> On Wed, 06.01.10 05:53, David Henningsson (launchpad.web at epost.diwic.se) > wrote: > >> Thanks for the pointers, they were most helpful. >> >> First, RtKit version is 0.4-0ubuntu2, OS is Ubuntu 10.04 (the >> development >> version). If that matters. >> >> I had trouble getting rtkit-test succeeding at first, and a long story >> short, I was likely affected by this bug: >> http://www.spinics.net/lists/linux-fsdevel/msg28757.html >> ...so I had to try an bleeding edge kernel, in which rtkit-test works. >> >> After some additional debugging, I found that my original problem was >> that >> the rt-priority I requested was too high for rtkit to accept. So the >> permission problem comes from rtkit, the process_set_realtime() call >> returns -EPERM. So an additional question: would it be possible to >> either >> detect that highest value rtkit can deliver, or say "hey, I want x, but >> if >> you only can give me y, do that instead of failing"? In worst case, I >> could do a binary search, but I'm glad if that could be avoided :-) >> The same would be nice for the maximum value of RLIMIT_RTTIME. > > Hmm, yes, I guess that would make sense indeed. Adding this as props > should be very simple. It wasn't that difficult even for a dbus newbie as myself. I took the liberty of stealing a few lines from pulseaudio's reserve.c [1]. >> This is one of the things I love most about Linux/FOSS, the ability to >> debug wherever you want. I ended up inserting some debug prints in >> rtkit-daemon to nail the problem down - had rtkit been a Windows system >> service delivered by Microsoft, I'd probably still be stuck! > > He. Free Software also lives from contributions. So if you want to see > these properties added quickly, then prep a clean patch and I'll merge > it. ;-) Hopefully the patch attached will do the job and be clean enough for you! // David [1] You, Lennart, is the only copyright holder and it's BSD license. I assume you don't mind :-) -------------- next part -------------- A non-text attachment was scrubbed... Name: 0001-Add-dbus-properties-for-returning-rttime-nsec-max-ma.patch Type: text/x-patch Size: 4807 bytes Desc: not available URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20100117/2fbeefb0/attachment.bin>
