[DragonFlyBSD - Bug #3093] (Closed) Dump failed: Partition too small

bugtracker-admin at leaf.dragonflybsd.org bugtracker-admin at leaf.dragonflybsd.org
Mon Mar 12 17:42:33 PDT 2018

Issue #3093 has been updated by liweitianux.

Status changed from New to Closed

Recent master dumps OK; should be fixed by dillon.

Bug #3093: Dump failed: Partition too small

* Author: liweitianux
* Status: Closed
* Priority: High
* Assignee: 
* Category: Kernel
* Target version: 

I'm running DFly on a VPS, and sometimes it crashes but failed to dump, showing such an error:

Dump failed. Partition too small.

Today I tested the crash dump on a VirtualBox machine with DFly-5.0.0 LiveCD.  The virtual machine has 512 MB RAM, and configured with a 1 GB swap partition as the dump device.  Then I manually broke into debugger "db>", type "call dumpsys", but it failed with code 0x23 and message "Dump failed. Partition too small."  See also the attached screenshot 1.

As a comparison, I booted FreeBSD 11.1 LiveCD on the same virtual machine, set dump device, manually triggered the panic with "sysctl debug.kdb.panic=1".  It dumped successfully and rebooted, then I saved the dump information.  The attached screenshot 2 shows the information.

I also have a bare metal running DFly, and I can provide further tests if necessary.


dfly.dump.failed.png (9.92 KB)
freebsd.dump.ok.png (12.1 KB)

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