[Qemu-devel] -device qxl crashes

[Markus Armbruster]

Reproducer: qemu -nodefaults -S -display none -device qxl

Program received signal SIGSEGV, Segmentation fault.
0x000055555591dc68 in update_displaychangelistener (dcl=0x555556453a78, 
    interval=3000) at /work/armbru/qemu/ui/console.c:1370
1370        if (!ds->refreshing && ds->update_interval > interval) {
(gdb) p ds
$1 = (DisplayState *) 0x0
(gdb) bt
#0  0x000055555591dc68 in update_displaychangelistener (dcl=0x555556453a78, 
    interval=3000) at /work/armbru/qemu/ui/console.c:1370
#1  0x00005555558222f6 in qxl_soft_reset (d=0x5555564531c0)
    at /work/armbru/qemu/hw/display/qxl.c:1158
#2  0x00005555558223a6 in qxl_hard_reset (d=0x5555564531c0, loadvm=0)
    at /work/armbru/qemu/hw/display/qxl.c:1184
#3  0x00005555558223ef in qxl_reset_handler (dev=0x5555564531c0)
    at /work/armbru/qemu/hw/display/qxl.c:1195
#4  0x00005555557e915b in device_reset (dev=0x5555564531c0)
    at /work/armbru/qemu/hw/core/qdev.c:1269
#5  0x00005555557e6a7b in qdev_reset_one (dev=0x5555564531c0, opaque=0x0)
    at /work/armbru/qemu/hw/core/qdev.c:329
#6  0x00005555557e7608 in qdev_walk_children (dev=0x5555564531c0, 
    pre_devfn=0x0, pre_busfn=0x0, post_devfn=0x5555557e6a5f <qdev_reset_one>, 
    post_busfn=0x5555557e6a82 <qbus_reset_one>, opaque=0x0)
    at /work/armbru/qemu/hw/core/qdev.c:643
#7  0x00005555557e74fb in qbus_walk_children (bus=0x5555563b1f00, 
    pre_devfn=0x0, pre_busfn=0x0, post_devfn=0x5555557e6a5f <qdev_reset_one>, 
    post_busfn=0x5555557e6a82 <qbus_reset_one>, opaque=0x0)
    at /work/armbru/qemu/hw/core/qdev.c:601
#8  0x00005555557e75cc in qdev_walk_children (dev=0x5555563d67d0, 
    pre_devfn=0x0, pre_busfn=0x0, post_devfn=0x5555557e6a5f <qdev_reset_one>, 
    post_busfn=0x5555557e6a82 <qbus_reset_one>, opaque=0x0)
    at /work/armbru/qemu/hw/core/qdev.c:635
#9  0x00005555557e74fb in qbus_walk_children (bus=0x5555563bd3c0, 
    pre_devfn=0x0, pre_busfn=0x0, post_devfn=0x5555557e6a5f <qdev_reset_one>, 
    post_busfn=0x5555557e6a82 <qbus_reset_one>, opaque=0x0)
    at /work/armbru/qemu/hw/core/qdev.c:601
#10 0x00005555557e6b57 in qbus_reset_all (bus=0x5555563bd3c0)
    at /work/armbru/qemu/hw/core/qdev.c:350
#11 0x00005555557e6b79 in qbus_reset_all_fn (opaque=0x5555563bd3c0)
    at /work/armbru/qemu/hw/core/qdev.c:356
#12 0x00005555557587b9 in qemu_devices_reset () at /work/armbru/qemu/vl.c:1614
#13 0x0000555555758845 in qemu_system_reset (report=false)
    at /work/armbru/qemu/vl.c:1627
#14 0x0000555555760739 in main (argc=7, argv=0x7fffffffe108, 
    envp=0x7fffffffe148) at /work/armbru/qemu/vl.c:4315