[Openal-devel] openal-soft

[Jason Daly]

Chris Robinson wrote:
>
> That backtrace is very odd. I can't see how '*list' would ever crash 
> since 'list' is always set by taking the address of the the next device in 
> the list (and there's no way it can't be in the list since that's where it 
> got the device handle from to try and close in the first place).
>
> Perhaps it's actually crashing on the mixing thread. Can you get a backtrace 
> of the other threads?
>   

Could you post that trace again?  I deleted the original message, but 
now I might be running into the same problem.  I'm purposely not closing 
the device because I still need to work around a limitation of the SI 
for the moment.  Anyway, here's my trace:


Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1208603904 (LWP 14665)]
alcCloseDevice (pDevice=0xb5624298)
    at /irl/work/jdaly/audio/openal-soft-1.2.218/Alc/ALc.c:1207
1207            while(*list != pDevice)
Current language:  auto; currently c
(gdb) where
#0  alcCloseDevice (pDevice=0xb5624298)
    at /irl/work/jdaly/audio/openal-soft-1.2.218/Alc/ALc.c:1207
#1  0x060bc0ca in ReleaseALC ()
    at /irl/work/jdaly/audio/openal-soft-1.2.218/Alc/ALc.c:1248
#2  0x060bab91 in my_deinit ()
    at /irl/work/jdaly/audio/openal-soft-1.2.218/OpenAL32/OpenAL32.c:65
#3  0x060af652 in __do_global_dtors_aux ()
   from /irl/work/jdaly/audio/openal/lib/libopenal.so.1
#4  0x060c8fcc in _fini () from 
/irl/work/jdaly/audio/openal/lib/libopenal.so.1
#5  0x00ac46de in _dl_fini () from /lib/ld-linux.so.2
#6  0x00b02859 in exit () from /lib/libc.so.6
#7  0x00aecdf4 in __libc_start_main () from /lib/libc.so.6
#8  0x08048591 in _start ()
(gdb) list
1202        if ((pDevice)&&(!pDevice->IsCaptureDevice))
1203        {
1204            SuspendContext(NULL);
1205
1206            list = &g_pDeviceList;
1207            while(*list != pDevice)
1208                list = &(*list)->next;
1209
1210            *list = (*list)->next;
1211            g_ulDeviceCount--;
(gdb) print *list
Cannot access memory at address 0x2c
(gdb)


-- 

--"J"

"I'm a castaway stranded in a desolate land,
 I can see the footprints in the virtual sand."
	--Neil Peart

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