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Linux kernel source tree
5ed19574eb
- Fix undef warning when WARNINGS_FILE is unset
The check_buildlog() references WARNINGS_FILE even when it's not set. Perl
triggers a warning in this case. Check if the WARNINGS_FILE is defined
before checking if the file it represents exists.
- Fix how LOG_FILE is resolved
LOG_FILE is expanded immediately after the config file is parsed. If
LOG_FILE depends on variables from the tests it will use stale values
instead of using the test variables. Have LOG_FILE also resolve test
variables.
- Treat a undefined self reference variable as empty
Variables can recursively include itself for appending. Currently, if the
references itself and it is not defined, it leaves the variable in the
define: "VAR = ${VAR} foo" keeps the ${VAR} around. Have it removed
instead.
- Fix clearing of variables per tests
If a variable has a defined default, a test can not clear it by assigning
the variable to empty. Fix this by clearing the variable for a test when
the test config has that variable assigned to nothing.
- Fix run_command() to catch stderr in the shell command parsing
Switch to Perl list form open to use "sh -c" wrapper to run shell commands
to have the log file catch shell parsing errors.
- Fix console output during reboot cycle
The POWER_CYCLE callback during reboot() can miss output from the next
boot making ktest miss the boot string it was waiting for.
- Add PRE_KTEST_DIE for PRE_KTEST failures
If the command for PRE_KTEST fails, ktest does not fail (this was by
design as this command was used to add patches that may or may not apply).
Add PRE_KTEST_DIE value to force ktest to fail if PRE_KTEST fails.
- Run POST_KTEST hooks on failure and cancellation
PRE_KTEST always runs before a ktest test, have POST_KTEST always run
after a test even if the test fails or is cancelled to do the teardown of
PRE_KTEST.
-- Add a --dry-run mode
Add --dry-run to parse the config, print the results and exit without
running any of the tests.
-- Store failures from the dodie() path as well
The STORE_FAILURES saves the logs on failure, but there's failure paths
that miss storing. Perform STORE_FAILURES in dodie() to capture these
failures too.
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Merge tag 'ktest-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
Pull ktest updates from Steven Rostedt:
- Fix undef warning when WARNINGS_FILE is unset
The check_buildlog() references WARNINGS_FILE even when it's not set.
Perl triggers a warning in this case. Check if the WARNINGS_FILE is
defined before checking if the file it represents exists.
- Fix how LOG_FILE is resolved
LOG_FILE is expanded immediately after the config file is parsed. If
LOG_FILE depends on variables from the tests it will use stale values
instead of using the test variables. Have LOG_FILE also resolve test
variables.
- Treat a undefined self reference variable as empty
Variables can recursively include itself for appending. Currently, if
the references itself and it is not defined, it leaves the variable
in the define: "VAR = ${VAR} foo" keeps the ${VAR} around. Have it
removed instead.
- Fix clearing of variables per tests
If a variable has a defined default, a test can not clear it by
assigning the variable to empty. Fix this by clearing the variable
for a test when the test config has that variable assigned to
nothing.
- Fix run_command() to catch stderr in the shell command parsing
Switch to Perl list form open to use "sh -c" wrapper to run shell
commands to have the log file catch shell parsing errors.
- Fix console output during reboot cycle
The POWER_CYCLE callback during reboot() can miss output from the
next boot making ktest miss the boot string it was waiting for.
- Add PRE_KTEST_DIE for PRE_KTEST failures
If the command for PRE_KTEST fails, ktest does not fail (this was by
design as this command was used to add patches that may or may not
apply). Add PRE_KTEST_DIE value to force ktest to fail if PRE_KTEST
fails.
- Run POST_KTEST hooks on failure and cancellation
PRE_KTEST always runs before a ktest test, have POST_KTEST always run
after a test even if the test fails or is cancelled to do the
teardown of PRE_KTEST.
- Add a --dry-run mode
Add --dry-run to parse the config, print the results and exit without
running any of the tests.
- Store failures from the dodie() path as well
The STORE_FAILURES saves the logs on failure, but there's failure
paths that miss storing. Perform STORE_FAILURES in dodie() to capture
these failures too.
* tag 'ktest-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest: Store failure logs also in fatal paths
ktest: Add a --dry-run mode
ktest: Run POST_KTEST hooks on failure and cancellation
ktest: Add PRE_KTEST_DIE for PRE_KTEST failures
ktest: Stop dropping console output during power-cycle reboot
ktest: Run commands through list-form shell open
ktest: Honor empty per-test option overrides
ktest: Treat undefined self-reference as empty
ktest: Resolve LOG_FILE in test option context
ktest: Avoid undef warning when WARNINGS_FILE is unset
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| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
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| COPYING | ||
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| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel ============ The Linux kernel is the core of any Linux operating system. It manages hardware, system resources, and provides the fundamental services for all other software. Quick Start ----------- * Report a bug: See Documentation/admin-guide/reporting-issues.rst * Get the latest kernel: https://kernel.org * Build the kernel: See Documentation/admin-guide/quickly-build-trimmed-linux.rst * Join the community: https://lore.kernel.org/ Essential Documentation ----------------------- All users should be familiar with: * Building requirements: Documentation/process/changes.rst * Code of Conduct: Documentation/process/code-of-conduct.rst * License: See COPYING Documentation can be built with make htmldocs or viewed online at: https://www.kernel.org/doc/html/latest/ Who Are You? ============ Find your role below: * New Kernel Developer - Getting started with kernel development * Academic Researcher - Studying kernel internals and architecture * Security Expert - Hardening and vulnerability analysis * Backport/Maintenance Engineer - Maintaining stable kernels * System Administrator - Configuring and troubleshooting * Maintainer - Leading subsystems and reviewing patches * Hardware Vendor - Writing drivers for new hardware * Distribution Maintainer - Packaging kernels for distros * AI Coding Assistant - LLMs and AI-powered development tools For Specific Users ================== New Kernel Developer -------------------- Welcome! Start your kernel development journey here: * Getting Started: Documentation/process/development-process.rst * Your First Patch: Documentation/process/submitting-patches.rst * Coding Style: Documentation/process/coding-style.rst * Build System: Documentation/kbuild/index.rst * Development Tools: Documentation/dev-tools/index.rst * Kernel Hacking Guide: Documentation/kernel-hacking/hacking.rst * Core APIs: Documentation/core-api/index.rst Academic Researcher ------------------- Explore the kernel's architecture and internals: * Researcher Guidelines: Documentation/process/researcher-guidelines.rst * Memory Management: Documentation/mm/index.rst * Scheduler: Documentation/scheduler/index.rst * Networking Stack: Documentation/networking/index.rst * Filesystems: Documentation/filesystems/index.rst * RCU (Read-Copy Update): Documentation/RCU/index.rst * Locking Primitives: Documentation/locking/index.rst * Power Management: Documentation/power/index.rst Security Expert --------------- Security documentation and hardening guides: * Security Documentation: Documentation/security/index.rst * LSM Development: Documentation/security/lsm-development.rst * Self Protection: Documentation/security/self-protection.rst * Reporting Vulnerabilities: Documentation/process/security-bugs.rst * CVE Procedures: Documentation/process/cve.rst * Embargoed Hardware Issues: Documentation/process/embargoed-hardware-issues.rst * Security Features: Documentation/userspace-api/seccomp_filter.rst Backport/Maintenance Engineer ----------------------------- Maintain and stabilize kernel versions: * Stable Kernel Rules: Documentation/process/stable-kernel-rules.rst * Backporting Guide: Documentation/process/backporting.rst * Applying Patches: Documentation/process/applying-patches.rst * Subsystem Profile: Documentation/maintainer/maintainer-entry-profile.rst * Git for Maintainers: Documentation/maintainer/configure-git.rst System Administrator -------------------- Configure, tune, and troubleshoot Linux systems: * Admin Guide: Documentation/admin-guide/index.rst * Kernel Parameters: Documentation/admin-guide/kernel-parameters.rst * Sysctl Tuning: Documentation/admin-guide/sysctl/index.rst * Tracing/Debugging: Documentation/trace/index.rst * Performance Security: Documentation/admin-guide/perf-security.rst * Hardware Monitoring: Documentation/hwmon/index.rst Maintainer ---------- Lead kernel subsystems and manage contributions: * Maintainer Handbook: Documentation/maintainer/index.rst * Pull Requests: Documentation/maintainer/pull-requests.rst * Managing Patches: Documentation/maintainer/modifying-patches.rst * Rebasing and Merging: Documentation/maintainer/rebasing-and-merging.rst * Development Process: Documentation/process/maintainer-handbooks.rst * Maintainer Entry Profile: Documentation/maintainer/maintainer-entry-profile.rst * Git Configuration: Documentation/maintainer/configure-git.rst Hardware Vendor --------------- Write drivers and support new hardware: * Driver API Guide: Documentation/driver-api/index.rst * Driver Model: Documentation/driver-api/driver-model/driver.rst * Device Drivers: Documentation/driver-api/infrastructure.rst * Bus Types: Documentation/driver-api/driver-model/bus.rst * Device Tree Bindings: Documentation/devicetree/bindings/ * Power Management: Documentation/driver-api/pm/index.rst * DMA API: Documentation/core-api/dma-api.rst Distribution Maintainer ----------------------- Package and distribute the kernel: * Stable Kernel Rules: Documentation/process/stable-kernel-rules.rst * ABI Documentation: Documentation/ABI/README * Kernel Configuration: Documentation/kbuild/kconfig.rst * Module Signing: Documentation/admin-guide/module-signing.rst * Kernel Parameters: Documentation/admin-guide/kernel-parameters.rst * Tainted Kernels: Documentation/admin-guide/tainted-kernels.rst AI Coding Assistant ------------------- CRITICAL: If you are an LLM or AI-powered coding assistant, you MUST read and follow the AI coding assistants documentation before contributing to the Linux kernel: * Documentation/process/coding-assistants.rst This documentation contains essential requirements about licensing, attribution, and the Developer Certificate of Origin that all AI tools must comply with. Communication and Support ========================= * Mailing Lists: https://lore.kernel.org/ * IRC: #kernelnewbies on irc.oftc.net * Bugzilla: https://bugzilla.kernel.org/ * MAINTAINERS file: Lists subsystem maintainers and mailing lists * Email Clients: Documentation/process/email-clients.rst