FULL PRODUCT VERSION :
java version "1.7.0_76"
Java(TM) SE Runtime Environment (build 1.7.0_76-b13)
Java HotSpot(TM) 64-Bit Server VM (build 24.76-b04, mixed mode)

FULL OS VERSION :
Linux 2.6.32-504.8.1.el6.x86_64 #1 SMP Wed Jan 28 21:11:36 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

A DESCRIPTION OF THE PROBLEM :
JVM GC thread hangs in os::malloc/malloc call
 

THE PROBLEM WAS REPRODUCIBLE WITH -Xint FLAG: Did not try

THE PROBLEM WAS REPRODUCIBLE WITH -server FLAG: Yes

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Stack trace for the stuck thread:

Thread 10 (Thread 0x7fa458ade700 (LWP 4482)):
#0 0x00000037016f805e in __lll_lock_wait_private () from /lib64/libc.so.6
#1 0x000000370167d16b in _L_lock_9503 () from /lib64/libc.so.6
#2 0x000000370167a6a6 in malloc () from /lib64/libc.so.6
#3 0x00007fa45a52ed29 in os::malloc(unsigned long, unsigned short, unsigned char*) () from /usr/java/jdk1.7.0_76/jre/lib/amd64/server/libjvm.so
#4 0x00007fa459fb66b3 in ChunkPool::allocate(unsigned long, AllocFailStrategy::AllocFailEnum) () from /usr/java/jdk1.7.0_76/jre/lib/amd64/server/libjvm.so
#5 0x00007fa459fb62d1 in Arena::grow(unsigned long, AllocFailStrategy::AllocFailEnum) () from /usr/java/jdk1.7.0_76/jre/lib/amd64/server/libjvm.so
#6 0x00007fa45a145cc0 in CompactibleFreeListSpace::new_dcto_cl(OopClosur

REPRODUCIBILITY :
This bug can be reproduced occasionally.