IO Errors in Proxmox VM

Hy @ All,

at the Moment I'm testing if Proxmox runs smooth and could be integrated in our Firm.

But I get a strange Error inside a debian VM.

For Tests we installed openmediavault which is a NAS Distribution based on Debian.
So I generated a VM with 2 Virtual disks. 1 is 10Gig the second is about 16TB (A bigger SAN gives this Space)

This ran wonderfull so I filled the NAS with media data for testing.

After 2 Day and 1.8TB data uploading with samba I got these Errors in the VR Debian System:

Jan 31 01:18:59 media kernel: [128592.136733] end_request: I/O error, dev vdb, sector 3878633888
Jan 31 01:18:59 media kernel: [128592.140719] Buffer I/O error on device vdb1, logical block 484828980
Jan 31 01:18:59 media kernel: [128592.140719] lost page write due to I/O error on vdb1
Jan 31 01:18:59 media kernel: [128592.140719] Buffer I/O error on device vdb1, logical block 484828981
Jan 31 01:18:59 media kernel: [128592.140719] lost page write due to I/O error on vdb1

a little later this:

Jan 31 01:18:59 media kernel: [128592.140719] end_request: I/O error, dev vdb, sector 3878634896
Jan 31 01:18:59 media kernel: [128592.140719] end_request: I/O error, dev vdb, sector 3878635904
Jan 31 01:18:59 media kernel: [128592.140719] end_request: I/O error, dev vdb, sector 3878636912
Jan 31 01:18:59 media kernel: [128592.161932] end_request: I/O error, dev vdb, sector 3878636920
Jan 31 01:18:59 media kernel: [128592.161932] end_request: I/O error, dev vdb, sector 3878637928
Jan 31 01:18:59 media kernel: [128592.161932] end_request: I/O error, dev vdb, sector 3878638936

and ends up with this message:

Jan 31 01:19:00 media kernel: [128592.311082] end_request: I/O error, dev vdb, sector 3878868872
Jan 31 01:19:00 media kernel: [128592.351101] Aborting journal on device vdb1-8.
Jan 31 01:19:00 media kernel: [128592.352044] JBD2: Detected IO errors while flushing file data on vdb1-8
Jan 31 01:19:00 media kernel: [128592.352591] EXT4-fs error (device vdb1): ext4_journal_start_sb: Detected aborted journal
Jan 31 01:19:00 media kernel: [128592.352593] EXT4-fs (vdb1): Remounting filesystem read-only

So everything is dead.

On the Proxmox System not 1 logentry tells about any Error.

For me this Error is reproducable, I did this 3 times with Sata, SCSI or Virtio Drivers (standard Config and comlete new VM install).

Last time with:
cache = direct sync

and VM option:
elevator = noop
This leads to: JBD: barrier-based sync failed on vda1-8 - disabling barriers
which shouldn't be a problem.


At the Moment (after a Proxmox reboot) when I start the VM I get this Kernel Log:



[ 7.821427] JBD: barrier-based sync failed on vda1-8 - disabling barriers
[ 8.955052] end_request: I/O error, dev vdb, sector 3867150344
[ 8.959047] Buffer I/O error on device vdb1, logical block 3867148296
[ 8.959047] lost page write due to I/O error on vdb1
[ 8.959047] Buffer I/O error on device vdb1, logical block 3867148297
[ 8.959047] lost page write due to I/O error on vdb1
[ 8.959047] Buffer I/O error on device vdb1, logical block 3867148298
[ 8.959047] lost page write due to I/O error on vdb1
[ 8.959047] Buffer I/O error on device vdb1, logical block 3867148299
[ 8.959047] lost page write due to I/O error on vdb1
[ 8.959047] Buffer I/O error on device vdb1, logical block 3867148300
[ 8.959047] lost page write due to I/O error on vdb1
[ 8.959047] Buffer I/O error on device vdb1, logical block 3867148301
[ 8.959047] lost page write due to I/O error on vdb1
[ 8.959047] Buffer I/O error on device vdb1, logical block 3867148302
[ 8.959047] lost page write due to I/O error on vdb1
[ 8.959047] Buffer I/O error on device vdb1, logical block 3867148303
[ 8.959047] lost page write due to I/O error on vdb1
[ 8.959047] Buffer I/O error on device vdb1, logical block 3867148304
[ 8.959047] lost page write due to I/O error on vdb1
[ 8.959047] Buffer I/O error on device vdb1, logical block 3867148305
[ 8.959047] lost page write due to I/O error on vdb1
[ 8.959047] end_request: I/O error, dev vdb, sector 3870951424
[ 8.959047] end_request: I/O error, dev vdb, sector 3871344648
[ 8.959047] end_request: I/O error, dev vdb, sector 3875538952
[ 10.613150] EXT4-fs (vdb1): mounted filesystem with ordered data mode


Any Ideas????

Thank you.