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Irqd_irq_inprogress

WebJul 27, 2024 · Must be set to the constant value IRQType_Range. One bit flag from each of the flag sets described in the following table. The IRQ line cannot be shared. The IRQ line can be shared. Bitmask for the bits within IRQD_Flags that specify the sharing value. The IRQ line is level-triggered. The IRQ line is edge-triggered. Webirqd_irq_inprogress()是判断irq是否设置了IRQD_IRQ_INPROGRESS 标志位。标识hardirq thread正在执行，IRQD_IRQ_INPROGRESS在handle_irq_event()执行开始设置，等到handle_irq_event_percpu()执行完毕之后，同样在handle_irq_event()之后清除。因此hardirq handler执行结束之前系统不会睡眠。

[PATCH] irq: fasteoi handler re-runs on concurrent invoke

* IRQD_IRQ_STARTED - Startup state of the interrupt * IRQD_MANAGED_SHUTDOWN - Interrupt was shutdown due to empty affinity * mask. Applies only to affinity managed irqs. * IRQD_SINGLE_TARGET - IRQ allows only a single affinity target * IRQD_DEFAULT_TRIGGER_SET - Expected trigger already been set * IRQD_CAN_RESERVE - Can use reservation mode Web* IRQD_IRQ_MASKED - Masked state of the interrupt * IRQD_IRQ_INPROGRESS - In progress state of the interrupt * IRQD_WAKEUP_ARMED - Wakeup mode armed * IRQD_FORWARDED_TO_VCPU - The interrupt is forwarded to a VCPU * IRQD_AFFINITY_MANAGED - Affinity is auto-managed by the kernel * IRQD_IRQ_STARTED … scouts gdpr training online https://simul-fortes.com

[PATCH] KVM: arm64: vgic: Fix soft lockup during VM …

Webwhile (irqd_irq_inprogress (&desc-> irq_data)) cpu_relax (); /* Ok, that indicated we're done: double-check carefully. */ raw_spin_lock_irqsave (&desc-> lock, flags); inprogress = … WebSign in. android / kernel / omap / glass-omap-xrv87 / . / kernel / irq / manage.c. blob: 3d1bbbcc2923df794ec1cc70b409b5390af919d6 [] [] [] scouts getting back together

96051 – key trace event symbols not exported - Linux kernel

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Irqd_irq_inprogress

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WebJan 18, 2024 · The irqd_set_activated () execution path is reading memory 'state_use_accessors' in between set & clear of IRQD_IRQ_INPROGRESS state change and … WebThe function __synchronize_hardirq() has been waiting for IRQD_IRQ_INPROGRESS to be cleared forever as per the current implementation. CPU stuck here for a long time leads to soft lockup: while (irqd_irq_inprogress(&desc->irq_data)) cpu_relax(); Call trace from the lockup CPU: [ 87.238866] watchdog: BUG: soft lockup - CPU#37 stuck for 23s!

Irqd_irq_inprogress

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WebMar 24, 2024 · > irqd_clear(&desc->irq_data, IRQD_IRQ_INPROGRESS); > return ret; > } > > It took ~3 ms for this raw_spin_lock() to lock. That's quite a large indeed. > During this time irq_finalize_oneshot() from kernel/irq/manage.c locks and > unlocks the same raw spin lock more than 1000 times: > > static void irq_finalize_oneshot(struct irq_desc *desc, WebJan 17, 2024 · The irqd_set_activated() execution path is reading memory 'state_use_accessors' in between set & clear of IRQD_IRQ_INPROGRESS state change and …

http://www.bricktou.com/kernel/irq/chiphandle_nested_irq_en.html WebJan 17, 2024 · irqd_set(&desc->irq_data, IRQD_IRQ_INPROGRESS); raw_spin_unlock(&desc->lock); ret = handle_irq_event_percpu(desc); raw_spin_lock(&desc->lock); irqd_clear(&desc …

WebApr 2, 2015 · Kernel.org Bugzilla – Bug 96051 key trace event symbols not exported Last modified: 2024-01-10 15:47:22 UTC WebIRQ, and then ack IRQ (usually associated with mask_ack_irq). Even if the device sends an interrupt request again, the handle_irq_event ends and the irq_inprogress mark is cleared after unmask IRQ. I don't know if other systems like x86 have different behaviors. If you know something, please let me know.

WebApr 28, 2015 · 设置中断描述符的状态为IRQD_IRQ_INPROGRESS：在SMP系统中，同一个中断信号有可能发往多个CPU，但是中断处理只应该处理一次，所以设置状态 …

http://visa.lab.asu.edu/gitlab/fstrace/android-kernel-msm-hammerhead-3.4-marshmallow-mr3/blob/2d7b53a81335b57a16a75ec0990d7fb598f4ddc9/include/linux/irq.h scouts getting startedWebMay 10, 2024 · manage.c - kernel/irq/manage.c - Linux source code (v6.2.5) - Bootlin. Elixir Cross Referencer - Explore source code in your browser - Particularly useful for the Linux … scouts germantown nashvilleWebirqd_clear(&desc->irq_data, IRQD_IRQ_INPROGRESS); return ret;} It took ~3 ms for this raw_spin_lock() to lock. During this time irq_finalize_oneshot() from kernel/irq/manage.c locks and unlocks the same raw spin lock more than 1000 times: static void irq_finalize_oneshot(struct irq_desc *desc, struct irqaction *action) scouts germany