[Bug runtime/31500] stapio exited with irqs disabled

["wcohen at redhat dot com" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=31500

--- Comment #8 from William Cohen <wcohen at redhat dot com> ---
Created attachment 15425
  --> https://sourceware.org/bugzilla/attachment.cgi?id=15425&action=edit
Proposed patch to prevent guru probing of kernel __init and __kprobe functions

The kernel init function run when the kernel starts up and then the pages they
are on may be freed and used for other purposes.  It doesn't make sense to
allow them to be probed. At best they will never get hit. At worst the page
they are on may not be mapped in and attempting to register a kprobe on the
nonexistent page will cause page faults that can't be handled. Similarly, It is
unwise to allow kprobes on functions that are marked unsafe for kprobes.  This
attempts to probe those problem areas are only made when guru mode is used. 
This patch prevents guru mode from attempting to probe those problem areas.

-- 
You are receiving this mail because:
You are the assignee for the bug.