From: Peter Zijlstra <pet...@infradead.org>
After much waiting I finally reproduced a KASAN issue, only to find my
trace-buffer empty of useful information because it got spooled out :/
Make kasan_report honour the /proc/sys/kernel/traceoff_on_warning
interface.
Signed-off-by: Peter Zijlstra (Intel) <pet...@infradead.org>
Acked-by: Alexander Potapenko <gli...@google.com>
Cc: Dmitry Vyukov <dvyu...@google.com>
Cc: Steven Rostedt <rost...@goodmis.org>
Signed-off-by: Andrey Ryabinin <aryabi...@virtuozzo.com>
---
mm/kasan/report.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index b82b3e2..f479365 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -13,6 +13,7 @@
*
*/
+#include <linux/ftrace.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/printk.h>
@@ -300,6 +301,8 @@ void kasan_report(unsigned long addr, size_t size,
if (likely(!kasan_report_enabled()))
return;
+ disable_trace_on_warning();
+
info.access_addr = (void *)addr;
info.access_size = size;
info.is_write = is_write;
--
2.10.2
