tree 532a8665fb0a60fb62a0a27656a00d8829454cd1
parent 4f9e5df211a8591b3fb5c154ecc7ec5d4ecd6b79
parent 8a56d7761d2d041ae5e8215d20b4167d8aa93f51
author Linus Torvalds <torvalds@linux-foundation.org> 1385517861 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1385517861 -0800
mergetag object 8a56d7761d2d041ae5e8215d20b4167d8aa93f51
 type commit
 tag trace-fixes-v3.13-rc1
 tagger Steven Rostedt <rostedt@rostedt.homelinux.com> 1385515925 -0500
 
 This includes two fixes.
 
 1) is a bug fix that happens when root does the following:
 
   echo function_graph > current_tracer
   modprobe foo
   echo nop > current_tracer
 
 This causes the ftrace internal accounting to get screwed up and
 crashes ftrace, preventing the user from using the function tracer
 after that.
 
 2) if a TRACE_EVENT has a string field, and NULL is given for it.
 
 The internal trace event code does a strlen() and strcpy() on the
 source of field. If it is NULL it causes the system to oops.
 
 This bug has been there since 2.6.31, but no TRACE_EVENT ever passed
 in a NULL to the string field, until now.
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Merge tag 'trace-fixes-v3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "This includes two fixes.

  1) is a bug fix that happens when root does the following:

     echo function_graph > current_tracer
     modprobe foo
     echo nop > current_tracer

   This causes the ftrace internal accounting to get screwed up and
   crashes ftrace, preventing the user from using the function tracer
   after that.

  2) if a TRACE_EVENT has a string field, and NULL is given for it.

   The internal trace event code does a strlen() and strcpy() on the
   source of field.  If it is NULL it causes the system to oops.

   This bug has been there since 2.6.31, but no TRACE_EVENT ever passed
   in a NULL to the string field, until now"

* tag 'trace-fixes-v3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  ftrace: Fix function graph with loading of modules
  tracing: Allow events to have NULL strings