From d1eeed6a5ba0ac35f9dcad6355fc2d18c1860a9f Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Wed, 20 Jul 2011 06:54:51 +0200 Subject: output/alsa: fix SIGFPE when alsa announces a period size of 0 --- src/output/alsa_plugin.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'src/output') diff --git a/src/output/alsa_plugin.c b/src/output/alsa_plugin.c index 9177fabe4..422264f53 100644 --- a/src/output/alsa_plugin.c +++ b/src/output/alsa_plugin.c @@ -508,6 +508,14 @@ configure_hw: g_debug("buffer_size=%u period_size=%u", (unsigned)alsa_buffer_size, (unsigned)alsa_period_size); + if (alsa_period_size == 0) + /* this works around a SIGFPE bug that occurred when + an ALSA driver indicated period_size==0; this + caused a division by zero in alsa_play(). By using + the fallback "1", we make sure that this won't + happen again. */ + alsa_period_size = 1; + ad->period_frames = alsa_period_size; ad->period_position = 0; -- cgit v1.2.3