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Irqd_irq_inprogress

Webkernel/irq/chip.c · 2760f7adbb6c4e39bd3ae733f56d4ac8fb5e3521 · fstrace / android-kernel-msm-hammerhead-3.4-marshmallow-mr3 · GitLab Linux kernel for Nexus 5 … http://visa.lab.asu.edu/gitlab/fstrace/android-kernel-msm-hammerhead-3.4-marshmallow-mr3/blob/2760f7adbb6c4e39bd3ae733f56d4ac8fb5e3521/kernel/irq/chip.c

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WebMay 10, 2024 · This might * give the wrong answer due to the lack of memory barriers. */ while (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 = irqd_irq_inprogress (& desc-> irq_data); /* * If requested and supported, check at the ... http://www.wowotech.net/irq_subsystem/irq_handle_procedure.html/comment-page-2 biocompatibility evaluation report template https://americlaimwi.com

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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 … WebThat activation must happen* independently of IRQ_NOAUTOEN. request_irq() can fail* and the callers are supposed to handle* that. enable_irq() of an interrupt requested with* IRQ_NOAUTOEN is not supposed to fail. The activation* keeps it in shutdown mode, it merily associates* resources if necessary and if that's not possible it* fails. WebJan 19, 2024 · Are there any other possibilities of corrupting IRQD_IRQ_INPROGRESS state bit other than concurrent accesses? I did another experiment, changed the bit manipulation of the IRQD state to atomic operations, the issue is not reproducible. struct irq_common_data d a harris lawyers

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Irqd_irq_inprogress

indicates whether irqd_set_trigger_type has been called, 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! 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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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 … 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 …

WebMar 24, 2024 · irqd_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 … http://visa.lab.asu.edu/gitlab/fstrace/android-kernel-msm-hammerhead-3.4-marshmallow-mr3/blob/2d7b53a81335b57a16a75ec0990d7fb598f4ddc9/include/linux/irq.h

WebName:handle_nested_irq - Handle a nested irq from a irq thread*@irq: the interrupt number* Handle interrupts which are nested into a threaded interrupt* handler. The handler … WebThese are the top rated real world C++ (Cpp) examples of irq_to_desc extracted from open source projects. You can rate examples to help us improve the quality of examples. …

WebThis enables support. * for modern forms of interrupt handlers, which handle the flow. * details in hardware, transparently. */. void handle_fasteoi_nmi ( struct irq_desc *desc) {. struct irq_chip *chip = irq_desc_get_chip (desc); struct irqaction *action = desc-> action; unsigned int irq = irq_desc_get_irq (desc);

WebLKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH] irq: fasteoi handler re-runs on concurrent invoke @ 2024-03-17 9:53 James Gowans 2024-03-17 10:12 ` Yipeng Zou 2024-04-09 11:41 ` Marc Zyngier 0 siblings, 2 replies; 13+ messages in thread From: James Gowans @ 2024-03-17 9:53 UTC (permalink / raw) To: Thomas Gleixner Cc: … d.a. hardt heating and coolingdahanu railway stationWeb• handle_fasteoi_irq • handle_edge_irq • handle_percpu_irq Each of these sets the IRQ descriptor’s status flag IRQ_INPROGRESS, and then calls redirect_ hardirq(). redirect_hardirq()checksifthreadedinterrupts are enabled, and if the current IRQ is threaded (the IRQ flag IRQ_NODELAY is not set) then the associ-ated thread (do_irqd) is ... biocompatibility meaning in hindiWeb> 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 ... biocompatibility isoWebMar 29, 2024 · IRQD_IRQ_INPROGRESS = (1 << 18), IRQD_WAKEUP_ARMED = (1 << 19), IRQD_FORWARDED_TO_VCPU = (1 << 20), + IRQD_DEFAULT_TRIGGER_SET = (1 << 25),}; … biocompatibility of graphene oxidehttp://www.bricktou.com/kernel/irq/chiphandle_nested_irq_en.html d a harrison ltdWebApr 2, 2015 · Kernel.org Bugzilla – Bug 96051 key trace event symbols not exported Last modified: 2024-01-10 15:47:22 UTC dahan webseries download free