Author: marcel
Date: Wed Jul 2 22:13:07 2014
New Revision: 268186
URL: http://svnweb.freebsd.org/changeset/base/268186
Log:
Drop KTR records when we're in the debugger so that the debugger isn't
changing or overwriting the trace buffer. When KTR is enabled for things
like traps or pmap functions, the amount of logging can be substantial.
Modified:
head/sys/kern/kern_ktr.c
Modified: head/sys/kern/kern_ktr.c
==============================================================================
--- head/sys/kern/kern_ktr.c Wed Jul 2 22:09:06 2014 (r268185)
+++ head/sys/kern/kern_ktr.c Wed Jul 2 22:13:07 2014 (r268186)
@@ -41,6 +41,7 @@ __FBSDID("$FreeBSD$");
#include <sys/alq.h>
#include <sys/cons.h>
#include <sys/cpuset.h>
+#include <sys/kdb.h>
#include <sys/kernel.h>
#include <sys/ktr.h>
#include <sys/libkern.h>
@@ -323,7 +324,7 @@ ktr_tracepoint(u_int mask, const char *f
#endif
int cpu;
- if (panicstr)
+ if (panicstr || kdb_active)
return;
if ((ktr_mask & mask) == 0 || ktr_buf == NULL)
return;
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