assertion failed on zpool import in SMF script on boot

[blackwood821]

I have a transient SMF service that mounts an external filesystem via iSCSI on boot. The service script start method runs zpool import <pool_name>. Sometimes when the system boots the import command succeeds with no issues but sometimes it throws this error:

assertion failed for thread 0xfed72a40, thread-id 1: avl_find() succeeded inside avl_add(), file /home/admin/smartos-live/projects/illumos/usr/src/common/avl/avl.c, line 649

@bahamat said he thinks this looks like a bug.

For now I have worked around it by looping and attempting the zpool import command X times and any time it fails on the first attempt it always succeeds on the second attempt.

Prior to the import failing I run the necessary iscsiadm commands to make sure everything is configured properly and the device is discoverable before the import.

[pfmooney]

Is the offending command leaving a core file in /zones/global/cores? Having access to that would be helpful for the investigation.

[blackwood821]

@pfmooney yes it is and here it is.

core.zpool.6220.zip