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[Qemu-devel] [Bug 1801933] Re: default memory parameter too small on x86
[Qemu-devel] [Bug 1801933] Re: default memory parameter too small on x86_64 today
Wed, 05 Dec 2018 10:58:07 -0000
** Tags added: defaults
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default memory parameter too small on x86_64 today
Status in QEMU:
Launching a centos74 iso VM today does not work anymore on x86_64
without increasing the size of the memory parameter. For example with
this command :
$ /opt/qemu-3.0.0/bin/qemu-system-x86_64 --curses -enable-kvm -drive
file=file.dd,index=0,media=disk -drive file=centos-
[ 3.047614] Failed to execute /init
[ 3.048315] Kernel panic - not syncing: No init found. Try passing init=
option to kernel. See Linux Documentation/init.txt for guidance.
[ 3.049258] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
Increasing the size from the default 128MiB to 512MiB let the VM works
So, ok, it's not a qemu problem, it's more a "User problem" and interface
problem for me.
But it push me in the end to launch VirtualBox instead of qemu, because the
default parameter does not work anymore... And I had no time to investigate why
it does not work because the message is not visible.
Debian iso with the same command line for example show a message to tell me
that there is not enough memory, so it help me to track the real issue behind.
But... In the end, I think today, the default memory parameter on x86_64 is
too small and it can lead some people like me to switch to VirtualBox.
VirtualBox, in the wizard is set by default to 4MiB Ram size, which tell
you... Ok I need to put more. And, you know that 4MiB is not enough in the end.
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Alex Bennée <=