kernel April 2025

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[OS-BUILD PATCH] redhat/configs: automotive: Enable CONFIG_BOOTPARAM_HUNG_TASK_PANIC config
by Dorinda Bassey (via Email Bridge) 07 Apr '25

07 Apr '25

From: Dorinda Bassey <dbassey(a)redhat.com> redhat/configs: automotive: Enable CONFIG_BOOTPARAM_HUNG_TASK_PANIC config Enable the CONFIG_BOOTPARAM_HUNG_TASK_PANIC and this also automatically enables it's related dependencies. This is needed to satisfy a requirement of FuSa efforts for RHIVOS. Link: https://issues.redhat.com/browse/RHEL-86217 Signed-off-by: Dorinda Bassey <dbassey(a)redhat.com> diff --git a/redhat/configs/rhel/automotive/generic/CONFIG_BOOTPARAM_HUNG_TASK_PANIC b/redhat/configs/rhel/automotive/generic/CONFIG_BOOTPARAM_HUNG_TASK_PANIC new file mode 100644 index blahblah..blahblah 100644 --- /dev/null +++ b/redhat/configs/rhel/automotive/generic/CONFIG_BOOTPARAM_HUNG_TASK_PANIC @@ -0,0 +1 @@ +CONFIG_BOOTPARAM_HUNG_TASK_PANIC=y -- https://gitlab.com/cki-project/kernel-ark/-/merge_requests/3821

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[OS-BUILD PATCH] enable new CORESIGHT_CTCU module for aarch64
by Marcin “hrw” Juszkiewicz (via Email Bridge) 07 Apr '25

07 Apr '25

From: Marcin Juszkiewicz <mjuszkiewicz(a)redhat.com> enable new CORESIGHT_CTCU module for aarch64 We have other CoreSight modules enabled so this one should follow. Symbol: CORESIGHT_CTCU [=n] Type : tristate Defined at drivers/hwtracing/coresight/Kconfig:136 Prompt: CoreSight TMC Control Unit driver Depends on: CORESIGHT [=m] && CORESIGHT_LINK_AND_SINK_TMC [=m] Location: -> Kernel hacking -> arm64 Debugging -> CoreSight Tracing Support (CORESIGHT [=m]) -> CoreSight TMC Control Unit driver (CORESIGHT_CTCU [=n]) Commit: f78d206f3d73 (Coresight: Add Coresight TMC Control Unit driver) Message-ID: <2a69366c1289d324dd1c454894b4df1267372009.1744019658.git.mjuszkiewicz(a)redhat.com> diff --git a/redhat/configs/common/generic/arm/aarch64/CONFIG_CORESIGHT_CTCU b/redhat/configs/common/generic/arm/aarch64/CONFIG_CORESIGHT_CTCU new file mode 100644 index blahblah..blahblah 100644 --- /dev/null +++ b/redhat/configs/common/generic/arm/aarch64/CONFIG_CORESIGHT_CTCU @@ -0,0 +1 @@ +CONFIG_CORESIGHT_CTCU=m diff --git a/redhat/configs/pending-rhel/generic/CONFIG_CORESIGHT_CTCU b/redhat/configs/pending-rhel/generic/CONFIG_CORESIGHT_CTCU deleted file mode 100644 index blahblah..blahblah 0 --- a/redhat/configs/pending-rhel/generic/CONFIG_CORESIGHT_CTCU +++ /dev/null @@ -1,15 +0,0 @@ -# Symbol: CORESIGHT_CTCU [=n] -# Type : tristate -# Defined at drivers/hwtracing/coresight/Kconfig:136 -# Prompt: CoreSight TMC Control Unit driver -# Depends on: CORESIGHT [=m] && CORESIGHT_LINK_AND_SINK_TMC [=m] -# Location: -# -> Kernel hacking -# -> arm64 Debugging -# -> CoreSight Tracing Support (CORESIGHT [=m]) -# -> CoreSight TMC Control Unit driver (CORESIGHT_CTCU [=n]) -# -# -# -# Commit: f78d206f3d73 (Coresight: Add Coresight TMC Control Unit driver) -# CONFIG_CORESIGHT_CTCU is not set -- https://gitlab.com/cki-project/kernel-ark/-/merge_requests/3820

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[OS-BUILD PATCH] redhat/kernel.spec.template: add net packetdrill selftests
by Hangbin Liu (via Email Bridge) 06 Apr '25

06 Apr '25

From: Hangbin Liu <haliu(a)redhat.com> redhat/kernel.spec.template: add net packetdrill selftests Add net packetdrill selftests to internal selftests rpm. Signed-off-by: Hangbin Liu <haliu(a)redhat.com> diff --git a/redhat/kernel.spec.template b/redhat/kernel.spec.template index blahblah..blahblah 100644 --- a/redhat/kernel.spec.template +++ b/redhat/kernel.spec.template @@ -3186,7 +3186,7 @@ pushd tools/testing/selftests %endif %{log_msg "main selftests compile"} -%{make} %{?_smp_mflags} ARCH=$Arch V=1 TARGETS="bpf cgroup mm net net/forwarding net/mptcp net/netfilter tc-testing memfd drivers/net/bonding iommu cachestat" SKIP_TARGETS="" $force_targets INSTALL_PATH=%{buildroot}%{_libexecdir}/kselftests VMLINUX_H="${RPM_VMLINUX_H}" install +%{make} %{?_smp_mflags} ARCH=$Arch V=1 TARGETS="bpf cgroup mm net net/forwarding net/mptcp net/netfilter net/packetdrill tc-testing memfd drivers/net/bonding iommu cachestat" SKIP_TARGETS="" $force_targets INSTALL_PATH=%{buildroot}%{_libexecdir}/kselftests VMLINUX_H="${RPM_VMLINUX_H}" install %ifarch %{klptestarches} # kernel livepatching selftest test_modules will build against @@ -3557,6 +3557,12 @@ find -type d -exec install -d %{buildroot}%{_libexecdir}/kselftests/net/netfilte find -type f -executable -exec install -D -m755 {} %{buildroot}%{_libexecdir}/kselftests/net/netfilter/{} \; find -type f ! -executable -exec install -D -m644 {} %{buildroot}%{_libexecdir}/kselftests/net/netfilter/{} \; popd +# install net/packetdrill selftests +pushd tools/testing/selftests/net/packetdrill +find -type d -exec install -d %{buildroot}%{_libexecdir}/kselftests/net/packetdrill/{} \; +find -type f -executable -exec install -D -m755 {} %{buildroot}%{_libexecdir}/kselftests/net/packetdrill/{} \; +find -type f ! -executable -exec install -D -m644 {} %{buildroot}%{_libexecdir}/kselftests/net/packetdrill/{} \; +popd # install memfd selftests pushd tools/testing/selftests/memfd -- https://gitlab.com/cki-project/kernel-ark/-/merge_requests/3819

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[OS-BUILD PATCH] [redhat] move TEST_BLACKHOLE_DEV to BLACKHOLE_DEV_KUNIT_TEST and enable it
by Hangbin Liu (via Email Bridge) 06 Apr '25

06 Apr '25

From: Hangbin Liu <haliu(a)redhat.com> [redhat] move TEST_BLACKHOLE_DEV to BLACKHOLE_DEV_KUNIT_TEST and enable it Since commit b341f6fd45ab ("blackhole_dev: convert self-test to KUnit"), config TEST_BLACKHOLE_DEV is renamed to BLACKHOLE_DEV_KUNIT_TEST. Also enable it for kunit testing. Signed-off-by: Hangbin Liu <haliu(a)redhat.com> diff --git a/redhat/configs/common/generic/CONFIG_BLACKHOLE_DEV_KUNIT_TEST b/redhat/configs/common/generic/CONFIG_BLACKHOLE_DEV_KUNIT_TEST new file mode 100644 index blahblah..blahblah 100644 --- /dev/null +++ b/redhat/configs/common/generic/CONFIG_BLACKHOLE_DEV_KUNIT_TEST @@ -0,0 +1 @@ +CONFIG_BLACKHOLE_DEV_KUNIT_TEST=m diff --git a/redhat/configs/common/generic/CONFIG_TEST_BLACKHOLE_DEV b/redhat/configs/common/generic/CONFIG_TEST_BLACKHOLE_DEV deleted file mode 100644 index blahblah..blahblah 0 --- a/redhat/configs/common/generic/CONFIG_TEST_BLACKHOLE_DEV +++ /dev/null @@ -1 +0,0 @@ -# CONFIG_TEST_BLACKHOLE_DEV is not set -- https://gitlab.com/cki-project/kernel-ark/-/merge_requests/3818

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✅ PASS (MISSED 9 of 51): Test report for 6.14.0-200.fc41 (fedora-latest)
by cki-project＠redhat.com 05 Apr '25

05 Apr '25

Hi, we tested your kernel and here are the results: Overall result: PASSED Merge: OK Compile: OK Test: OK Tested-by: CKI Project <cki-project(a)redhat.com> Kernel information: Brew / Koji Task ID: 131109398 You can find all the details about the test run at https://datawarehouse.cki-project.org/kcidb/checkouts/redhat:koji-131109398 Tests that were not ran because of internal issues: Boot test [s390x] CKI/restraint [s390x] machineinfo [s390x] Reboot test [s390x] SELinux Custom Module Setup [s390x] stress: stress-ng - cpu [s390x] stress: stress-ng - cpu-cache [s390x] stress: stress-ng - interrupt [s390x] stress: stress-ng - memory [s390x] If you find a failure unrelated to your changes, please ask the test maintainer to review it. This will prevent the failures from being incorrectly reported in the future. Please reply to this email if you have any questions about the tests that we ran or if you have any suggestions on how to make future tests more effective. ,-. ,-. ( C ) ( K ) Continuous `-',-.`-' Kernel ( I ) Integration `-' ______________________________________________________________________________

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[OS-BUILD PATCH] [redhat] configs: do not override CRYPTO_CHACHA20_P10 in rhel
by Patrick Talbert (via Email Bridge) 04 Apr '25

04 Apr '25

From: Patrick Talbert <ptalbert(a)redhat.com> [redhat] configs: do not override CRYPTO_CHACHA20_P10 in rhel Since 17ec3e71 ('crypto: lib/Kconfig - Hide arch options from user') the config option CRYPTO_CHACHA20_P10 is no longer user-selectable. Accept the new default value of being enabled (as CRYPTO_LIB_CHACHA_INTERNAL is enabled foir powerpc). Signed-off-by: Patrick Talbert <ptalbert(a)redhat.com> diff --git a/redhat/configs/pending-rhel/generic/powerpc/CONFIG_CRYPTO_CHACHA20_P10 b/redhat/configs/pending-rhel/generic/powerpc/CONFIG_CRYPTO_CHACHA20_P10 deleted file mode 100644 index blahblah..blahblah 0 --- a/redhat/configs/pending-rhel/generic/powerpc/CONFIG_CRYPTO_CHACHA20_P10 +++ /dev/null @@ -1 +0,0 @@ -CONFIG_CRYPTO_CHACHA20_P10=y -- https://gitlab.com/cki-project/kernel-ark/-/merge_requests/3786

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[OS-BUILD PATCH] [redhat] scripts: sort dumped keys in uki_create_json.py
by Patrick Talbert (via Email Bridge) 04 Apr '25

04 Apr '25

From: Patrick Talbert <ptalbert(a)redhat.com> [redhat] scripts: sort dumped keys in uki_create_json.py The order of the keys in the json output may change causing unnecessary churn in the dist-git diffs. Fix this by setting sort_keys=True in the json.dump() call. Outside of locale sorting differences this should provide a more stable experience. Signed-off-by: Patrick Talbert <ptalbert(a)redhat.com> diff --git a/redhat/scripts/uki_addons/uki_create_json.py b/redhat/scripts/uki_addons/uki_create_json.py index blahblah..blahblah 100755 --- a/redhat/scripts/uki_addons/uki_create_json.py +++ b/redhat/scripts/uki_addons/uki_create_json.py @@ -86,7 +86,7 @@ def create_json(addons): def write_json(obj, dest_file): with open(dest_file, 'w') as f: - json.dump(obj , f, indent=4) + json.dump(obj , f, indent=4, sort_keys=True) print(f'Processed addons files are in {dest_file}') if __name__ == "__main__": -- https://gitlab.com/cki-project/kernel-ark/-/merge_requests/3817

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[OS-BUILD PATCH] [redhat] New configs in security/Kconfig
by CKI ARK Bot (via Email Bridge) 04 Apr '25

04 Apr '25

From: Fedora Kernel Team <kernel-team(a)fedoraproject.org> [redhat] New configs in security/Kconfig Hi, As part of the ongoing rebase effort, the following configuration options need to be reviewed. As a reminder, the ARK configuration flow involves moving unreviewed configuration options from the pending directory to the ark directory. In the diff below, options are removed from the pending directory and added to the ark hierarchy. The final options that need to be ACKed are the files that are being added to the ark hierarchy. If the value for a file that is added should be changed, please reply with a better option. Symbol: MSEAL_SYSTEM_MAPPINGS [=n] Type : bool Defined at security/Kconfig:54 Prompt: mseal system mappings Depends on: 64BIT [=y] && ARCH_SUPPORTS_MSEAL_SYSTEM_MAPPINGS [=y] && !CHECKPOINT_RESTORE [=n] Location: -> Security options -> mseal system mappings (MSEAL_SYSTEM_MAPPINGS [=n]) Commit: 5796d3967c09 (mseal sysmap: kernel config and header change) --- Signed-off-by: Fedora Kernel Team <kernel-team(a)fedoraproject.org> diff --git a/redhat/configs/pending-rhel/generic/CONFIG_MSEAL_SYSTEM_MAPPINGS b/redhat/configs/pending-rhel/generic/CONFIG_MSEAL_SYSTEM_MAPPINGS deleted file mode 100644 index blahblah..blahblah 0 --- a/redhat/configs/pending-rhel/generic/CONFIG_MSEAL_SYSTEM_MAPPINGS +++ /dev/null @@ -1,13 +0,0 @@ -# Symbol: MSEAL_SYSTEM_MAPPINGS [=n] -# Type : bool -# Defined at security/Kconfig:54 -# Prompt: mseal system mappings -# Depends on: 64BIT [=y] && ARCH_SUPPORTS_MSEAL_SYSTEM_MAPPINGS [=y] && !CHECKPOINT_RESTORE [=n] -# Location: -# -> Security options -# -> mseal system mappings (MSEAL_SYSTEM_MAPPINGS [=n]) -# -# -# -# Commit: 5796d3967c09 (mseal sysmap: kernel config and header change) -# CONFIG_MSEAL_SYSTEM_MAPPINGS is not set diff --git a/redhat/configs/rhel/generic/CONFIG_MSEAL_SYSTEM_MAPPINGS b/redhat/configs/rhel/generic/CONFIG_MSEAL_SYSTEM_MAPPINGS new file mode 100644 index blahblah..blahblah 100644 --- /dev/null +++ b/redhat/configs/rhel/generic/CONFIG_MSEAL_SYSTEM_MAPPINGS @@ -0,0 +1 @@ +# CONFIG_MSEAL_SYSTEM_MAPPINGS is not set -- https://gitlab.com/cki-project/kernel-ark/-/merge_requests/3816

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[OS-BUILD PATCH] redhat/kernel.spec.template: Build rtla with BPF sample collection
by Tomas Glozar (via Email Bridge) 04 Apr '25

04 Apr '25

From: Tomas Glozar <tglozar(a)redhat.com> redhat/kernel.spec.template: Build rtla with BPF sample collection Sample collection using BPF was introduced in 6.15 as a faster default mechanism. The previous implementation using a tracefs pipe is now a fallback. This allows rtla to work properly when measuring on a large number of CPUs, as well as reduces CPU usage on all systems. Add build dependency on libbpf-devel, bpftool, and clang, and runtime dependency on libbpf for rtla in order to enable rtla BPF sample collection. Signed-off-by: Tomas Glozar <tglozar(a)redhat.com> diff --git a/redhat/kernel.spec.template b/redhat/kernel.spec.template index blahblah..blahblah 100644 --- a/redhat/kernel.spec.template +++ b/redhat/kernel.spec.template @@ -755,6 +755,9 @@ BuildRequires: libcap-devel libcap-ng-devel BuildRequires: python3-docutils BuildRequires: libtraceevent-devel BuildRequires: libtracefs-devel +BuildRequires: libbpf-devel +BuildRequires: bpftool +BuildRequires: clang %ifnarch s390x BuildRequires: pciutils-devel @@ -1311,6 +1314,7 @@ Epoch: %{gemini} Summary: Real-Time Linux Analysis tools Requires: libtraceevent Requires: libtracefs +Requires: libbpf %ifarch %{cpupowerarchs} Requires: %{package_name}-tools-libs = %{version}-%{release} %endif -- https://gitlab.com/cki-project/kernel-ark/-/merge_requests/3815

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[OS-BUILD PATCH] samples/bpf: fix build
by Gregory Bell (via Email Bridge) 03 Apr '25

03 Apr '25

From: Gregory Bell <grbell(a)redhat.com> samples/bpf: fix build Moving bootstrap bpftool build into a function then pass bootstrap bpftool to samples/bpf Makefile instead of rebuilding during the samples/bpf make process. If bpftool is not already built then build right before samples/bpf build and pass to samples/bpf. Always pass vmlinux.h to samples/bpf by setting RPM_VMLINUX_H variable depending on current build. If the kernel is built with debuginfo it is located at RPM_BUILD_ROOT/DevelDir/vmlinux.h. In the case of tools only build it is at DevelDir/vmlinux.h Signed-off-by: Gregory Bell <grbell(a)redhat.com> diff --git a/redhat/kernel.spec.template b/redhat/kernel.spec.template index blahblah..blahblah 100644 --- a/redhat/kernel.spec.template +++ b/redhat/kernel.spec.template @@ -2185,6 +2185,13 @@ InitBuildVars() { fi } +#Build bootstrap bpftool +BuildBpftool(){ + export BPFBOOTSTRAP_CFLAGS=$(echo "%{__global_compiler_flags}" | sed -r "s/\-specs=[^\ ]+\/redhat-annobin-cc1//") + export BPFBOOTSTRAP_LDFLAGS=$(echo "%{__global_ldflags}" | sed -r "s/\-specs=[^\ ]+\/redhat-annobin-cc1//") + CFLAGS="" LDFLAGS="" make EXTRA_CFLAGS="${BPFBOOTSTRAP_CFLAGS}" EXTRA_CXXFLAGS="${BPFBOOTSTRAP_CFLAGS}" EXTRA_LDFLAGS="${BPFBOOTSTRAP_LDFLAGS}" %{?make_opts} %{?clang_make_opts} V=1 -C tools/bpf/bpftool bootstrap +} + BuildKernel() { %{log_msg "BuildKernel for $4"} MakeTarget=$1 @@ -2912,10 +2919,7 @@ BuildKernel() { if [ "$Variant" != "zfcpdump" ]; then %{log_msg "Build the bootstrap bpftool to generate vmlinux.h"} # Build the bootstrap bpftool to generate vmlinux.h - export BPFBOOTSTRAP_CFLAGS=$(echo "%{__global_compiler_flags}" | sed -r "s/\-specs=[^\ ]+\/redhat-annobin-cc1//") - export BPFBOOTSTRAP_LDFLAGS=$(echo "%{__global_ldflags}" | sed -r "s/\-specs=[^\ ]+\/redhat-annobin-cc1//") - CFLAGS="" LDFLAGS="" make EXTRA_CFLAGS="${BPFBOOTSTRAP_CFLAGS}" EXTRA_CXXFLAGS="${BPFBOOTSTRAP_CFLAGS}" EXTRA_LDFLAGS="${BPFBOOTSTRAP_LDFLAGS}" %{?make_opts} %{?clang_make_opts} V=1 -C tools/bpf/bpftool bootstrap - + BuildBpftool tools/bpf/bpftool/bootstrap/bpftool btf dump file vmlinux format c > $RPM_BUILD_ROOT/$DevelDir/vmlinux.h fi %endif @@ -3152,7 +3156,10 @@ pushd tools/tracing/rtla popd %endif -if [ -f $DevelDir/vmlinux.h ]; then +#set RPM_VMLINUX_H +if [ -f $RPM_BUILD_ROOT/$DevelDir/vmlinux.h ]; then + RPM_VMLINUX_H=$RPM_BUILD_ROOT/$DevelDir/vmlinux.h +elif [ -f $DevelDir/vmlinux.h ]; then RPM_VMLINUX_H=$DevelDir/vmlinux.h fi echo "${RPM_VMLINUX_H}" > ../vmlinux_h_path @@ -3173,8 +3180,13 @@ if [ ! -f include/generated/autoconf.h ]; then %{make} %{?_smp_mflags} modules_prepare fi +# Build BPFtool for samples/bpf +if [ ! -f tools/bpf/bpftool/bootstrap/bpftool ]; then + BuildBpftool +fi + %{log_msg "build samples/bpf"} -%{make} %{?_smp_mflags} ARCH=$Arch V=1 M=samples/bpf/ VMLINUX_H="${RPM_VMLINUX_H}" || true +%{make} %{?_smp_mflags} ARCH=$Arch BPFTOOL=$(pwd)/tools/bpf/bpftool/bootstrap/bpftool V=1 M=samples/bpf/ VMLINUX_H="${RPM_VMLINUX_H}" || true pushd tools/testing/selftests # We need to install here because we need to call make with ARCH set which -- https://gitlab.com/cki-project/kernel-ark/-/merge_requests/3812

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kernel April 2025