FreeBSD-main-amd64-test - Build #25010 - Still Unstable

FreeBSD-main-amd64-test - Build #25010 (722b8e3cb62bd3e43035527e08fe058d5046901d) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/25010/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/25010/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/25010/console

Status explanation:
"Unstable" - some tests are suspected being broken by the following changes
"Still Unstable" - the failing test cases have not been fixed by these
                   following changes and this is a notification to note that
                   these changes have not been fully tested by the CI system

Change summaries:
(Those commits are likely but not certainly responsible)

fe429e6794d322636e7c1e520d50ec0cb711dd14 by stevek:
stand/efi: Changes to efichar to allow it to be used in the kernel

2aee804c9ef02b2ffa3e35037ea45f43e1709d2f by stevek:
kerneldump: Add flag to indicate kernel core was successfully dumped

637e67e0329058c86353dbe523740e34d8fefd11 by bnovkov:
ddb: Drop obsolete -FreeBSD identifier from license

722b8e3cb62bd3e43035527e08fe058d5046901d by bnovkov:
Fix style nits in kern_linker.c



The failed test cases:

2 tests failed.
FAILED:  sys.fs.tmpfs.times_test.empty

Error Message:
Test case was expecting a failure but none were raised

FAILED:  cddl.usr.sbin.zfsd.zfsd_unittest.main

Error Message:
Received signal 6