I should have search. Short answer it fails and you're out of luck. https://lists.iovisor.org/g/iovisor-dev/topic/accessing_user_memory_and/21386221
On Sun, Feb 16, 2020 at 9:29 PM Hayden Livingston <[email protected]> wrote: > > I'm curios to know how bpf_probe_read is able to read user-mode memory > in the face of page faulting. > > I know in the helper it disables page faulting, but what does that mean? > > If the memory the probe is trying to read is paged out then how does > my probe work? > > It seems bpf_probe_read is best effort then. Is that true? -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#1806): https://lists.iovisor.org/g/iovisor-dev/message/1806 Mute This Topic: https://lists.iovisor.org/mt/71344415/21656 Group Owner: [email protected] Unsubscribe: https://lists.iovisor.org/g/iovisor-dev/unsub [[email protected]] -=-=-=-=-=-=-=-=-=-=-=-
