I've had this issue for quite a while now and I would imagine it's due to some plugin, I have not tested to temporary remove one or multiple at the same time due to that the freezes/crashes is very random. Sometimes it happens a few times per day and other times server run fine for 2 -3 days until it happen. I wouldn't really call it freeze through as the jvm crash which also produce an hs_err file, but sadly I pretty much don't understand anything at all of them. And I don't think it's due to java itself because I have been running the server with the same setup quite long before any issues appeared. So.. my guess is that it either being some plugin, cpu doesn't manage or hdd issue. hs_err files: Spoiler (Move your mouse to the spoiler area to reveal the content) Show Spoiler Hide Spoiler Feb 18 05:58 - http://pastebin.com/4r4rrpfy Feb 21 02:05 - http://pastebin.com/KL6Tdikd Feb 21 04:37 - http://pastebin.com/w027X3Dh Feb 21 20:51 - http://pastebin.com/WwYWZGva Feb 22 09:39 - http://pastebin.com/RKz90JDU Feb 22 09:39 - http://pastebin.com/cbg7qyEM The "problematic frame" is in majority of cases "libjvm.so" which I would imagine is the library file for the jvm. Plugins Spoiler (Move your mouse to the spoiler area to reveal the content) Show Spoiler Hide Spoiler FilterChat Heroicdeath Minequery WorldInventories Permissionsbukkit Spout Skylandsplus Multiplehomes Lockette ColorMe Multiverse-Core Nocheat RealTeleporter Loginmessage WorldBorder SpawnerAdjuster Worldedit Commandbook Vanishnopacket logblock Worldguard Currently Bukkit build 1940 However, I've had an increased amount of players the latest period but I don't know how sensitive jvm is about hdd load or cpu load. Specs and w/e info Spoiler (Move your mouse to the spoiler area to reveal the content) Show Spoiler Hide Spoiler 12 gb ram where 3.5gb for a ramdisk + 5gb for mc itself. Amd phenom II x4 810 2.99ghz (it does reach 100% when about 25-30 players though) WD digital caviar blue 500gb All worldfiles is located on the ramdisk and the only operations on the hdd is syncing between the ramdisk and hdd every hour as well with mysql working.
"Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again" I'm not sure where you type "ulimit -c unlimited", but that might be the solution.
