Lockdep_assert_irqs_disabled

Author: bpto

August undefined, 2024

Witrynaacquired while irqs disabled and not in irq context ‘- ... As the name suggests, lockdep_assert_held* family of macros assert that a particular lock is held at a … WitrynaWe. * hash the hashes step by step as the dependency chain grows. *. * We use it for dependency-caching and we skip detection. * passes and dependency-updates if …

[PATCH v3] KVM: VMX: fix lockdep warning on posted intr wakeup

WitrynaThe lockdep annotation below already check if the lock has been acquired by the caller and will yell if the interrupts are not disabled. Remove the !irqs_disabled() check. WitrynaIf lockdep is enabled the local_lock gains a lockmap which allows to validate the correctness of the protection. This can detect cases where e.g. a function using preempt_disable() as protection mechanism is invoked from interrupt or soft-interrupt context. Aside of that lockdep_assert_held(&llock) works as with any other locking … crab places on liberty road

Re: [PATCH] lockdep: Have assert functions test for actual …

Witryna4 maj 2024 · lockdep_assert_irqs_disabled(); if (rq_order_less(rq2, rq1)) swap(rq1, rq2); raw_spin_rq_lock(rq1); if (rq_lockp(rq1) == rq_lockp(rq2)) return; … Witrynakmap_assert_nomap(); lockdep_assert_irqs_disabled(); lockdep_sys_exit();} /* * If SYSCALL_EMU is set, then the only reason to report is when * SINGLESTEP is set … WitrynaLinux debugging, tracing, profiling & perf. analysis. Check our new training course. with Creative Commons CC-BY-SA crabpls emote

linux/umwait.c at master · torvalds/linux · GitHub

Linux 死锁检测模块 Lockdep 简介 - 魅族内核团队 - Meizu

Witryna18 lip 2016 · To enable lockdep feature, edit .config file through menuconfig: make menuconfig. And enable following in Hacking Options: 1. [*] Detect Hard and Soft … Witrynaacquired while irqs disabled and not in irq context ‘- ... As the name suggests, lockdep_assert_held* family of macros assert that a particular lock is held at a certain time (and generate a WARN() otherwise). This annotation is largely used all over the kernel, e.g. kernel/sched/ core.c: ... ditch witch of nashvilleWitrynaExtend the lockdep API with macros asserting that preemption is disabled or enabled. If lockdep is disabled, or if the underlying architecture does not support kernel … ditch witch of new mexico jobs

"WitrynaIf lockdep is enabled the local_lock gains a lockmap which allows to validate the correctness of the protection. This can detect cases where e.g. a function using … " - Lockdep_assert_irqs_disabled

Lockdep_assert_irqs_disabled

How to use lockdep feature in linux kernel for deadlock detection

Witrynalockdep_assert_irqs_disabled(); wrmsr(MSR_IA32_UMWAIT_CONTROL, READ_ONCE(umwait_control_cached), 0);} /* * The CPU hotplug callback sets the control MSR to the global control * value. * * Disable interrupts so the read of umwait_control_cached and the WRMSR * are protected against a concurrent sysfs … WitrynaLKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH] lockdep: Have assert functions test for actual interrupts disabled @ 2024-08-07 1:41 Steven …

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WitrynaIf lockdep is enabled the local_lock gains a lockmap which allows to validate the correctness of the protection. This can detect cases where e.g. a function using … Witryna9 lut 2013 · Get a virtual cloud desktop with the Linux distro that you want in less than five minutes with Shells! With over 10 pre-installed distros to choose from, the worry …

WitrynaInterrupt pipeline for PowerPC (32bit) Witryna>> Also an irq disable probe that does a lockdep assert that irqs are >> disabled could trigger it? >> > >You mean if someone add a tracepoint callback to the irq disable >tracepoint, and did a lockdep assert to make sure interrupts are >disabled? Yes that's what I meant. Thanks, - Joel -- Sent from my Android device with K-9 Mail.

Witryna27 maj 2024 · On Thu, May 27, 2024 at 01:34:41PM +0200, Frederic Weisbecker wrote: > Checking for and processing RCU-nocb deferred wakeup upon user/guest > entry is only relevant when nohz_full runs on the local CPU, otherwise Witryna[PREEMPT_RT PATCH 2/3] i915: convert all irq_locks spinlocks to raw spinlocks From: Clark Williams Date: Mon Aug 19 2024 - 20:33:36 EST Next message: Clark Williams: "[PREEMPT_RT PATCH 3/3] i915: convert uncore lock to raw spinlock" Previous message: Clark Williams: "[PREEMPT_RT PATCH 1/3] i915: do not call …

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Witryna8 sie 2024 · RCU grace periods provide extremely strong memory-ordering guarantees for non-idle non-offline code. Any code that happens after the end of a given RCU grace period is guaranteed to see the effects of all accesses prior to the beginning of that grace period that are within RCU read-side critical sections. Similarly, any code that … crabpng twitterWitrynaWhile looking at current_save_and_set_rtlock_wait_state() I'm thinking it really ought to use smp_store_mb(), because something like: current_save_and_set_rtlock_wait_state(); ditch witch of north dakotaWitryna2 kwi 2024 · 985427f997b6a3 Maulik Shah 2024-04-12 @441 lockdep_assert_irqs_disabled(); 985427f997b6a3 Maulik Shah 2024-04-12 442 d2a8cfc6f32026 Douglas Anderson 2024-05-04 443 /* d2a8cfc6f32026 Douglas Anderson 2024-05-04 444 * Currently rpmh_flush() is only called when we think we're … crab places in yakima waWitryna* [PATCH v2 1/4] lockdep: Add assertion to check if in an interrupt @ 2024-03-26 19:24 Joel Fernandes (Google) 2024-03-26 19:24 ` [PATCH v2 2/4] rcutree: Add checks for dynticks counters in rcu_is_cpu_rrupt_from_idle Joel Fernandes (Google) ` (2 more replies) 0 siblings, 3 replies; 11+ messages in thread From: Joel Fernandes (Google) … ditch witch of okWitryna5 kwi 2024 · Mathieu Desnoyers <>. Subject. [RFC PATCH v3] sched: Fix performance regression introduced by mm_cid. Date. Wed, 5 Apr 2024 12:26:35 -0400. share. Introduce per-mm/cpu current concurrency id (mm_cid) to fix a PostgreSQL. sysbench regression reported by Aaron Lu. Keep track of the currently allocated mm_cid for … crab point park morehead city ncWitrynaIs bisection a possibility? Failing that, please see the updated patch below. This adds a few more calls to lockdep_assert_irqs_disabled(), but perhaps more helpfully dumps the current stack of the CPU that the RCU grace-period kthread wants to run on in the case where this kthread has been starved of CPU. crab playing guitarWitryna2 lut 2024 · As for lockdep_assert_held call inside update_rq_clock, it actually requires update_rq_clock to be called with the lock taken. But.. the question post is about … ditch witch of oklahoma city