FreeBSD-stable-15-amd64-test - Build #846 - Still Unstable

FreeBSD-stable-15-amd64-test - Build #846 (87466b1956975ed49a8df7d0de019f0e4f7b7b97) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-stable-15-amd64-test/846/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-stable-15-amd64-test/846/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-stable-15-amd64-test/846/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)

808241e2ebe58645b650f0b6b13f461f7231a032 by fuz:
libc/riscv64: temporarily unhook strrchr() from the build

d7d22907ff749664258208b250258f9f46d97572 by fuz:
depend-cleanup.sh: rebuild strrchr.o on riscv64 if it came from

9e9303a8aa1b340b6bd93faec427260062be16bd by fuz:
libc: Guard mergesort() allocation size arithmetic

48a47c06c335cddbca51cca3134a5e2ad1c4cd95 by fuz:
qsort.3: Document mergesort() behaviour on size overflow

87466b1956975ed49a8df7d0de019f0e4f7b7b97 by fuz:
msun: Fix up for recent rsqrt[fl] functions



The failed test cases:

1 tests failed.
FAILED:  sys.kern.aslr.aslr_setuid

Error Message:
/usr/src/tests/sys/kern/aslr.c:112: failed to find /sbin/ping text segment