On Sun, 2011-02-13 at 09:24 +0100, Ralf Mardorf wrote: > On Sat, 2011-01-29 at 22:02 +0100, Victor henri wrote: > > Hello: > > > > I have a problem since almost one year now. I'm using linuxsampler, > > that allows that load very big sample files (one of my .gig file is > > 1.6 G for only one piano sound); this use disk streaming. > > > > I always have such problem only when i use the RT kernel : > > > > 0x7f6eef1ee860 Disk stream not available in time! > > > > After several message slike that, i get : > > > > DiskThread: there was no free slot > > Disk stream order failed! > > > > Then the sounds clicks, then stops for 10 to 20 seconds, then i can > > play again, then it'll come again... > > > > This arrives on both Gentoo and Ubuntu 10.10 64 bits; BUT there is one > > thing however : there is ONE kernel with wich it doesn't arrive : the > > 2.6.31.11-rt from Ubuntu lucid (RT kernel was in the repositories in > > Ubuntu untill 10.04 Lucid, then now i have to either take it from > > Abogani's ppa (for lucid or natty) or compile it myself with the > > rt-patch from kernel.org; i've tried all of that, and nothings works, > > except for the 2.6.31.11-rt from in the repositories of Ubuntu > > Lucid-updates) > > > > Here are some technical details: > > - I have laptop Asus Core i7 for gamers (supposed to be very > > fast);to be noted : it also happens on another Asus Core I7, but NOT > > on an another Asus Core i3; 4Go RAM; > > - when i compile myself i choose : real-time preemption (of > > course) and Timer frequency 1000 Hz, either on Gentoo or on Ubuntu > > with kernel from kernel.org; nothing else is changed in Ubuntu. > > - i've tried with the no-op cfq scheduler also; i use ext3 on > > Gentoo and ext4 on Ubuntu; > > - have a nvidia graphic card, but no proprietary driver > > installed.... > > > > i have posted that at the linuxsampler mailing list without succes.... > > > > Could please someone help me? i LOVE RT-kernel and its > > capabilities.... What is it in the linux-rt package that is not > > somewhere else and that allows things to work for me....? > > > > Thank you > > > > Victor > > Did you test what will happen, if you copy the configuration of the > 2.6.31.11-rt from Ubuntu Lucid to the source directory, instead of > making your own configuration? Rename it from 'config-2.6.31.11-rt' to > '.config' in the source directory, before you build the kernel. If you > run make oldconfig nothing should be asked. > > Hth, > > Ralf
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