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Re: [Xen-devel] [Bug] Fix for QEMU 0.8.1 Window Freeze
- To: "Huang2, Wei" <Wei.Huang2@xxxxxxx>
- From: "Christian Limpach" <christian.limpach@xxxxxxxxx>
- Date: Tue, 11 Jul 2006 23:33:54 +0100
- Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Christian Limpach <Christian.Limpach@xxxxxxxxxxxxx>
- Delivery-date: Tue, 11 Jul 2006 15:36:16 -0700
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On 7/11/06, Huang2, Wei <Wei.Huang2@xxxxxxx> wrote:
We had trouble with the latest QEMU 0.8.1 tree
(http://xenbits.xensource.com/chris/xs-tools-ioemu.pq.hg). Basically,
QEMU window appeared but freezed immediately. This happened to both
32-bit and 64-bit hypervisors.
The root cause of this problem is in vnc-fixes patch. It removes
initialization of gui_timer (see below), which actually is used by
gui_update() in vl.c. Retaining these two statements will fix the
problem and QEMU can perform normally.
That's not the root cause because the gui_timer is obselete, or at
least it should be.
gui_update only calls display_state.dpy_refresh but the vnc-fixes
patch also changes vnc_update_client to call dpy_refresh and that gets
called from the vs->timer.
Could you check if somehow the vnc_update_client doesn't get called for you?
christian
===========
diff -r 15da4d2106fe vl.c
--- a/vl.c Thu Jul 06 14:27:28 2006 +0100
+++ b/vl.c Thu Jul 06 20:19:49 2006 +0100
@@ -5972,8 +5972,7 @@ int main(int argc, char **argv)
kernel_filename, kernel_cmdline, initrd_filename,
timeoffset);
- gui_timer = qemu_new_timer(rt_clock, gui_update, NULL); <===
- qemu_mod_timer(gui_timer, qemu_get_clock(rt_clock)); <===
+ display_state.dpy_refresh(&display_state);
#ifdef CONFIG_GDBSTUB
if (use_gdbstub) {
...
===========
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