[linus:master] [ovl] a518e63c37: kselftests.filesystems/fscontext_ns.fscontext_ns_test.fscontext_ns.overlay.create_from_descendant_userns.fail

[linus:master] [ovl] a518e63c37: kselftests.filesystems/fscontext_ns.fscontext_ns_test.fscontext_ns.overlay.create_from_descendant_userns.fail

[kernel test robot]

Hello,

kernel test robot noticed "kselftests.filesystems/fscontext_ns.fscontext_ns_test.fscontext_ns.overlay.create_from_descendant_userns.fail" on:

commit: a518e63c377574784f49653ef5314c70e2463b0c ("ovl: return EINVAL instead of EIO in case of mismatched user_ns")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

[test failed on linux-next/master 7649ba73f9e7e1e04d0b46213e39c79ae09dd55c]

in testcase: kselftests
version: kselftests-x86_64-24a19b953e2a-1_20261012
with following parameters:

	group: filesystems

config: x86_64-rhel-9.4-kselftests
compiler: gcc-14
test machine: 16 threads Intel(R) Core(TM) i7-13620H (Raptor Lake) with 32G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <yi1.lai@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202611020115.2281e158-lkp@intel.com


026-10-30 20:02:04 make -j16 TARGETS=filesystems/fscontext_ns run_tests
gcc -Wall -O0 -g -isystem /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-a518e63c377574784f49653ef5314c70e2463b0c/usr/include -isystem /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-a518e63c377574784f49653ef5314c70e2463b0c/tools/testing/selftests/../../../tools/include/uapi -D_GNU_SOURCE= -I/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-a518e63c377574784f49653ef5314c70e2463b0c/tools/testing/selftests/../../../tools/testing/selftests  -o /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-a518e63c377574784f49653ef5314c70e2463b0c/tools/testing/selftests/filesystems/fscontext_ns/fscontext_ns_test fscontext_ns_test.c ../utils.c -lcap
# timeout set to 300
# selftests: filesystems/fscontext_ns: fscontext_ns_test
# TAP version 13
# 1..3
# # Starting 3 tests from 3 test cases.
# #  RUN           global.create_from_same_userns ...
# #            OK  global.create_from_same_userns
# ok 1 global.create_from_same_userns
# #  RUN           fscontext_ns.binfmt_misc.create_from_descendant_userns ...
# # fscontext_ns_test.c:215:create_from_descendant_userns:TAINT_WARN already set, not checking for a new warning
# #            OK  fscontext_ns.binfmt_misc.create_from_descendant_userns
# ok 2 fscontext_ns.binfmt_misc.create_from_descendant_userns
# #  RUN           fscontext_ns.overlay.create_from_descendant_userns ...
# # fscontext_ns_test.c:208:create_from_descendant_userns:Expected variant->expected_errno (5) == errno (22)
# # create_from_descendant_userns: Test terminated by assertion
# #          FAIL  fscontext_ns.overlay.create_from_descendant_userns
# not ok 3 fscontext_ns.overlay.create_from_descendant_userns
# # FAILED: 2 / 3 tests passed.
# # Totals: pass:2 fail:1 xfail:0 xpass:0 skip:0 error:0
not ok 1 selftests: filesystems/fscontext_ns: fscontext_ns_test # exit=1


The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20261102/202611020115.2281e158-lkp@intel.com



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