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| author | Jakub Kicinski <kuba@kernel.org> | 2024-04-29 07:44:26 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-04-30 08:15:32 -0700 |
| commit | 9da271f825e42156058a2eb09360bc993853bbba (patch) | |
| tree | cc187ebd5dcbf93d1db54c23788b8ef2c62ccaa6 /tools/testing/selftests/net/lib/py | |
| parent | 0f0cdf312ecc06e63fbba95caf2844e2c405b076 (diff) | |
selftests: drv-net-hw: add test for memory allocation failures with page pool
Bugs in memory allocation failure paths are quite common.
Add a test exercising those paths based on qstat and page pool
failure hook.
Running on bnxt:
# ./drivers/net/hw/pp_alloc_fail.py
KTAP version 1
1..1
# ethtool -G change retval: success
ok 1 pp_alloc_fail.test_pp_alloc
# Totals: pass:1 fail:0 xfail:0 xpass:0 skip:0 error:0
I initially wrote this test to validate commit be43b7489a3c ("net/mlx5e:
RX, Fix page_pool allocation failure recovery for striding rq") but mlx5
still doesn't have qstat. So I run it on bnxt, and while bnxt survives
I found the problem fixed in commit 730117730709 ("eth: bnxt: fix counting
packets discarded due to OOM and netpoll").
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20240429144426.743476-7-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/testing/selftests/net/lib/py')
| -rw-r--r-- | tools/testing/selftests/net/lib/py/ksft.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/lib/py/ksft.py b/tools/testing/selftests/net/lib/py/ksft.py index f84e9fdd0032..4769b4eb1ea1 100644 --- a/tools/testing/selftests/net/lib/py/ksft.py +++ b/tools/testing/selftests/net/lib/py/ksft.py @@ -11,6 +11,10 @@ KSFT_RESULT = None KSFT_RESULT_ALL = True +class KsftFailEx(Exception): + pass + + class KsftSkipEx(Exception): pass |