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6843347: Boundary values in some public GC options cause crashes

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Setting some public integer options to specific values causes crashes or undefined GC behavior. This patchset adds the necessary argument checking for these options.

Reviewed-by: jmasa, brutisso
This commit is contained in:
Thomas Schatzl 2013-05-15 11:05:09 +02:00
parent 9ce9586188
commit 8d53e75550
12 changed files with 116 additions and 39 deletions
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3
hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp
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@ -692,8 +692,7 @@ CMSCollector::CMSCollector(ConcurrentMarkSweepGeneration* cmsGen,
_cmsGen ->init_initiating_occupancy(CMSInitiatingOccupancyFraction, CMSTriggerRatio);
// Clip CMSBootstrapOccupancy between 0 and 100.
_bootstrap_occupancy = ((double)MIN2((uintx)100, MAX2((uintx)0, CMSBootstrapOccupancy)))
/(double)100;
_bootstrap_occupancy = ((double)CMSBootstrapOccupancy)/(double)100;
_full_gcs_since_conc_gc = 0;