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Message-ID: <20240326095118.126696-1-mic@digikod.net>
Date: Tue, 26 Mar 2024 10:51:11 +0100
From: Mickaël Salaün <mic@...ikod.net>
To: Brendan Higgins <brendanhiggins@...gle.com>,
	David Gow <davidgow@...gle.com>,
	Rae Moar <rmoar@...gle.com>,
	Shuah Khan <skhan@...uxfoundation.org>
Cc: Mickaël Salaün <mic@...ikod.net>,
	Alan Maguire <alan.maguire@...cle.com>,
	Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	"Eric W . Biederman" <ebiederm@...ssion.com>,
	"H . Peter Anvin" <hpa@...or.com>,
	Ingo Molnar <mingo@...hat.com>,
	James Morris <jamorris@...ux.microsoft.com>,
	Kees Cook <keescook@...omium.org>,
	Luis Chamberlain <mcgrof@...nel.org>,
	"Madhavan T . Venkataraman" <madvenka@...ux.microsoft.com>,
	Marco Pagani <marpagan@...hat.com>,
	Paolo Bonzini <pbonzini@...hat.com>,
	Sean Christopherson <seanjc@...gle.com>,
	Stephen Boyd <sboyd@...nel.org>,
	Thara Gopinath <tgopinath@...rosoft.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Vitaly Kuznetsov <vkuznets@...hat.com>,
	Zahra Tarkhani <ztarkhani@...rosoft.com>,
	kvm@...r.kernel.org,
	linux-hardening@...r.kernel.org,
	linux-hyperv@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org,
	linux-um@...ts.infradead.org,
	x86@...nel.org
Subject: [PATCH v4 0/7] Handle faults in KUnit tests

Hi,

This patch series teaches KUnit to handle kthread faults as errors, and
it brings a few related fixes and improvements.

Shuah, everything should be OK now, could you please merge this series?

All these tests pass (on top of v6.8):
/tools/testing/kunit/kunit.py run --alltests
/tools/testing/kunit/kunit.py run --alltests --arch x86_64
/tools/testing/kunit/kunit.py run --alltests --arch arm64 \
  --cross_compile=aarch64-linux-gnu-

I also built and ran KUnit tests as a kernel module.

A new test case check NULL pointer dereference, which wasn't possible
before.

This is useful to test current kernel self-protection mechanisms or
future ones such as Heki: https://github.com/heki-linux

Previous versions:
v3: https://lore.kernel.org/r/20240319104857.70783-1-mic@digikod.net
v2: https://lore.kernel.org/r/20240301194037.532117-1-mic@digikod.net
v1: https://lore.kernel.org/r/20240229170409.365386-1-mic@digikod.net

Regards,

Mickaël Salaün (7):
  kunit: Handle thread creation error
  kunit: Fix kthread reference
  kunit: Fix timeout message
  kunit: Handle test faults
  kunit: Fix KUNIT_SUCCESS() calls in iov_iter tests
  kunit: Print last test location on fault
  kunit: Add tests for fault

 include/kunit/test.h      | 24 ++++++++++++++++++---
 include/kunit/try-catch.h |  3 ---
 kernel/kthread.c          |  1 +
 lib/kunit/kunit-test.c    | 45 ++++++++++++++++++++++++++++++++++++++-
 lib/kunit/try-catch.c     | 38 ++++++++++++++++++++++-----------
 lib/kunit_iov_iter.c      | 18 ++++++++--------
 6 files changed, 101 insertions(+), 28 deletions(-)


base-commit: e8f897f4afef0031fe618a8e94127a0934896aba
-- 
2.44.0


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