zpool import -f with missing devices can lead to panic (Doc ID 1564865.1)

Last updated on JULY 29, 2016

Applies to:

Solaris Operating System - Version 10 10/09 U8 to 10 1/13 U11 [Release 10.0]
Information in this document applies to any platform.
Customer had a zpool which had a missing device. He could not attach the missing device on an exported zpool so did a zpool import -f . The host took a panic and core dump.
The "core" issue here is zpool import "-f" can be internally turned by ZFS into "uberblock rollback" (similar to zpool import -F and/or -FX)

Symptoms

System panic with:

 

Changes

 One of the devices that made the zpool is missing

Cause

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