From a96bbc16418bc691317f265d6bf98ba941ca9c1a Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Wed, 3 Jun 2009 14:01:36 +0200 Subject: [PATCH] perf_counter: Fix race in counter initialization We need the PID namespace and counter ID available when the counter overflows and we need to generate a sample event. [ Impact: fix kernel crash with high-frequency sampling ] Reported-by: Ingo Molnar Signed-off-by: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Corey Ashford Cc: Marcelo Tosatti Cc: Arnaldo Carvalho de Melo Cc: Thomas Gleixner Cc: John Kacur LKML-Reference: [ fixed a further crash and cleaned up the initialization a bit ] Signed-off-by: Ingo Molnar --- Reading git-format-patch failed