[pulseaudio-discuss] [PATCH] loopback: Fix crash if Max Request change at unload

[David Henningsson]

On 03/23/2012 02:47 PM, Dalleau, Frederic wrote:
> Hi David,
>
>> For reference, the stack trace is here:
>>
>> https://bugs.launchpad.net/bugs/946400
>
> It is likely that the issues related : here is the backtrace I got
> after applying your patch (without mine)
>
> #0  0xb7e9b520 in adjust_rates (u=0x80b3668) at modules/module-loopback.c:174
> #1  0xb7e9d372 in sink_input_process_msg_cb (obj=0x80f2728, code=10,
> data=0x0, offset=0, chunk=0x0)
>      at modules/module-loopback.c:530
> #2  0xb7c31f9b in pa_asyncmsgq_dispatch (object=0x80f2728, code=10,
> userdata=0x0, offset=0, memchunk=0xbfffe96c)
>      at pulsecore/asyncmsgq.c:322
> #3  0xb7c320e1 in pa_asyncmsgq_flush (a=0x8100ea0, run=true) at
> pulsecore/asyncmsgq.c:347
> #4  0xb7c990fa in pa_thread_mq_done (q=0x80a7da0) at pulsecore/thread-mq.c:107
> #5  0xb7ced418 in stop_thread (u=0x80a7d70) at
> modules/bluetooth/module-bluetooth-device.c:2455
> #6  0xb7cedf1f in card_set_profile (c=0x80a6a98, new_profile=0x80b1ed8)

This is puzzling. Exact what is it failing on and why? Could you set a 
breakpoint right before the crash, and examine the relevant values?

-- 
David Henningsson, Canonical Ltd.
http://launchpad.net/~diwic