Author: avg
Date: Tue Apr 26 07:40:56 2016
New Revision: 298622
URL: https://svnweb.freebsd.org/changeset/base/298622
Log:
MFC r297846: [amd64] dtrace_invop handler is to be called only for
kernel exceptions
Modified:
stable/9/sys/amd64/amd64/exception.S
Directory Properties:
stable/9/sys/ (props changed)
Modified: stable/9/sys/amd64/amd64/exception.S
==============================================================================
--- stable/9/sys/amd64/amd64/exception.S Tue Apr 26 07:40:07 2016
(r298621)
+++ stable/9/sys/amd64/amd64/exception.S Tue Apr 26 07:40:56 2016
(r298622)
@@ -212,6 +212,8 @@ alltraps_pushregs_no_rdi:
* interrupt. For all other trap types, just handle them in
* the usual way.
*/
+ testb $SEL_RPL_MASK,TF_CS(%rsp) /* Did we come from kernel? */
+ jnz calltrap /* ignore userland traps */
cmpl $T_BPTFLT,TF_TRAPNO(%rsp)
jne calltrap
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