Re: [Qemu-devel] about the 'mptable' issue

[Li, Liang Z]

Correct something.
 The actual parameter for QEMU in our test case is: 
 'qemu-systerm-x86_64  -enable-kvm -smp 20 -m 2048 -no-acpi  -monitor stdio
 -drive file=/mnt/centos6u6.qcow, if=none, id=foo -device virtio-blk-pci, 
drive=foo'

if there is no virtio-blk device: ' qemu-systerm-x86_64  -enable-kvm -smp 20 -m 
2048
 -no-acpi  -monitor stdio -drive file=/mnt/centos6u6.qcow', guest can boot 
successfully.
 It seems something wrong which make the virtio-blk work incorrectly.

Liang 



> Subject: about the 'mptable' issue
> 
> Hi Kevin,
> 
> We just found when starting QEMU with the '-smp 20 -no-acpi' option,  the
> centos6.6 or rhel 7.2 guest failed to boot. By debugging, I found it's your
> seabios patch, the commit id '9ee2e26255661a'  caused the failure.
> 
> I don't know what issue your patch tried to fix, assuming it's the right fix,
> should we add some prompt  to prevent users from using such an option?
> Crash the guest is not a good choice.
> 
> 
> Liang