[pulseaudio-tickets] [Bug 51060] Crash (segfault) in snd_pcm_area_silence()

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=51060

--- Comment #10 from Jana Saout <jana at saout.de> ---
I've had this problem too and the problem only occurs with -ftree-vectorize.

It looks to me as if this is a gcc bug, as it produces a "movdqa" or "vmovdqa"
instruction which is used with an unaligned pointer.

Now, I have no clue why gcc assumes the pointer would be an aligned one, maybe
it is even right and something else is wrong, but I haven't spent too much time
digging into this.

(note that it still happens with gcc 4.7 and the current 4.8 development one)

Also, this bug should probably be brought up with the alsa guys as well, as I
don't think pulseaudio is at fault here.

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