Author: emaste
Date: Sun Feb 15 20:55:26 2015
New Revision: 278813
URL: https://svnweb.freebsd.org/changeset/base/278813
Log:
Clamp too large hwpmc callchaindepth to maximum
If the depth requested by the user is too large, it's better to provide
the maximum than the smaller default.
MFC of: r274766
Sponsored by: The FreeBSD Foundation
Modified:
stable/10/sys/dev/hwpmc/hwpmc_mod.c
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/sys/dev/hwpmc/hwpmc_mod.c
==============================================================================
--- stable/10/sys/dev/hwpmc/hwpmc_mod.c Sun Feb 15 20:53:50 2015
(r278812)
+++ stable/10/sys/dev/hwpmc/hwpmc_mod.c Sun Feb 15 20:55:26 2015
(r278813)
@@ -4753,8 +4753,9 @@ pmc_initialize(void)
if (pmc_callchaindepth <= 0 ||
pmc_callchaindepth > PMC_CALLCHAIN_DEPTH_MAX) {
(void) printf("hwpmc: tunable \"callchaindepth\"=%d out of "
- "range.\n", pmc_callchaindepth);
- pmc_callchaindepth = PMC_CALLCHAIN_DEPTH;
+ "range - using %d.\n", pmc_callchaindepth,
+ PMC_CALLCHAIN_DEPTH_MAX);
+ pmc_callchaindepth = PMC_CALLCHAIN_DEPTH_MAX;
}
md = pmc_md_initialize();
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