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When running gup_benchmark test the following output states that
the config options is missing.
$ sudo ./gup_benchmark
open: No such file or directory
$ sudo strace -e trace=file ./gup_benchmark 2>&1 | tail -3
openat(AT_FDCWD, "/sys/kernel/debug/gup_benchmark", O_RDWR) = -1 ENOENT
(No such file or directory)
open: No such file or directory
+++ exited with 1 +++
Fix it by adding config option fragment.
Fixes: 64c349f4ae78 ("mm: add infrastructure for get_user_pages_fast() benchmarking")
Signed-off-by: Anatoly Pugachev <matorola@gmail.com>
CC: Jiri Kosina <trivial@kernel.org>
CC: Shuah Khan <shuah@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add a --json flag, which when specified generates JSON formatted test
results conforming to the KernelCI API test_group spec[1]. The user can
use the new flag to specify a filename to print the json formatted
results to.
Link[1]: https://api.kernelci.org/schema-test-group.html#post
Signed-off-by: Heidi Fahim <heidifahim@google.com>
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Currently kunit_tool does not work correctly when executed from a path
outside of the kernel tree, so make sure that the current working
directory is correct and the kunit_dir is properly initialized before
running.
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
selftests can be built from the toplevel kernel makefile (e.g. make
kselftest-all) or directly (make -C tools/testing/selftests all).
The toplevel kernel makefile explicitly disables implicit rules with
"MAKEFLAGS += -rR", which is passed to tools/testing/selftests. Some
selftest makefiles require implicit make rules, which is why
commit 67d8712dcc70 ("selftests: Fix build failures when invoked from
kselftest target") reenables implicit rules by clearing MAKEFLAGS if
MAKELEVEL=1.
So far so good. However, if the toplevel makefile is called from an
outer makefile then MAKELEVEL will be elevated, which breaks the
MAKELEVEL equality test.
Example wrapped makefile error:
$ cat ~/Makefile
all:
$(MAKE) defconfig
$(MAKE) kselftest-all
$ make -sf ~/Makefile
futex_wait_timeout.c /src/tools/testing/selftests/kselftest_harness.h /src/tools/testing/selftests/kselftest.h ../include/futextest.h ../include/atomic.h ../include/logging.h -lpthread -lrt -o /src/tools/testing/selftests/futex/functional/futex_wait_timeout
make[4]: futex_wait_timeout.c: Command not found
Rather than checking $(MAKELEVEL), check for $(LINK.c), which is a more
direct side effect of "make -R". This enables arbitrary makefile
nesting.
Signed-off-by: Greg Thelen <gthelen@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Technically the bpf programs can sleep while attached to bpf_lsm_file_mprotect,
but such programs need to access user memory. So they're in might_fault()
category. Which means they cannot be called from file_mprotect lsm hook that
takes write lock on mm->mmap_lock.
Adjust the test accordingly.
Also add might_fault() to __bpf_prog_enter_sleepable() to catch such deadlocks early.
Fixes: 1e6c62a88215 ("bpf: Introduce sleepable BPF programs")
Fixes: e68a144547fc ("selftests/bpf: Add sleepable tests")
Reported-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200831201651.82447-1-alexei.starovoitov@gmail.com
If top make invocation uses -j4 or larger, this patch reduces
"make headers_install" subtask run time from 30 to 7 seconds.
CC: Shuah Khan <shuah@kernel.org>
CC: Shuah Khan <skhan@linuxfoundation.org>
CC: linux-kselftest@vger.kernel.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for net:
1) Do not delete clash entries on reply, let them expire instead,
from Florian Westphal.
2) Do not report EAGAIN to nfnetlink, otherwise this enters a busy loop.
Update nfnetlink_unicast() to translate EAGAIN to ENOBUFS.
3) Remove repeated words in code comments, from Randy Dunlap.
4) Several patches for the flowtable selftests, from Fabian Frederick.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Revert our removal of PROT_SAO, at least one user expressed an interest in using
it on Power9. Instead don't allow it to be used in guests unless enabled
explicitly at compile time.
A fix for a crash introduced by a recent change to FP handling.
Revert a change to our idle code that left Power10 with no idle support.
One minor fix for the new scv system call path to set PPR.
Fix a crash in our "generic" PMU if branch stack events were enabled.
A fix for the IMC PMU, to correctly identify host kernel samples.
The ADB_PMU powermac code was found to be incompatible with VMAP_STACK, so make
them incompatible in Kconfig until the code can be fixed.
A build fix in drivers/video/fbdev/controlfb.c, and a documentation fix.
Thanks to:
Alexey Kardashevskiy, Athira Rajeev, Christophe Leroy, Giuseppe Sacco,
Madhavan Srinivasan, Milton Miller, Nicholas Piggin, Pratik Rajesh Sampat,
Randy Dunlap, Shawn Anastasio, Vaidyanathan Srinivasan.
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Merge tag 'powerpc-5.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Revert our removal of PROT_SAO, at least one user expressed an
interest in using it on Power9. Instead don't allow it to be used in
guests unless enabled explicitly at compile time.
- A fix for a crash introduced by a recent change to FP handling.
- Revert a change to our idle code that left Power10 with no idle
support.
- One minor fix for the new scv system call path to set PPR.
- Fix a crash in our "generic" PMU if branch stack events were enabled.
- A fix for the IMC PMU, to correctly identify host kernel samples.
- The ADB_PMU powermac code was found to be incompatible with
VMAP_STACK, so make them incompatible in Kconfig until the code can
be fixed.
- A build fix in drivers/video/fbdev/controlfb.c, and a documentation
fix.
Thanks to Alexey Kardashevskiy, Athira Rajeev, Christophe Leroy,
Giuseppe Sacco, Madhavan Srinivasan, Milton Miller, Nicholas Piggin,
Pratik Rajesh Sampat, Randy Dunlap, Shawn Anastasio, Vaidyanathan
Srinivasan.
* tag 'powerpc-5.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/32s: Disable VMAP stack which CONFIG_ADB_PMU
Revert "powerpc/powernv/idle: Replace CPU feature check with PVR check"
powerpc/perf: Fix reading of MSR[HV/PR] bits in trace-imc
powerpc/perf: Fix crashes with generic_compat_pmu & BHRB
powerpc/64s: Fix crash in load_fp_state() due to fpexc_mode
powerpc/64s: scv entry should set PPR
Documentation/powerpc: fix malformed table in syscall64-abi
video: fbdev: controlfb: Fix build for COMPILE_TEST=y && PPC_PMAC=n
selftests/powerpc: Update PROT_SAO test to skip ISA 3.1
powerpc/64s: Disallow PROT_SAO in LPARs by default
Revert "powerpc/64s: Remove PROT_SAO support"
Avoid bad command arguments.
Based on tools/power/cpupower/bench/cpufreq-bench_plot.sh
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Fix some shellcheck SC2181 warnings:
"Check exit code directly with e.g. 'if mycmd;', not indirectly with
$?." as suggested by Stefano Brivio.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
'who' variable was not used in make_file()
Problem found using Shellcheck
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
exit script with comments when parameters are wrong during address
addition. No need for a message when trying to change MTU with lower
values: output is self-explanatory.
Use short testing sequence to avoid shellcheck warnings
(suggested by Stefano Brivio).
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
nft_flowtable.sh is made for bash not sh.
Also give values which not return "RTNETLINK answers: Invalid argument"
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This patch tests the inner map size can be different
for reuseport_sockarray but has to be the same for
arraymap. A new subtest "diff_size" is added for this.
The existing test is moved to a subtest "lookup_update".
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200828011819.1970825-1-kafai@fb.com
When stdout output from the selftests tool 'test_maps' gets redirected
into e.g file or pipe, then the output lines increase a lot (from 21
to 33949 lines). This is caused by the printf that happens before the
fork() call, and there are user-space buffered printf data that seems
to be duplicated into the forked process.
To fix this fflush() stdout before the fork loop in __run_parallel().
Fixes: 1a97cf1fe503 ("selftests/bpf: speedup test_maps")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/159842985651.1050885.2154399297503372406.stgit@firesoul
Add tests for the new 'nosymfollow' mount option. We test to make sure
that symlink traversal fails with ELOOP when 'nosymfollow' is set, but
that readlink(2) and realpath(3) still work as expected. We also verify
that statfs(2) correctly returns ST_NOSYMFOLLOW when we are mounted with
the 'nosymfollow' option.
Signed-off-by: Ross Zwisler <zwisler@google.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
check_result() uses "comm" to check expected results of selftests output
in dmesg. Everything works fine if timestamps in dmesg are unique. If
not, like in this example
[ 86.844422] test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state
[ 86.844422] livepatch: 'test_klp_callbacks_demo': starting unpatching transition
, "comm" fails with "comm: file 2 is not in sorted order". Suppress the
order checking with --nocheck-order option.
Fixes: 2f3f651f3756 ("selftests/livepatch: Use "comm" instead of "diff" for dmesg")
Signed-off-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Test that an IPv6 route can not use a nexthop group with mixed IPv4 and
IPv6 nexthops, but can use it after replacing the IPv4 nexthops with
IPv6 nexthops.
Output without previous patch:
# ./fib_nexthops.sh -t ipv6_fcnal_runtime
IPv6 functional runtime
-----------------------
TEST: Route add [ OK ]
TEST: Route delete [ OK ]
TEST: Ping with nexthop [ OK ]
TEST: Ping - multipath [ OK ]
TEST: Ping - blackhole [ OK ]
TEST: Ping - blackhole replaced with gateway [ OK ]
TEST: Ping - gateway replaced by blackhole [ OK ]
TEST: Ping - group with blackhole [ OK ]
TEST: Ping - group blackhole replaced with gateways [ OK ]
TEST: IPv6 route with device only nexthop [ OK ]
TEST: IPv6 multipath route with nexthop mix - dev only + gw [ OK ]
TEST: IPv6 route can not have a v4 gateway [ OK ]
TEST: Nexthop replace - v6 route, v4 nexthop [ OK ]
TEST: Nexthop replace of group entry - v6 route, v4 nexthop [ OK ]
TEST: IPv6 route can not have a group with v4 and v6 gateways [ OK ]
TEST: IPv6 route can not have a group with v4 and v6 gateways [ OK ]
TEST: IPv6 route using a group after removing v4 gateways [ OK ]
TEST: IPv6 route can not have a group with v4 and v6 gateways [ OK ]
TEST: IPv6 route can not have a group with v4 and v6 gateways [ OK ]
TEST: IPv6 route using a group after replacing v4 gateways [FAIL]
TEST: Nexthop with default route and rpfilter [ OK ]
TEST: Nexthop with multipath default route and rpfilter [ OK ]
Tests passed: 21
Tests failed: 1
Output with previous patch:
# ./fib_nexthops.sh -t ipv6_fcnal_runtime
IPv6 functional runtime
-----------------------
TEST: Route add [ OK ]
TEST: Route delete [ OK ]
TEST: Ping with nexthop [ OK ]
TEST: Ping - multipath [ OK ]
TEST: Ping - blackhole [ OK ]
TEST: Ping - blackhole replaced with gateway [ OK ]
TEST: Ping - gateway replaced by blackhole [ OK ]
TEST: Ping - group with blackhole [ OK ]
TEST: Ping - group blackhole replaced with gateways [ OK ]
TEST: IPv6 route with device only nexthop [ OK ]
TEST: IPv6 multipath route with nexthop mix - dev only + gw [ OK ]
TEST: IPv6 route can not have a v4 gateway [ OK ]
TEST: Nexthop replace - v6 route, v4 nexthop [ OK ]
TEST: Nexthop replace of group entry - v6 route, v4 nexthop [ OK ]
TEST: IPv6 route can not have a group with v4 and v6 gateways [ OK ]
TEST: IPv6 route can not have a group with v4 and v6 gateways [ OK ]
TEST: IPv6 route using a group after removing v4 gateways [ OK ]
TEST: IPv6 route can not have a group with v4 and v6 gateways [ OK ]
TEST: IPv6 route can not have a group with v4 and v6 gateways [ OK ]
TEST: IPv6 route using a group after replacing v4 gateways [ OK ]
TEST: Nexthop with default route and rpfilter [ OK ]
TEST: Nexthop with multipath default route and rpfilter [ OK ]
Tests passed: 22
Tests failed: 0
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Test that an IPv6 route can not use a nexthop group with mixed IPv4 and
IPv6 nexthops, but can use it after deleting the IPv4 nexthops.
Output without previous patch:
# ./fib_nexthops.sh -t ipv6_fcnal_runtime
IPv6 functional runtime
-----------------------
TEST: Route add [ OK ]
TEST: Route delete [ OK ]
TEST: Ping with nexthop [ OK ]
TEST: Ping - multipath [ OK ]
TEST: Ping - blackhole [ OK ]
TEST: Ping - blackhole replaced with gateway [ OK ]
TEST: Ping - gateway replaced by blackhole [ OK ]
TEST: Ping - group with blackhole [ OK ]
TEST: Ping - group blackhole replaced with gateways [ OK ]
TEST: IPv6 route with device only nexthop [ OK ]
TEST: IPv6 multipath route with nexthop mix - dev only + gw [ OK ]
TEST: IPv6 route can not have a v4 gateway [ OK ]
TEST: Nexthop replace - v6 route, v4 nexthop [ OK ]
TEST: Nexthop replace of group entry - v6 route, v4 nexthop [ OK ]
TEST: IPv6 route can not have a group with v4 and v6 gateways [ OK ]
TEST: IPv6 route can not have a group with v4 and v6 gateways [ OK ]
TEST: IPv6 route using a group after deleting v4 gateways [FAIL]
TEST: Nexthop with default route and rpfilter [ OK ]
TEST: Nexthop with multipath default route and rpfilter [ OK ]
Tests passed: 18
Tests failed: 1
Output with previous patch:
bash-5.0# ./fib_nexthops.sh -t ipv6_fcnal_runtime
IPv6 functional runtime
-----------------------
TEST: Route add [ OK ]
TEST: Route delete [ OK ]
TEST: Ping with nexthop [ OK ]
TEST: Ping - multipath [ OK ]
TEST: Ping - blackhole [ OK ]
TEST: Ping - blackhole replaced with gateway [ OK ]
TEST: Ping - gateway replaced by blackhole [ OK ]
TEST: Ping - group with blackhole [ OK ]
TEST: Ping - group blackhole replaced with gateways [ OK ]
TEST: IPv6 route with device only nexthop [ OK ]
TEST: IPv6 multipath route with nexthop mix - dev only + gw [ OK ]
TEST: IPv6 route can not have a v4 gateway [ OK ]
TEST: Nexthop replace - v6 route, v4 nexthop [ OK ]
TEST: Nexthop replace of group entry - v6 route, v4 nexthop [ OK ]
TEST: IPv6 route can not have a group with v4 and v6 gateways [ OK ]
TEST: IPv6 route can not have a group with v4 and v6 gateways [ OK ]
TEST: IPv6 route using a group after deleting v4 gateways [ OK ]
TEST: Nexthop with default route and rpfilter [ OK ]
TEST: Nexthop with multipath default route and rpfilter [ OK ]
Tests passed: 19
Tests failed: 0
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This adds further tests to ensure access permissions and restrictions
are applied properly for some map types such as sock-map.
It also adds another negative tests to assert static functions cannot be
replaced. In the 'unreliable' mode it still fails with error 'tracing progs
cannot use bpf_spin_lock yet' with the change in the verifier
Signed-off-by: Udip Pant <udippant@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200825232003.2877030-5-udippant@fb.com
This adds test to enforce same check for the return code for the extended prog
as it is enforced for the target program. It asserts failure for a
return code, which is permitted without the patch in this series, while
it is restricted after the application of this patch.
Signed-off-by: Udip Pant <udippant@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200825232003.2877030-4-udippant@fb.com
This adds a selftest that tests the behavior when a freplace target program
attempts to make a write access on a packet. The expectation is that the read or write
access is granted based on the program type of the linked program and
not itself (which is of type, for e.g., BPF_PROG_TYPE_EXT).
This test fails without the associated patch on the verifier.
Signed-off-by: Udip Pant <udippant@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200825232003.2877030-3-udippant@fb.com
Alexei reported compile breakage on newer systems with
following error:
In file included from /usr/include/fcntl.h:290:0,
4814 from ./test_progs.h:29,
4815 from
.../bpf-next/tools/testing/selftests/bpf/prog_tests/d_path.c:3:
4816In function ‘open’,
4817 inlined from ‘trigger_fstat_events’ at
.../bpf-next/tools/testing/selftests/bpf/prog_tests/d_path.c:50:10,
4818 inlined from ‘test_d_path’ at
.../bpf-next/tools/testing/selftests/bpf/prog_tests/d_path.c:119:6:
4819/usr/include/x86_64-linux-gnu/bits/fcntl2.h:50:4: error: call to
‘__open_missing_mode’ declared with attribute error: open with O_CREAT
or O_TMPFILE in second argument needs 3 arguments
4820 __open_missing_mode ();
4821 ^~~~~~~~~~~~~~~~~~~~~~
We're missing permission bits as 3rd argument
for open call with O_CREAT flag specified.
Fixes: e4d1af4b16f8 ("selftests/bpf: Add test for d_path helper")
Reported-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200826101845.747617-1-jolsa@kernel.org
Adding test to for sets resolve_btfids. We're checking that
testing set gets properly resolved and sorted.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200825192124.710397-15-jolsa@kernel.org
Adding test for d_path helper which is pretty much
copied from Wenbo Zhang's test for bpf_get_fd_path,
which never made it in.
The test is doing fstat/close on several fd types,
and verifies we got the d_path helper working on
kernel probes for vfs_getattr/filp_close functions.
Original-patch-by: Wenbo Zhang <ethercflow@gmail.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200825192124.710397-14-jolsa@kernel.org
Adding verifier test for attaching tracing program and
calling d_path helper from within and testing that it's
allowed for dentry_open function and denied for 'd_path'
function with appropriate error.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200825192124.710397-13-jolsa@kernel.org
inode_local_storage:
* Hook to the file_open and inode_unlink LSM hooks.
* Create and unlink a temporary file.
* Store some information in the inode's bpf_local_storage during
file_open.
* Verify that this information exists when the file is unlinked.
sk_local_storage:
* Hook to the socket_post_create and socket_bind LSM hooks.
* Open and bind a socket and set the sk_storage in the
socket_post_create hook using the start_server helper.
* Verify if the information is set in the socket_bind hook.
Signed-off-by: KP Singh <kpsingh@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200825182919.1118197-8-kpsingh@chromium.org
A purely mechanical change to split the renaming from the actual
generalization.
Flags/consts:
SK_STORAGE_CREATE_FLAG_MASK BPF_LOCAL_STORAGE_CREATE_FLAG_MASK
BPF_SK_STORAGE_CACHE_SIZE BPF_LOCAL_STORAGE_CACHE_SIZE
MAX_VALUE_SIZE BPF_LOCAL_STORAGE_MAX_VALUE_SIZE
Structs:
bucket bpf_local_storage_map_bucket
bpf_sk_storage_map bpf_local_storage_map
bpf_sk_storage_data bpf_local_storage_data
bpf_sk_storage_elem bpf_local_storage_elem
bpf_sk_storage bpf_local_storage
The "sk" member in bpf_local_storage is also updated to "owner"
in preparation for changing the type to void * in a subsequent patch.
Functions:
selem_linked_to_sk selem_linked_to_storage
selem_alloc bpf_selem_alloc
__selem_unlink_sk bpf_selem_unlink_storage_nolock
__selem_link_sk bpf_selem_link_storage_nolock
selem_unlink_sk __bpf_selem_unlink_storage
sk_storage_update bpf_local_storage_update
__sk_storage_lookup bpf_local_storage_lookup
bpf_sk_storage_map_free bpf_local_storage_map_free
bpf_sk_storage_map_alloc bpf_local_storage_map_alloc
bpf_sk_storage_map_alloc_check bpf_local_storage_map_alloc_check
bpf_sk_storage_map_check_btf bpf_local_storage_map_check_btf
Signed-off-by: KP Singh <kpsingh@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20200825182919.1118197-2-kpsingh@chromium.org
Commit 643e7233aa94 ("selftests/bpf: Test_progs option for getting number of
tests") introduced ability to getting number of tests, which is targeted
towards scripting. As demonstrate in the commit the number can be use as a
shell variable for further scripting.
The test_progs program support "flavor", which is detected by the binary
have a "-flavor" in the executable name. One example is test_progs-no_alu32,
which load bpf-progs compiled with disabled alu32, located in dir 'no_alu32/'.
The problem is that invoking a "flavor" binary prints to stdout e.g.:
"Switching to flavor 'no_alu32' subdirectory..."
Thus, intermixing with the number of tests, making it unusable for scripting.
Fix the issue by only printing "flavor" info when verbose -v option is used.
Fixes: 643e7233aa94 ("selftests/bpf: Test_progs option for getting number of tests")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/159827024012.923543.7104106594870150597.stgit@firesoul
This commit adds a "--gdb" parameter to kvm.sh, which causes
"CONFIG_DEBUG_INFO=y" to be added to the Kconfig options, "nokaslr"
to be added to the boot parameters, and "-s -S" to be added to the qemu
arguments. Furthermore, the scripting prints messages telling the user
how to start up gdb for the run in question.
Because of the interactive nature of gdb sessions, only one "--configs"
scenario is permitted when "--gdb" is specified. For most torture types,
this means that a "--configs" argument is required, and that argument
must specify the single scenario of interest.
The usual cautions about breakpoints and timing apply, for example,
staring at your gdb prompt for too long will likely get you many
complaints, including RCU CPU stall warnings. Omar Sandoval further
suggests using gdb's "hbreak" command instead of the "break" command on
systems supporting hardware breakpoints, and further using the "commands"
option because the resulting non-interactive breakpoints are less likely
to get you RCU CPU stall warnings.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit adds a --help argument (along with its synonym -h) to display
the help text. While in the area, this commit also updates the help text.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Currently, the CONFIG_PROVE_RCU_LIST=y case is untested. This commit
therefore adds CONFIG_PROVE_RCU_LIST=y to rcutorture's TREE05 scenario.
Cc: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
Cc: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
The rcu-test-image.txt documentation covers a very uncommon case where
a real userspace environment is required. However, someone reading this
document might reasonably conclude that this is in fact a prerequisite.
In addition, the initrd.txt file mentions dracut, which is no longer used.
This commit therefore provides the needed updates.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.
Deterministic algorithm:
For each file:
If not .svg:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit further avoids conflation of rcuperf with the kernel's perf
feature by renaming kernel/rcu/rcuperf.c to kernel/rcu/rcuscale.c, and
also by similarly renaming the functions and variables inside this file.
This has the side effect of changing the names of the kernel boot
parameters, so kernel-parameters.txt and ver_functions.sh are also
updated. The rcutorture --torture type was also updated from rcuperf
to rcuscale.
[ paulmck: Fix bugs located by Stephen Rothwell. ]
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Currently, parse-torture.sh looks at the fifth field of torture-test
console output for the version number. This works fine for rcutorture,
but not for scftorture, which lacks the pointer field. This commit
therefore adjusts matching lines so that the parse-console.sh awk script
always sees the version number as the first field in the lines passed
to it.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Currently, the test takes about 626 seconds to complete because of an
inefficient use of the device's TCAM. Reduce the runtime to 202 seconds
by inserting all the flower filters with the same preference and mask,
but with a different key.
In particular, this reduces the deletion of the qdisc (which triggers
the deletion of all the filters) from 66 seconds to 0.2 seconds. This
prevents various netlink requests from user space applications (e.g.,
systemd-networkd) from timing-out because RTNL is not held for too long
anymore.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, mausezahn delay parameter in mirror_test() is specified with
'ms' units.
mausezahn versions before 0.6.5 interpret 'ms' as seconds and therefore
the tests that use mirror_test() take a very long time to complete.
Resolve this by specifying 'msec' units.
Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The current combination of rate and burst size does not adhere to
Spectrum-{2,3} limitation which states that the minimum burst size
should be 40% of the rate.
Increase the burst size in order to honor above mentioned limitation and
avoid intermittent failures of this test case on Spectrum-{2,3}.
Remove the first sub-test case as the variation in number of received
packets is simply too large to reliably test it.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The current combination of rate and burst size does not adhere to
Spectrum-{2,3} limitation which states that the minimum burst size
should be 40% of the rate.
Increase the burst size in order to honor above mentioned limitation and
avoid intermittent failures of this test case on Spectrum-{2,3}.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
On Spectrum-{2,3} the required accuracy is +/-10%.
Align the test to this requirement so that it can reliably pass on these
platforms.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Address review by Yonghong, to bring the new tests in line with the
usual code style.
Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20200824084523.13104-1-lmb@cloudflare.com
