linux-next: KUnit failure after merge of the mm-nonmm-unstable tree

[Mark Brown]

Hi all,

After merging the mm-nonmm-unstable tree, today's linux-next failed
KUnit testing like this:

[14:20:52] Configuring KUnit Kernel ...
[14:20:52] Building KUnit Kernel ...
Populating config with:
$ make ARCH=arm64 O=/tmp/next/arm64_kunit olddefconfig CROSS_COMPILE=aarch64-linux-gnu-
Building with:
$ make all compile_commands.json scripts_gdb ARCH=arm64 O=/tmp/next/arm64_kunit --jobs=192 CROSS_COMPILE=aarch64-linux-gnu-
[14:21:06] Starting KUnit Kernel (1/1)...
Running tests with:
$ qemu-system-aarch64 -nodefaults -m 1024 -kernel /tmp/next/arm64_kunit/arch/arm64/boot/Image.gz -append 'kunit.enable=1 console=ttyAMA0 kunit_shutdown=reboot' -no-reboot -nographic -accel kvm -accel hvf -accel tcg -serial stdio -machine virt -cpu max
[14:22:11] ============================================================
[14:22:11] =================== cmdline (8 subtests) ===================
[14:22:11] # cmdline_test_memparse: EXPECTATION FAILED at lib/tests/cmdline_kunit.c:249
[14:22:11] Expected ret == e->result, but
[14:22:11]     ret == -16 (0xfffffffffffffff0)
[14:22:11]     e->result == -1 (0xffffffffffffffff)
[14:22:11] when parsing '0xffffffffffffffff0'
[14:22:11] [FAILED] cmdline_test_memparse
[14:22:11]     # module: cmdline_kunit
[14:22:11] # cmdline: pass:7 fail:1 skip:0 total:8
[14:22:11] # Totals: pass:7 fail:1 skip:0 total:8
[14:22:11] ===================== [FAILED] cmdline =====================
[14:22:11] ============================================================
[14:22:11] Testing complete. Ran 9225 tests: passed: 9104, failed: 1, skipped: 120
[14:22:11] Failures: cmdline.cmdline_test_memparse
[14:22:11] Test results stored in /tmp/next/arm64_kunit.json
[14:22:11] Elapsed time: 79.318s total, 0.002s configuring, 14.632s building, 64.682s running

I honestly have no idea what's triggering this, nothing jumps out from
the commits introduced in the merge of the branch.  If I have time later
I'll try to bisect the issue.  I have used the tree from next-20260602
instead.

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