> >> liburcu has configure options allow forcing the usage of this syscall
> >> but not disabling it, which likely is necessary for Xenomai.
> >
> > I suspect what you'd need there is a way to allow a process to tell
> > liburcu-bp (or liburcu) to always use the fall-back mechan
> >> >> > Another thing to make sure is to have a glibc and Linux kernel which
> >> >> > perform
> >> >> > clock_gettime() as vDSO for the monotonic clock, because you don't
> >> >> > want a
> >> >> > system call there. If that does not work for you, you can
> >> >> > alternatively
> >> >> > imp
- On Nov 22, 2019, at 2:57 PM, Norbert Lange nolang...@gmail.com wrote:
> Am Fr., 22. Nov. 2019 um 20:00 Uhr schrieb Mathieu Desnoyers
> :
>>
>> - On Nov 22, 2019, at 12:44 PM, Norbert Lange nolang...@gmail.com wrote:
>>
>> > Am Fr., 22. Nov. 2019 um 16:52 Uhr schrieb Jan Kiszka
>> > :
>>
Am Fr., 22. Nov. 2019 um 20:03 Uhr schrieb Mathieu Desnoyers
:
>
> - On Nov 22, 2019, at 12:55 PM, Norbert Lange nolang...@gmail.com wrote:
>
> >>
> >> LTTng-UST prepares the ring buffers from lttng-ust's "listener" thread,
> >> which is injected into the process by a lttng-ust constructor.
> >
Am Fr., 22. Nov. 2019 um 20:00 Uhr schrieb Mathieu Desnoyers
:
>
> - On Nov 22, 2019, at 12:44 PM, Norbert Lange nolang...@gmail.com wrote:
>
> > Am Fr., 22. Nov. 2019 um 16:52 Uhr schrieb Jan Kiszka
> > :
> >>
> >> On 22.11.19 16:42, Mathieu Desnoyers wrote:
>
> [...]
>
> >
> >
> >> >
> >> >
- On Nov 22, 2019, at 12:55 PM, Norbert Lange nolang...@gmail.com wrote:
>>
>> LTTng-UST prepares the ring buffers from lttng-ust's "listener" thread,
>> which is injected into the process by a lttng-ust constructor.
>>
>> What you will care about is how the tracepoint call-site (within a Xeno
- On Nov 22, 2019, at 12:44 PM, Norbert Lange nolang...@gmail.com wrote:
> Am Fr., 22. Nov. 2019 um 16:52 Uhr schrieb Jan Kiszka
> :
>>
>> On 22.11.19 16:42, Mathieu Desnoyers wrote:
[...]
>
>
>> >
>> > That's indeed a good point. I suspect membarrier may not send any IPI
>> > to Xenomai
On 22.11.19 19:01, Norbert Lange wrote:
Am Fr., 22. Nov. 2019 um 18:52 Uhr schrieb Jan Kiszka :
On 22.11.19 18:44, Norbert Lange wrote:
Am Fr., 22. Nov. 2019 um 16:52 Uhr schrieb Jan Kiszka :
On 22.11.19 16:42, Mathieu Desnoyers wrote:
- On Nov 22, 2019, at 4:14 AM, Norbert Lange nolang
Am Fr., 22. Nov. 2019 um 18:52 Uhr schrieb Jan Kiszka :
>
> On 22.11.19 18:44, Norbert Lange wrote:
> > Am Fr., 22. Nov. 2019 um 16:52 Uhr schrieb Jan Kiszka
> > :
> >>
> >> On 22.11.19 16:42, Mathieu Desnoyers wrote:
> >>> - On Nov 22, 2019, at 4:14 AM, Norbert Lange nolang...@gmail.com
> >>
>
> LTTng-UST prepares the ring buffers from lttng-ust's "listener" thread,
> which is injected into the process by a lttng-ust constructor.
>
> What you will care about is how the tracepoint call-site (within a Xenomai
> thread) interacts with the ring buffers.
>
> The "default" setup for lttng-us
On 22.11.19 18:44, Norbert Lange wrote:
Am Fr., 22. Nov. 2019 um 16:52 Uhr schrieb Jan Kiszka :
On 22.11.19 16:42, Mathieu Desnoyers wrote:
- On Nov 22, 2019, at 4:14 AM, Norbert Lange nolang...@gmail.com wrote:
Hello,
I already started a thread over at xenomai.org [1], but I guess its
Am Fr., 22. Nov. 2019 um 16:52 Uhr schrieb Jan Kiszka :
>
> On 22.11.19 16:42, Mathieu Desnoyers wrote:
> > - On Nov 22, 2019, at 4:14 AM, Norbert Lange nolang...@gmail.com wrote:
> >
> >> Hello,
> >>
> >> I already started a thread over at xenomai.org [1], but I guess its
> >> more efficient t
On 22.11.19 18:01, Mathieu Desnoyers wrote:
## membarrier syscall
I haven't got an explanation yet, but I believe this syscall does
nothing to xenomai threads (each has a shadow linux thread, that is
*idle* when the xenomai thread is active).
That's indeed a good point. I suspect membarrier m
- On Nov 22, 2019, at 10:52 AM, Jan Kiszka jan.kis...@siemens.com wrote:
> On 22.11.19 16:42, Mathieu Desnoyers wrote:
>> - On Nov 22, 2019, at 4:14 AM, Norbert Lange nolang...@gmail.com wrote:
>>
>>> Hello,
>>>
>>> I already started a thread over at xenomai.org [1], but I guess its
>>> m
On 22.11.19 16:42, Mathieu Desnoyers wrote:
- On Nov 22, 2019, at 4:14 AM, Norbert Lange nolang...@gmail.com wrote:
Hello,
I already started a thread over at xenomai.org [1], but I guess its
more efficient to ask here aswell.
The basic concept is that xenomai thread run *below* Linux (thre
- On Nov 22, 2019, at 4:14 AM, Norbert Lange nolang...@gmail.com wrote:
> Hello,
>
> I already started a thread over at xenomai.org [1], but I guess its
> more efficient to ask here aswell.
> The basic concept is that xenomai thread run *below* Linux (threads
> and irg handlers), which means
Hello,
I already started a thread over at xenomai.org [1], but I guess its
more efficient to ask here aswell.
The basic concept is that xenomai thread run *below* Linux (threads
and irg handlers), which means that xenomai threads must not use any
linux services like the futex syscall or socket com
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