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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [Xen-users] Data corruption with xl migrate
On Sun, Dec 17, 2017 at 3:53 PM, Andreas Pflug <pgadmin@xxxxxxxxxxxxxxxxx> wrote: > Still experiencing data corruption when migrating 3.16 VMs from one host > to another... > Seems independent of Xen version or storage backend. > > Regards > Andreas > > Am 13.12.17 um 09:12 schrieb Andreas Pflug: >> Recently, I encountered file system data corruption on several systems >> after a migration (ext4, xfs, zfs). So far, I haven't been able to nail >> down the cause for it. >> >> All VMs affected run Debian Jessie with 3.16 kernel. Possibly newer 3.16 >> kernels are more likely to suffer corruption. >> >> This happened on a Xen 4.1 cluster (yes, really old) using a SAN storage >> system, but also on a Xen 4.8 cluster with DRBD mirroring. All systems >> are working for >>1 year now, only recently those filesystem corruption >> started to happen. Data blocks seem to get randomly garbled. >> >> Migration of Debian Stretch or Windows VMs didn't show any anomalies so far. >> >> Can anyone shed some light on this? Thanks for the report -- cc'ing a few random people who know more about the block layer / Debian kernels. It seems Debian Jessie 3.16 kernel was experiencing corruption on migration, but not the Debian Stretch kernel or Windows VMs. That sounds like a bug in the Debian kernel; any ideas about what patch may be worth backporting / any steps to help further investigate the source of the problems? Thanks, -George _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-devel
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