Talk:BeagleBoard/DSP Clarification

Revision as of 02:30, 15 May 2009 by Felipec (talk | contribs) (tidspbridge stability)
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Oldest implementation

dsp-gateway is not the oldest implementation, just the first one to be open source.--Jkridner 21:45, 6 May 2009 (UTC)

Right, I meant the oldest open source implementation, feel free to re-word. -- Felipec 00:05, 8 May 2009 (UTC)
I changed it to "It's the first open implementation and currently the more open" -- Felipec 23:14, 14 May 2009 (UTC)

tidspbridge stability

In my experience the DSP bridge is far from stable. I see multiple crashes and hangs, and I can even reboot the device by following a sequence of commands. Also proof of the instability is the multiple critical fixes that are being sent to linux-omap mailing list all the time. -- Felipec 10:16, 9 May 2009 (UTC)

Wikipedia and personal opinion "A stable version is one that has been through enough real-world testing to reasonably assume there are no showstopper problems, or at least that any problems are known and documented." but that does not mean that it won't benefit from any bug fix or enhancements. A fork from the stable version will be the code cleanup and redesign that is planned which might uncover some corner cases in bridge and open source modules as well. Again, any bug report is welcomed. -Omar_rmz 17:20, 9 May 2009 (UTC)

Exactly, there are showstopper problems therefore it's not stable. A bug is simply 'unexpected behavior' and there many kinds, some of the worst are; crashes and deadlocks, but the bridgedriver goes to an even worst level; it reboots the device. You can say it's a "corner-case" because you have seen it very rarely in your occasional testing, but when a device goes into production there would be thousands, perhaps millions of people, using it constantly with a much wider variety of clips. A corner-case that reboots the device is absolutely showstopper. -- Felipec 22:10, 9 May 2009 (UTC)
Please let me know when you report this as a formal bug or provide at least steps to reproduce. - Omar_rmz 00:35, 14 May 2009 (UTC)
I removed the comments regarding stability for now, both on dspbridge and mailbox/iommu. I have not seen TI saying that iommu/mailbox are not stable, please provide a reference. As for the dspbridge stability, if you don't continue the discussion here I'll add the comment again saying that it's unstable. -- Felipec 23:19, 14 May 2009 (UTC)
Again my personal opinion doesn't reflect a company, or are you speaking on behalf of Nokia? Look at my original comment "There are plans to share the mailbox and iommu that the dsp-gateway uses, whenever they are stable and have the full set of features supported by tidspbridge custom implementations, as well as to move parts of it to user-space." Do not rephrase and ask for references of things that you wrote. - Omar_rmz 00:35, 14 May 2009 (UTC)
I'm speaking as a member of the community. You said 'whenever they are stable' which means they are not stable yet, if TI considers them stable then there's no point in saying 'whenever they are stable'.

tidspbridge and pm

Omar: you added this "but now, after a lot of progress in pm branch, bridgedriver must be aligned with linux-omap-pm" there reference points to a master branch where there is no bridge driver, what is that supposed to prove? There are other branches in omapzoom that have the bridgedriver, I guess using a different pm than linux-omap. I'll remove that comment for now. Please provide a valid reference. -- Felipec 23:30, 14 May 2009 (UTC)

Agree on that, don't have a solid reference it was a personal opinion - Omar_rmz 00:47, 14 May 2009 (UTC)