Re: Parent transid verify failed (and more): BTRFS for data storage in Xen VM setup

2021-04-11 Thread Adam Borowski
On Sun, Apr 11, 2021 at 12:10:34PM +0500, Roman Mamedov wrote: > On Sat, 10 Apr 2021 17:06:22 -0600 > Chris Murphy wrote: > > > Right. The block device (partition containing the Btrfs file system) > > must be exclusively used by one kernel, host or guest. Dom0 or DomU. > > Can't be both. > > > >

Re: Parent transid verify failed (and more): BTRFS for data storage in Xen VM setup

2021-04-11 Thread Roman Mamedov
On Sat, 10 Apr 2021 17:06:22 -0600 Chris Murphy wrote: > Right. The block device (partition containing the Btrfs file system) > must be exclusively used by one kernel, host or guest. Dom0 or DomU. > Can't be both. > > The only exception I'm aware of is virtiofs or virtio-9p, but I > haven't mess

Re: Parent transid verify failed (and more): BTRFS for data storage in Xen VM setup

2021-04-10 Thread Andrei Borzenkov
On 11.04.2021 02:06, Chris Murphy wrote: > Right. The block device (partition containing the Btrfs file system) > must be exclusively used by one kernel, host or guest. Dom0 or DomU. > Can't be both. > > The only exception I'm aware of is virtiofs or virtio-9p, but I > haven't messed with that stu

Re: Parent transid verify failed (and more): BTRFS for data storage in Xen VM setup

2021-04-10 Thread Chris Murphy
On Sat, Apr 10, 2021 at 8:49 AM Roman Mamedov wrote: > > On Sat, 10 Apr 2021 13:38:57 + > Paul Leiber wrote: > > > d) Perhaps the complete BTRFS setup (Xen, VMs, pass through the partition, > > Samba share) is flawed? > > I kept reading and reading to find where you say you unmounted in on t

Re: Parent transid verify failed (and more): BTRFS for data storage in Xen VM setup

2021-04-10 Thread Roman Mamedov
On Sat, 10 Apr 2021 13:38:57 + Paul Leiber wrote: > d) Perhaps the complete BTRFS setup (Xen, VMs, pass through the partition, > Samba share) is flawed? I kept reading and reading to find where you say you unmounted in on the host, and then... :) > e) Perhaps it is wrong to mount the BTRFS