Re: [ceph-users] LVM on top of RBD apparent pagecache corruption with snapshots

2018-08-13 Thread Alex Gorbachev
On Mon, Aug 13, 2018 at 10:25 AM, Ilya Dryomov wrote: > On Mon, Aug 6, 2018 at 8:17 PM Ilya Dryomov wrote: >> >> On Mon, Aug 6, 2018 at 8:13 PM Ilya Dryomov wrote: >> > >> > On Thu, Jul 26, 2018 at 1:55 AM Alex Gorbachev >> > wrote: >> > > >> > > On Wed, Jul 25, 2018 at 7:07 PM, Alex Gorbachev

Re: [ceph-users] LVM on top of RBD apparent pagecache corruption with snapshots

2018-08-13 Thread Ilya Dryomov
On Mon, Aug 6, 2018 at 8:17 PM Ilya Dryomov wrote: > > On Mon, Aug 6, 2018 at 8:13 PM Ilya Dryomov wrote: > > > > On Thu, Jul 26, 2018 at 1:55 AM Alex Gorbachev > > wrote: > > > > > > On Wed, Jul 25, 2018 at 7:07 PM, Alex Gorbachev > > > wrote: > > > > On Wed, Jul 25, 2018 at 6:07 PM, Alex Go

Re: [ceph-users] LVM on top of RBD apparent pagecache corruption with snapshots

2018-08-06 Thread Ilya Dryomov
On Mon, Aug 6, 2018 at 8:13 PM Ilya Dryomov wrote: > > On Thu, Jul 26, 2018 at 1:55 AM Alex Gorbachev > wrote: > > > > On Wed, Jul 25, 2018 at 7:07 PM, Alex Gorbachev > > wrote: > > > On Wed, Jul 25, 2018 at 6:07 PM, Alex Gorbachev > > > wrote: > > >> On Wed, Jul 25, 2018 at 5:51 PM, Jason D

Re: [ceph-users] LVM on top of RBD apparent pagecache corruption with snapshots

2018-08-06 Thread Ilya Dryomov
On Thu, Jul 26, 2018 at 1:55 AM Alex Gorbachev wrote: > > On Wed, Jul 25, 2018 at 7:07 PM, Alex Gorbachev > wrote: > > On Wed, Jul 25, 2018 at 6:07 PM, Alex Gorbachev > > wrote: > >> On Wed, Jul 25, 2018 at 5:51 PM, Jason Dillaman > >> wrote: > >>> > >>> > >>> On Wed, Jul 25, 2018 at 5:41 PM

Re: [ceph-users] LVM on top of RBD apparent pagecache corruption with snapshots

2018-07-27 Thread Alex Gorbachev
On Fri, Jul 27, 2018 at 9:33 AM, Ilya Dryomov wrote: > On Thu, Jul 26, 2018 at 5:15 PM Alex Gorbachev > wrote: >> >> On Thu, Jul 26, 2018 at 9:49 AM, Ilya Dryomov wrote: >> > On Thu, Jul 26, 2018 at 1:07 AM Alex Gorbachev >> > wrote: >> >> >> >> On Wed, Jul 25, 2018 at 6:07 PM, Alex Gorbachev

Re: [ceph-users] LVM on top of RBD apparent pagecache corruption with snapshots

2018-07-27 Thread Ilya Dryomov
On Thu, Jul 26, 2018 at 5:15 PM Alex Gorbachev wrote: > > On Thu, Jul 26, 2018 at 9:49 AM, Ilya Dryomov wrote: > > On Thu, Jul 26, 2018 at 1:07 AM Alex Gorbachev > > wrote: > >> > >> On Wed, Jul 25, 2018 at 6:07 PM, Alex Gorbachev > >> wrote: > >> > On Wed, Jul 25, 2018 at 5:51 PM, Jason Dill

Re: [ceph-users] LVM on top of RBD apparent pagecache corruption with snapshots

2018-07-26 Thread Alex Gorbachev
On Thu, Jul 26, 2018 at 9:49 AM, Ilya Dryomov wrote: > On Thu, Jul 26, 2018 at 1:07 AM Alex Gorbachev > wrote: >> >> On Wed, Jul 25, 2018 at 6:07 PM, Alex Gorbachev >> wrote: >> > On Wed, Jul 25, 2018 at 5:51 PM, Jason Dillaman >> > wrote: >> >> >> >> >> >> On Wed, Jul 25, 2018 at 5:41 PM Al

Re: [ceph-users] LVM on top of RBD apparent pagecache corruption with snapshots

2018-07-26 Thread Alex Gorbachev
On Thu, Jul 26, 2018 at 9:49 AM, Ilya Dryomov wrote: > On Thu, Jul 26, 2018 at 1:07 AM Alex Gorbachev > wrote: >> >> On Wed, Jul 25, 2018 at 6:07 PM, Alex Gorbachev >> wrote: >> > On Wed, Jul 25, 2018 at 5:51 PM, Jason Dillaman >> > wrote: >> >> >> >> >> >> On Wed, Jul 25, 2018 at 5:41 PM Al

Re: [ceph-users] LVM on top of RBD apparent pagecache corruption with snapshots

2018-07-26 Thread Ilya Dryomov
On Thu, Jul 26, 2018 at 1:07 AM Alex Gorbachev wrote: > > On Wed, Jul 25, 2018 at 6:07 PM, Alex Gorbachev > wrote: > > On Wed, Jul 25, 2018 at 5:51 PM, Jason Dillaman wrote: > >> > >> > >> On Wed, Jul 25, 2018 at 5:41 PM Alex Gorbachev > >> wrote: > >>> > >>> I am not sure this related to RBD,

Re: [ceph-users] LVM on top of RBD apparent pagecache corruption with snapshots

2018-07-26 Thread Alex Gorbachev
On Thu, Jul 26, 2018 at 9:21 AM, Ilya Dryomov wrote: > On Thu, Jul 26, 2018 at 1:55 AM Alex Gorbachev > wrote: >> >> On Wed, Jul 25, 2018 at 7:07 PM, Alex Gorbachev >> wrote: >> > On Wed, Jul 25, 2018 at 6:07 PM, Alex Gorbachev >> > wrote: >> >> On Wed, Jul 25, 2018 at 5:51 PM, Jason Dillama

Re: [ceph-users] LVM on top of RBD apparent pagecache corruption with snapshots

2018-07-26 Thread Ilya Dryomov
On Thu, Jul 26, 2018 at 1:55 AM Alex Gorbachev wrote: > > On Wed, Jul 25, 2018 at 7:07 PM, Alex Gorbachev > wrote: > > On Wed, Jul 25, 2018 at 6:07 PM, Alex Gorbachev > > wrote: > >> On Wed, Jul 25, 2018 at 5:51 PM, Jason Dillaman > >> wrote: > >>> > >>> > >>> On Wed, Jul 25, 2018 at 5:41 PM

Re: [ceph-users] LVM on top of RBD apparent pagecache corruption with snapshots

2018-07-25 Thread Alex Gorbachev
On Wed, Jul 25, 2018 at 7:07 PM, Alex Gorbachev wrote: > On Wed, Jul 25, 2018 at 6:07 PM, Alex Gorbachev > wrote: >> On Wed, Jul 25, 2018 at 5:51 PM, Jason Dillaman wrote: >>> >>> >>> On Wed, Jul 25, 2018 at 5:41 PM Alex Gorbachev >>> wrote: I am not sure this related to RBD, but in

Re: [ceph-users] LVM on top of RBD apparent pagecache corruption with snapshots

2018-07-25 Thread Alex Gorbachev
On Wed, Jul 25, 2018 at 6:07 PM, Alex Gorbachev wrote: > On Wed, Jul 25, 2018 at 5:51 PM, Jason Dillaman wrote: >> >> >> On Wed, Jul 25, 2018 at 5:41 PM Alex Gorbachev >> wrote: >>> >>> I am not sure this related to RBD, but in case it is, this would be an >>> important bug to fix. >>> >>> Runn

Re: [ceph-users] LVM on top of RBD apparent pagecache corruption with snapshots

2018-07-25 Thread Alex Gorbachev
On Wed, Jul 25, 2018 at 5:51 PM, Jason Dillaman wrote: > > > On Wed, Jul 25, 2018 at 5:41 PM Alex Gorbachev > 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 RH

Re: [ceph-users] LVM on top of RBD apparent pagecache corruption with snapshots

2018-07-25 Thread Jason Dillaman
On Wed, Jul 25, 2018 at 5:41 PM Alex Gorbachev 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 snapsh

[ceph-users] LVM on top of RBD apparent pagecache corruption with snapshots

2018-07-25 Thread Alex Gorbachev
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