illumos gate

console output gives:

OpenIndiana Build oi_148 64-bit
SunOS Release 5.11 - Copyright 1983-2010 Oracle and/or its affiliates.
All rights reserved. Use is subject to license terms.

panic[cpu0]/thread=ffffff0006573c40: zfs: allocating allocated segment(offset=50166824960 size=4096)

Warning - stack not written to the dump buffer
ffffff0006573560 genunix:vcmn_err+2c ()
ffffff0006573650 zfs:zfs_panic_recover+ae ()
ffffff00065736f0 zfs:space_map_add+d3 ()
ffffff00065737a0 zfs:space_map_load+403 ()
ffffff0006573800 zfs:metaslab_activate+95 ()
ffffff00065738c0 zfs:metaslab_group_alloc+246 ()
ffffff0006573980 zfs:metaslab_alloc_dva+2aa ()
ffffff0006573a20 zfs:metaslab_alloc+9c ()
ffffff0006573a60 zfs:zio_dva_allocate+57 ()
ffffff0006573a90 zfs:zio_execute+8d ()
ffffff0006573b30 genunix:taskq_thread+248 ()
ffffff0006573b40 unix:thread_start+8 ()

skipping system dump - no dump device configured
rebooting...

It doesn't seem to be a hardware related error - the machine stays in a boot loop.

after booting from live-cd and importing with zfs_recover works (still shows allocation error). scrubbing shows no error.

rebooting from hd and further reboots are showing no problems after that...