Author: mmacy
Date: Sat May 12 03:45:30 2018
New Revision: 333512
URL: https://svnweb.freebsd.org/changeset/base/333512
Log:
hwpmc(9): clear remaining sample work for hardclock
- fix last minute change in 333509 where by runcount references
to a pmc would remaining causing us to pause loop forever
Approved by: sbruno
Modified:
head/sys/dev/hwpmc/hwpmc_logging.c
Modified: head/sys/dev/hwpmc/hwpmc_logging.c
==============================================================================
--- head/sys/dev/hwpmc/hwpmc_logging.c Sat May 12 01:55:24 2018
(r333511)
+++ head/sys/dev/hwpmc/hwpmc_logging.c Sat May 12 03:45:30 2018
(r333512)
@@ -837,7 +837,8 @@ pmclog_schedule_one_cond(void *arg)
spinlock_enter();
/* tell hardclock not to run again */
- DPCPU_SET(pmc_sampled, 0);
+ if (PMC_CPU_HAS_SAMPLES(PCPU_GET(cpuid)))
+ PMC_CALL_HOOK_UNLOCKED(curthread, PMC_FN_DO_SAMPLES, NULL);
plb = po->po_curbuf[curcpu];
if (plb && plb->plb_ptr != plb->plb_base)
pmclog_schedule_io(po);
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