Commit ddbd60c779b4 ("kunit: use --build_dir=.kunit as default") changed
the default --build_dir, which had the side effect of making
`.kunitconfig` move to `.kunit/.kunitconfig`.
However, the first few lines of kunit/start.rst never got updated, oops.
Fix this by telling people to run kunit.py first, which will
automatically generate the .kunit directory and .kunitconfig file, and
then edit the file manually as desired.
Reported-by: Yifan Yuan <alpc_metic(a)live.com>
Signed-off-by: Daniel Latypov <dlatypov(a)google.com>
---
Documentation/dev-tools/kunit/start.rst | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/Documentation/dev-tools/kunit/start.rst b/Documentation/dev-tools/kunit/start.rst
index 1e00f9226f74..65f4ef6c1f4c 100644
--- a/Documentation/dev-tools/kunit/start.rst
+++ b/Documentation/dev-tools/kunit/start.rst
@@ -31,14 +31,15 @@ This file essentially contains the regular Kernel config, with the specific
test targets as well. The ``.kunitconfig`` should also contain any other config
options required by the tests.
-A good starting point for a ``.kunitconfig`` is the KUnit defconfig:
+If you run KUnit, it'll generate one automatically for you.
.. code-block:: bash
cd $PATH_TO_LINUX_REPO
- cp tools/testing/kunit/configs/default.config .kunitconfig
+ ./tools/testing/kunit/kunit.py run
+ cat .kunit/.kunitconfig
-You can then add any other Kconfig options you wish, e.g.:
+You can then edit that file to add any other Kconfig options you wish, e.g.:
.. code-block:: none
base-commit: 52a5d80a2225e2d0b2a8f4656b76aead2a443b2a
--
2.33.1.1089.g2158813163f-goog
Building selftests/exec with clang, makes clang warn about the
following:
clang -Wall -Wno-nonnull -D_GNU_SOURCE -Wl,-z,max-page-size=0x200000 -pie -static load_address.c -o kselftest/exec/load_address_2097152
clang: warning: argument unused during compilation: '-pie' [-Wunused-command-line-argument]
Commit 4d1cd3b2c5c1 ("tools/testing/selftests/exec: fix link error")
tried to solve the issue, but when fixing the link error by adding '-static', the effect was that no pie binary was created, which makes the test case comletely pointless.
The gcc documentation states:
'-pie'
Produce a dynamically linked position independent executable on
targets that support it. For predictable results, you must also
specify the same set of options used for compilation ('-fpie',
'-fPIE', or model suboptions) when you specify this linker option.
Add '-fPIE' to CFLAGS.
Cc: stable(a)vger.kernel.org # v5.10+
Fixes: 4d1cd3b2c5c1 ("tools/testing/selftests/exec: fix link error")
Signed-off-by: Anders Roxell <anders.roxell(a)linaro.org>
---
tools/testing/selftests/exec/Makefile | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/exec/Makefile b/tools/testing/selftests/exec/Makefile
index dd61118df66e..ed2c171ac083 100644
--- a/tools/testing/selftests/exec/Makefile
+++ b/tools/testing/selftests/exec/Makefile
@@ -1,5 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
-CFLAGS = -Wall
+CFLAGS = -fPIE
+CFLAGS += -Wall
CFLAGS += -Wno-nonnull
CFLAGS += -D_GNU_SOURCE
@@ -28,8 +29,8 @@ $(OUTPUT)/execveat.denatured: $(OUTPUT)/execveat
cp $< $@
chmod -x $@
$(OUTPUT)/load_address_4096: load_address.c
- $(CC) $(CFLAGS) $(LDFLAGS) -Wl,-z,max-page-size=0x1000 -pie -static $< -o $@
+ $(CC) $(CFLAGS) $(LDFLAGS) -Wl,-z,max-page-size=0x1000 -pie $< -o $@
$(OUTPUT)/load_address_2097152: load_address.c
- $(CC) $(CFLAGS) $(LDFLAGS) -Wl,-z,max-page-size=0x200000 -pie -static $< -o $@
+ $(CC) $(CFLAGS) $(LDFLAGS) -Wl,-z,max-page-size=0x200000 -pie $< -o $@
$(OUTPUT)/load_address_16777216: load_address.c
- $(CC) $(CFLAGS) $(LDFLAGS) -Wl,-z,max-page-size=0x1000000 -pie -static $< -o $@
+ $(CC) $(CFLAGS) $(LDFLAGS) -Wl,-z,max-page-size=0x1000000 -pie $< -o $@
--
2.33.0
Hi,
This expands the seccomp selftests slightly to add additional debug
reporting detail and a new "immediate fatal SIGSYS under tracing" test.
I expect to be taking these via my seccomp tree.
Thanks,
-Kees
Kees Cook (2):
selftests/seccomp: Stop USER_NOTIF test if kcmp() fails
selftests/seccomp: Report event mismatches more clearly
tools/testing/selftests/seccomp/seccomp_bpf.c | 56 +++++++++++++++++--
1 file changed, 50 insertions(+), 6 deletions(-)
--
2.30.2
This is a follow up to my v7 series of fixes for the zram driver [0]
which ended up uncovering a generic deadlock issue with sysfs and module
removal. I've reported this issue and proposed a few patches first since
March 2021 [1]. At the end of this email you will find an itemized list
of changes since that v1 series, you can also find these changes on my
branch 20210927-sysfs-generic-deadlock-fix [4] which is based on
linux-next tag next-20210927.
Just a heads up, I'm goin on vacation in two days, won't be back until
Monday October 11th.
On this v8 I incorporate feedback from the v7 series, namely:
- Tejun requested I move the struct module to the last attribute when
extending functions
- As per discussion with Tejun, trimmed and clarified the commit log
and documentation on the generic fix on patch 7
- As requested by Bart Van Assche, I simplied the setting of the
struct test_config *config into one line instead of two on many
places on patch 3 which adds the new sysfs selftest
- Dan Williams had some questions about patch 7, and so clarified these
questions using a more elaborate example on the commit log to show
where the lock call was happening.
- Trimmed the Cc list considerably as it was way too long before
- Rebased onto linux-next tag next-20210927
Below a list of changes of this patch set since its inception:
On v1:
- Open coded the sysfs deadlock race to only be localized by the zram
driver
Changes on v2:
- used bdgrab() as well for another race which was speculated by
Minchan
- improved documentation of fixes
Changes on v3:
- used a localized zram macros for the sysfs attributes instead of
open coding on each routine
- replaced bdget() stuff for a generic get_device() and bus_get() on
dev_attr_show() / dev_attr_store() for the issue speculated by
Michan
Changes on v4:
- Cosmetic fixes on the zram fixes as requested by Greg
- Split out the driver core fix as requested by Greg for the
issue speculated by Michan. This fix ended up getting up to its 4th
patch iteration [2] and eventually hit linux-next. We got a 0day
0day suspend stres fail for this patch [3]
Changes on v5:
- I ended up writing a test_sysfs driver and with it I ended up
proving that the issue speculated by Michen was not possible and
so I asked Greg to drop the patch from his queue titled
"sysfs: fix kobject refcount to address races with kobject removal"
- checkpatch fixes for the zram changes
Changes on v6:
- I submitted my test_sysfs driver for inclusion upstream which easily
abstracted the deadlock issue in a driver generically [4]
- I rebased the zram fixes and added also a new patch for zram to use
ATTRIBUTE_GROUPS As per Minchen I sent the patches to be merged
through Andrew Morton.
- Greg ended up NACK'ing the patchset because he was not sure the fix
was correct still
Changes on v7:
- Formalizes the original proposed generic sysfs fix intead of using
macro helpers to work around the issue
- I decided it is best to merge all the effort together into
one patch set because communication was being lost when I split the
patches up. This was not helping in any way to either fix the zram
issues or come to consensus on a generic solution. The patches are
also merged now because they are all related now.
- Running checkpatch exposed that S_IRWXUGO and S_IRWXU|S_IRUGO|S_IXUGO
should be replaced, so I did that in this series in two new patches
- Adds a try_module_get() documentation extension with tribal
knowledge and new information I don't think some folks still believe
in. The new test_sysfs selftest however proves this information to
be correct, the same selftest can be used to try to prove that
documentation incorrect
- Because the fix is now generic zram's deadlock can easily be fixed
now by just making it use ATTRIBUTE_GROUPS().
[0] https://lkml.kernel.org/r/YUjLAbnEB5qPfnL8@slm.duckdns.org
[1] https://lkml.kernel.org/r/20210306022035.11266-1-mcgrof@kernel.org
[2] https://lkml.kernel.org/r/20210623215007.862787-1-mcgrof@kernel.org
[3] https://lkml.kernel.org/r/20210701022737.GC21279@xsang-OptiPlex-9020
[4] https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git/log/?…
Luis Chamberlain (12):
LICENSES: Add the copyleft-next-0.3.1 license
testing: use the copyleft-next-0.3.1 SPDX tag
selftests: add tests_sysfs module
kernfs: add initial failure injection support
test_sysfs: add support to use kernfs failure injection
kernel/module: add documentation for try_module_get()
fs/kernfs/symlink.c: replace S_IRWXUGO with 0777 on
kernfs_create_link()
fs/sysfs/dir.c: replace S_IRWXU|S_IRUGO|S_IXUGO with 0755
sysfs_create_dir_ns()
sysfs: fix deadlock race with module removal
test_sysfs: enable deadlock tests by default
zram: fix crashes with cpu hotplug multistate
zram: use ATTRIBUTE_GROUPS to fix sysfs deadlock module removal
.../fault-injection/fault-injection.rst | 22 +
LICENSES/dual/copyleft-next-0.3.1 | 237 +++
MAINTAINERS | 9 +-
arch/x86/kernel/cpu/resctrl/rdtgroup.c | 4 +-
drivers/block/zram/zram_drv.c | 74 +-
fs/kernfs/Makefile | 1 +
fs/kernfs/dir.c | 44 +-
fs/kernfs/failure-injection.c | 91 ++
fs/kernfs/file.c | 19 +-
fs/kernfs/kernfs-internal.h | 75 +-
fs/kernfs/symlink.c | 4 +-
fs/sysfs/dir.c | 5 +-
fs/sysfs/file.c | 6 +-
fs/sysfs/group.c | 3 +-
include/linux/kernfs.h | 19 +-
include/linux/module.h | 34 +-
include/linux/sysfs.h | 52 +-
kernel/cgroup/cgroup.c | 2 +-
lib/Kconfig.debug | 25 +
lib/Makefile | 1 +
lib/test_kmod.c | 12 +-
lib/test_sysctl.c | 12 +-
lib/test_sysfs.c | 952 ++++++++++++
tools/testing/selftests/kmod/kmod.sh | 13 +-
tools/testing/selftests/sysctl/sysctl.sh | 12 +-
tools/testing/selftests/sysfs/Makefile | 12 +
tools/testing/selftests/sysfs/config | 5 +
tools/testing/selftests/sysfs/sysfs.sh | 1383 +++++++++++++++++
28 files changed, 3026 insertions(+), 102 deletions(-)
create mode 100644 LICENSES/dual/copyleft-next-0.3.1
create mode 100644 fs/kernfs/failure-injection.c
create mode 100644 lib/test_sysfs.c
create mode 100644 tools/testing/selftests/sysfs/Makefile
create mode 100644 tools/testing/selftests/sysfs/config
create mode 100755 tools/testing/selftests/sysfs/sysfs.sh
--
2.30.2
When generating the selftest to another folder, some tests are missing
as they are not added in Makefile. e.g.
make -C tools/testing/selftests/ install \
TARGETS="net" INSTALL_PATH=/tmp/kselftests
These pathset add them separately to make the Fixes tags less. It would
also make the stable tree or downstream backport easier.
If you think there is no need to add the Fixes tag for this minor issue.
I can repost a new patch and merge all the fixes together.
Thanks
v3: no update, just rebase to latest net tree.
v2: move toeplitz.sh/toeplitz_client.sh under TEST_PROGS_EXTENDED.
Hangbin Liu (5):
kselftests/net: add missed icmp.sh test to Makefile
kselftests/net: add missed setup_loopback.sh/setup_veth.sh to Makefile
kselftests/net: add missed SRv6 tests
kselftests/net: add missed vrf_strict_mode_test.sh test to Makefile
kselftests/net: add missed toeplitz.sh/toeplitz_client.sh to Makefile
tools/testing/selftests/net/Makefile | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
--
2.31.1
Hi Linus,
Please pull the following Kselftest next update for Linux 5.16-rc1.
This Kselftest update for Linux 5.16-rc1 consists of fixes to compile
time errors and warnings.
diff is attached.
thanks,
-- Shuah
----------------------------------------------------------------
The following changes since commit 519d81956ee277b4419c723adfb154603c2565ba:
Linux 5.15-rc6 (2021-10-17 20:00:13 -1000)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-next-5.16-rc1
for you to fetch changes up to f35dcaa0a8a29188ed61083d153df1454cf89d08:
selftests/core: fix conflicting types compile error for close_range() (2021-10-29 13:09:42 -0600)
----------------------------------------------------------------
linux-kselftest-next-5.16-rc1
This Kselftest update for Linux 5.16-rc1 consists of fixes to compile
time error and warnings.
----------------------------------------------------------------
Shuah Khan (3):
selftests: kvm: fix mismatched fclose() after popen()
selftests: x86: fix [-Wstringop-overread] warn in test_process_vm_readv()
selftests/core: fix conflicting types compile error for close_range()
tools/testing/selftests/core/close_range_test.c | 2 +-
tools/testing/selftests/kvm/x86_64/mmio_warning_test.c | 2 +-
tools/testing/selftests/x86/test_vsyscall.c | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
----------------------------------------------------------------
Hi Linus,
Please pull the following KUnit update for Linux 5.16-rc1.
This KUnit update for Linux 5.16-rc1 consist of several enhancements
and fixes:
- ability to run each test suite and test separately
- support for timing test run
- several fixes and improvements
diff is attached.
thanks,
-- Shuah
----------------------------------------------------------------
The following changes since commit 519d81956ee277b4419c723adfb154603c2565ba:
Linux 5.15-rc6 (2021-10-17 20:00:13 -1000)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-kunit-5.16-rc1
for you to fetch changes up to 52a5d80a2225e2d0b2a8f4656b76aead2a443b2a:
kunit: tool: fix typecheck errors about loading qemu configs (2021-10-29 13:05:47 -0600)
----------------------------------------------------------------
linux-kselftest-kunit-5.16-rc1
This KUnit update for Linux 5.16-rc1 consist of several enhancements
and fixes:
- ability to run each test suite and test separately
- support for timing test run
- several fixes and improvements
----------------------------------------------------------------
Daniel Latypov (12):
kunit: drop assumption in kunit-log-test about current suite
kunit: tool: allow filtering test cases via glob
kunit: fix too small allocation when using suite-only kunit.filter_glob
kunit: tool: misc fixes (unused vars, imports, leaked files)
kunit: tool: show list of valid --arch options when invalid
kunit: add 'kunit.action' param to allow listing out tests
kunit: tool: factor exec + parse steps into a function
kunit: tool: actually track how long it took to run tests
kunit: tool: support running each suite/test separately
kunit: tool: yield output from run_kernel in real time
kunit: tool: continue past invalid utf-8 output
kunit: tool: fix typecheck errors about loading qemu configs
David Gow (1):
kunit: Reset suite count after running tests
Rae Moar (1):
kunit: tool: improve compatibility of kunit_parser with KTAP specification
Documentation/dev-tools/kunit/running_tips.rst | 11 +-
lib/kunit/executor.c | 152 ++-
lib/kunit/executor_test.c | 110 ++-
lib/kunit/kunit-test.c | 14 +-
lib/kunit/test.c | 6 +-
tools/testing/kunit/kunit.py | 154 ++-
tools/testing/kunit/kunit_json.py | 56 +-
tools/testing/kunit/kunit_kernel.py | 107 ++-
tools/testing/kunit/kunit_parser.py | 1015 ++++++++++++++------
tools/testing/kunit/kunit_tool_test.py | 211 +++-
.../test_is_test_passed-all_passed_nested.log | 34 +
.../test_data/test_is_test_passed-kselftest.log | 14 +
.../test_data/test_is_test_passed-missing_plan.log | 31 +
.../testing/kunit/test_data/test_strip_hyphen.log | 16 +
14 files changed, 1413 insertions(+), 518 deletions(-)
create mode 100644 tools/testing/kunit/test_data/test_is_test_passed-all_passed_nested.log
create mode 100644 tools/testing/kunit/test_data/test_is_test_passed-kselftest.log
create mode 100644 tools/testing/kunit/test_data/test_is_test_passed-missing_plan.log
create mode 100644 tools/testing/kunit/test_data/test_strip_hyphen.log
----------------------------------------------------------------
