Opened 3 years ago

Closed 23 months ago

#707 closed Feature Request (fixed)

ZFS-only system can not save crashdumps (no dumpdev)

Reported by: mjollnirpaul Owned by:
Priority: major Milestone:
Component: System Configuration Version:
Keywords: Cc: trac-bugs@…


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.

Change History (4)

comment:1 Changed 23 months ago by joshms

  • Resolution set to invalid
  • Status changed from new to closed

This ticket is going to be moved to the to-do list as a feature request. If you would like to make a feature request in the future head on over to the to-do list at

comment:2 Changed 23 months ago by kris

This can be marked as fixed as well. In 9.2-RELEASE we started adding SWAP space back to the default install, which can be used for crash-dumps.

comment:3 Changed 23 months ago by joshms

  • Resolution invalid deleted
  • Status changed from closed to reopened

comment:4 Changed 23 months ago by joshms

  • Resolution set to fixed
  • Status changed from reopened to closed
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