[Qemu-devel] Re: audio segfault in qemu-kvm-0.11.0

[malc]

On Fri, 23 Oct 2009, Mark McLoughlin wrote:

> Hi,
> 
> Any ideas on this segfault a Fedora 12 user (Gene, cc-ed) is seeing?
> 
> Thread 1 (Thread 2849):
> #0  0x00007f25fcd10f70 in memset () from /lib64/libc.so.6
> No symbol table info available.
> #1  0x00000000004babc6 in audio_capture_mix_and_clear (samples=-1099358712, 
>     rpos=<value optimized out>, hw=<value optimized out>) at 
> audio/audio.c:1290
>         n = -1099358712
> #2  audio_run_out (samples=-1099358712, rpos=<value optimized out>, 
>     hw=<value optimized out>) at audio/audio.c:1354

I don't even know what this is, there's no audio_run_out at 1354
furthermore signature is completely different..

In any case, this backtrace is useless, everything is optimized out.

>         live = <value optimized out>
>         free = <value optimized out>
>         nb_live = 1
> ---Type <return> to continue, or q <return> to quit---
>         cleanup_required = <value optimized out>
>         played = <value optimized out>
>         hw = <value optimized out>
>         sw = <value optimized out>
> #3  audio_timer (samples=-1099358712, rpos=<value optimized out>, 
>     hw=<value optimized out>) at audio/audio.c:1482
>         s = 0xbb6a20
> #4  0x000000000040a82a in qemu_run_timers (current_time=<value optimized 
> out>, 
>     ptimer_head=0x8322b8) at /usr/src/debug/qemu-kvm-0.11.0/vl.c:1036
>         ts = <value optimized out>
> 
> Full details here:
> 
>   https://bugzilla.redhat.com/528754
> 
> and backtrace here:
> 
>   https://bugzilla.redhat.com/attachment.cgi?id=365541

Summary: No idea.

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