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From: Dmitry Sivachenko <trtrmitya@gmail.com>
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Subject: 10/stable panic: softdep_deallocate_dependencies: dangling deps
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Date: Mon, 30 Jun 2014 16:22:02 +0400
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Hello!

I have several machines with rather fresh FreeBSD-10/stable.

They all have 4 SATA drives, I have small gmirrored root+var and the =
rest of the drive space is mounted as /disk1, /disk2, etc (UFS2+SU).
When a single disk fails, system panics with =
"softdep_deallocate_dependencies: dangling deps" message:
http://people.freebsd.org/~demon/softdep.png

Since all vital data (root+var) are mirrored, I expect OS to stay alive.