On Mon, Dec 17, 2018 at 09:52:04AM +0530, Amit Daniel Kachhap wrote:
> There is no error message or crash but no useful output like below,
>
> /sys/kernel/tracing # echo wake_up_process > set_graph_function
> /sys/kernel/tracing # echo function_graph > current_tracer
> /sys/kernel/tracing # cat
On Mon, Dec 17, 2018 at 09:52:04AM +0530, Amit Daniel Kachhap wrote:
> There is no error message or crash but no useful output like below,
>
> /sys/kernel/tracing # echo wake_up_process > set_graph_function
> /sys/kernel/tracing # echo function_graph > current_tracer
> /sys/kernel/tracing # cat
Hi,
On Sat, Dec 15, 2018 at 6:14 PM Torsten Duwe wrote:
>
> On Fri, 14 Dec 2018 21:45:03 +0530
> Amit Daniel Kachhap wrote:
>
> > Sorry I didn't mention my environment. I am using 4.20-rc3 and it has
> > all the above 8 extra patches
> > mentioned by you.
>
> So that should be fine.
ok thanks.
>
On Fri, 14 Dec 2018 21:45:03 +0530
Amit Daniel Kachhap wrote:
> Sorry I didn't mention my environment. I am using 4.20-rc3 and it has
> all the above 8 extra patches
> mentioned by you.
So that should be fine.
> I read your change description in v3 patchset. You had mentioned there
> that
Hi,
On Fri, Dec 14, 2018 at 3:18 PM Torsten Duwe wrote:
>
> On Thu, Dec 13, 2018 at 11:01:38PM +0530, Amit Daniel Kachhap wrote:
> > On Fri, Nov 30, 2018 at 9:53 PM Torsten Duwe wrote:
> >
> > Hi Torsten,
> >
> > I was testing your patch and it seems to work fine for function trace.
> > However
On Thu, Dec 13, 2018 at 11:01:38PM +0530, Amit Daniel Kachhap wrote:
> On Fri, Nov 30, 2018 at 9:53 PM Torsten Duwe wrote:
>
> Hi Torsten,
>
> I was testing your patch and it seems to work fine for function trace. However
> function graph trace seems broken. Is it work in progress ? or I am
>
On Fri, Nov 30, 2018 at 9:53 PM Torsten Duwe wrote:
>
> Use -fpatchable-function-entry (gcc8) to add 2 NOPs at the beginning
> of each function. Replace the first NOP thus generated with a quick LR
> saver (move it to scratch reg x9), so the 2nd replacement insn, the call
> to ftrace, does not
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