Re: context[2] stuck: (null)

[Arkady <arkady.miasnikov@gmail.com>]

On Wed, Jul 12, 2017 at 5:40 PM, Arkady <arkady.miasnikov@gmail.com> wrote:
> On Wed, Jul 12, 2017 at 4:55 PM, David Smith <dsmith@redhat.com> wrote:
>> On Wed, Jul 12, 2017 at 8:16 AM, Arkady <arkady.miasnikov@gmail.com> wrote:
>>> My goal is to allocate the shared memory - one or more large (100s of
>>> MBs) vzallocs,
>>> add a dozen files to the sysfs and debugfs.
>>
>> Note that systemtap already has procfs 'probes', which create procfs files.
>>
>
> procfs API has limitations and inconveniences.
>
>> If we wanted to include this functionality with systemtap, we'd have
>> to generalize this a bit and make it less domain specific. Can you
>> think of a script language extension that would express what you are
>> trying to do here?
>>
>
> I would like to have an Initialization probe which allows use of blocking APIs.

.... for example probe begin_interruptable {}  and probe end_interruptable {}

>
>> --
>> David Smith
>> Principal Software Engineer
>> Red Hat