weird bug in creating pool

[luxflow]

zpool create -m "/media/test" "test" raidz1 ata-QEMU_HARDDISK_QM00004 ata-QEMU_HARDDISK_QM00003 ata-QEMU_HARDDISK_QM00002 ata-QEMU_HARDDISK_QM00001 && zpool export test && zpool import test not works
zpool create "test" raidz1 ata-QEMU_HARDDISK_QM00004 ata-QEMU_HARDDISK_QM00003 ata-QEMU_HARDDISK_QM00002 ata-QEMU_HARDDISK_QM00001 && zpool export test && zpool import test works
only difference is changing mountpoint

If you curious why I export and import after create
It is because there is issue, when create new pool, blkid dosen't show properly. so I have to fix that with export and import

version info
ii debian-zfs 7~jessie amd64 Native ZFS filesystem metapackage for Debian.
ii libzfs2 0.6.5.7-8-jessie amd64 Native ZFS filesystem library for Linux
ii openmediavault-zfs 3.0.3 amd64 OpenMediaVault plugin for ZFS
ii zfs-dkms 0.6.5.7-8-jessie all Native ZFS filesystem kernel modules for Linux
ii zfsonlinux 8 all archive.zfsonlinux.org trust package
ii zfsutils 0.6.5.7-8-jessie amd64 command-line tools to manage ZFS filesystems

[kingneutron]

--Using a slightly different test environment (vmware workstation 11.1.4 for Linux) and Ubuntu 16.04.1--LTS-64, I do not get an error when doing virtually the same command:

$ zpool create -m "/media/test" "test" raidz1
pci-0000:02:05.0-scsi-0:0:0:0 pci-0000:02:05.0-scsi-0:0:1:0 pci-0000:02:05.0-scsi-0:0:2:0 pci-0000:02:05.0-scsi-0:0:3:0

$ df
Filesystem 1K-blocks Used Available Use% Mounted on
zmirpool1/dvcompr 1332864 128 1332736 1% /zmirpool1/dvcompr
test 3514112 0 3514112 0% /media/test

--Package version:
ii zfsutils-linux 0.6.5.6-0ubuntu12 amd64 Native OpenZFS management utilities for Linux

--Kernel:
$ uname -a
Linux xubuntu1604zfsvm 4.4.0-36-generic #55-Ubuntu SMP

--I pre-labeled the disks with a GPT label (even re-using disks from a previous test pool after running 'zpool labelclear' on them) and it worked fine... vSCSI Disk size is 1200MB, I have 2GB RAM and 2 vCPUs allocated to the VM.

(example commandline GPT label)
$ parted -s /dev/disk/by-path/pci-0000:02:05.0-scsi-0:0:0:0 mklabel gpt || exit 99

--In fact, I replicated your exact command to the best of my ability and even threw in some debugging, and it is working fine for me:

zpool create -m "/media/test" "test" raidz1 pci-0000:02:05.0-scsi-0:0:0:0 pci-0000:02:05.0-scsi-0:0:1:0 pci-0000:02:05.0-scsi-0:0:2:0 pci-0000:02:05.0-scsi-0:0:3:0 && echo '1' && zpool export test && echo '2' && zpool import test && echo '3'

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--The only thing I can think of to recommend is that you try:
a) Ubuntu 14.04 or 16.04 instead of Debian, and/or
b) Vmware Player (free) or Virtualbox (free) instead of Qemu...

[luxflow]

After trying Ubuntu 16.04 with same hypervisor (qemu) (only os change)
It works..
but I'm not sure what is the cause
here are, cause I can think
debian (os change) or zfs-package change(debian 0.6.5.7, ubuntu 0.6.5.6) or kernel change(debian backports use 4.6, ubuntu use 4.4)

[loli10K]

only difference is changing mountpoint

Likey caused by a non-empty mountpoint, closing.