[PATCH] [RFC]ARM: ftrace: pause/unpause function graph tracer in cpu_suspend()

Hi Russell On Wed, 24 Feb 2021 at 19:20, Russell King - ARM Linux admin wrote: > > On Wed, Feb 24, 2021 at 07:14:54PM +0800, liang wang wrote: > > Hi Russell, > > > > On Wed, 24 Feb 2021 at 18:39, Russell King - ARM Linux admin > > wrote: > > > > > > On Wed, Feb 24, 2021 at 06:35:47PM +0800,

Re: [PATCH] [RFC]ARM: ftrace: pause/unpause function graph tracer in cpu_suspend()

On Wed, Feb 24, 2021 at 07:14:54PM +0800, liang wang wrote: > Hi Russell, > > On Wed, 24 Feb 2021 at 18:39, Russell King - ARM Linux admin > wrote: > > > > On Wed, Feb 24, 2021 at 06:35:47PM +0800, liang wang wrote: > > > Hi,all > > > > > > ftrace function_graph tracer always cause kernel panic

Re: [PATCH] [RFC]ARM: ftrace: pause/unpause function graph tracer in cpu_suspend()

Hi Russell, On Wed, 24 Feb 2021 at 18:39, Russell King - ARM Linux admin wrote: > > On Wed, Feb 24, 2021 at 06:35:47PM +0800, liang wang wrote: > > Hi,all > > > > ftrace function_graph tracer always cause kernel panic on my ARM device with > > multiple CPUs, I found a solution for the problem on

Re: [PATCH] [RFC]ARM: ftrace: pause/unpause function graph tracer in cpu_suspend()

On Wed, Feb 24, 2021 at 06:35:47PM +0800, liang wang wrote: > Hi,all > > ftrace function_graph tracer always cause kernel panic on my ARM device with > multiple CPUs, I found a solution for the problem on ARM64, refers to > the patch above, > I was wondering why this bugfix on ARM64 hasn't been

[PATCH] [RFC]ARM: ftrace: pause/unpause function graph tracer in cpu_suspend()

Hi,all On Mon, 4 Jan 2021 at 13:35, Louis Wang wrote: > > From: "louis.wang1" > > Enabling function_graph tracer on ARM causes kernel panic, because the > function graph tracer updates the "return address" of a function in order > to insert a trace callback on function exit, it saves the