JDK-7016112 : CMS: crash during promotion testing
  • Type: Bug
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: hs20
  • Priority: P3
  • Status: Closed
  • Resolution: Fixed
  • OS: windows
  • CPU: generic
  • Submitted: 2011-01-31
  • Updated: 2014-04-24
  • Resolved: 2011-09-30
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JDK 7 JDK 8 Other
7u2Fixed 8Fixed hs22Fixed
Related Reports
Relates :  
JDK-6988347 - CMS: assert(obj->is_oop()) failed: expected an oop
Relates :  
JDK-7023180 - Change in specified-to-be-unspecified ordering of getDeclaredMethods causes application problems
Description
jdk7b124 crashed during promotion testing in CMS thread
...
Comments
Now with no-permgen could we remove our own copy of quicksort and use the library version again?
24-04-2014
EVALUATION http://hg.openjdk.java.net/hsx/hotspot-rt/hotspot/rev/04760e41b01e
08-07-2011
EVALUATION http://hg.openjdk.java.net/hsx/hotspot-comp/hotspot/rev/04760e41b01e
08-07-2011
EVALUATION http://hg.openjdk.java.net/hsx/hotspot-gc/hotspot/rev/04760e41b01e
30-06-2011
SUGGESTED FIX I implemented my own quicksort that does a full 32/64 bit swap instead of byte-by-byte swap. I ran this for 65 hours on my wokstations without a crash. On my laptop I ran it for for 66 hours straight. This build has the extra fix that sorts each method array 2000 times. With the stdlib:qsort() this crashes within 1 minute.
13-06-2011