kern/59153: crash dump doesn't dump

[paul%whooppee.com@localhost]

>Number:         59153
>Category:       kern
>Synopsis:       crash doesn't dump
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Mar 07 22:45:01 +0000 2025
>Originator:     Paul Goyette
>Release:        NetBSD 10.99.12
>Organization:
+---------------------+--------------------------+----------------------+
| Paul Goyette (.sig) | PGP Key fingerprint:     | E-mail addresses:    |
| (Retired)           | 1B11 1849 721C 56C8 F63A | paul%whooppee.com@localhost    |
| Software Developer  | 6E2E 05FD 15CE 9F2D 5102 | pgoyette%netbsd.org@localhost  |
| & Network Engineer  |                          | pgoyette99%gmail.com@localhost |
+---------------------+--------------------------+----------------------+
>Environment:
	
	
System: NetBSD speedy.whooppee.com 10.99.12 NetBSD 10.99.12 (SPEEDY 2025-02-09 23:04:47 UTC) #0: Mon Feb 10 04:36:23 UTC 2025 paul%speedy.whooppee.com@localhost:/build/netbsd-local/obj/amd64/sys/arch/amd64/compile/SPEEDY amd64
Architecture: x86_64
Machine: amd64
>Description:
When system panics it tries to write a dumpfile.  However, the dump
fails without a detailed error, and the failure is not written to the
dmesg buffer.

# swapctl -z
dump device is dk6

[     1.658122] ld0: GPT GUID: 4ebed702-001b-41b4-8b42-2d8886317b60
...
[     1.701091] dk6 at ld0: "NVME-dump", 629145600 blocks at 2411726848, type: swap
...
[   229.000000] dump [   1.0000000] Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
	
>How-To-Repeat:
just crash/panic - perhaps it needs dump partition to reside on gpt
drive, vs mbr?
	
>Fix:
Please

>Unformatted: