svn commit: r353483 - head/sys/dev/hwpmc

Matt Macy mmacy at FreeBSD.org
Sun Oct 13 22:26:56 UTC 2019


Author: mmacy
Date: Sun Oct 13 22:26:55 2019
New Revision: 353483
URL: https://svnweb.freebsd.org/changeset/base/353483

Log:
  Fix sample check in hwpmc
  
  Don't drop samples with callchain pending
  
  Tested by: mjg@
  
  Submitted by:	Rajeeb Barman at amd.com
  MFC after:	1 week
  Differential Revision:	https://reviews.freebsd.org/D17011

Modified:
  head/sys/dev/hwpmc/hwpmc_mod.c

Modified: head/sys/dev/hwpmc/hwpmc_mod.c
==============================================================================
--- head/sys/dev/hwpmc/hwpmc_mod.c	Sun Oct 13 19:58:37 2019	(r353482)
+++ head/sys/dev/hwpmc/hwpmc_mod.c	Sun Oct 13 22:26:55 2019	(r353483)
@@ -4828,7 +4828,7 @@ pmc_capture_user_callchain(int cpu, int ring, struct t
 			nfree++;
 #endif
 		if (ps->ps_td != td ||
-		   ps->ps_nsamples == PMC_USER_CALLCHAIN_PENDING ||
+		   ps->ps_nsamples != PMC_USER_CALLCHAIN_PENDING ||
 		   ps->ps_pmc->pm_state != PMC_STATE_RUNNING)
 			continue;
 


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