[Qemu-devel] Re: VNC heap corruption when display width is not a multiple of 16

2010-05-05 Thread Andrew Lutomirski
On Tue, May 4, 2010 at 6:12 PM, Andrew Lutomirski wrote: > Hi all- > > The patch below (obviously only for testing) demonstrates the problem > and prevents the crash, but it introduces a black line 8 pixels wide > on the right when running at 1400x1050.  I'm not sure what&#x

[Qemu-devel] VNC heap corruption when display width is not a multiple of 16

2010-05-05 Thread Andrew Lutomirski
Hi all- qemu-kvm quite reliably crashes when running with a VNC viewer connected at 1400x1050. (The crash happens when changing resolution *from* 1400x1050 or disconnecting and reconnecting a client.) The problem is that vnc_refresh_server_surface overruns server->data and corrupts heap metadat

[Qemu-devel] VNC crash (double-free, maybe)

2010-04-23 Thread Andrew Lutomirski
Hi all- Running Windows 7 in KVM with -vga std, I often get VNC-related crashes. This is easiest to trigger by changing the screen resolution, but I sometimes get it disconnecting VNC as well. (This is qemu-kvm. I can't get plain old qemu to work.) This occurs in all the Fedora builds I've tri