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From: Joe Perches <joe@perches.com>
To: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Jason Cooper <jason@lakedaemon.net>,
Russell King <linux@arm.linux.org.uk>,
Will Deacon <will.deacon@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Marc Zyngier <marc.zyngier@arm.com>,
Stephen Boyd <sboyd@codeaurora.org>,
John Stultz <john.stultz@linaro.org>,
Steven Rostedt <rostedt@goodmis.org>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, patches@linaro.org,
linaro-kernel@lists.linaro.org,
Sumit Semwal <sumit.semwal@linaro.org>,
Dirk Behme <dirk.behme@de.bosch.com>,
Daniel Drake <drake@endlessm.com>,
Dmitry Pervushin <dpervushin@gmail.com>,
Tim Sander <tim@krieglstein.org>
Subject: Re: [PATCH 4.0-rc1 v17 4/6] printk: Simple implementation for NMI backtracing
Date: Wed, 04 Mar 2015 08:13:21 -0800 [thread overview]
Message-ID: <1425485601.2712.9.camel@perches.com> (raw)
In-Reply-To: <1425463974-23568-5-git-send-email-daniel.thompson@linaro.org>
On Wed, 2015-03-04 at 10:12 +0000, Daniel Thompson wrote:
> Currently there is a quite a pile of code sitting in
> arch/x86/kernel/apic/hw_nmi.c to support safe all-cpu backtracing from NMI.
> The code is inaccessible to backtrace implementations for other
> architectures, which is a shame because they would probably like to be
> safe too.
>
> Copy this code into printk. We'll port the x86 NMI backtrace to it in a
> later patch.
I think this would be better as a separate file
rather than increasing the bulk of printk.c
next prev parent reply other threads:[~2015-03-04 16:13 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-23 14:22 [PATCH 3.19-rc2 v15 0/8] irq/arm: Implement arch_trigger_all_cpu_backtrace Daniel Thompson
2015-01-23 14:22 ` [PATCH 3.19-rc2 v15 1/8] irqchip: gic: Optimize locking in gic_raise_softirq Daniel Thompson
2015-01-23 14:22 ` [PATCH 3.19-rc2 v15 2/8] irqchip: gic: Make gic_raise_softirq FIQ-safe Daniel Thompson
2015-01-23 14:22 ` [PATCH 3.19-rc2 v15 3/8] irqchip: gic: Introduce plumbing for IPI FIQ Daniel Thompson
2015-01-23 14:22 ` [PATCH 3.19-rc2 v15 4/8] sched_clock: Avoid deadlock during read from NMI Daniel Thompson
2015-01-24 22:40 ` Thomas Gleixner
2015-01-26 20:28 ` Daniel Thompson
2015-01-23 14:22 ` [PATCH 3.19-rc2 v15 5/8] printk: Simple implementation for NMI backtracing Daniel Thompson
2015-01-24 21:44 ` Thomas Gleixner
2015-01-26 17:21 ` Daniel Thompson
2015-01-23 14:22 ` [PATCH 3.19-rc2 v15 6/8] x86/nmi: Use common printk functions Daniel Thompson
2015-01-23 14:22 ` [PATCH 3.19-rc2 v15 7/8] ARM: Add support for on-demand backtrace of other CPUs Daniel Thompson
2015-01-23 14:22 ` [PATCH 3.19-rc2 v15 8/8] ARM: Fix on-demand backtrace triggered by IRQ Daniel Thompson
2015-02-03 19:06 ` [PATCH 3.19-rc6 v16 0/6] irq/arm: Implement arch_trigger_all_cpu_backtrace Daniel Thompson
2015-02-03 19:06 ` [PATCH 3.19-rc6 v16 1/6] irqchip: gic: Optimize locking in gic_raise_softirq Daniel Thompson
2015-02-26 20:31 ` Nicolas Pitre
2015-02-26 21:05 ` Daniel Thompson
2015-02-26 21:33 ` Nicolas Pitre
2015-02-03 19:06 ` [PATCH 3.19-rc6 v16 2/6] irqchip: gic: Make gic_raise_softirq FIQ-safe Daniel Thompson
2015-02-26 20:33 ` Nicolas Pitre
2015-02-03 19:06 ` [PATCH 3.19-rc6 v16 3/6] irqchip: gic: Introduce plumbing for IPI FIQ Daniel Thompson
2015-02-03 19:06 ` [PATCH 3.19-rc6 v16 4/6] printk: Simple implementation for NMI backtracing Daniel Thompson
2015-02-03 19:06 ` [PATCH 3.19-rc6 v16 5/6] x86/nmi: Use common printk functions Daniel Thompson
2015-02-03 19:06 ` [PATCH 3.19-rc6 v16 6/6] ARM: Add support for on-demand backtrace of other CPUs Daniel Thompson
2015-03-04 10:12 ` [PATCH 4.0-rc1 v17 0/6] irq/arm: Implement arch_trigger_all_cpu_backtrace Daniel Thompson
2015-03-04 10:12 ` [PATCH 4.0-rc1 v17 1/6] irqchip: gic: Optimize locking in gic_raise_softirq Daniel Thompson
2015-03-04 10:12 ` [PATCH 4.0-rc1 v17 2/6] irqchip: gic: Make gic_raise_softirq FIQ-safe Daniel Thompson
2015-03-04 10:12 ` [PATCH 4.0-rc1 v17 3/6] irqchip: gic: Introduce plumbing for IPI FIQ Daniel Thompson
2015-03-04 10:12 ` [PATCH 4.0-rc1 v17 4/6] printk: Simple implementation for NMI backtracing Daniel Thompson
2015-03-04 16:13 ` Joe Perches [this message]
2015-03-04 16:20 ` Steven Rostedt
2015-03-04 16:33 ` Daniel Thompson
2015-03-04 17:21 ` Joe Perches
2015-03-05 12:11 ` Daniel Thompson
2015-03-04 10:12 ` [PATCH 4.0-rc1 v17 5/6] x86/nmi: Use common printk functions Daniel Thompson
2015-03-05 0:54 ` Ingo Molnar
2015-03-05 12:29 ` Daniel Thompson
2015-03-05 19:46 ` Ingo Molnar
2015-03-06 19:02 ` Daniel Thompson
2015-03-04 10:12 ` [PATCH 4.0-rc1 v17 6/6] ARM: Add support for on-demand backtrace of other CPUs Daniel Thompson
2015-03-12 13:39 ` [PATCH 4.0-rc2 v18 0/6] irq/arm: Implement arch_trigger_all_cpu_backtrace Daniel Thompson
2015-03-12 13:39 ` [PATCH 4.0-rc2 v18 1/6] irqchip: gic: Optimize locking in gic_raise_softirq Daniel Thompson
2015-03-12 13:39 ` [PATCH 4.0-rc2 v18 2/6] irqchip: gic: Make gic_raise_softirq FIQ-safe Daniel Thompson
2015-03-12 13:39 ` [PATCH 4.0-rc2 v18 3/6] irqchip: gic: Introduce plumbing for IPI FIQ Daniel Thompson
2015-03-12 13:39 ` [PATCH 4.0-rc2 v18 4/6] printk: Simple implementation for NMI backtracing Daniel Thompson
2015-03-12 13:39 ` [PATCH 4.0-rc2 v18 5/6] x86/nmi: Use common printk functions Daniel Thompson
2015-03-12 13:39 ` [PATCH 4.0-rc2 v18 6/6] ARM: Add support for on-demand backtrace of other CPUs Daniel Thompson
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