On Wed, Jul 25, 2018 at 5:51 PM, Jason Dillaman <jdillama@xxxxxxxxxx> wrote: > > > On Wed, Jul 25, 2018 at 5:41 PM Alex Gorbachev <ag@xxxxxxxxxxxxxxxxxxx> > wrote: >> >> I am not sure this related to RBD, but in case it is, this would be an >> important bug to fix. >> >> Running LVM on top of RBD, XFS filesystem on top of that, consumed in RHEL >> 7.4. >> >> When running a large read operation and doing LVM snapshots during >> that operation, the block being read winds up all zeroes in pagecache. >> >> Dropping the caches syncs up the block with what's on "disk" and >> everything is fine. >> >> Working on steps to reproduce simply - ceph is Luminous 12.2.7, RHEL >> client is Jewel 10.2.10-17.el7cp > > > Is this krbd or QEMU+librbd? If the former, what kernel version are you > running? It's krbd on RHEL. RHEL kernel: Linux dmg-cbcache01 3.10.0-862.el7.x86_64 #1 SMP Wed Mar 21 18:14:51 EDT 2018 x86_64 x86_64 x86_64 GNU/Linux > -- > Jason _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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