________________________ > > > > ceph-users mailing list > > > > ceph-users@xxxxxxxxxxxxxx > > > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > > > > > > > _______________________________________________ > > > ceph-users mailing list > > > ceph-users@xxxxxxxxxxxxxx > > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > > > > > > > > > -- > > Jason > > _______________________________________________ > > ceph-users mailing list > > ceph-users@xxxxxxxxxxxxxx > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > Confidentiality: This email and any attachments are confidential and > may be subject to copyright, legal or some other professional > privilege. They are intended solely for the attention and use of the > named addressee(s). They may only be copied, distributed or disclosed > with the consent of the copyright owner. If you have received this > email by mistake or by breach of the confidentiality clause, please > notify the sender immediately by return email and delete or destroy > all copies of the email. Any confidentiality, privilege or copyright > is not waived or lost because this email has been sent to you by > mistake. > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com