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authorDaniel Thompson <daniel.thompson@linaro.org>2015-01-12 15:42:24 +0000
committerDaniel Thompson <daniel.thompson@linaro.org>2015-07-03 15:54:12 +0100
commit887ac63d67bf319e5dc54e491fbc518bee73712b (patch)
treeff48aa4886720d783faec52b116026d866664214 /arch/x86/Kconfig
parenta9021c82a05d96b019a52d53ade4d6584abdfb0d (diff)
printk: Simple implementation for NMI backtracing
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, reworking it a little as we do so to make it easier to exploit as library code. We'll port the x86 NMI backtrace logic to it in a later patch. Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> Cc: Steven Rostedt <rostedt@goodmis.org>
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