I just want to check a few things to make sure I got everything right regarding this issue.
If I build PortAudio from source. How do I know that this version is used before the installed binary? Right now I've used prefix /usr, which I guess would replace the binary install. If I use default /usr/local would that library override the binary insall in /usr? I've tried to build PortAudio r1411, but can't say I see any difference from any other version. It's kicked from jack with the error message below. I test on UbuntuStudio 10.04 64-bit with kernel 2.6.31-10-rt, and tried both Mixxx 1.7.1 from download page, and r2407 from trunk. -----jackd output subgraph starting at qjackctl timed out (subgraph_wait_fd=16, status = 0, state = Running, pollret = 0 revents = 0x0) **** alsa_pcm: xrun of at least 0.117 msecs bad status (1) for client PortAudio handling event (type = 5) ----- It seems PortAudio is kicked on the first xrun. Jackd is started with /usr/bin/jackd -R -Z -dalsa -dhw:1 -r44100 -p256 -n2. I guess -Z (nozombies) should make jack keep clients that are too slow, so this must be something else. //Anders 2010/5/29 Albert Santoni <albe...@mixxx.org>: > Thanks for the feedback guys! The bounty is up on Pledgie, if anyone > wants to add to the pot: > > http://pledgie.com/campaigns/10964 > > Thanks again, > Albert > > > On Wed, May 26, 2010 at 9:12 PM, Albert Santoni <albe...@mixxx.org> wrote: >> Hi guys, >> >> It looks like a developer on the PortAudio mailing list has made a >> little bit of progress in troubleshooting our dreaded PortAudio xrun >> deadlock and thread termination problem: >> http://music.columbia.edu/pipermail/portaudio/2010-May/010234.html >> >> (For some info on this bug, see: >> https://bugs.launchpad.net/mixxx/+bug/383431 ) >> >> As far as we know, this bug affects _every_ user on Ubuntu, and as a >> result, on our downloads page we recommend that Ubuntu users install >> an older version of PortAudio. Unfortunately, the users that get Mixxx >> from Synaptic or the Ubuntu Software Centre won't know that, and get >> Mixxx with a deadlock-prone version of PortAudio. >> >> None of us have ever dug into PortAudio's ALSA code seriously enough >> to figure out why the problem happens, probably because we've got >> enough bugs directly inside Mixxx to keep us busy. However, this bug >> is definitely causing problems for a huge number of people, and is >> probably severely affecting the growth of our userbase. We estimate >> roughly 50% of our users run Linux, and since most of those people are >> running Ubuntu, many people's first impressions of Mixxx are likely >> ruined by this bug. Because we get most of our developers from the >> Linux community, this bug needs to be fixed if we want to keep >> growing. >> >> None of the PortAudio maintainers have fixed this bug so far, and none >> of them are expressing any interest in doing it. Thus, we're faced >> with the following decision: Pull our own developer time away from >> Mixxx and try to convince one or more of us to fix the bug in >> PortAudio, or find a way of getting someone else to fix it. I work on >> Mixxx because it's super fun, but my enthusiasm for fixing PortAudio >> is very low, even though it's important to us. I think our entire team >> feels the same way, otherwise someone would have fixed the bug by now. >> >> However, I think this is a great opportunity to put our pool of funds >> that we've received from donations to good use. I'd like us to propose >> a $100 bounty on fixing this bug. It's not a huge amount of money, but >> I think it would provide a little bit of incentive for the guy on the >> PortAudio mailing list who's already started poking at the problem to >> fix it for good. The way I see it is that we have a very important bug >> we want fixed, but we lack the resources to do it ourselves. Over the >> years, we've received approximately $600 in donations from users who >> want to "support and enhance Mixxx development", and I think placing a >> $100 bounty on this bug would be an excellent way to do exactly that. >> >> If anyone would like to share their thoughts or opinions on this, I'm >> all ears. The bounty would be contingent on a fix for virtual and pure >> ALSA devices being committed to the PortAudio SVN repository and >> testing from us that ensures the problem is actually fixed. >> >> Thank you, >> Albert >> > > ------------------------------------------------------------------------------ > > _______________________________________________ > Mixxx-devel mailing list > Mixxx-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/mixxx-devel > -- Anders Gunnarsson Nergårdsvägen 51 436 36 Askim Tel: 031-7804498 Mob: 070-3301018 E-post: d00g...@gmail.com ------------------------------------------------------------------------------ _______________________________________________ Mixxx-devel mailing list Mixxx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mixxx-devel
