The above patch:
commit 873b4d3f0571a1e415cf089a67a230ea8a12d059
Author: Efimov Vasily <r...@ispras.ru>
Date: Wed Jun 22 15:24:46 2016 +0300
pcspk: convert "pit" property type from ptr to link
adds a regression (segfault). Was this patch actually tested?
Cmdline:
x86_64-softmmu/qemu-system-x86_64 -enable-kvm
Backtrace:
#0 object_get_class (obj=obj@entry=0x0) at qom/object.c:744
No locals.
#1 0x00005555559aa061 in pit_get_channel_info (dev=<optimized out>,
channel=<optimized out>, info=0x7ffff0d1d840) at hw/timer/i8254_common.c:147
pit = 0x0
__func__ = "pit_get_channel_info"
s = 0x1f0
c = <optimized out>
#2 0x00005555558d7b2c in pcspk_io_read (opaque=0x555557db4e30, addr=<optimized out>,
size=<optimized out>) at hw/audio/pcspk.c:136
ch = {gate = 255, mode = 0, initial_count = 1528560384, out =
-1873283211}
#3 0x000055555579202c in memory_region_read_accessor (mr=0x555557db4eb0,
addr=0, value=0x7ffff0d1da30, size=1, shift=0, mask=255, attrs=...) at
/home/lieven/git/qemu/memory.c:434
tmp = <optimized out>
#4 0x000055555578fa4b in access_with_adjusted_size (addr=addr@entry=0,
value=value@entry=0x7ffff0d1da30, size=size@entry=1, access_size_min=<optimized out>,
access_size_max=<optimized out>,
access=access@entry=0x555555791ff0 <memory_region_read_accessor>,
mr=mr@entry=0x555557db4eb0, attrs=attrs@entry=...) at
/home/lieven/git/qemu/memory.c:591
access_mask = 255
access_size = 1
i = <optimized out>
r = 0
#5 0x00005555557940de in memory_region_dispatch_read1 (attrs=..., size=1,
pval=0x7ffff0d1da30, addr=0, mr=0x555557db4eb0) at
/home/lieven/git/qemu/memory.c:1181
No locals.
#6 memory_region_dispatch_read (mr=mr@entry=0x555557db4eb0, addr=addr@entry=0,
pval=pval@entry=0x7ffff0d1da30, size=size@entry=1, attrs=attrs@entry=...) at
/home/lieven/git/qemu/memory.c:1212
No locals.
#7 0x000055555574cf9a in address_space_read_continue (as=as@entry=0x5555560c1080
<address_space_io>, addr=addr@entry=97, attrs=..., attrs@entry=...,
buf=buf@entry=0x7ffff7fef000 " \030", len=len@entry=1,
addr1=0, l=1, mr=0x555557db4eb0) at /home/lieven/git/qemu/exec.c:2680
ptr = <optimized out>
val = 0
result = 0
release_lock = true
#8 0x000055555574d047 in address_space_read_full (as=0x5555560c1080 <address_space_io>,
addr=97, addr@entry=93824994760285, attrs=..., buf=0x7ffff7fef000 " \030", len=1,
len@entry=0)
at /home/lieven/git/qemu/exec.c:2725
l = 1
addr1 = 0
mr = <optimized out>
result = 0
#9 0x000055555574d1be in address_space_read (len=0, buf=<optimized out>, attrs=...,
addr=93824994760285, as=<optimized out>) at
/home/lieven/git/qemu/include/exec/memory.h:1454
result = 0
#10 address_space_rw (as=<optimized out>, addr=addr@entry=97, attrs=...,
attrs@entry=..., buf=<optimized out>, len=len@entry=1, is_write=is_write@entry=false)
at /home/lieven/git/qemu/exec.c:2739
No locals.
#11 0x000055555578e675 in kvm_handle_io (count=1, size=1, direction=<optimized out>,
data=<optimized out>, attrs=..., port=97) at /home/lieven/git/qemu/kvm-all.c:1772
i = 0
ptr = <optimized out>
#12 kvm_cpu_exec (cpu=cpu@entry=0x5555565b0c60) at
/home/lieven/git/qemu/kvm-all.c:1936
attrs = {unspecified = 0, secure = 0, user = 0, requester_id = 0}
run = 0x7ffff7fee000
ret = <optimized out>
run_ret = <optimized out>
Peter
