FreeBSD-main-amd64-test - Build #22849 - Still Unstable

FreeBSD-main-amd64-test - Build #22849 (247e03ed8b8341cf25dc3d9ecb846612d984f424) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/22849/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/22849/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/22849/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)

dec7db49602df75119f6b57d32f1eb58e0040abc by mjg:
Add kf_file_nlink field to kf_file and populate it

627ca221c311b5d9c4132e03664a96f390ff5c0d by mhorne:
kern_reboot: unconditionally call shutdown_reset()

5644850620aead7c257a4e3040e20201b510f499 by mhorne:
ddb: have 'reset' command use normal reboot path

6f5141456ed07a24097c2cf3d6c389bf971d78d2 by mhorne:
vtblk: secondary fix for dumping

56c438fcd4a755f0abe8254779c39a0c4b530c75 by markj:
netmap: Tell the compiler to avoid reloading ring indices

539437c8281d24450bacded3734276acd9983e90 by markj:
netmap: Fix a queue length check in the generic port rx path

854b2f302dcc73dfef2e4458d382f8149ce9167c by markj:
netmap: Correct a comment

df40e30c9786ccbf51e3acdf936d5c0e20815652 by markj:
netmap: Try to count packet drops in emulated mode

247e03ed8b8341cf25dc3d9ecb846612d984f424 by emaste:
Add git-blame ignore file



The failed test cases:

6 tests failed.
FAILED:  sys.netpfil.common.dummynet.pf_queue

Error Message:
We failed prioritisation 1 times

FAILED:  lib.libc.time.mktime_test.timegm_epoch

Error Message:
/usr/src/contrib/netbsd-tests/lib/libc/time/t_mktime.c:98: Expected errno 0, got 84, in t == (time_t)0

FAILED:  usr.sbin.etcupdate.preworld_test.main

Error Message:
Returned non-success exit status 1

FAILED:  sys.aio.aio_test.aio_socket_blocking_short_write

Error Message:
Test case body timed out

FAILED:  sys.aio.aio_test.aio_socket_blocking_short_write_vectored

Error Message:
Test case body timed out

FAILED:  sys.aio.aio_test.aio_socket_short_write_cancel

Error Message:
/usr/src/tests/sys/aio/aio_test.c:1396: aio_error(&iocb) == EINPROGRESS not met