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| author | Shaohua Li <shaohua.li@intel.com> | 2010-07-27 16:06:34 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-08-26 16:45:48 -0700 |
| commit | ee384c27819972c620c2eec0545b9f1472cbe0ab (patch) | |
| tree | a6bc46e4073c931eb72c78edc4dbbcd344f4277a /mm | |
| parent | 3ab47fa1a288f370ced9e9575655151df20c04fc (diff) | |
tracing: Fix an unallocated memory access in function_graph
commit 575570f02761bd680ba5731c1dfd4701062e7fb2 upstream.
With CONFIG_DEBUG_PAGEALLOC, I observed an unallocated memory access in
function_graph trace. It appears we find a small size entry in ring buffer,
but we access it as a big size entry. The access overflows the page size
and touches an unallocated page.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
LKML-Reference: <1280217994.32400.76.camel@sli10-desk.sh.intel.com>
[ Added a comment to explain the problem - SDR ]
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions