[Qemu-devel] [Bug 1696180] Re: Issues with qemu-img, libgfapi, and encryption at rest

[Ziemowit Pierzycki]

I'm using Fedora 24 with version:

qemu-img 2.6.2
glusterfs-api-3.8.12

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https://bugs.launchpad.net/bugs/1696180

Title:
  Issues with qemu-img, libgfapi, and encryption at rest

Status in QEMU:
  New

Bug description:
  Hi,

  Encryption-at-rest has been supported for some time now.  The client
  is responsible for encrypting the files with a help of a master key
  file.  I have a properly setup environment and everything appears to
  be working fine but when I use qemu-img to move a file to gluster I
  get the following:

  
  # qemu-img convert -f raw -O raw linux.iso gluster://gluster01/virt0/linux.raw
  [2017-06-06 16:52:25.489720] E [mem-pool.c:579:mem_put] 
(-->/lib64/libglusterfs.so.0(syncop_lookup+0x4e5) [0x7f30f7a36d35] 
-->/lib64/libglusterfs.so.0(+0x59f02) [0x7f30f7a32f02] 
-->/lib64/libglusterfs.so.0(mem_put+0x190) [0x7f30f7a24a60] ) 0-mem-pool: 
mem-pool ptr is NULL
  [2017-06-06 16:52:25.490778] E [mem-pool.c:579:mem_put] 
(-->/lib64/libglusterfs.so.0(syncop_lookup+0x4e5) [0x7f30f7a36d35] 
-->/lib64/libglusterfs.so.0(+0x59f02) [0x7f30f7a32f02] 
-->/lib64/libglusterfs.so.0(mem_put+0x190) [0x7f30f7a24a60] ) 0-mem-pool: 
mem-pool ptr is NULL
  [2017-06-06 16:52:25.492263] E [mem-pool.c:579:mem_put] 
(-->/lib64/libglusterfs.so.0(syncop_lookup+0x4e5) [0x7f30f7a36d35] 
-->/lib64/libglusterfs.so.0(+0x59f02) [0x7f30f7a32f02] 
-->/lib64/libglusterfs.so.0(mem_put+0x190) [0x7f30f7a24a60] ) 0-mem-pool: 
mem-pool ptr is NULL
  [2017-06-06 16:52:25.497226] E [mem-pool.c:579:mem_put] 
(-->/lib64/libglusterfs.so.0(syncop_create+0x44d) [0x7f30f7a3cf5d] 
-->/lib64/libglusterfs.so.0(+0x59f02) [0x7f30f7a32f02] 
-->/lib64/libglusterfs.so.0(mem_put+0x190) [0x7f30f7a24a60] ) 0-mem-pool: 
mem-pool ptr is NULL

  On and on until I get this message:

  [2017-06-06 17:00:03.467361] E [MSGID: 108006] [afr-common.c:4409:afr_notify] 
0-virt0-replicate-0: All subvolumes are down. Going offline until atleast one 
of them comes back up.
  [2017-06-06 17:00:03.467442] E [MSGID: 108006] [afr-common.c:4409:afr_notify] 
0-virt0-replicate-1: All subvolumes are down. Going offline until atleast one 
of them comes back up.

  I asked for help assuming it's a problem with glusterfs and was told
  it appears qemu-img's implementation of libgfapi doesn't call the
  xlator function correctly.

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