If a variable appears multiple times in the specification, ltl2k generates
multiple variable definitions. This fails the build.
Make sure each variable is only defined once.
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Gabriele Monaco <gmonaco@redhat.com>
Link: https://lore.kernel.org/107dcf0d0aa8482d5fbe0314c3138f61cd284e91.1752850449.git.namcao@linutronix.de
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
The 'next' operator is a unary operator. It is defined as: "next time, the
operand must be true".
Support this operator. For RV monitors, "next time" means the next
invocation of ltl_validate().
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/9c32cec04dd18d2e956fddd84b0e0a2503daa75a.1752239482.git.namcao@linutronix.de
Signed-off-by: Nam Cao <namcao@linutronix.de>
Tested-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Add documents describing linear temporal logic runtime verification
monitors and how to generate them using rvgen.
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Gabriele Monaco <gmonaco@redhat.com>
Link: https://lore.kernel.org/be13719e66fd8da147d7c69d5365aa23c52b743f.1751634289.git.namcao@linutronix.de
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Add support for generating RV monitors from linear temporal logic, similar
to the generation of deterministic automaton monitors.
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Gabriele Monaco <gmonaco@redhat.com>
Link: https://lore.kernel.org/f3c63b363ff9c5af3302ba2b5d92a26a98700eaf.1751634289.git.namcao@linutronix.de
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Both container generation and DA monitor generation is implemented in the
class dot2k. That requires some ugly "if is_container ... else ...". If
linear temporal logic support is added at the current state, the "if else"
chain is longer and uglier.
Furthermore, container generation is irrevelant to .dot files. It is
therefore illogical to be implemented in class "dot2k".
Clean it up, restructure the dot2k class into the following class
hierarchy:
(RVGenerator)
/\
/ \
/ \
/ \
/ \
(Container) (Monitor)
/\
/ \
/ \
/ \
(dot2k) [ltl2k] <- intended
This allows a simple and clean integration of LTL.
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/692137a581ba6bee7a64d37fb7173ae137c47bbd.1751634289.git.namcao@linutronix.de
Reviewed-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
To simply the scripts and to allow easy integration of new monitor types,
restructure the template files as followed:
1. Move the template files to be in the same directory as the rvgen
package. Furthermore, the installation will now only install the
templates to the package directory, not /usr/share/. This simplify
templates reading, as the scripts do not need to find the templates at
multiple places.
2. Move dot2k_templates/* to:
- templates/dot2k/
- templates/container/
This allows sharing templates reading code between DA monitor generation
and container generation (and any future generation type).
For template files which can be shared between different generation
types, support putting them in templates/
This restructure aligns with the recommendation from:
https://python-packaging.readthedocs.io/en/latest/non-code-files.html
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/462d90273f96804d3ba850474877d5f727031258.1751634289.git.namcao@linutronix.de
Reviewed-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Monitor synthesis from deterministic automaton and linear temporal logic
have a lot in common. Therefore a single document should describe both.
Change da_monitor_synthesis.rst to monitor_synthesis.rst. LTL monitor
synthesis will be added to this file by a follow-up commit.
This makes the diff far easier to read. If renaming and adding LTL info is
done in a single commit, git wouldn't recognize it as a rename, but a file
removal and a file addition.
While at it, correct the old dot2k commands to the new rvgen commands.
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/d91c6e4600287f4732d68a014219e576a75ce6dc.1751634289.git.namcao@linutronix.de
Reviewed-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
The dot2k tool has some code that can be reused for linear temporal logic
monitor. Prepare its frontend for LTL inclusion:
1. Rename to be generic: rvgen
2. Replace the parameter --dot with 2 parameters:
--class: to specific the monitor class, can be 'da' or 'ltl'
--spec: the monitor specification file, .dot file for DA, and .ltl
file for LTL
The old command:
python3 dot2/dot2k monitor -d wip.dot -t per_cpu
is equivalent to the new commands:
python3 rvgen monitor -c da -s wip.dot -t per_cpu
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/dea18f7a44374e4db8df5c7e785604bc3062ffc9.1751634289.git.namcao@linutronix.de
Reviewed-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
dot2k is used for both generating deterministic automaton (DA) monitor and
generating container monitor.
Generating DA monitor and generating container requires different
parameters. This is implemented by peeking at sys.argv and check whether
"--container" is specified, and use that information to make some
parameters optional or required.
This works, but is quite hacky and ugly.
Replace this hack with Python's built-in subparsers.
The old commands:
python3 dot2/dot2k -d wip.dot -t per_cpu
python3 dot2/dot2k -n sched --container
are equivalent to the new commands:
python3 dot2/dot2k monitor -d wip.dot -t per_cpu
python3 dot2/dot2k container -n sched
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/23c4e3c6e10c39e86d8e6a289208dde407efc4a8.1751634289.git.namcao@linutronix.de
Reviewed-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
str.join() can do what __buff_to_string() does. Therefore replace
__buff_to_string() to make the scripts more pythonic.
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/860d6002659f604c743e0f23d5cf3c99ea6a82d8.1751634289.git.namcao@linutronix.de
Reviewed-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
A generated container's Kconfig has an incorrect line:
select DA_MON_EVENTS_IMPLICIT
This is due to container generation uses the same template Kconfig file as
deterministic automaton monitor.
Therefore, make a separate Kconfig template for container which has only
the necessaries for container.
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/d54fd7ee120785bec5695220e837dbbd6efb30e5.1751634289.git.namcao@linutronix.de
Reviewed-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
On start condition of a Buchi automaton, the automaton is executed twice.
This is fine for now, as all the current LTL operators do not care about
this. But it would break the 'next' operator, which will be introduced in a
follow-up patch.
Prepare for the introduction of the 'next' operator, only execute the
automaton once on start condition.
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Gabriele Monaco <gmonaco@redhat.com>
Link: https://lore.kernel.org/9379f4e7b9c1c69a6dca3e20a22936c850a25ca7.1752239482.git.namcao@linutronix.de
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
The description above vpanic() has the wrong function name. Fix it up.
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Gabriele Monaco <gmonaco@redhat.com>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/23a7e8add6546b155371b7e0fbb37bb1def13d6e.1752232374.git.namcao@linutronix.de
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/lkml/20250711183802.2d8c124d@canb.auug.org.au/
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
vpanic() does not return. However, objtool doesn't know this and gets
confused:
kernel/trace/rv/reactor_panic.o: warning: objtool: rv_panic_reaction(): unexpected end of section .text
Add vpanic() to the list of noreturn functions.
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Gabriele Monaco <gmonaco@redhat.com>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/073f826ebec18b2bb59cba88606cd865d8039fd2.1752232374.git.namcao@linutronix.de
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202507110826.2ekbVdWZ-lkp@intel.com/
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Now that there are 2 monitors for real-time applications, users may want to
enable both of them simultaneously. Make the number of per-task monitor
configurable. Default it to 2 for now.
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/93e83313fc4ba7f6e66f4abe80ca5f5494d658d0.1752088709.git.namcao@linutronix.de
Reviewed-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Add a monitor for checking that real-time tasks do not go to sleep in a
manner that may cause undesirable latency.
Also change
RV depends on TRACING
to
RV select TRACING
to avoid the following recursive dependency:
error: recursive dependency detected!
symbol TRACING is selected by PREEMPTIRQ_TRACEPOINTS
symbol PREEMPTIRQ_TRACEPOINTS depends on TRACE_IRQFLAGS
symbol TRACE_IRQFLAGS is selected by RV_MON_SLEEP
symbol RV_MON_SLEEP depends on RV
symbol RV depends on TRACING
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/75bc5bcc741d153aa279c95faf778dff35c5c8ad.1752088709.git.namcao@linutronix.de
Reviewed-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Userspace real-time applications may have design flaws that they raise
page faults in real-time threads, and thus have unexpected latencies.
Add an linear temporal logic monitor to detect this scenario.
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/78fea8a2de6d058241d3c6502c1a92910772b0ed.1752088709.git.namcao@linutronix.de
Reviewed-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Add page fault trace points, which are useful to implement RV monitor that
watches page faults.
Signed-off-by: Nam Cao <namcao@linutronix.de>
Acked-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Add the container "rtapp" which is the monitor collection for detecting
problems with real-time applications. The monitors will be added in the
follow-up commits.
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/fb18b87631d386271de00959d8d4826f23fcd1cd.1752088709.git.namcao@linutronix.de
Reviewed-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
While attempting to implement DA monitors for some complex specifications,
deterministic automaton is found to be inappropriate as the specification
language. The automaton is complicated, hard to understand, and
error-prone.
For these cases, linear temporal logic is more suitable as the
specification language.
Add support for linear temporal logic runtime verification monitor.
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Gabriele Monaco <gmonaco@redhat.com>
Link: https://lore.kernel.org/d366c1fed60ed4e8f6451f3c15a99755f2740b5f.1752088709.git.namcao@linutronix.de
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
CONFIG_DA_MON_EVENTS is not specific to deterministic automaton. It could
be used for other monitor types. Therefore rename it to
CONFIG_RV_MON_EVENTS.
This prepares for the introduction of linear temporal logic monitor.
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/507210517123d887c1d208aa2fd45ec69765d3f0.1752088709.git.namcao@linutronix.de
Reviewed-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Each RV monitor has one static buffer to send to the reactors. If multiple
errors are detected simultaneously, the one buffer could be overwritten.
Instead, leave it to the reactors to handle buffering.
Reviewed-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
vpanic() is useful for implementing runtime verification reactors. Add it.
Signed-off-by: Nam Cao <namcao@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
vprintk_deferred() is useful for implementing runtime verification
reactors. Make it public.
Signed-off-by: Nam Cao <namcao@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Without "#undef TRACE_INCLUDE_FILE", there could be a build error due to
TRACE_INCLUDE_FILE being redefined. Therefore add it.
Also fix a typo while at it.
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/f805e074581e927bb176c742c981fa7675b6ebe5.1752088709.git.namcao@linutronix.de
Reviewed-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
->d_compare() weirdness and parallel lookups
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull /proc/sys dcache lookup fix from Al Viro:
"Fix for the breakage spotted by Neil in the interplay between
/proc/sys ->d_compare() weirdness and parallel lookups"
* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fix proc_sys_compare() handling of in-lookup dentries
preventing realtime tasks from running
- Avoid a race condition during migrate-swapping two tasks
- Fix the string reported for the "none" dynamic preemption option
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Merge tag 'sched_urgent_for_v6.16_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Borislav Petkov:
- Fix the calculation of the deadline server task's runtime as this
mishap was preventing realtime tasks from running
- Avoid a race condition during migrate-swapping two tasks
- Fix the string reported for the "none" dynamic preemption option
* tag 'sched_urgent_for_v6.16_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/deadline: Fix dl_server runtime calculation formula
sched/core: Fix migrate_swap() vs. hotplug
sched: Fix preemption string of preempt_dynamic_none
a missed endianness conversion
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Merge tag 'objtool_urgent_for_v6.16_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fix from Borislav Petkov:
- Fix the compilation of an x86 kernel on a big engian machine due to a
missed endianness conversion
* tag 'objtool_urgent_for_v6.16_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Add missing endian conversion to read_annotate()
destructively modify kernel code from an unprivileged process
- Move a warning to where it belongs
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Merge tag 'perf_urgent_for_v6.16_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Borislav Petkov:
- Revert uprobes to using CAP_SYS_ADMIN again as currently they can
destructively modify kernel code from an unprivileged process
- Move a warning to where it belongs
* tag 'perf_urgent_for_v6.16_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf: Revert to requiring CAP_SYS_ADMIN for uprobes
perf/core: Fix the WARN_ON_ONCE is out of lock protected region
prevents their TSCs from going skewed from the hypervisor's
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Merge tag 'x86_urgent_for_v6.16_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Borislav Petkov:
- Make sure AMD SEV guests using secure TSC, include a TSC_FACTOR which
prevents their TSCs from going skewed from the hypervisor's
* tag 'x86_urgent_for_v6.16_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sev: Use TSC_FACTOR for Secure TSC frequency calculation
- Add a selftests compilation product to the corresponding .gitignore file
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Merge tag 'locking_urgent_for_v6.16_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Borislav Petkov:
- Disable FUTEX_PRIVATE_HASH for this cycle due to a performance
regression
- Add a selftests compilation product to the corresponding .gitignore
file
* tag 'locking_urgent_for_v6.16_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
selftests/futex: Add futex_numa to .gitignore
futex: Temporary disable FUTEX_PRIVATE_HASH
an uninitialized lock class
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Merge tag 'edac_urgent_for_v6.16_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC fix from Borislav Petkov:
- Initialize sysfs attributes properly to avoid lockdep complaining
about an uninitialized lock class
* tag 'edac_urgent_for_v6.16_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC: Initialize EDAC features sysfs attributes
fails due to new/unknown banks present, which in itself is not fatal
anyway; add default names for new banks
- Make sure MCE polling settings are honored after CMCI storms
- Make sure MCE threshold limit is reset after the thresholding interrupt has
been serviced
- Clean up properly and disable CMCI banks on shutdown so that
a second/kexec-ed kernel can rediscover those banks again
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Merge tag 'ras_urgent_for_v6.16_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS fixes from Borislav Petkov:
- Do not remove the MCE sysfs hierarchy if thresholding sysfs nodes
init fails due to new/unknown banks present, which in itself is not
fatal anyway; add default names for new banks
- Make sure MCE polling settings are honored after CMCI storms
- Make sure MCE threshold limit is reset after the thresholding
interrupt has been serviced
- Clean up properly and disable CMCI banks on shutdown so that a
second/kexec-ed kernel can rediscover those banks again
* tag 'ras_urgent_for_v6.16_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce: Make sure CMCI banks are cleared during shutdown on Intel
x86/mce/amd: Fix threshold limit reset
x86/mce/amd: Add default names for MCA banks and blocks
x86/mce: Ensure user polling settings are honored when restarting timer
x86/mce: Don't remove sysfs if thresholding sysfs init fails
futex_numa was never added to the .gitignore file.
Add it.
Fixes: 9140f57c1c ("futex,selftests: Add another FUTEX2_NUMA selftest")
Signed-off-by: Terry Tritton <terry.tritton@linaro.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: André Almeida <andrealmeid@igalia.com>
Link: https://lore.kernel.org/all/20250704103749.10341-1-terry.tritton@linaro.org
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Merge tag 'v6.16-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
- Two reconnect fixes including one for a reboot/reconnect race
- Fix for incorrect file type that can be returned by SMB3.1.1 POSIX
extensions
- tcon initialization fix
- Fix for resolving Windows symlinks with absolute paths
* tag 'v6.16-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
smb: client: fix native SMB symlink traversal
smb: client: fix race condition in negotiate timeout by using more precise timing
cifs: all initializations for tcon should happen in tcon_info_alloc
smb: client: fix warning when reconnecting channel
smb: client: fix readdir returning wrong type with POSIX extensions
- Prevent the Intel RAPL power capping driver from allowing PL1 to be
exceeded by mistake on systems when PL1 cannot be disabled (Zhang
Rui).
- Fix a typo in the ABI documentation (Sumanth Gavini).
- Allow swap to be used a bit longer during system suspend and
hibernation to avoid suspend failures under memory pressure (Mario
Limonciello).
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Merge tag 'pm-6.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These address system suspend failures under memory pressure in some
configurations, fix up RAPL handling on platforms where PL1 cannot be
disabled, and fix a documentation typo:
- Prevent the Intel RAPL power capping driver from allowing PL1 to be
exceeded by mistake on systems when PL1 cannot be disabled (Zhang
Rui)
- Fix a typo in the ABI documentation (Sumanth Gavini)
- Allow swap to be used a bit longer during system suspend and
hibernation to avoid suspend failures under memory pressure (Mario
Limonciello)"
* tag 'pm-6.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: sleep: docs: Replace "diasble" with "disable"
powercap: intel_rapl: Do not change CLAMPING bit if ENABLE bit cannot be changed
PM: Restrict swap use to later in the suspend sequence
Merge fixes related to system sleep for 6.16-rc5:
- Fix typo in the ABI documentation (Sumanth Gavini).
- Allow swap to be used a bit longer during system suspend and
hibernation to avoid suspend failures under memory pressure (Mario
Limonciello).
* pm-sleep:
PM: sleep: docs: Replace "diasble" with "disable"
PM: Restrict swap use to later in the suspend sequence
A couple of fixes for firmware drivers have come up, addressing kernel
side bugs in op-tee and ff-a code, as well as compatibility issues
with exynos-acpm and ff-a protocols.
The only devicetree fixes are for the Apple platform, addressing issues
with conformance to the bindings for the wlan, spi and mipi nodes
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Merge tag 'soc-fixes-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC fixes from Arnd Bergmann:
"A couple of fixes for firmware drivers have come up, addressing kernel
side bugs in op-tee and ff-a code, as well as compatibility issues
with exynos-acpm and ff-a protocols.
The only devicetree fixes are for the Apple platform, addressing
issues with conformance to the bindings for the wlan, spi and mipi
nodes"
* tag 'soc-fixes-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
arm64: dts: apple: Move touchbar mipi {address,size}-cells from dtsi to dts
arm64: dts: apple: Drop {address,size}-cells from SPI NOR
arm64: dts: apple: t8103: Fix PCIe BCM4377 nodename
optee: ffa: fix sleep in atomic context
firmware: exynos-acpm: fix timeouts on xfers handling
arm64: defconfig: update renamed PHY_SNPS_EUSB2
firmware: arm_ffa: Fix the missing entry in struct ffa_indirect_msg_hdr
firmware: arm_ffa: Replace mutex with rwlock to avoid sleep in atomic context
firmware: arm_ffa: Move memory allocation outside the mutex locking
firmware: arm_ffa: Fix memory leak by freeing notifier callback node
* kCFI is restricted to clang-17 or newer, as earlier versions have
known bugs.
* sbi_hsm_hart_start is now staticly allocated, to avoid tripping up the
SBI HSM page mapping on sparse systems.
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Merge tag 'riscv-for-linus-6.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- kCFI is restricted to clang-17 or newer, as earlier versions have
known bugs
- sbi_hsm_hart_start is now staticly allocated, to avoid tripping up
the SBI HSM page mapping on sparse systems.
* tag 'riscv-for-linus-6.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: cpu_ops_sbi: Use static array for boot_data
riscv: Require clang-17 or newer for kCFI
A few driver fixes (the GPIO one being potentially nasty, though it has
been there for a while without anyone reporting it), and one core fix
for the rarely used combination of coupled regulators and unbinding.
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Merge tag 'regulator-fix-v6.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"A few driver fixes (the GPIO one being potentially nasty, though it
has been there for a while without anyone reporting it), and one core
fix for the rarely used combination of coupled regulators and
unbinding"
* tag 'regulator-fix-v6.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: gpio: Fix the out-of-bounds access to drvdata::gpiods
regulator: mp886x: Fix ID table driver_data
regulator: sy8824x: Fix ID table driver_data
regulator: tps65219: Fix devm_kmalloc size allocation
regulator: core: fix NULL dereference on unbind due to stale coupling data
As well as a few driver specific fixes we've got a core change here
which raises the hard coded limit on the number of devices we can
support on one SPI bus since some FPGA based systems are running into
the existing limit. This is not a good solution but it's one suitable
for this point in the release cycle, we should dynamically size the
relevant data structures which I hope will happen in the next couple of
merge windows.
We also pull in a MTD fix for the Qualcomm SNAND driver, the two fixes
cover the same issue and merging them together minimises bisection
issues.
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Merge tag 'spi-fix-v6.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"As well as a few driver specific fixes we've got a core change here
which raises the hard coded limit on the number of devices we can
support on one SPI bus since some FPGA based systems are running into
the existing limit. This is not a good solution but it's one suitable
for this point in the release cycle, we should dynamically size the
relevant data structures which I hope will happen in the next couple
of merge windows.
We also pull in a MTD fix for the Qualcomm SNAND driver, the two fixes
cover the same issue and merging them together minimises bisection
issues"
* tag 'spi-fix-v6.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: cadence-quadspi: fix cleanup of rx_chan on failure paths
spi: spi-fsl-dspi: Clear completion counter before initiating transfer
spi: Raise limit on number of chip selects to 24
mtd: nand: qpic_common: prevent out of bounds access of BAM arrays
spi: spi-qpic-snand: reallocate BAM transactions
Fixes and New HW Support
- amd/isp4: Improve swnode graph (new driver exception)
- asus-nb-wmi: Use duo keyboard quirk for Zenbook Duo UX8406CA
- dell-lis3lv02d: Add Latitude 5500 accelerometer address
- dell-wmi-sysman: Fix WMI data block retrieval and class dev unreg
- hp-bioscfg: Fix class device unregistration
- i2c: piix4: Re-enable on non-x86 + move FCH header under platform_data/
- intel/hid: Wildcat Lake support
- mellanox:
- mlxbf-pmc: Fix duplicate event ID
- mlxbf-tmfifo: Fix vring_desc.len assignment
- mlxreg-lc: Fix bit-not-set logic check
- nvsw-sn2201: Fix bus number in error message & spelling errors
- portwell-ec: Move watchdog device under correct platform hierarchy
- think-lmi: Error handling fixes (sysfs, kset, kobject, class dev unreg)
- thinkpad_acpi: Handle HKEY 0x1402 event (2025 Thinkpads)
- wmi: Fix WMI event enablement
The following is an automated shortlog grouped by driver:
asus-nb-wmi:
- add DMI quirk for ASUS Zenbook Duo UX8406CA
dell-lis3lv02d:
- Add Latitude 5500
dell-wmi-sysman:
- Fix class device unregistration
- Fix WMI data block retrieval in sysfs callbacks
hp-bioscfg:
- Fix class device unregistration
i2c:
- Re-enable piix4 driver on non-x86
intel/hid:
- Add Wildcat Lake support
mellanox:
- Fix spelling and comment clarity in Mellanox drivers
mlxbf-pmc:
- Fix duplicate event ID for CACHE_DATA1
mlxbf-tmfifo:
- fix vring_desc.len assignment
mlxreg-lc:
- Fix logic error in power state check
Move FCH header to a location accessible by all archs:
- Move FCH header to a location accessible by all archs
nvsw-sn2201:
- Fix bus number in adapter error message
portwell-ec:
- Move watchdog device under correct platform hierarchy
think-lmi:
- Create ksets consecutively
- Fix class device unregistration
- Fix kobject cleanup
- Fix sysfs group cleanup
thinkpad_acpi:
- handle HKEY 0x1402 event
Update swnode graph for amd isp4:
- Update swnode graph for amd isp4
wmi:
- Fix WMI event enablement
- Update documentation of WCxx/WExx ACPI methods
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Merge tag 'platform-drivers-x86-v6.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform drivers fixes from Ilpo Järvinen:
"Mostly a few lines fixed here and there except amd/isp4 which improves
swnodes relationships but that is a new driver not in any stable
kernels yet. The think-lmi driver changes also look relatively large
but there are just many fixes to it.
The i2c/piix4 change is a effectively a revert of the commit
7e173eb82a ("i2c: piix4: Make CONFIG_I2C_PIIX4 dependent on
CONFIG_X86") but that required moving the header out from arch/x86
under include/linux/platform_data/
Summary:
- amd/isp4: Improve swnode graph (new driver exception)
- asus-nb-wmi: Use duo keyboard quirk for Zenbook Duo UX8406CA
- dell-lis3lv02d: Add Latitude 5500 accelerometer address
- dell-wmi-sysman: Fix WMI data block retrieval and class dev unreg
- hp-bioscfg: Fix class device unregistration
- i2c: piix4: Re-enable on non-x86 + move FCH header under platform_data/
- intel/hid: Wildcat Lake support
- mellanox:
- mlxbf-pmc: Fix duplicate event ID
- mlxbf-tmfifo: Fix vring_desc.len assignment
- mlxreg-lc: Fix bit-not-set logic check
- nvsw-sn2201: Fix bus number in error message & spelling errors
- portwell-ec: Move watchdog device under correct platform hierarchy
- think-lmi: Error handling fixes (sysfs, kset, kobject, class dev unreg)
- thinkpad_acpi: Handle HKEY 0x1402 event (2025 Thinkpads)
- wmi: Fix WMI event enablement"
* tag 'platform-drivers-x86-v6.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (22 commits)
platform/x86: think-lmi: Fix sysfs group cleanup
platform/x86: think-lmi: Fix kobject cleanup
platform/x86: think-lmi: Create ksets consecutively
platform/mellanox: mlxreg-lc: Fix logic error in power state check
i2c: Re-enable piix4 driver on non-x86
Move FCH header to a location accessible by all archs
platform/x86/intel/hid: Add Wildcat Lake support
platform/x86: dell-wmi-sysman: Fix class device unregistration
platform/x86: think-lmi: Fix class device unregistration
platform/x86: hp-bioscfg: Fix class device unregistration
platform/x86: Update swnode graph for amd isp4
platform/x86: dell-wmi-sysman: Fix WMI data block retrieval in sysfs callbacks
platform/x86: wmi: Update documentation of WCxx/WExx ACPI methods
platform/x86: wmi: Fix WMI event enablement
platform/mellanox: nvsw-sn2201: Fix bus number in adapter error message
platform/mellanox: Fix spelling and comment clarity in Mellanox drivers
platform/mellanox: mlxbf-pmc: Fix duplicate event ID for CACHE_DATA1
platform/x86: thinkpad_acpi: handle HKEY 0x1402 event
platform/x86: asus-nb-wmi: add DMI quirk for ASUS Zenbook Duo UX8406CA
platform/x86: dell-lis3lv02d: Add Latitude 5500
...
Here are some USB driver fixes for 6.16-rc5. I originally wanted this
to get into -rc4, but there were some regressions that had to be handled
first. Now all looks good. Included in here are the following fixes:
- cdns3 driver fixes
- xhci driver fixes
- typec driver fixes
- USB hub fixes (this is what took the longest to get right)
- new USB driver quirks added
- chipidea driver fixes
All of these have been in linux-next for a while and now we have no more
reported problems with them.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some USB driver fixes for 6.16-rc5. I originally wanted this
to get into -rc4, but there were some regressions that had to be
handled first. Now all looks good. Included in here are the following
fixes:
- cdns3 driver fixes
- xhci driver fixes
- typec driver fixes
- USB hub fixes (this is what took the longest to get right)
- new USB driver quirks added
- chipidea driver fixes
All of these have been in linux-next for a while and now we have no
more reported problems with them"
* tag 'usb-6.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (21 commits)
usb: hub: Fix flushing of delayed work used for post resume purposes
xhci: dbc: Flush queued requests before stopping dbc
xhci: dbctty: disable ECHO flag by default
xhci: Disable stream for xHC controller with XHCI_BROKEN_STREAMS
usb: xhci: quirk for data loss in ISOC transfers
usb: dwc3: gadget: Fix TRB reclaim logic for short transfers and ZLPs
usb: hub: Fix flushing and scheduling of delayed work that tunes runtime pm
usb: typec: displayport: Fix potential deadlock
usb: typec: altmodes/displayport: do not index invalid pin_assignments
usb: cdnsp: Fix issue with CV Bad Descriptor test
usb: typec: tcpm: apply vbus before data bringup in tcpm_src_attach
Revert "usb: xhci: Implement xhci_handshake_check_state() helper"
usb: xhci: Skip xhci_reset in xhci_resume if xhci is being removed
usb: gadget: u_serial: Fix race condition in TTY wakeup
Revert "usb: gadget: u_serial: Add null pointer check in gs_start_io"
usb: chipidea: udc: disconnect/reconnect from host when do suspend/resume
usb: acpi: fix device link removal
usb: hub: fix detection of high tier USB3 devices behind suspended hubs
Logitech C-270 even more broken
usb: dwc3: Abort suspend on soft disconnect failure
...
- support for Acer NGR 200 Controller added to xpad driver
- xpad driver will no longer log errors about URBs at sudden disconnect
- a fix for potential NULL dereference in cs40l50-vibra driver
- several drivers have been switched to using scnprintf() to suppress
warnings about potential output truncation
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Merge tag 'input-for-v6.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- support for Acer NGR 200 Controller added to xpad driver
- xpad driver will no longer log errors about URBs at sudden disconnect
- a fix for potential NULL dereference in cs40l50-vibra driver
- several drivers have been switched to using scnprintf() to suppress
warnings about potential output truncation
* tag 'input-for-v6.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: cs40l50-vibra - fix potential NULL dereference in cs40l50_upload_owt()
Input: alps - use scnprintf() to suppress truncation warning
Input: iqs7222 - explicitly define number of external channels
Input: xpad - support Acer NGR 200 Controller
Input: xpad - return errors from xpad_try_sending_next_out_packet() up
Input: xpad - adjust error handling for disconnect
Input: apple_z2 - drop default ARCH_APPLE in Kconfig
Input: Fully open-code compatible for grepping
dt-bindings: HID: i2c-hid: elan: Introduce Elan eKTH8D18
Input: psmouse - switch to use scnprintf() to suppress truncation warning
Input: lifebook - switch to use scnprintf() to suppress truncation warning
Input: alps - switch to use scnprintf() to suppress truncation warning
Input: atkbd - switch to use scnprintf() to suppress truncation warning
Input: fsia6b - suppress buffer truncation warning for phys
Input: iqs626a - replace snprintf() with scnprintf()
