On Thu, Feb 25, 2021 at 9:15 AM Mathieu Desnoyers
wrote:
>
> - On Feb 24, 2021, at 11:22 AM, Michael Jeanson mjean...@efficios.com
> wrote:
>
> > [ Adding Mathieu Desnoyers in CC ]
> >
> > On 2021-02-23 21 h 16, Steven Rostedt wrote:
> >> On Thu, 18 Feb 2021 17:21:19 -0500
> >> Michael Jeanso
- On Feb 24, 2021, at 1:14 PM, rostedt rost...@goodmis.org wrote:
> On Wed, 24 Feb 2021 11:59:35 -0500 (EST)
> Mathieu Desnoyers wrote:
>>
>> As a prototype solution, what I've done currently is to copy the user-space
>> data into a kmalloc'd buffer in a preparation step before disabling
- Mathieu Desnoyers wrote:
> - On Feb 24, 2021, at 11:22 AM, Michael Jeanson mjean...@efficios.com
> wrote:
>
> > [ Adding Mathieu Desnoyers in CC ]
> >
> > On 2021-02-23 21 h 16, Steven Rostedt wrote:
> >> On Thu, 18 Feb 2021 17:21:19 -0500
> >> Michael Jeanson wrote:
> >>
> >>> Th
On Wed, 24 Feb 2021 11:59:35 -0500 (EST)
Mathieu Desnoyers wrote:
>
> As a prototype solution, what I've done currently is to copy the user-space
> data into a kmalloc'd buffer in a preparation step before disabling preemption
> and copying data over into the per-cpu buffers. It works, but I thin
- On Feb 24, 2021, at 11:22 AM, Michael Jeanson mjean...@efficios.com wrote:
> [ Adding Mathieu Desnoyers in CC ]
>
> On 2021-02-23 21 h 16, Steven Rostedt wrote:
>> On Thu, 18 Feb 2021 17:21:19 -0500
>> Michael Jeanson wrote:
>>
>>> This series only implements the tracepoint infrastructure
[ Adding Mathieu Desnoyers in CC ]
On 2021-02-23 21 h 16, Steven Rostedt wrote:
On Thu, 18 Feb 2021 17:21:19 -0500
Michael Jeanson wrote:
This series only implements the tracepoint infrastructure required to
allow tracers to handle page faults. Modifying each tracer to handle
those page fault
On Thu, 18 Feb 2021 17:21:19 -0500
Michael Jeanson wrote:
> This series only implements the tracepoint infrastructure required to
> allow tracers to handle page faults. Modifying each tracer to handle
> those page faults would be a next step after we all agree on this piece
> of instrumentation i
Formerly known as “Sleepable tracepoints”.
When invoked from system call enter/exit instrumentation, accessing
user-space data is a common use-case for tracers. However, tracepoints
currently disable preemption around iteration on the registered
tracepoint probes and invocation of the probe callba
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