]> git.karo-electronics.de Git - linux-beck.git/commit
perf: Disallow user-space callchains for function trace events
authorJiri Olsa <jolsa@redhat.com>
Sun, 2 Mar 2014 15:56:38 +0000 (16:56 +0100)
committerIngo Molnar <mingo@kernel.org>
Tue, 11 Mar 2014 10:57:57 +0000 (11:57 +0100)
commitcfa77bc4af2c75c0781ee76cde2dd104c6c8e2b7
tree5ebefacf14f3b4f852179744836f64a1dcd07e7c
parentef11dadb8373fcbe53bdd09ceb262b2f18da10c5
perf: Disallow user-space callchains for function trace events

Recent issues with user space callchains processing within
page fault handler tracing showed as Peter said 'there's
just too much fail surface'.

Related list discussions:

  http://marc.info/?t=139302086500001&r=1&w=2
  http://marc.info/?t=139301437300003&r=1&w=2

Suggested-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1393775800-13524-2-git-send-email-jolsa@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
kernel/trace/trace_event_perf.c