Anyone seeing strangeness with sun-jre14 under NetBSD 2.0?
 	Using the suse91 libraries, running a largist tomcat application.
 	Sooner or later it gets into a tight loop running the garbage
 	collector continually and reporting out of memory.

 	Running with -Xloggc gives a log full of:

 	    603.217: [Full GC 128686K->128686K(303808K), 0.7896230 secs]
 	    604.008: [Full GC 128686K->128686K(303808K), 0.8244400 secs]
 	    [...]

 	Its run with:

 	     -server -Xss1m -Xms300m -Xmx300m -Djava.awt.headless=true

 	values from 200m to 800m have been tried  - the number in
 	parenthesis reflected the desired memory to use, but it always
 	gets to around 130M and hits this loop.

 	The shell is unlimited before starting the java process, a
 	sample list of limits would be:

 	    proc.29527.corename = %n.core
 	    proc.29527.rlimit.cputime.soft = unlimited
 	    proc.29527.rlimit.cputime.hard = unlimited
 	    proc.29527.rlimit.filesize.soft = unlimited
 	    proc.29527.rlimit.filesize.hard = unlimited
 	    proc.29527.rlimit.datasize.soft = 1073741824
 	    proc.29527.rlimit.datasize.hard = 1073741824
 	    proc.29527.rlimit.stacksize.soft = 2093056
 	    proc.29527.rlimit.stacksize.hard = 33554432
 	    proc.29527.rlimit.coredumpsize.soft = unlimited
 	    proc.29527.rlimit.coredumpsize.hard = unlimited
 	    proc.29527.rlimit.memoryuse.soft = unlimited
 	    proc.29527.rlimit.memoryuse.hard = unlimited
 	    proc.29527.rlimit.memorylocked.soft = unlimited
 	    proc.29527.rlimit.memorylocked.hard = unlimited
 	    proc.29527.rlimit.maxproc.soft = 4085
 	    proc.29527.rlimit.maxproc.hard = 4085
 	    proc.29527.rlimit.descriptors.soft = 65536
 	    proc.29527.rlimit.descriptors.hard = 65536
 	    proc.29527.stopfork = 0
 	    proc.29527.stopexec = 0
 	    proc.29527.stopexit = 0

 	maxproc is 4096 and maxfiles is 65536, and neither of those
 	should be being hit.

 	Interestingly a ktrace of an affected process includes:

  16955 java     CALL  mincore(0xae5ff438,0)
  16955 java     RET   mincore 0
  16955 java     CALL  ntp_gettime(2,0,0xae5ff228,8)
  16955 java     RET   ntp_gettime 0
  16955 java     CALL  #179 (unimplemented)(0xae5ff228,8)
  11961 java     CALL  kill(0x7298, SIGPWR)
  11961 java     RET   kill 0
  29336 java     RET   #179 (unimplemented) -1 errno -4 Unknown error: 4294967292
  29336 java     PSIG  SIGRT0 caught handler=0x48076fd0 mask=(3))
  29336 java     CALL  #119 (obsolete resuba)(0xbd7ff3d4)
  29336 java     RET   #119 (obsolete resuba) JUSTRETURN
  29336 java     CALL  ntp_gettime(2,0,0xbd7ff440,8)
  29336 java     RET   ntp_gettime 0
  29336 java     CALL  #179 (unimplemented)(0xbd7ff440,8)
  11961 java     CALL  kill(0x7298, SIGPWR)
  11961 java     RET   kill 0
  29336 java     RET   #179 (unimplemented) -1 errno -4 Unknown error: 4294967292
  29336 java     PSIG  SIGRT0 caught handler=0x48076fd0 mask=(3))
  29336 java     CALL  #119 (obsolete resuba)(0xbd7ff3cc)
  29336 java     RET   #119 (obsolete resuba) JUSTRETURN
  29336 java     CALL  ntp_gettime(2,0,0xbd7ff510,8)
  29336 java     RET   ntp_gettime 0
  29336 java     CALL  #179 (unimplemented)(0xbd7ff510,8)
  11961 java     CALL  kill(0x7298, SIGPWR)
  11961 java     RET   kill 0
  29336 java     RET   #179 (unimplemented) -1 errno -4 Unknown error: 4294967292
  29336 java     PSIG  SIGRT0 caught handler=0x48076fd0 mask=(3))
  29336 java     CALL  #119 (obsolete resuba)(0xbd7ff49c)
  29336 java     RET   #119 (obsolete resuba) JUSTRETURN
  29336 java     CALL  ntp_gettime(2,0,0xbd7ff4c4,8)
  29336 java     RET   ntp_gettime 0
  29336 java     CALL  #179 (unimplemented)(0xbd7ff4c4,8)
  11961 java     CALL  kill(0x7298, SIGPWR)
  11961 java     RET   kill 0
  29336 java     RET   #179 (unimplemented) -1 errno -4 Unknown error: 4294967292
  29336 java     PSIG  SIGRT0 caught handler=0x48076fd0 mask=(3))
  29336 java     CALL  #119 (obsolete resuba)(0xbd7ff450)
  29336 java     RET   #119 (obsolete resuba) JUSTRETURN
  29336 java     CALL  ntp_gettime(2,0,0xbd7ff4f8,8)
  29336 java     RET   ntp_gettime 0
  29336 java     CALL  #179 (unimplemented)(0xbd7ff4f8,8)
  11961 java     CALL  kill(0x7298, SIGPWR)
  11961 java     RET   kill 0
  29336 java     RET   #179 (unimplemented) -1 errno -4 Unknown error: 4294967292
  29336 java     PSIG  SIGRT0 caught handler=0x48076fd0 mask=(3))
  29336 java     CALL  #119 (obsolete resuba)(0xbd7ff484)
  29336 java     RET   #119 (obsolete resuba) JUSTRETURN
  29336 java     CALL  ntp_gettime(2,0,0xbd7ff494,8)
  29336 java     RET   ntp_gettime 0
  29336 java     CALL  #179 (unimplemented)(0xbd7ff494,8)
  11961 java     CALL  ntp_gettime(2,0,0xbd9ff544,8)
  11961 java     RET   ntp_gettime 0
  11961 java     CALL  #179 (unimplemented)(0xbd9ff544,8)
  12631 java     CALL  mincore(0xbdbff9cc,0)
  12631 java     RET   mincore 0
  12631 java     CALL  mincore(0xbdbff9cc,0)
  12631 java     RET   mincore 0
  12631 java     CALL  mincore(0xbdbff878,0)
  12631 java     RET   mincore 0
  12631 java     CALL  mincore(0xbdbff88c,0)
  12631 java     RET   mincore 0
  12631 java     CALL  mincore(0xbdbff878,0)
  12631 java     RET   mincore 0
  12631 java     CALL  mincore(0xbdbff734,0)
  12631 java     RET   mincore 0
  12631 java     CALL  write(3,0x64284000,0x11)
  12631 java     GIO   fd 3 wrote 17 bytes
        "424.229: [Full GC"



-- 
 			   David Brownlee -- abs@absd.org