Re: [Qemu-ppc] [Qemu-devel] [PATCH v3] qemu crashes when a negative number used for 'maxcpus'

[Bharata B Rao]

Seeteena,

On Mon, Aug 28, 2017 at 7:23 PM, Seeteena Thoufeek <address@hidden> wrote:

---Steps to Reproduce---

When passed a negative number to 'maxcpus' parameter, Qemu aborts
with a core dump.

Run the following command with maxcpus argument as negative number

ppc64-softmmu/qemu-system-ppc64 --nographic -vga none -machine
pseries,accel=kvm,kvm-type=HV -m size=200g -device virtio-blk-pci,
drive=rootdisk -drive file=/home/images/pegas-1.0-ppc64le.qcow2,
if=none,cache=none,id=rootdisk,format=qcow2 -monitor telnet
:127.0.0.1:1234,server,nowait -net nic,model=virtio -net
user -redir tcp:2000::22 -device nec-usb-xhci -smp 8,cores=1,
threads=1,maxcpus=-12

(process:12149): GLib-ERROR **: gmem.c:130: failed to allocate
 18446744073709550568 bytes

Trace/breakpoint trap

Reported-by: R.Nageswara Sastry <address@hidden>
Signed-off-by: Seeteena Thoufeek <address@hidden>
Reviewed-by: Bharata B Rao <address@hidden>

In the bugzilla, I was only suggesting to post the fix upstream and it doesn't mean a Reviewed-by.  You might want to remove this in your next version.

Regards,

Bharata.