[libvirt] FYI: qemu silently clipping large integers in JSON protocol

Richard W.M. Jones rjones at redhat.com
Fri May 20 19:20:33 UTC 2011


This thread may be of interest:

http://lists.gnu.org/archive/html/qemu-devel/2011-05/threads.html#02162

Currently, qemu silently clips any JSON integer in the range
0x8000_0000_0000_0000 - 0xffff_ffff_ffff_ffff (all numbers in this
range will be clipped to 0x7fff_ffff_ffff_ffff == LLONG_MAX).

This basically could affect any libvirt code in this file which uses
the "U:..." prefix as far as I can tell:

http://libvirt.org/git/?p=libvirt.git;a=blob;f=src/qemu/qemu_monitor_json.c;hb=HEAD

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-p2v converts physical machines to virtual machines.  Boot with a
live CD or over the network (PXE) and turn machines into Xen guests.
http://et.redhat.com/~rjones/virt-p2v




More information about the libvir-list mailing list