Peter Maydell <peter.mayd...@linaro.org> writes: > On 5 March 2013 13:26, Michael Tokarev <m...@tls.msk.ru> wrote: >> For many years, qemu defaults to 128Mb of guest RAM size. >> Today, this is just too small, and many OSes fails to boot >> with this size, more, they fail to produce any reasonable >> messages either (eg, windows7 just crashes at startup). > > If you make the default bigger then some boards will crash > or behave weirdly because they try to map more RAM in than > will fit into the space for RAM in their address maps. > >> Some distributions (eg ubuntu) had a local patch to increase >> this value, for years. >> >> Maybe it's time to increase the default RAM size a bit? >> Make it arch-specific if needs to be ? > > I tried two years ago to get a 'default RAM size' parameter > added to the QEMUMachine struct, but the patchseries got shot > down because it didn't attempt to address NUMA / simulate > the fact you can only add RAM one DIMM at a time / etc... > > http://lists.gnu.org/archive/html/qemu-devel/2011-03/msg02907.html
As so often, the better we wish we had is the enemy of the good we could have, if we weren't so pig-headed about it.
