id	summary	reporter	owner	description	type	status	priority	component	version	resolution	keywords	cc	guest	host
1046	Heavy NAT network usage crashing VBox (hash collision) => Fixed in SVN	gururise		I'm running the latest VBOX 1.5.4 on Ubuntu 7.10 (Gutsy) 64-bit version. On a Quad Core Intel Q6600 processor. My guest OS is Win XP SP2 using NAT in the VBox Network Settings.\r\nWhen I do something VERY network intensive on the guest OS such as running a port scanner or proxy scanner for more than a few minutes, the Virtual Machine core dumps (aborts), and I get the following log:\r\n\r\n\r\n{{{\r\nLog created: 2008-01-04T23:07:56.227929000Z\r\nExecutable: /usr/lib/virtualbox/VirtualBox\r\nArg[0]: /usr/lib/virtualbox/VirtualBox\r\nArg[1]: -comment\r\nArg[2]: WindowsXP\r\nArg[3]: -startvm\r\nArg[4]: f2981c30-2053-45bd-4b97-76e88f9367f9\r\n\r\n!!Assertion Failed!!\r\nExpression: <NULL>\r\nLocation : /home/vbox/vbox-1.5/src/VBox/Devices/Network/slirp/tcp_subr.c(1341) VBoxU32PtrHashSlow\r\nNAT pointer hash error. pv=00002aaab036c890 cpvHashUsed=321 cpvHashCollisions=198\r\n}}}\r\n	defect	closed	critical	network	VirtualBox 1.6.2	fixed	network NAT abort crashing		other	other