[Trac-bugs] [PC-BSD Trac] #707: ZFS-only system can not save crashdumps (no dumpdev)

PC-BSD trac at pcbsd.org
Thu Feb 21 09:16:04 PST 2013

#707: ZFS-only system can not save crashdumps (no dumpdev)
 Reporter:  mjollnirpaul  |       Type:  System Enhancement
   Status:  new           |   Priority:  major
Milestone:                |  Component:  System Configuration
  Version:                |   Keywords:
 PC-BSD 9.1 @ amd64
 I set (or this was already default) dumpdev to AUTO in rc.conf, and
 enlarged the swap zvol to match the size of my RAM.  I've had several
 crashes :/ so I'd like to have crashdumps to append to bug reports.

 I consider this "major" (or even "critical" or "blocker") 'cause like it
 is now one can not resolve other issues on a ZFS-only setup.

 I remember crashdumps on a ZVOL were possible on OpenSolaris/Solaris
 Express and OpenIndiana, so ZFS should be able to handle that.  I didn't
 find a solution on the net, just some pages stating it's not possible to
 dump on a ZVOL on FreeBSD.

Ticket URL: <http://trac.pcbsd.org/ticket/707>
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