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[Qemu-devel] [Bug 1412098] Re: qemu crashes when ctrl-alt-u is pressed

From: Ingo Krabbe
Subject: [Qemu-devel] [Bug 1412098] Re: qemu crashes when ctrl-alt-u is pressed
Date: Fri, 20 Feb 2015 09:01:30 -0000

A build from the current master attached in gdb reveals

Program received signal SIGSEGV, Segmentation fault.
sdl_switch (dcl=0x7f4db26e4b20, address@hidden) at ui/sdl.c:128
128         PixelFormat pf = qemu_pixelformat_from_pixman(new_surface->format);
(gdb) bt
#0  sdl_switch (dcl=0x7f4db26e4b20, address@hidden) at ui/sdl.c:128
#1  0x00007f4dafdff9c4 in handle_keydown (ev=0x7fff1598ef60) at ui/sdl.c:552
#2  sdl_refresh (dcl=0x7f4db26e4b20) at ui/sdl.c:799
#3  0x00007f4dafdf33b2 in dpy_refresh (s=0x7f4db2792b40) at ui/console.c:1473
#4  gui_update (opaque=0x7f4db2792b40) at ui/console.c:196
#5  0x00007f4dafe30179 in timerlist_run_timers (timer_list=0x7f4db1dd4900) at 
#6  0x00007f4dafe30414 in qemu_clock_run_timers (type=<optimized out>) at 
#7  qemu_clock_run_all_timers () at qemu-timer.c:621
#8  0x00007f4dafe2ebac in main_loop_wait (nonblocking=<optimized out>) at 
#9  0x00007f4dafb8fe66 in main_loop () at vl.c:1794
#10 main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at 
(gdb) p new_surface
$1 = (DisplaySurface *) 0x0

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  qemu crashes when ctrl-alt-u is pressed

Status in QEMU:

Bug description:
  Qemu version: 2.2.0 release, compiled from source
  Host OS: Windows 7 Ultimate x64
  Guest OS: not applicable, crash occurs even without OS and occurs with all OSs
  Executable: qemu-system-i386.exe or qemu-system-i386w.exe

  To reproduce:
  Start qemu-system-i386 or qemu-system-i386w without any options. Press 
CTRL-ALT-U, which is supposed to rescale the window. Instead, qemu just crashes.

  Qemu 2.2.0 release compiled from sources under MinGW on the host.
  Configure options used:
  '../qemu-2.2.0/configure' '--python=C:/Python27/python' 
'--prefix=/mingw/build/qemu-2.2.0-bin' '--target-list=i386-softmmu'

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