FreeBSD-stable-15-amd64-test - Build #1247 - Still Unstable

FreeBSD-stable-15-amd64-test - Build #1247 (f89814a2d968df0e40d2ddbcb0863e24ea39bf94) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-stable-15-amd64-test/1247/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-stable-15-amd64-test/1247/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-stable-15-amd64-test/1247/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)

42094ab41e5ad34b56603fa343ba53f93c7f4984 by kib:
linux: correct errors from mremap(2)

ffc17f8c6b807d193e54c6269d95fa85c574fea5 by kib:
arm64 linux: Allow FUTEX_REQUEUE on arm64 by setting the brand flag

66da93680c97645f23b1ce0232c6c3caa9c52824 by kib:
x86: make machine/sysarch.h usable from assembler

8e231b6ae0168f91a072402d02df39f4a0daf70d by kib:
rtld: fix leak in get_program_var_addr() on the error path

e3440c4f1e65d5b7c2e703ccdd85acabd32abeb6 by kib:
rtld: some cosmetics in donelist_init()

f89814a2d968df0e40d2ddbcb0863e24ea39bf94 by kib:
dl_iterate_phdr(3): do not return garbage for objects not using TLS



The failed test cases:

7 tests failed.
FAILED:  sys.fs.fusefs.ext2-misc.execute

Error Message:
atf-check failed; see the output of the test for details

FAILED:  sys.netpfil.pf.unmapped_mbuf.dummynet

Error Message:
atf-check failed; see the output of the test for details

FAILED:  sys.netpfil.pf.unmapped_mbuf.v4

Error Message:
atf-check failed; see the output of the test for details

FAILED:  sys.netpfil.pf.unmapped_mbuf.v6

Error Message:
atf-check failed; see the output of the test for details

FAILED:  sys.netpfil.pf.pfsync.bulk

Error Message:
state not found on synced host

FAILED:  sys.netpfil.pf.igmp.py.TestIGMP::test_ip_opts

Error Message:
/usr/local/lib/python3.12/site-packages/scapy/packet.py:1985: AttributeError

FAILED:  lib.libexecinfo.sigtramp_test.test_backtrace_sigtramp

Error Message:
/usr/src/lib/libexecinfo/tests/sigtramp_test.c:30: n > 1 not met