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Re: context[2] stuck: (null)
- From: David Smith <dsmith at redhat dot com>
- To: Arkady <arkady dot miasnikov at gmail dot com>
- Cc: systemtap at sourceware dot org
- Date: Wed, 12 Jul 2017 07:58:46 -0500
- Subject: Re: context[2] stuck: (null)
- Authentication-results: sourceware.org; auth=none
- References: <CANA-60q25-tnw72LjrtgMaavsE=VCee4-66fkOHbKBAHWSNqDA@mail.gmail.com> <CANA-60pAhrCXkzkNS5sY_Cypd-_ky=zfHmxHi-dj06QFkrOQAg@mail.gmail.com> <CANA-60rKy7uxpeF_zSV=nMwGO_oRp_rNHnt-PrWRzG4QivKsrQ@mail.gmail.com>
On Tue, Jul 11, 2017 at 1:46 AM, Arkady <arkady.miasnikov@gmail.com> wrote:
> Update. Some of the system calls I am doing in the begin probe are
> blocking. I understand that it will break things on multicore systems.
> Am I right?
Yes. Systemtap probes can never block.
Perhaps we can suggest some ideas if you tell us a bit more of the
background of what you are trying to do here.
--
David Smith
Principal Software Engineer
Red Hat