Commit Graph

8465 Commits

Author SHA1 Message Date
SeongJae Park 29d7089bed selftests/mqueue: Set timeout to 180 seconds
[ Upstream commit 85506aca2e ]

While mq_perf_tests runs with the default kselftest timeout limit, which
is 45 seconds, the test takes about 60 seconds to complete on i3.metal
AWS instances.  Hence, the test always times out.  Increase the timeout
to 180 seconds.

Fixes: 852c8cbf34 ("selftests/kselftest/runner.sh: Add 45 second timeout per test")
Cc: <stable@vger.kernel.org> # 5.4.x
Signed-off-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-04-10 16:18:35 +02:00
Jakub Kicinski 0d7cfe2ef5 selftests: tls: use exact comparison in recv_partial
[ Upstream commit 49d821064c ]

This exact case was fail for async crypto and we weren't
catching it.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-26 18:21:12 -04:00
Matthieu Baerts (NGI0) 760d0df3ad selftests: mptcp: decrease BW in simult flows
[ Upstream commit 5e2f3c65af ]

When running the simult_flow selftest in slow environments -- e.g. QEmu
without KVM support --, the results can be unstable. This selftest
checks if the aggregated bandwidth is (almost) fully used as expected.

To help improving the stability while still keeping the same validation
in place, the BW and the delay are reduced to lower the pressure on the
CPU.

Fixes: 1a418cb8e8 ("mptcp: simult flow self-tests")
Fixes: 219d04992b ("mptcp: push pending frames when subflow has free space")
Cc: stable@vger.kernel.org
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240131-upstream-net-20240131-mptcp-ci-issues-v1-6-4c1c11e571ff@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-15 10:48:21 -04:00
Nico Pache 0d29b474fb selftests: mm: fix map_hugetlb failure on 64K page size systems
[ Upstream commit 91b80cc5b3 ]

On systems with 64k page size and 512M huge page sizes, the allocation and
test succeeds but errors out at the munmap.  As the comment states, munmap
will failure if its not HUGEPAGE aligned.  This is due to the length of
the mapping being 1/2 the size of the hugepage causing the munmap to not
be hugepage aligned.  Fix this by making the mapping length the full
hugepage if the hugepage is larger than the length of the mapping.

Link: https://lkml.kernel.org/r/20240119131429.172448-1-npache@redhat.com
Signed-off-by: Nico Pache <npache@redhat.com>
Cc: Donet Tom <donettom@linux.vnet.ibm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-15 10:48:20 -04:00
Muhammad Usama Anjum 0b08eb6372 selftests/mm: switch to bash from sh
[ Upstream commit bc29036e1d ]

Running charge_reserved_hugetlb.sh generates errors if sh is set to
dash:

./charge_reserved_hugetlb.sh: 9: [[: not found
./charge_reserved_hugetlb.sh: 19: [[: not found
./charge_reserved_hugetlb.sh: 27: [[: not found
./charge_reserved_hugetlb.sh: 37: [[: not found
./charge_reserved_hugetlb.sh: 45: Syntax error: "(" unexpected

Switch to using /bin/bash instead of /bin/sh.  Make the switch for
write_hugetlb_memory.sh as well which is called from
charge_reserved_hugetlb.sh.

Link: https://lkml.kernel.org/r/20240116090455.3407378-1-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: David Laight <David.Laight@ACULAB.COM>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-15 10:48:20 -04:00
Matthieu Baerts (NGI0) f431a58cb9 selftests: mptcp: add missing kconfig for NF Filter in v6
commit 8c86fad2ce upstream.

Since the commit mentioned below, 'mptcp_join' selftests is using
IPTables to add rules to the Filter table for IPv6.

It is then required to have IP6_NF_FILTER KConfig.

This KConfig is usually enabled by default in many defconfig, but we
recently noticed that some CI were running our selftests without them
enabled.

Fixes: 523514ed0a ("selftests: mptcp: add ADD_ADDR IPv6 test cases")
Cc: stable@vger.kernel.org
Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240131-upstream-net-20240131-mptcp-ci-issues-v1-3-4c1c11e571ff@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-03-06 14:38:49 +00:00
Matthieu Baerts (NGI0) 5d7f2e7d21 selftests: mptcp: add missing kconfig for NF Filter
commit 3645c84490 upstream.

Since the commit mentioned below, 'mptcp_join' selftests is using
IPTables to add rules to the Filter table.

It is then required to have IP_NF_FILTER KConfig.

This KConfig is usually enabled by default in many defconfig, but we
recently noticed that some CI were running our selftests without them
enabled.

Fixes: 8d014eaa92 ("selftests: mptcp: add ADD_ADDR timeout test case")
Cc: stable@vger.kernel.org
Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-03-06 14:38:49 +00:00
Magali Lemes 832cf206df selftests: net: vrf-xfrm-tests: change authentication and encryption algos
[ Upstream commit cb43c60e64 ]

The vrf-xfrm-tests tests use the hmac(md5) and cbc(des3_ede)
algorithms for performing authentication and encryption, respectively.
This causes the tests to fail when fips=1 is set, since these algorithms
are not allowed in FIPS mode. Therefore, switch from hmac(md5) and
cbc(des3_ede) to hmac(sha1) and cbc(aes), which are FIPS compliant.

Fixes: 3f251d7411 ("selftests: Add tests for vrf and xfrms")
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Magali Lemes <magali.lemes@canonical.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-01 13:21:52 +01:00
Samasth Norway Ananda 62900d358c Revert "selftests/bpf: Test tail call counting with bpf2bpf and data on stack"
This reverts commit 3eefb2fbf4.

libbpf support for "tc" progs doesn't exist for the linux-5.15.y tree.
This commit was backported too far back in upstream, to a kernel where
the libbpf support was not there for the test.

Signed-off-by: Samasth Norway Ananda <samasth.norway.ananda@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-02-23 08:55:15 +01:00
Paolo Abeni 5c45e6d015 selftests: net: avoid just another constant wait
[ Upstream commit 691bb4e49c ]

Using hard-coded constant timeout to wait for some expected
event is deemed to fail sooner or later, especially in slow
env.

Our CI has spotted another of such race:
   # TEST: ipv6: cleanup of cached exceptions - nexthop objects          [FAIL]
   #   can't delete veth device in a timely manner, PMTU dst likely leaked

Replace the crude sleep with a loop looking for the expected condition
at low interval for a much longer range.

Fixes: b3cc4f8a8a ("selftests: pmtu: add explicit tests for PMTU exceptions cleanup")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/fd5c745e9bb665b724473af6a9373a8c2a62b247.1706812005.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-02-23 08:54:57 +01:00
Paolo Abeni ea51f12e93 selftests: net: cut more slack for gro fwd tests.
[ Upstream commit cb9f4a30fb ]

The udpgro_fwd.sh self-tests are somewhat unstable. There are
a few timing constraints the we struggle to meet on very slow
environments.

Instead of skipping the whole tests in such envs, increase the
test resilience WRT very slow hosts: increase the inter-packets
timeouts, avoid resetting the counters every second and finally
disable reduce the background traffic noise.

Tested with:

for I in $(seq 1 100); do
	./tools/testing/selftests/kselftest_install/run_kselftest.sh \
		-t net:udpgro_fwd.sh || exit -1
done

in a slow environment.

Fixes: a062260a9d ("selftests: net: add UDP GRO forwarding self-tests")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/f4b6b11064a0d39182a9ae6a853abae3e9b4426a.1706812005.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-02-23 08:54:57 +01:00
Paolo Abeni f3ce3e0038 selftests: net: fix available tunnels detection
[ Upstream commit e4e4b6d568 ]

The pmtu.sh test tries to detect the tunnel protocols available
in the running kernel and properly skip the unsupported cases.

In a few more complex setup, such detection is unsuccessful, as
the script currently ignores some intermediate error code at
setup time.

Before:
  # which: no nettest in (/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin)
  # TEST: vti6: PMTU exceptions (ESP-in-UDP)                            [FAIL]
  #   PMTU exception wasn't created after creating tunnel exceeding link layer MTU
  # ./pmtu.sh: line 931: kill: (7543) - No such process
  # ./pmtu.sh: line 931: kill: (7544) - No such process

After:
  #   xfrm4 not supported
  # TEST: vti4: PMTU exceptions                                         [SKIP]

Fixes: ece1278a9b ("selftests: net: add ESP-in-UDP PMTU test")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/cab10e75fda618e6fff8c595b632f47db58b9309.1706635101.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-02-23 08:54:55 +01:00
Paolo Abeni 157e1cb2c0 selftests: net: give more time for GRO aggregation
[ Upstream commit 89abe62837 ]

The gro.sh test-case relay on the gro_flush_timeout to ensure
that all the segments belonging to any given batch are properly
aggregated.

The other end, the sender is a user-space program transmitting
each packet with a separate write syscall. A busy host and/or
stracing the sender program can make the relevant segments reach
the GRO engine after the flush timeout triggers.

Give the GRO flush timeout more slack, to avoid sporadic self-tests
failures.

Fixes: 9af771d2ec ("selftests/net: allow GRO coalesce test on veth")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Tested-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/bffec2beab3a5672dd13ecabe4fad81d2155b367.1706206101.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-02-23 08:54:53 +01:00
Jo Van Bulck 8451aa6694 selftests/sgx: Fix linker script asserts
[ Upstream commit 9fd552ee32 ]

DEFINED only considers symbols, not section names. Hence, replace the
check for .got.plt with the _GLOBAL_OFFSET_TABLE_ symbol and remove other
(non-essential) asserts.

Signed-off-by: Jo Van Bulck <jo.vanbulck@cs.kuleuven.be>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Link: https://lore.kernel.org/all/20231005153854.25566-10-jo.vanbulck%40cs.kuleuven.be
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-02-23 08:54:51 +01:00
Yafang Shao 79aadf6492 selftests/bpf: Fix issues in setup_classid_environment()
[ Upstream commit 4849775587 ]

If the net_cls subsystem is already mounted, attempting to mount it again
in setup_classid_environment() will result in a failure with the error code
EBUSY. Despite this, tmpfs will have been successfully mounted at
/sys/fs/cgroup/net_cls. Consequently, the /sys/fs/cgroup/net_cls directory
will be empty, causing subsequent setup operations to fail.

Here's an error log excerpt illustrating the issue when net_cls has already
been mounted at /sys/fs/cgroup/net_cls prior to running
setup_classid_environment():

- Before that change

  $ tools/testing/selftests/bpf/test_progs --name=cgroup_v1v2
  test_cgroup_v1v2:PASS:server_fd 0 nsec
  test_cgroup_v1v2:PASS:client_fd 0 nsec
  test_cgroup_v1v2:PASS:cgroup_fd 0 nsec
  test_cgroup_v1v2:PASS:server_fd 0 nsec
  run_test:PASS:skel_open 0 nsec
  run_test:PASS:prog_attach 0 nsec
  test_cgroup_v1v2:PASS:cgroup-v2-only 0 nsec
  (cgroup_helpers.c:248: errno: No such file or directory) Opening Cgroup Procs: /sys/fs/cgroup/net_cls/cgroup.procs
  (cgroup_helpers.c:540: errno: No such file or directory) Opening cgroup classid: /sys/fs/cgroup/net_cls/cgroup-test-work-dir/net_cls.classid
  run_test:PASS:skel_open 0 nsec
  run_test:PASS:prog_attach 0 nsec
  (cgroup_helpers.c:248: errno: No such file or directory) Opening Cgroup Procs: /sys/fs/cgroup/net_cls/cgroup-test-work-dir/cgroup.procs
  run_test:FAIL:join_classid unexpected error: 1 (errno 2)
  test_cgroup_v1v2:FAIL:cgroup-v1v2 unexpected error: -1 (errno 2)
  (cgroup_helpers.c:248: errno: No such file or directory) Opening Cgroup Procs: /sys/fs/cgroup/net_cls/cgroup.procs
  #44      cgroup_v1v2:FAIL
  Summary: 0/0 PASSED, 0 SKIPPED, 1 FAILED

- After that change
  $ tools/testing/selftests/bpf/test_progs --name=cgroup_v1v2
  #44      cgroup_v1v2:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Link: https://lore.kernel.org/r/20231111090034.4248-3-laoar.shao@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-02-23 08:54:41 +01:00
Yonghong Song 6aad081470 selftests/bpf: Fix pyperf180 compilation failure with clang18
[ Upstream commit 100888fb6d ]

With latest clang18 (main branch of llvm-project repo), when building bpf selftests,
    [~/work/bpf-next (master)]$ make -C tools/testing/selftests/bpf LLVM=1 -j

The following compilation error happens:
    fatal error: error in backend: Branch target out of insn range
    ...
    Stack dump:
    0.      Program arguments: clang -g -Wall -Werror -D__TARGET_ARCH_x86 -mlittle-endian
      -I/home/yhs/work/bpf-next/tools/testing/selftests/bpf/tools/include
      -I/home/yhs/work/bpf-next/tools/testing/selftests/bpf -I/home/yhs/work/bpf-next/tools/include/uapi
      -I/home/yhs/work/bpf-next/tools/testing/selftests/usr/include -idirafter
      /home/yhs/work/llvm-project/llvm/build.18/install/lib/clang/18/include -idirafter /usr/local/include
      -idirafter /usr/include -Wno-compare-distinct-pointer-types -DENABLE_ATOMICS_TESTS -O2 --target=bpf
      -c progs/pyperf180.c -mcpu=v3 -o /home/yhs/work/bpf-next/tools/testing/selftests/bpf/pyperf180.bpf.o
    1.      <eof> parser at end of file
    2.      Code generation
    ...

The compilation failure only happens to cpu=v2 and cpu=v3. cpu=v4 is okay
since cpu=v4 supports 32-bit branch target offset.

The above failure is due to upstream llvm patch [1] where some inlining behavior
are changed in clang18.

To workaround the issue, previously all 180 loop iterations are fully unrolled.
The bpf macro __BPF_CPU_VERSION__ (implemented in clang18 recently) is used to avoid
unrolling changes if cpu=v4. If __BPF_CPU_VERSION__ is not available and the
compiler is clang18, the unrollng amount is unconditionally reduced.

  [1] 1a2e77cf9e

Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Tested-by: Alan Maguire <alan.maguire@oracle.com>
Link: https://lore.kernel.org/bpf/20231110193644.3130906-1-yonghong.song@linux.dev
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-02-23 08:54:41 +01:00
Andrii Nakryiko efe701e916 selftests/bpf: satisfy compiler by having explicit return in btf test
[ Upstream commit f4c7e88732 ]

Some compilers complain about get_pprint_mapv_size() not returning value
in some code paths. Fix with explicit return.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20231102033759.2541186-3-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-02-23 08:54:41 +01:00
Jakub Kicinski c0d29d3033 selftests: netdevsim: fix the udp_tunnel_nic test
[ Upstream commit 0879020a78 ]

This test is missing a whole bunch of checks for interface
renaming and one ifup. Presumably it was only used on a system
with renaming disabled and NetworkManager running.

Fixes: 91f430b2c4 ("selftests: net: add a test for UDP tunnel info infra")
Acked-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240123060529.1033912-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-02-23 08:54:30 +01:00
Amit Cohen 58485b95fd selftests: mlxsw: qos_pfc: Adjust the test to support 8 lanes
[ Upstream commit b34f4de6d3 ]

'qos_pfc' test checks PFC behavior. The idea is to limit the traffic
using a shaper somewhere in the flow of the packets. In this area, the
buffer is smaller than the buffer at the beginning of the flow, so it fills
up until there is no more space left. The test configures there PFC
which is supposed to notice that the headroom is filling up and send PFC
Xoff to indicate the transmitter to stop sending traffic for the priorities
sharing this PG.

The Xon/Xoff threshold is auto-configured and always equal to
2*(MTU rounded up to cell size). Even after sending the PFC Xoff packet,
traffic will keep arriving until the transmitter receives and processes
the PFC packet. This amount of traffic is known as the PFC delay allowance.

Currently the buffer for the delay traffic is configured as 100KB. The
MTU in the test is 10KB, therefore the threshold for Xoff is about 20KB.
This allows 80KB extra to be stored in this buffer.

8-lane ports use two buffers among which the configured buffer is split,
the Xoff threshold then applies to each buffer in parallel.

The test does not take into account the behavior of 8-lane ports, when the
ports are configured to 400Gbps with 8 lanes or 800Gbps with 8 lanes,
packets are dropped and the test fails.

Check if the relevant ports use 8 lanes, in such case double the size of
the buffer, as the headroom is split half-half.

Cc: Shuah Khan <shuah@kernel.org>
Fixes: bfa804784e ("selftests: mlxsw: Add a PFC test")
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/23ff11b7dff031eb04a41c0f5254a2b636cd8ebb.1705502064.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 14:52:55 -08:00
Ido Schimmel 348112522a mlxsw: spectrum_acl_tcam: Fix stack corruption
[ Upstream commit 483ae90d8f ]

When tc filters are first added to a net device, the corresponding local
port gets bound to an ACL group in the device. The group contains a list
of ACLs. In turn, each ACL points to a different TCAM region where the
filters are stored. During forwarding, the ACLs are sequentially
evaluated until a match is found.

One reason to place filters in different regions is when they are added
with decreasing priorities and in an alternating order so that two
consecutive filters can never fit in the same region because of their
key usage.

In Spectrum-2 and newer ASICs the firmware started to report that the
maximum number of ACLs in a group is more than 16, but the layout of the
register that configures ACL groups (PAGT) was not updated to account
for that. It is therefore possible to hit stack corruption [1] in the
rare case where more than 16 ACLs in a group are required.

Fix by limiting the maximum ACL group size to the minimum between what
the firmware reports and the maximum ACLs that fit in the PAGT register.

Add a test case to make sure the machine does not crash when this
condition is hit.

[1]
Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: mlxsw_sp_acl_tcam_group_update+0x116/0x120
[...]
 dump_stack_lvl+0x36/0x50
 panic+0x305/0x330
 __stack_chk_fail+0x15/0x20
 mlxsw_sp_acl_tcam_group_update+0x116/0x120
 mlxsw_sp_acl_tcam_group_region_attach+0x69/0x110
 mlxsw_sp_acl_tcam_vchunk_get+0x492/0xa20
 mlxsw_sp_acl_tcam_ventry_add+0x25/0xe0
 mlxsw_sp_acl_rule_add+0x47/0x240
 mlxsw_sp_flower_replace+0x1a9/0x1d0
 tc_setup_cb_add+0xdc/0x1c0
 fl_hw_replace_filter+0x146/0x1f0
 fl_change+0xc17/0x1360
 tc_new_tfilter+0x472/0xb90
 rtnetlink_rcv_msg+0x313/0x3b0
 netlink_rcv_skb+0x58/0x100
 netlink_unicast+0x244/0x390
 netlink_sendmsg+0x1e4/0x440
 ____sys_sendmsg+0x164/0x260
 ___sys_sendmsg+0x9a/0xe0
 __sys_sendmsg+0x7a/0xc0
 do_syscall_64+0x40/0xe0
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

Fixes: c3ab435466 ("mlxsw: spectrum: Extend to support Spectrum-2 ASIC")
Reported-by: Orel Hagag <orelh@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/2d91c89afba59c22587b444994ae419dbea8d876.1705502064.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 14:52:55 -08:00
Amit Cohen 87c5403393 mlxsw: spectrum_acl_erp: Fix error flow of pool allocation failure
[ Upstream commit 6d6eeabcfa ]

Lately, a bug was found when many TC filters are added - at some point,
several bugs are printed to dmesg [1] and the switch is crashed with
segmentation fault.

The issue starts when gen_pool_free() fails because of unexpected
behavior - a try to free memory which is already freed, this leads to BUG()
call which crashes the switch and makes many other bugs.

Trying to track down the unexpected behavior led to a bug in eRP code. The
function mlxsw_sp_acl_erp_table_alloc() gets a pointer to the allocated
index, sets the value and returns an error code. When gen_pool_alloc()
fails it returns address 0, we track it and return -ENOBUFS outside, BUT
the call for gen_pool_alloc() already override the index in erp_table
structure. This is a problem when such allocation is done as part of
table expansion. This is not a new table, which will not be used in case
of allocation failure. We try to expand eRP table and override the
current index (non-zero) with zero. Then, it leads to an unexpected
behavior when address 0 is freed twice. Note that address 0 is valid in
erp_table->base_index and indeed other tables use it.

gen_pool_alloc() fails in case that there is no space left in the
pre-allocated pool, in our case, the pool is limited to
ACL_MAX_ERPT_BANK_SIZE, which is read from hardware. When more than max
erp entries are required, we exceed the limit and return an error, this
error leads to "Failed to migrate vregion" print.

Fix this by changing erp_table->base_index only in case of a successful
allocation.

Add a test case for such a scenario. Without this fix it causes
segmentation fault:

$ TESTS="max_erp_entries_test" ./tc_flower.sh
./tc_flower.sh: line 988:  1560 Segmentation fault      tc filter del dev $h2 ingress chain $i protocol ip pref $i handle $j flower &>/dev/null

[1]:
kernel BUG at lib/genalloc.c:508!
invalid opcode: 0000 [#1] PREEMPT SMP
CPU: 6 PID: 3531 Comm: tc Not tainted 6.7.0-rc5-custom-ga6893f479f5e #1
Hardware name: Mellanox Technologies Ltd. MSN4700/VMOD0010, BIOS 5.11 07/12/2021
RIP: 0010:gen_pool_free_owner+0xc9/0xe0
...
Call Trace:
 <TASK>
 __mlxsw_sp_acl_erp_table_other_dec+0x70/0xa0 [mlxsw_spectrum]
 mlxsw_sp_acl_erp_mask_destroy+0xf5/0x110 [mlxsw_spectrum]
 objagg_obj_root_destroy+0x18/0x80 [objagg]
 objagg_obj_destroy+0x12c/0x130 [objagg]
 mlxsw_sp_acl_erp_mask_put+0x37/0x50 [mlxsw_spectrum]
 mlxsw_sp_acl_ctcam_region_entry_remove+0x74/0xa0 [mlxsw_spectrum]
 mlxsw_sp_acl_ctcam_entry_del+0x1e/0x40 [mlxsw_spectrum]
 mlxsw_sp_acl_tcam_ventry_del+0x78/0xd0 [mlxsw_spectrum]
 mlxsw_sp_flower_destroy+0x4d/0x70 [mlxsw_spectrum]
 mlxsw_sp_flow_block_cb+0x73/0xb0 [mlxsw_spectrum]
 tc_setup_cb_destroy+0xc1/0x180
 fl_hw_destroy_filter+0x94/0xc0 [cls_flower]
 __fl_delete+0x1ac/0x1c0 [cls_flower]
 fl_destroy+0xc2/0x150 [cls_flower]
 tcf_proto_destroy+0x1a/0xa0
...
mlxsw_spectrum3 0000:07:00.0: Failed to migrate vregion
mlxsw_spectrum3 0000:07:00.0: Failed to migrate vregion

Fixes: f465261aa1 ("mlxsw: spectrum_acl: Implement common eRP core")
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/4cfca254dfc0e5d283974801a24371c7b6db5989.1705502064.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 14:52:54 -08:00
Zhao Mengmeng fbcc37f4b4 selftests/sgx: Skip non X86_64 platform
[ Upstream commit 981cf568a8 ]

When building whole selftests on arm64, rsync gives an erorr about sgx:

rsync: [sender] link_stat "/root/linux-next/tools/testing/selftests/sgx/test_encl.elf" failed: No such file or directory (2)
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1327) [sender=3.2.5]

The root casue is sgx only used on X86_64, and shall be skipped on other
platforms.

Fix this by moving TEST_CUSTOM_PROGS and TEST_FILES inside the if check,
then the build result will be "Skipping non-existent dir: sgx".

Fixes: 2adcba79e6 ("selftests/x86: Add a selftest for SGX")
Signed-off-by: Zhao Mengmeng <zhaomengmeng@kylinos.cn>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Link: https://lore.kernel.org/all/20231206025605.3965302-1-zhaomzhao%40126.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 14:52:51 -08:00
Jo Van Bulck 71005a1d9b selftests/sgx: Fix uninitialized pointer dereference in error path
[ Upstream commit 79eba8c924 ]

Ensure ctx is zero-initialized, such that the encl_measure function will
not call EVP_MD_CTX_destroy with an uninitialized ctx pointer in case of an
early error during key generation.

Fixes: 2adcba79e6 ("selftests/x86: Add a selftest for SGX")
Signed-off-by: Jo Van Bulck <jo.vanbulck@cs.kuleuven.be>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Acked-by: Kai Huang <kai.huang@intel.com>
Link: https://lore.kernel.org/all/20231005153854.25566-2-jo.vanbulck%40cs.kuleuven.be
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 14:52:51 -08:00
Jordan Rome 10193a5001 selftests/bpf: Add assert for user stacks in test_task_stack
commit 727a92d62f upstream.

This is a follow up to:
commit b8e3a87a62 ("bpf: Add crosstask check to __bpf_get_stack").

This test ensures that the task iterator only gets a single
user stack (for the current task).

Signed-off-by: Jordan Rome <linux@jordanrome.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/bpf/20231112023010.144675-1-linux@jordanrome.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-01-25 14:52:46 -08:00
Hangbin Liu a18eff8ba0 selftests/net: fix grep checking for fib_nexthop_multiprefix
[ Upstream commit a33e9da347 ]

When running fib_nexthop_multiprefix test I saw all IPv6 test failed.
e.g.

 ]# ./fib_nexthop_multiprefix.sh
 TEST: IPv4: host 0 to host 1, mtu 1300                              [ OK ]
 TEST: IPv6: host 0 to host 1, mtu 1300                              [FAIL]

 With -v it shows

 COMMAND: ip netns exec h0 /usr/sbin/ping6 -s 1350 -c5 -w5 2001:db8:101::1
 PING 2001:db8:101::1(2001:db8:101::1) 1350 data bytes
 From 2001:db8:100::64 icmp_seq=1 Packet too big: mtu=1300

 --- 2001:db8:101::1 ping statistics ---
 1 packets transmitted, 0 received, +1 errors, 100% packet loss, time 0ms

 Route get
 2001:db8:101::1 via 2001:db8:100::64 dev eth0 src 2001:db8:100::1 metric 1024 expires 599sec mtu 1300 pref medium
 Searching for:
     2001:db8:101::1 from :: via 2001:db8:100::64 dev eth0 src 2001:db8:100::1 .* mtu 1300

The reason is when CONFIG_IPV6_SUBTREES is not enabled, rt6_fill_node() will
not put RTA_SRC info. After fix:

]# ./fib_nexthop_multiprefix.sh
TEST: IPv4: host 0 to host 1, mtu 1300                              [ OK ]
TEST: IPv6: host 0 to host 1, mtu 1300                              [ OK ]

Fixes: 735ab2f65d ("selftests: Add test with multiple prefixes using single nexthop")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://lore.kernel.org/r/20231213060856.4030084-7-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 14:52:38 -08:00
Michael Ellerman 5daf0ef626 selftests/powerpc: Fix error handling in FPU/VMX preemption tests
[ Upstream commit 9dbd592740 ]

The FPU & VMX preemption tests do not check for errors returned by the
low-level asm routines, preempt_fpu() / preempt_vsx() respectively.
That means any register corruption detected by the asm routines does not
result in a test failure.

Fix it by returning the return value of the asm routines from the
pthread child routines.

Fixes: e5ab8be68e ("selftests/powerpc: Test preservation of FPU and VMX regs across preemption")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231128132748.1990179-1-mpe@ellerman.id.au
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 14:52:32 -08:00
Muhammad Usama Anjum 80eb449f80 selftests: secretmem: floor the memory size to the multiple of page_size
[ Upstream commit 0aac13add2 ]

The "locked-in-memory size" limit per process can be non-multiple of
page_size.  The mmap() fails if we try to allocate locked-in-memory with
same size as the allowed limit if it isn't multiple of the page_size
because mmap() rounds off the memory size to be allocated to next multiple
of page_size.

Fix this by flooring the length to be allocated with mmap() to the
previous multiple of the page_size.

This was getting triggered on KernelCI regularly because of different
ulimit settings which wasn't multiple of the page_size.  Find logs
here: https://linux.kernelci.org/test/plan/id/657654bd8e81e654fae13532/
The bug in was present from the time test was first added.

Link: https://lkml.kernel.org/r/20231214101931.1155586-1-usama.anjum@collabora.com
Fixes: 76fe17ef58 ("secretmem: test: add basic selftest for memfd_secret(2)")
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Reported-by: "kernelci.org bot" <bot@kernelci.org>
Closes: https://linux.kernelci.org/test/plan/id/657654bd8e81e654fae13532/
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-15 18:51:21 +01:00
Ilpo Järvinen b60187f610 selftests/resctrl: Move _GNU_SOURCE define into Makefile
[ Upstream commit 3a1e4a91aa ]

_GNU_SOURCE is defined in resctrl.h. Defining _GNU_SOURCE has a large
impact on what gets defined when including headers either before or
after it. This can result in compile failures if .c file decides to
include a standard header file before resctrl.h.

It is safer to define _GNU_SOURCE in Makefile so it is always defined
regardless of in which order includes are done.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-12-08 08:48:04 +01:00
Shaopeng Tan 072c17d400 selftests/resctrl: Add missing SPDX license to Makefile
[ Upstream commit 68c4844985 ]

Add the missing SPDX(SPDX-License-Identifier) license header to
tools/testing/selftests/resctrl/Makefile.

Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Stable-dep-of: 3a1e4a91aa ("selftests/resctrl: Move _GNU_SOURCE define into Makefile")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-12-08 08:48:04 +01:00
Willem de Bruijn f4499f0fc1 selftests/net: ipsec: fix constant out of range
[ Upstream commit 0885598154 ]

Fix a small compiler warning.

nr_process must be a signed long: it is assigned a signed long by
strtol() and is compared against LONG_MIN and LONG_MAX.

ipsec.c:2280:65:
    error: result of comparison of constant -9223372036854775808
    with expression of type 'unsigned int' is always false
    [-Werror,-Wtautological-constant-out-of-range-compare]

  if ((errno == ERANGE && (nr_process == LONG_MAX || nr_process == LONG_MIN))

Fixes: bc2652b7ae ("selftest/net/xfrm: Add test for ipsec tunnel")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Dmitry Safonov <0x7f454c46@gmail.com>
Link: https://lore.kernel.org/r/20231124171645.1011043-2-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-12-08 08:48:03 +01:00
Ilpo Järvinen 28436d8092 selftests/resctrl: Reduce failures due to outliers in MBA/MBM tests
commit ef43c30858 upstream.

The initial value of 5% chosen for the maximum allowed percentage
difference between resctrl mbm value and IMC mbm value in

commit 06bd03a57f ("selftests/resctrl: Fix MBA/MBM results reporting
       format") was "randomly chosen value" (as admitted by the changelog).

When running tests in our lab across a large number platforms, 5%
difference upper bound for success seems a bit on the low side for the
MBA and MBM tests. Some platforms produce outliers that are slightly
above that, typically 6-7%, which leads MBA/MBM test frequently
failing.

Replace the "randomly chosen value" with a success bound that is based
on those measurements across large number of platforms by relaxing the
MBA/MBM success bound to 8%. The relaxed bound removes the failures due
the frequent outliers.

Fixed commit description style error during merge:
Shuah Khan <skhan@linuxfoundation.org>

Fixes: 06bd03a57f ("selftests/resctrl: Fix MBA/MBM results reporting format")
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-11-28 16:56:30 +00:00
Ilpo Järvinen 6ce63598a1 selftests/resctrl: Remove duplicate feature check from CMT test
commit 030b48fb2c upstream.

The test runner run_cmt_test() in resctrl_tests.c checks for CMT
feature and does not run cmt_resctrl_val() if CMT is not supported.
Then cmt_resctrl_val() also check is CMT is supported.

Remove the duplicated feature check for CMT from cmt_resctrl_val().

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-11-28 16:56:30 +00:00
zhujun2 9f2082067c selftests/efivarfs: create-read: fix a resource leak
[ Upstream commit 3f6f8a8c5e ]

The opened file should be closed in main(), otherwise resource
leak will occur that this problem was discovered by code reading

Signed-off-by: zhujun2 <zhujun2@cmss.chinamobile.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-28 16:56:17 +00:00
Hangbin Liu 866606826f selftests: pmtu.sh: fix result checking
[ Upstream commit 63e201916b ]

In the PMTU test, when all previous tests are skipped and the new test
passes, the exit code is set to 0. However, the current check mistakenly
treats this as an assignment, causing the check to pass every time.

Consequently, regardless of how many tests have failed, if the latest test
passes, the PMTU test will report a pass.

Fixes: 2a9d3716b8 ("selftests: pmtu.sh: improve the test result processing")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Po-Hsu Lin <po-hsu.lin@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:08:29 +01:00
Ilpo Järvinen b01b9dc548 selftests/resctrl: Ensure the benchmark commands fits to its array
[ Upstream commit 4a28c7665c ]

Benchmark command is copied into an array in the stack. The array is
BENCHMARK_ARGS items long but the command line could try to provide a
longer command. Argument size is also fixed by BENCHMARK_ARG_SIZE (63
bytes of space after fitting the terminating \0 character) and user
could have inputted argument longer than that.

Return error in case the benchmark command does not fit to the space
allocated for it.

Fixes: ecdbb911f2 ("selftests/resctrl: Add MBM test")
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: "Wieczor-Retman, Maciej" <maciej.wieczor-retman@intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:08:22 +01:00
Maciej Wieczor-Retman 2d2300fcf8 selftests/pidfd: Fix ksft print formats
[ Upstream commit 4d7f4e8158 ]

Compiling pidfd selftest after adding a __printf() attribute to
ksft_print_msg() and ksft_test_result_pass() exposes -Wformat warnings
in error_report(), test_pidfd_poll_exec_thread(),
child_poll_exec_test(), test_pidfd_poll_leader_exit_thread(),
child_poll_leader_exit_test().

The ksft_test_result_pass() in error_report() expects a string but
doesn't provide any argument after the format string. All the other
calls to ksft_print_msg() in the functions mentioned above have format
strings that don't match with other passed arguments.

Fix format specifiers so they match the passed variables.

Add a missing variable to ksft_test_result_pass() inside
error_report() so it matches other cases in the switch statement.

Fixes: 2def297ec7 ("pidfd: add tests for NSpid info in fdinfo")

Signed-off-by: Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:08:22 +01:00
Leon Hwang 8f7eef3a13 selftests/bpf: Correct map_fd to data_fd in tailcalls
[ Upstream commit 96daa98742 ]

Get and check data_fd. It should not check map_fd again.

Meanwhile, correct some 'return' to 'goto out'.

Thank the suggestion from Maciej in "bpf, x64: Fix tailcall infinite
loop"[0] discussions.

[0] https://lore.kernel.org/bpf/e496aef8-1f80-0f8e-dcdd-25a8c300319a@gmail.com/T/#m7d3b601066ba66400d436b7e7579b2df4a101033

Fixes: 79d49ba048 ("bpf, testing: Add various tail call test cases")
Fixes: 3b03791111 ("selftests/bpf: Add tailcall_bpf2bpf tests")
Fixes: 5e0b0a4c52 ("selftests/bpf: Test tail call counting with bpf2bpf and data on stack")
Signed-off-by: Leon Hwang <hffilwlqm@gmail.com>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Link: https://lore.kernel.org/r/20230906154256.95461-1-hffilwlqm@gmail.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:08:14 +01:00
Jakub Sitnicki 3eefb2fbf4 selftests/bpf: Test tail call counting with bpf2bpf and data on stack
[ Upstream commit 5e0b0a4c52 ]

Cover the case when tail call count needs to be passed from BPF function to
BPF function, and the caller has data on stack. Specifically when the size
of data allocated on BPF stack is not a multiple on 8.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220616162037.535469-3-jakub@cloudflare.com
Stable-dep-of: 96daa98742 ("selftests/bpf: Correct map_fd to data_fd in tailcalls")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:08:14 +01:00
Francis Laniel c8b6c2df1e selftests/ftrace: Add new test case which checks non unique symbol
commit 03b80ff802 upstream.

If name_show() is non unique, this test will try to install a kprobe on this
function which should fail returning EADDRNOTAVAIL.
On kernel where name_show() is not unique, this test is skipped.

Link: https://lore.kernel.org/all/20231020104250.9537-3-flaniel@linux.microsoft.com/

Cc: stable@vger.kernel.org
Signed-off-by: Francis Laniel <flaniel@linux.microsoft.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-10-25 11:59:03 +02:00
Juntong Deng aff3019b55 selftests/mm: fix awk usage in charge_reserved_hugetlb.sh and hugetlb_reparenting_test.sh that may cause error
[ Upstream commit bbe246f875 ]

According to the awk manual, the -e option does not need to be specified
in front of 'program' (unless you need to mix program-file).

The redundant -e option can cause error when users use awk tools other
than gawk (for example, mawk does not support the -e option).

Error Example:
awk: not an option: -e

Link: https://lkml.kernel.org/r/VI1P193MB075228810591AF2FDD7D42C599C3A@VI1P193MB0752.EURP193.PROD.OUTLOOK.COM
Signed-off-by: Juntong Deng <juntong.deng@outlook.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-25 11:58:58 +02:00
Ricardo B. Marliere 3db9b42070 selftests: fix dependency checker script
[ Upstream commit 5f9dd2e896 ]

This patch fixes inconsistencies in the parsing rules of the levels 1
and 2 of the kselftest_deps.sh.  It was added the levels 4 and 5 to
account for a few edge cases that are present in some tests, also some
minor identation styling have been fixed (s/    /\t/g).

Signed-off-by: Ricardo B. Marliere <rbmarliere@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:16 +02:00
Zheng Yejian b4874f72cf selftests/ftrace: Correctly enable event in instance-event.tc
[ Upstream commit f4e4ada586 ]

Function instance_set() expects to enable event 'sched_switch', so we
should set 1 to its 'enable' file.

Testcase passed after this patch:
  # ./ftracetest test.d/instances/instance-event.tc
  === Ftrace unit tests ===
  [1] Test creation and deletion of trace instances while setting an event
  [PASS]

  # of passed:  1
  # of failed:  0
  # of unresolved:  0
  # of untested:  0
  # of unsupported:  0
  # of xfailed:  0
  # of undefined(test bug):  0

Signed-off-by: Zheng Yejian <zhengyejian1@huawei.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:15 +02:00
Sabrina Dubroca 55629e6164 selftests: tls: swap the TX and RX sockets in some tests
[ Upstream commit c326ca9844 ]

tls.sendmsg_large and tls.sendmsg_multiple are trying to send through
the self->cfd socket (only configured with TLS_RX) and to receive through
the self->fd socket (only configured with TLS_TX), so they're not using
kTLS at all. Swap the sockets.

Fixes: 7f657d5bf5 ("selftests: tls: add selftests for TLS sockets")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:04 +02:00
Masami Hiramatsu (Google) f0fd24f1fa selftests: tracing: Fix to unmount tracefs for recovering environment
[ Upstream commit 7e021da80f ]

Fix to unmount the tracefs if the ftracetest mounted it for recovering
system environment. If the tracefs is already mounted, this does nothing.

Suggested-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/all/29fce076-746c-4650-8358-b4e0fa215cf7@sirena.org.uk/
Fixes: cbd965bde7 ("ftrace/selftests: Return the skip code when tracing directory not configured in kernel")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-09-23 11:10:01 +02:00
Björn Töpel aea3801c23 kselftest/runner.sh: Propagate SIGTERM to runner child
[ Upstream commit 9616cb34b0 ]

Timeouts in kselftest are done using the "timeout" command with the
"--foreground" option. Without the "foreground" option, it is not
possible for a user to cancel the runner using SIGINT, because the
signal is not propagated to timeout which is running in a different
process group. The "forground" options places the timeout in the same
process group as its parent, but only sends the SIGTERM (on timeout)
signal to the forked process. Unfortunately, this does not play nice
with all kselftests, e.g. "net:fcnal-test.sh", where the child
processes will linger because timeout does not send SIGTERM to the
group.

Some users have noted these hangs [1].

Fix this by nesting the timeout with an additional timeout without the
foreground option.

Link: https://lore.kernel.org/all/7650b2eb-0aee-a2b0-2e64-c9bc63210f67@alu.unizg.hr/ # [1]
Fixes: 651e0d8814 ("kselftest/runner: allow to properly deliver signals to tests")
Signed-off-by: Björn Töpel <bjorn@rivosinc.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-09-19 12:23:03 +02:00
Yipeng Zou 41c40d8483 selftests/bpf: Clean up fmod_ret in bench_rename test script
[ Upstream commit 83a89c4b6a ]

Running the bench_rename test script, the following error occurs:

  # ./benchs/run_bench_rename.sh
  base      :    0.819 ± 0.012M/s
  kprobe    :    0.538 ± 0.009M/s
  kretprobe :    0.503 ± 0.004M/s
  rawtp     :    0.779 ± 0.020M/s
  fentry    :    0.726 ± 0.007M/s
  fexit     :    0.691 ± 0.007M/s
  benchmark 'rename-fmodret' not found

The bench_rename_fmodret has been removed in commit b000def2e0
("selftests: Remove fmod_ret from test_overhead"), thus remove it
from the runners in the test script.

Fixes: b000def2e0 ("selftests: Remove fmod_ret from test_overhead")
Signed-off-by: Yipeng Zou <zouyipeng@huawei.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230814030727.3010390-1-zouyipeng@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-09-19 12:22:33 +02:00
Alan Maguire e3c4a6b073 selftests/bpf: fix static assert compilation issue for test_cls_*.c
[ Upstream commit 416c6d0124 ]

commit bdeeed3498 ("libbpf: fix offsetof() and container_of() to work with CO-RE")

...was backported to stable trees such as 5.15. The problem is that with older
LLVM/clang (14/15) - which is often used for older kernels - we see compilation
failures in BPF selftests now:

In file included from progs/test_cls_redirect_subprogs.c:2:
progs/test_cls_redirect.c:90:2: error: static assertion expression is not an integral constant expression
        sizeof(flow_ports_t) !=
        ^~~~~~~~~~~~~~~~~~~~~~~
progs/test_cls_redirect.c:91:3: note: cast that performs the conversions of a reinterpret_cast is not allowed in a constant expression
                offsetofend(struct bpf_sock_tuple, ipv4.dport) -
                ^
progs/test_cls_redirect.c:32:3: note: expanded from macro 'offsetofend'
        (offsetof(TYPE, MEMBER) + sizeof((((TYPE *)0)->MEMBER)))
         ^
tools/testing/selftests/bpf/tools/include/bpf/bpf_helpers.h:86:33: note: expanded from macro 'offsetof'
                                 ^
In file included from progs/test_cls_redirect_subprogs.c:2:
progs/test_cls_redirect.c:95:2: error: static assertion expression is not an integral constant expression
        sizeof(flow_ports_t) !=
        ^~~~~~~~~~~~~~~~~~~~~~~
progs/test_cls_redirect.c:96:3: note: cast that performs the conversions of a reinterpret_cast is not allowed in a constant expression
                offsetofend(struct bpf_sock_tuple, ipv6.dport) -
                ^
progs/test_cls_redirect.c:32:3: note: expanded from macro 'offsetofend'
        (offsetof(TYPE, MEMBER) + sizeof((((TYPE *)0)->MEMBER)))
         ^
tools/testing/selftests/bpf/tools/include/bpf/bpf_helpers.h:86:33: note: expanded from macro 'offsetof'
                                 ^
2 errors generated.
make: *** [Makefile:594: tools/testing/selftests/bpf/test_cls_redirect_subprogs.bpf.o] Error 1

The problem is the new offsetof() does not play nice with static asserts.
Given that the context is a static assert (and CO-RE relocation is not
needed at compile time), offsetof() usage can be replaced by restoring
the original offsetof() definition as __builtin_offsetof().

Fixes: bdeeed3498 ("libbpf: fix offsetof() and container_of() to work with CO-RE")
Reported-by: Colm Harrington <colm.harrington@oracle.com>
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Tested-by: Yipeng Zou <zouyipeng@huawei.com>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20230802073906.3197480-1-alan.maguire@oracle.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-09-19 12:22:33 +02:00
Nysal Jan K.A 208383d685 selftests/futex: Order calls to futex_lock_pi
[ Upstream commit fbf4dec702 ]

Observed occassional failures in the futex_wait_timeout test:

ok 1 futex_wait relative succeeds
ok 2 futex_wait_bitset realtime succeeds
ok 3 futex_wait_bitset monotonic succeeds
ok 4 futex_wait_requeue_pi realtime succeeds
ok 5 futex_wait_requeue_pi monotonic succeeds
not ok 6 futex_lock_pi realtime returned 0
......

The test expects the child thread to complete some steps before
the parent thread gets to run. There is an implicit expectation
of the order of invocation of futex_lock_pi between the child thread
and the parent thread. Make this order explicit. If the order is
not met, the futex_lock_pi call in the parent thread succeeds and
will not timeout.

Fixes: f4addd54b1 ("selftests: futex: Expand timeout test")
Signed-off-by: Nysal Jan K.A <nysal@linux.ibm.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-09-19 12:22:31 +02:00
Ilpo Järvinen 3af6f77e80 selftests/resctrl: Close perf value read fd on errors
[ Upstream commit 51a0c3b7f0 ]

Perf event fd (fd_lm) is not closed when run_fill_buf() returns error.

Close fd_lm only in cat_val() to make it easier to track it is always
closed.

Fixes: 790bf585b0 ("selftests/resctrl: Add Cache Allocation Technology (CAT) selftest")
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tested-by: Babu Moger <babu.moger@amd.com>
Tested-by: Shaopeng Tan (Fujitsu) <tan.shaopeng@fujitsu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-09-19 12:22:31 +02:00
Ilpo Järvinen 4505ad996b selftests/resctrl: Unmount resctrl FS if child fails to run benchmark
[ Upstream commit f99e413eb5 ]

A child calls PARENT_EXIT() when it fails to run a benchmark to kill
the parent process. PARENT_EXIT() lacks unmount for the resctrl FS and
the parent won't be there to unmount it either after it gets killed.

Add the resctrl FS unmount also to PARENT_EXIT().

Fixes: 591a6e8588 ("selftests/resctrl: Add basic resctrl file system operations and data")
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Tested-by: Babu Moger <babu.moger@amd.com>
Tested-by: Shaopeng Tan (Fujitsu) <tan.shaopeng@fujitsu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-09-19 12:22:31 +02:00