Ksawlii/kernel_samsung_a53x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
kernel_samsung_a53x/tools/testing/selftests
History
Yonghong Song d55932ee41 selftests/bpf: Fix flaky test btf_map_in_map/lookup_update 
[ Upstream commit 14bb1e8c8d4ad5d9d2febb7d19c70a3cf536e1e5 ]

Recently, I frequently hit the following test failure:

  [root@arch-fb-vm1 bpf]# ./test_progs -n 33/1
  test_lookup_update:PASS:skel_open 0 nsec
  [...]
  test_lookup_update:PASS:sync_rcu 0 nsec
  test_lookup_update:FAIL:map1_leak inner_map1 leaked!
  #33/1    btf_map_in_map/lookup_update:FAIL
  #33      btf_map_in_map:FAIL

In the test, after map is closed and then after two rcu grace periods,
it is assumed that map_id is not available to user space.

But the above assumption cannot be guaranteed. After zero or one
or two rcu grace periods in different siturations, the actual
freeing-map-work is put into a workqueue. Later on, when the work
is dequeued, the map will be actually freed.
See bpf_map_put() in kernel/bpf/syscall.c.

By using workqueue, there is no ganrantee that map will be actually
freed after a couple of rcu grace periods. This patch removed
such map leak detection and then the test can pass consistently.

Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20240322061353.632136-1-yonghong.song@linux.dev
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:06 +01:00
..
android Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
arm64 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bpf selftests/bpf: Fix flaky test btf_map_in_map/lookup_update 2024-11-19 14:19:06 +01:00
breakpoints Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
capabilities Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cgroup Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
clone3 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
core Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cpu-hotplug Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cpufreq Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
damon Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dmabuf-heaps Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
drivers selftests: netdevsim: fix the udp_tunnel_nic test 2024-11-18 12:13:01 +01:00
efivarfs selftests/efivarfs: create-read: fix a resource leak 2024-11-18 11:43:13 +01:00
exec Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
filesystems selftests/binderfs: use the Makefile's rules, not Make's implicit rules 2024-11-19 12:26:56 +01:00
firmware Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fpu Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ftrace tracing/selftests: Fix kprobe event name test for .isra. functions 2024-11-19 14:19:00 +01:00
futex Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
gpio Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ia64 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
intel_pstate Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipc Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ir Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kcmp selftests/kcmp: remove unused open mode 2024-11-19 12:26:59 +01:00
kexec Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kmod Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kselftest Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kvm Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
lib Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
livepatch Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
lkdtm Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
locking Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
media_tests Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
membarrier Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
memfd Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
memory-hotplug Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mincore Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mount Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mqueue selftests/mqueue: Set timeout to 180 seconds 2024-11-19 09:22:15 +01:00
net selftests: reuseaddr_conflict: add missing new line at the end of the output 2024-11-19 09:22:47 +01:00
netfilter Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nsfs Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ntb Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
openat2 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pid_namespace Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pidfd selftests/pidfd: Fix ksft print formats 2024-11-18 11:43:02 +01:00
powerpc selftests/powerpc: Fix error handling in FPU/VMX preemption tests 2024-11-18 12:12:20 +01:00
prctl Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
proc Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pstore Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ptp Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ptrace Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rcutorture Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
resctrl selftests/resctrl: Ensure the benchmark commands fits to its array 2024-11-18 11:43:02 +01:00
rseq Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rtc Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
safesetid Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
seccomp Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sigaltstack Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
size Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sparc64 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
splice Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
static_keys Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sync Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sysctl Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tc-testing Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
timens Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
timers selftests: timers: Fix valid-adjtimex signed left-shift undefined behavior 2024-11-19 11:32:44 +01:00
tmpfs Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tpm2 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
uevent Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
user Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vDSO Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vm selftests/mm: compaction_test: fix bogus test success on Aarch64 2024-11-19 14:19:02 +01:00
watchdog Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
wireguard Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
x86 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
zram Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
gen_kselftest_tar.sh Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kselftest.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kselftest_deps.sh Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kselftest_harness.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kselftest_install.sh Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kselftest_module.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
lib.mk Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Makefile Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
run_kselftest.sh Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00