﻿id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
12426	Cannot start VM with more than 5 network adapters of type Am79C973 => Fixed in SVN	andynor		"On Windows7-64 and Ubuntu-64, upgrading from VirtualBox 4.2.18 to 4.3.4 caused a virtual machine to produce an error message at boot: 

""failed to open a session for the virtual machine <name>.
Failed to allocate 524288 bytes of memory for the PCNet device (VERR_PGM_TOO_MANY_MMIO2_RANGES)""

Result Code: 
E_FAIL (0x80004005)
Component: 
Console
Interface: 
IConsole {8ab7c520-2442-4b66-8d74-4ff1e195d2b6}

The problem is related to having more than 5 (6,7 or 8) network interfaces enabled and is only observed when creating a virtual machine with the ""Linux other"" 32-bit template. The ""Linux other (64-bit)"" has no issues. The difference in config files is PEA, LongMode and IOAPIC enabled in 64 vs 32 bit and the default network adapter type. (32bit: Am79C973 and 64bit: 82540EM. Setting adapter type to 82540EM after using the 32-bit template fixes the problem.

* VBoxManage.exe modifyvm <name> --nic<num> intnet | 1 to 8

* VBoxManage.exe modifyvm <name> --intnet<num> <string> | 1 to 8 with different strings

* VBoxManage.exe modifyvm <name> --nictype<num> 82540EM | 1 to 8

Diff: http://diffchecker.com/ljbxd5lr"	defect	closed	network/hostif	VirtualBox 4.3.4	fixed			Linux	Windows
