Is this crash triggered immediately when you log in, or has audio been playing for a while?
In a Terminal, please use 'killall pulseaudio && pulseaudio -vvvv' as Lennart recommends below. You'll need to check the debug output for the buffer_size value. Quoting from the e-mail thread on the upstream development mailing list: --- On Mon, 17.08.09 08:49, Takashi Iwai ([email protected]) wrote: > > At Sun, 16 Aug 2009 18:24:35 -0400, > Daniel Chen wrote: > > > > Hi, > > > > In https://bugs.launchpad.net/ubuntu/+source/alsa-lib/+bug/412677 > > we're debugging an issue where snd_pcm_mmap_begin(), at line 6409 with > > > > *offset = *pcm->appl.ptr % pcm->buffer_size; > > > > appears to have pcm->buffer_size == 0. What's the correct approach in > > handling this corner case? > > We could add a sanity check in the function, of course. > But relying on it doesn't sound nice. > > At least, the caller should be surely at the certain state that the > buffer has been set up, i.e. checking whether snd_pcm_state() returns > SETUP or better condition. Hmm, this bug is triggered in PA apparently. PA doesn't call snd_pcm_mmap_begin() before the setup finished completely. Not sure what's going on here, but this smells as if pcm->buffer_size is not properly initialized. Daniel, does this happen right-away on PA startup? Or does it happen sometime while playing? Could you get us the output of the PA startup phase when running "pulsaudio -vvvv"? This should show us to which value the buffer_size is initialized in the snd_pcm_t. Lennart --- -- pulseaudio crashed with SIGFPE in snd_pcm_mmap_begin() https://bugs.launchpad.net/bugs/412677 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
